Release 3.2.0-alpha

Apply PM corrections to all models

docs/local-server.md

@@ -2,7 +2,7 @@
 
 From [firmware version 3.0.10](firmwares) onwards, the AirGradient ONE and Open Air monitors have below API available. 
 
-#### Discovery
+### Discovery
 
 The monitors run a mDNS discovery. So within the same network, the monitor can be accessed through:
 
@@ -11,7 +11,7 @@ http://airgradient_{{serialnumber}}.local
 
 The following requests are possible:
 
-#### Get Current Air Quality (GET)
+### Get Current Air Quality (GET)
 
 With the path "/measures/current" you can get the current air quality data.
 
@@ -80,7 +80,7 @@ You get the following response:
 
 Compensated values apply correction algorithms to make the sensor values more accurate. Temperature and relative humidity correction is only applied on the outdoor monitor Open Air but the properties _compensated will still be send also for the indoor monitor AirGradient ONE.
 
-#### Get Configuration Parameters (GET)
+### Get Configuration Parameters (GET)
 
 "/config" path returns the current configuration of the monitor.
 
@@ -111,7 +111,7 @@ Compensated values apply correction algorithms to make the sensor values more ac
 }
 ```
 
-#### Set Configuration Parameters (PUT)
+### Set Configuration Parameters (PUT)
 
 Configuration parameters can be changed with a PUT request to the monitor, e.g.
 
@@ -131,11 +131,11 @@ Example to set monitor to Celsius
  
   ``` -d "{\"param\":\"value\"}" ```
 
-#### Avoiding Conflicts with Configuration on AirGradient Server
+### Avoiding Conflicts with Configuration on AirGradient Server
 
 If the monitor is set up on the AirGradient dashboard, it will also receive the configuration parameters from there. In case you do not want this, please set `configurationControl` to `local`. In case you set it to `cloud` and want to change it to `local`, you need to make a factory reset. 
 
-#### Configuration Parameters (GET/PUT)
+### Configuration Parameters (GET/PUT)
 
 | Properties                        | Description                                                      | Type    | Accepted Values                                                                                                                         | Example                                         |
 |-----------------------------------|:-----------------------------------------------------------------|---------|-----------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------|
@@ -154,15 +154,18 @@ If the monitor is set up on the AirGradient dashboard, it will also receive the
 | `ledBarTestRequested`             | Can be set to trigger a test.                                    | Boolean | `true` : LEDs will run test sequence                                                                                                    | `{"ledBarTestRequested": true}`                 |
 | `noxLearningOffset`               | Set NOx learning gain offset.                                    | Number  | 0-720 (default 12)                                                                                                                      | `{"noxLearningOffset": 12}`                     |
 | `tvocLearningOffset`              | Set VOC learning gain offset.                                    | Number  | 0-720 (default 12)                                                                                                                      | `{"tvocLearningOffset": 12}`                    |
-| `offlineMode`                     | Set monitor to run without WiFi.                                 | Boolean |  `false`: Disabled (default) <br> `true`: Enabled                                                                                       | `{"offlineMode": true}`                         |
 | `monitorDisplayCompensatedValues` | Set the display show the PM value with/without compensate  value (only on [3.1.9]()) | Boolean | `false`: Without compensate (default) <br> `true`: with compensate                                                                      | `{"monitorDisplayCompensatedValues": false }`   |
 | `corrections`                     | Sets correction options to display and measurement values on local server response. (version >= [3.1.11]())    | Object |  _see corrections section_             | _see corrections section_                         |
 
 
+**Notes**
 
-#### Corrections
+- `offlineMode` : the device will disable all network operation, and only show measurements on the display and ledbar; Read-Only; Change can be apply using reset button on boot.
+- `disableCloudConnection` : disable every request to AirGradient server, means features like post data to AirGradient server, configuration from AirGradient server and automatic firmware updates are disabled. This configuration overrides `configurationControl` and `postDataToAirGradient`; Read-Only; Change can be apply from wifi setup webpage.
 
-The `corrections` object allows configuring PM2.5 correction algorithms and parameters locally. This affects both the display and local server response values.
+### Corrections
+
+The `corrections` object allows configuring PM2.5, Temperature and Humidity correction algorithms and parameters locally. This affects both the display, local server response and open metrics values.
 
 Example correction configuration:
 
@@ -176,11 +179,29 @@ Example correction configuration:
         "scalingFactor": 0,
         "useEpa2021": false
       }
+    },
+    "atmp": {
+      "correctionAlgorithm": "<Option In String>",
+      "slr": {
+        "intercept": 0,
+        "scalingFactor": 0
       }
+    },
+    "rhum": {
+      "correctionAlgorithm": "<Option In String>",
+      "slr": {
+        "intercept": 0,
+        "scalingFactor": 0
+      }
+    },
   }
 }
 ```
 
+#### PM 2.5
+
+Field Name: `pm02`
+
 | Algorithm | Value | Description | SLR required |
 |------------|-------------|------|---------| 
 | Raw | `"none"` | No correction (default) | No |
@@ -214,3 +235,23 @@ curl --location -X PUT 'http://airgradient_84fce612eff4.local/config' --header '
 ```bash
 curl --location -X PUT 'http://airgradient_84fce612eff4.local/config' --header 'Content-Type: application/json' --data '{"corrections":{"pm02":{"correctionAlgorithm":"slr_PMS5003_20240104","slr":{"intercept":0,"scalingFactor":0.02896,"useEpa2021":true}}}}'
 ```
+
+#### Temperature & Humidity
+
+Field Name:
+- Temperature: `atmp`
+- Humidity: `rhum`
+
+| Algorithm | Value | Description | SLR required |
+|------------|-------------|------|---------| 
+| Raw | `"none"` | No correction (default) | No |
+| AirGradient Standard Correction | `"ag_pms5003t_2024"` | Using standard airgradient correction (for outdoor monitor)| No |
+| Custom | `"custom"` | custom corrections constant, set `intercept` and `scalingFactor` manually | Yes | 
+
+*Table above apply for both Temperature and Humidity*
+
+**Example**
+
+```bash
+curl --location -X PUT 'http://airgradient_84fce612eff4.local/config' --header 'Content-Type: application/json' --data '{"corrections":{"atmp":{"correctionAlgorithm":"custom","slr":{"intercept":0.2,"scalingFactor":1.1}}}}'
+```

examples/BASIC/BASIC.ino

@@ -55,7 +55,7 @@ CC BY-SA 4.0 Attribution-ShareAlike 4.0 International License
 static AirGradient ag(DIY_BASIC);
 static Configuration configuration(Serial);
 static AgApiClient apiClient(Serial, configuration);
-static Measurements measurements;
+static Measurements measurements(configuration);
 static OledDisplay oledDisplay(configuration, measurements, Serial);
 static StateMachine stateMachine(oledDisplay, Serial, measurements,
                                  configuration);
@@ -124,6 +124,7 @@ void setup() {
   apiClient.setAirGradient(&ag);
   openMetrics.setAirGradient(&ag);
   localServer.setAirGraident(&ag);
+  measurements.setAirGradient(&ag);
 
   /** Example set custom API root URL */
   // apiClient.setApiRoot("https://example.custom.api");
@@ -149,9 +150,12 @@ void setup() {
         initMqtt();
         sendDataToAg();
 
+        if (configuration.getConfigurationControl() !=
+            ConfigurationControl::ConfigurationControlLocal) {
           apiClient.fetchServerConfiguration();
+        }
         configSchedule.update();
-        if (apiClient.isFetchConfigureFailed()) {
+        if (apiClient.isFetchConfigurationFailed()) {
           if (apiClient.isNotAvailableOnDashboard()) {
             stateMachine.displaySetAddToDashBoard();
             stateMachine.displayHandle(
@@ -316,7 +320,7 @@ static void mqttHandle(void) {
   }
 
   if (mqttClient.isConnected()) {
-    String payload = measurements.toString(true, fwMode, wifiConnector.RSSI(), ag, configuration);
+    String payload = measurements.toString(true, fwMode, wifiConnector.RSSI());
     String topic = "airgradient/readings/" + ag.deviceId();
     if (mqttClient.publish(topic.c_str(), payload.c_str(), payload.length())) {
       Serial.println("MQTT sync success");
@@ -331,7 +335,7 @@ static void sendDataToAg() {
   stateMachine.displayHandle(AgStateMachineWiFiOkServerConnecting);
 
   delay(1500);
-  if (apiClient.sendPing(wifiConnector.RSSI(), measurements.bootCount)) {
+  if (apiClient.sendPing(wifiConnector.RSSI(), measurements.bootCount())) {
     stateMachine.displayHandle(AgStateMachineWiFiOkServerConnected);
   } else {
     stateMachine.displayHandle(AgStateMachineWiFiOkServerConnectFailed);
@@ -415,6 +419,14 @@ static void failedHandler(String msg) {
 }
 
 static void configurationUpdateSchedule(void) {
+  if (configuration.isOfflineMode() ||
+      configuration.getConfigurationControl() == ConfigurationControl::ConfigurationControlLocal) {
+    Serial.println("Ignore fetch server configuration. Either mode is offline "
+                   "or configurationControl set to local");
+    apiClient.resetFetchConfigurationStatus();
+    return;
+  }
+
   if (apiClient.fetchServerConfiguration()) {
     configUpdateHandle();
   }
@@ -472,7 +484,7 @@ static void appDispHandler(void) {
   if (configuration.isOfflineMode() == false) {
     if (wifiConnector.isConnected() == false) {
       state = AgStateMachineWiFiLost;
-    } else if (apiClient.isFetchConfigureFailed()) {
+    } else if (apiClient.isFetchConfigurationFailed()) {
       state = AgStateMachineSensorConfigFailed;
       if (apiClient.isNotAvailableOnDashboard()) {
         stateMachine.displaySetAddToDashBoard();
@@ -518,19 +530,24 @@ static void updatePm(void) {
 
 static void sendDataToServer(void) {
   /** Increment bootcount when send measurements data is scheduled */
-  measurements.bootCount++;
+  int bootCount = measurements.bootCount() + 1;
+  measurements.setBootCount(bootCount);
 
-  /** Ignore send data to server if postToAirGradient disabled */
+  if (configuration.isOfflineMode() || !configuration.isPostDataToAirGradient()) {
-  if (configuration.isPostDataToAirGradient() == false ||
+    Serial.println("Skipping transmission of data to AG server. Either mode is offline "
-      configuration.isOfflineMode()) {
+                   "or post data to server disabled");
     return;
   }
 
-  String syncData = measurements.toString(false, fwMode, wifiConnector.RSSI(), ag, configuration);
+  if (wifiConnector.isConnected() == false) {
+    Serial.println("WiFi not connected, skipping data transmission to AG server");
+    return;
+  }
+
+  String syncData = measurements.toString(false, fwMode, wifiConnector.RSSI());
   if (apiClient.postToServer(syncData)) {
     Serial.println();
-    Serial.println(
+    Serial.println("Online mode and isPostToAirGradient = true");
-        "Online mode and isPostToAirGradient = true: watchdog reset");
     Serial.println();
   }
 }

examples/BASIC/LocalServer.cpp

@@ -53,7 +53,7 @@ void LocalServer::_GET_metrics(void) {
 }
 
 void LocalServer::_GET_measure(void) {
-  String toSend = measure.toString(true, fwMode, wifiConnector.RSSI(), *ag, config);
+  String toSend = measure.toString(true, fwMode, wifiConnector.RSSI());
   server.send(200, "application/json", toSend);
 }
 

examples/BASIC/OpenMetrics.cpp

@@ -43,7 +43,7 @@ String OpenMetrics::getPayload(void) {
              "1 if the AirGradient device was able to successfully fetch its "
              "configuration from the server",
              "gauge");
-  add_metric_point("", apiClient.isFetchConfigureFailed() ? "0" : "1");
+  add_metric_point("", apiClient.isFetchConfigurationFailed() ? "0" : "1");
 
   add_metric(
       "post_ok",
@@ -57,46 +57,45 @@ String OpenMetrics::getPayload(void) {
       "gauge", "dbm");
   add_metric_point("", String(wifiConnector.RSSI()));
 
-  if (config.hasSensorS8 && measure.CO2 >= 0) {
+  // Initialize default invalid value for each measurements
-    add_metric("co2",
-               "Carbon dioxide concentration as measured by the AirGradient S8 "
-               "sensor, in parts per million",
-               "gauge", "ppm");
-    add_metric_point("", String(measure.CO2));
-  }
-
   float _temp = utils::getInvalidTemperature();
   float _hum = utils::getInvalidHumidity();
   int pm01 = utils::getInvalidPmValue();
   int pm25 = utils::getInvalidPmValue();
   int pm10 = utils::getInvalidPmValue();
   int pm03PCount = utils::getInvalidPmValue();
+  int co2 = utils::getInvalidCO2();
   int atmpCompensated = utils::getInvalidTemperature();
-  int ahumCompensated = utils::getInvalidHumidity();
+  int rhumCompensated = utils::getInvalidHumidity();
   int tvoc = utils::getInvalidVOC();
-  int tvoc_raw = utils::getInvalidVOC();
+  int tvocRaw = utils::getInvalidVOC();
   int nox = utils::getInvalidNOx();
-  int nox_raw = utils::getInvalidNOx();
+  int noxRaw = utils::getInvalidNOx();
 
   if (config.hasSensorSHT) {
     _temp = measure.getFloat(Measurements::Temperature);
     _hum = measure.getFloat(Measurements::Humidity);
     atmpCompensated = _temp;
-    ahumCompensated = _hum;
+    rhumCompensated = _hum;
   }
 
   if (config.hasSensorPMS1) {
     pm01 = measure.get(Measurements::PM01);
-    pm25 = measure.get(Measurements::PM25);
+    float correctedPm = measure.getCorrectedPM25(false, 1);
+    pm25 = round(correctedPm);
     pm10 = measure.get(Measurements::PM10);
     pm03PCount = measure.get(Measurements::PM03_PC);
   }
 
   if (config.hasSensorSGP) {
     tvoc = measure.get(Measurements::TVOC);
-    tvoc_raw = measure.get(Measurements::TVOCRaw);
+    tvocRaw = measure.get(Measurements::TVOCRaw);
     nox = measure.get(Measurements::NOx);
-    nox_raw = measure.get(Measurements::NOxRaw);
+    noxRaw = measure.get(Measurements::NOxRaw);
+  }
+
+  if (config.hasSensorS8) {
+    co2 = measure.get(Measurements::CO2);
   }
 
   if (config.hasSensorPMS1) {
@@ -138,12 +137,12 @@ String OpenMetrics::getPayload(void) {
                  "gauge");
       add_metric_point("", String(tvoc));
     }
-    if (utils::isValidVOC(tvoc_raw)) {
+    if (utils::isValidVOC(tvocRaw)) {
       add_metric("tvoc_raw",
                  "The raw input value to the Total Volatile Organic Compounds "
                  "(TVOC) index as measured by the AirGradient SGP sensor",
                  "gauge");
-      add_metric_point("", String(tvoc_raw));
+      add_metric_point("", String(tvocRaw));
     }
     if (utils::isValidNOx(nox)) {
       add_metric("nox_index",
@@ -152,15 +151,23 @@ String OpenMetrics::getPayload(void) {
                  "gauge");
       add_metric_point("", String(nox));
     }
-    if (utils::isValidNOx(nox_raw)) {
+    if (utils::isValidNOx(noxRaw)) {
       add_metric("nox_raw",
                  "The raw input value to the Nitrous Oxide (NOx) index as "
                  "measured by the AirGradient SGP sensor",
                  "gauge");
-      add_metric_point("", String(nox_raw));
+      add_metric_point("", String(noxRaw));
     }
   }
 
+  if (utils::isValidCO2(co2)) {
+    add_metric("co2",
+               "Carbon dioxide concentration as measured by the AirGradient S8 "
+               "sensor, in parts per million",
+               "gauge", "ppm");
+    add_metric_point("", String(co2));
+  }
+
   if (utils::isValidTemperature(_temp)) {
     add_metric(
         "temperature",
@@ -184,12 +191,12 @@ String OpenMetrics::getPayload(void) {
         "gauge", "percent");
     add_metric_point("", String(_hum));
   }
-  if (utils::isValidHumidity(ahumCompensated)) {
+  if (utils::isValidHumidity(rhumCompensated)) {
     add_metric("humidity_compensated",
                "The compensated relative humidity as measured by the "
                "AirGradient SHT / PMS sensor",
                "gauge", "percent");
-    add_metric_point("", String(ahumCompensated));
+    add_metric_point("", String(rhumCompensated));
   }
 
   response += "# EOF\n";

examples/DiyProIndoorV3_3/DiyProIndoorV3_3.ino

@@ -55,7 +55,7 @@ CC BY-SA 4.0 Attribution-ShareAlike 4.0 International License
 static AirGradient ag(DIY_PRO_INDOOR_V3_3);
 static Configuration configuration(Serial);
 static AgApiClient apiClient(Serial, configuration);
-static Measurements measurements;
+static Measurements measurements(configuration);
 static OledDisplay oledDisplay(configuration, measurements, Serial);
 static StateMachine stateMachine(oledDisplay, Serial, measurements,
                                  configuration);
@@ -124,6 +124,7 @@ void setup() {
   apiClient.setAirGradient(&ag);
   openMetrics.setAirGradient(&ag);
   localServer.setAirGraident(&ag);
+  measurements.setAirGradient(&ag);
 
   /** Example set custom API root URL */
   // apiClient.setApiRoot("https://example.custom.api");
@@ -149,9 +150,12 @@ void setup() {
         initMqtt();
         sendDataToAg();
 
+        if (configuration.getConfigurationControl() !=
+            ConfigurationControl::ConfigurationControlLocal) {
           apiClient.fetchServerConfiguration();
+        }
         configSchedule.update();
-        if (apiClient.isFetchConfigureFailed()) {
+        if (apiClient.isFetchConfigurationFailed()) {
           if (apiClient.isNotAvailableOnDashboard()) {
             stateMachine.displaySetAddToDashBoard();
             stateMachine.displayHandle(
@@ -373,7 +377,7 @@ static void mqttHandle(void) {
   }
 
   if (mqttClient.isConnected()) {
-    String payload = measurements.toString(true, fwMode, wifiConnector.RSSI(), ag, configuration);
+    String payload = measurements.toString(true, fwMode, wifiConnector.RSSI());
     String topic = "airgradient/readings/" + ag.deviceId();
     if (mqttClient.publish(topic.c_str(), payload.c_str(), payload.length())) {
       Serial.println("MQTT sync success");
@@ -388,7 +392,7 @@ static void sendDataToAg() {
   stateMachine.displayHandle(AgStateMachineWiFiOkServerConnecting);
 
   delay(1500);
-  if (apiClient.sendPing(wifiConnector.RSSI(), measurements.bootCount)) {
+  if (apiClient.sendPing(wifiConnector.RSSI(), measurements.bootCount())) {
     stateMachine.displayHandle(AgStateMachineWiFiOkServerConnected);
   } else {
     stateMachine.displayHandle(AgStateMachineWiFiOkServerConnectFailed);
@@ -467,6 +471,14 @@ static void failedHandler(String msg) {
 }
 
 static void configurationUpdateSchedule(void) {
+  if (configuration.isOfflineMode() ||
+      configuration.getConfigurationControl() == ConfigurationControl::ConfigurationControlLocal) {
+    Serial.println("Ignore fetch server configuration. Either mode is offline "
+                   "or configurationControl set to local");
+    apiClient.resetFetchConfigurationStatus();
+    return;
+  }
+
   if (apiClient.fetchServerConfiguration()) {
     configUpdateHandle();
   }
@@ -524,7 +536,7 @@ static void appDispHandler(void) {
   if (configuration.isOfflineMode() == false) {
     if (wifiConnector.isConnected() == false) {
       state = AgStateMachineWiFiLost;
-    } else if (apiClient.isFetchConfigureFailed()) {
+    } else if (apiClient.isFetchConfigurationFailed()) {
       state = AgStateMachineSensorConfigFailed;
       if (apiClient.isNotAvailableOnDashboard()) {
         stateMachine.displaySetAddToDashBoard();
@@ -570,19 +582,24 @@ static void updatePm(void) {
 
 static void sendDataToServer(void) {
   /** Increment bootcount when send measurements data is scheduled */
-  measurements.bootCount++;
+  int bootCount = measurements.bootCount() + 1;
+  measurements.setBootCount(bootCount);
 
-  /** Ignore send data to server if postToAirGradient disabled */
+  if (configuration.isOfflineMode() || !configuration.isPostDataToAirGradient()) {
-  if (configuration.isPostDataToAirGradient() == false ||
+    Serial.println("Skipping transmission of data to AG server. Either mode is offline "
-      configuration.isOfflineMode()) {
+                   "or post data to server disabled");
     return;
   }
 
-  String syncData = measurements.toString(false, fwMode, wifiConnector.RSSI(), ag, configuration);
+  if (wifiConnector.isConnected() == false) {
+    Serial.println("WiFi not connected, skipping data transmission to AG server");
+    return;
+  }
+
+  String syncData = measurements.toString(false, fwMode, wifiConnector.RSSI());
   if (apiClient.postToServer(syncData)) {
     Serial.println();
-    Serial.println(
+    Serial.println("Online mode and isPostToAirGradient = true");
-        "Online mode and isPostToAirGradient = true: watchdog reset");
     Serial.println();
   }
 }

examples/DiyProIndoorV3_3/LocalServer.cpp

@@ -53,7 +53,7 @@ void LocalServer::_GET_metrics(void) {
 }
 
 void LocalServer::_GET_measure(void) {
-  String toSend = measure.toString(true, fwMode, wifiConnector.RSSI(), *ag, config);
+  String toSend = measure.toString(true, fwMode, wifiConnector.RSSI());
   server.send(200, "application/json", toSend);
 }
 

examples/DiyProIndoorV3_3/OpenMetrics.cpp

@@ -43,7 +43,7 @@ String OpenMetrics::getPayload(void) {
              "1 if the AirGradient device was able to successfully fetch its "
              "configuration from the server",
              "gauge");
-  add_metric_point("", apiClient.isFetchConfigureFailed() ? "0" : "1");
+  add_metric_point("", apiClient.isFetchConfigurationFailed() ? "0" : "1");
 
   add_metric(
       "post_ok",
@@ -57,46 +57,45 @@ String OpenMetrics::getPayload(void) {
       "gauge", "dbm");
   add_metric_point("", String(wifiConnector.RSSI()));
 
-  if (config.hasSensorS8 && measure.CO2 >= 0) {
+  // Initialize default invalid value for each measurements
-    add_metric("co2",
-               "Carbon dioxide concentration as measured by the AirGradient S8 "
-               "sensor, in parts per million",
-               "gauge", "ppm");
-    add_metric_point("", String(measure.CO2));
-  }
-
   float _temp = utils::getInvalidTemperature();
   float _hum = utils::getInvalidHumidity();
   int pm01 = utils::getInvalidPmValue();
   int pm25 = utils::getInvalidPmValue();
   int pm10 = utils::getInvalidPmValue();
   int pm03PCount = utils::getInvalidPmValue();
+  int co2 = utils::getInvalidCO2();
   int atmpCompensated = utils::getInvalidTemperature();
-  int ahumCompensated = utils::getInvalidHumidity();
+  int rhumCompensated = utils::getInvalidHumidity();
   int tvoc = utils::getInvalidVOC();
-  int tvoc_raw = utils::getInvalidVOC();
+  int tvocRaw = utils::getInvalidVOC();
   int nox = utils::getInvalidNOx();
-  int nox_raw = utils::getInvalidNOx();
+  int noxRaw = utils::getInvalidNOx();
 
   if (config.hasSensorSHT) {
     _temp = measure.getFloat(Measurements::Temperature);
     _hum = measure.getFloat(Measurements::Humidity);
     atmpCompensated = _temp;
-    ahumCompensated = _hum;
+    rhumCompensated = _hum;
   }
 
   if (config.hasSensorPMS1) {
     pm01 = measure.get(Measurements::PM01);
-    pm25 = measure.get(Measurements::PM25);
+    float correctedPm = measure.getCorrectedPM25(false, 1);
+    pm25 = round(correctedPm);
     pm10 = measure.get(Measurements::PM10);
     pm03PCount = measure.get(Measurements::PM03_PC);
   }
 
   if (config.hasSensorSGP) {
     tvoc = measure.get(Measurements::TVOC);
-    tvoc_raw = measure.get(Measurements::TVOCRaw);
+    tvocRaw = measure.get(Measurements::TVOCRaw);
     nox = measure.get(Measurements::NOx);
-    nox_raw = measure.get(Measurements::NOxRaw);
+    noxRaw = measure.get(Measurements::NOxRaw);
+  }
+
+  if (config.hasSensorS8) {
+    co2 = measure.get(Measurements::CO2);
   }
 
   if (config.hasSensorPMS1) {
@@ -138,12 +137,13 @@ String OpenMetrics::getPayload(void) {
                  "gauge");
       add_metric_point("", String(tvoc));
     }
-    if (utils::isValidVOC(tvoc_raw)) {
+
+    if (utils::isValidVOC(tvocRaw)) {
       add_metric("tvoc_raw",
                  "The raw input value to the Total Volatile Organic Compounds "
                  "(TVOC) index as measured by the AirGradient SGP sensor",
                  "gauge");
-      add_metric_point("", String(tvoc_raw));
+      add_metric_point("", String(tvocRaw));
     }
     if (utils::isValidNOx(nox)) {
       add_metric("nox_index",
@@ -152,15 +152,23 @@ String OpenMetrics::getPayload(void) {
                  "gauge");
       add_metric_point("", String(nox));
     }
-    if (utils::isValidNOx(nox_raw)) {
+    if (utils::isValidNOx(noxRaw)) {
       add_metric("nox_raw",
                  "The raw input value to the Nitrous Oxide (NOx) index as "
                  "measured by the AirGradient SGP sensor",
                  "gauge");
-      add_metric_point("", String(nox_raw));
+      add_metric_point("", String(noxRaw));
     }
   }
 
+  if (utils::isValidCO2(co2)) {
+    add_metric("co2",
+               "Carbon dioxide concentration as measured by the AirGradient S8 "
+               "sensor, in parts per million",
+               "gauge", "ppm");
+    add_metric_point("", String(co2));
+  }
+
   if (utils::isValidTemperature(_temp)) {
     add_metric(
         "temperature",
@@ -184,12 +192,12 @@ String OpenMetrics::getPayload(void) {
         "gauge", "percent");
     add_metric_point("", String(_hum));
   }
-  if (utils::isValidHumidity(ahumCompensated)) {
+  if (utils::isValidHumidity(rhumCompensated)) {
     add_metric("humidity_compensated",
                "The compensated relative humidity as measured by the "
                "AirGradient SHT / PMS sensor",
                "gauge", "percent");
-    add_metric_point("", String(ahumCompensated));
+    add_metric_point("", String(rhumCompensated));
   }
 
   response += "# EOF\n";

examples/DiyProIndoorV4_2/DiyProIndoorV4_2.ino

@@ -55,7 +55,7 @@ CC BY-SA 4.0 Attribution-ShareAlike 4.0 International License
 static AirGradient ag(DIY_PRO_INDOOR_V4_2);
 static Configuration configuration(Serial);
 static AgApiClient apiClient(Serial, configuration);
-static Measurements measurements;
+static Measurements measurements(configuration);
 static OledDisplay oledDisplay(configuration, measurements, Serial);
 static StateMachine stateMachine(oledDisplay, Serial, measurements,
                                  configuration);
@@ -125,6 +125,7 @@ void setup() {
   apiClient.setAirGradient(&ag);
   openMetrics.setAirGradient(&ag);
   localServer.setAirGraident(&ag);
+  measurements.setAirGradient(&ag);
 
   /** Example set custom API root URL */
   // apiClient.setApiRoot("https://example.custom.api");
@@ -176,9 +177,12 @@ void setup() {
         initMqtt();
         sendDataToAg();
 
+        if (configuration.getConfigurationControl() !=
+            ConfigurationControl::ConfigurationControlLocal) {
           apiClient.fetchServerConfiguration();
+        }
         configSchedule.update();
-        if (apiClient.isFetchConfigureFailed()) {
+        if (apiClient.isFetchConfigurationFailed()) {
           if (apiClient.isNotAvailableOnDashboard()) {
             stateMachine.displaySetAddToDashBoard();
             stateMachine.displayHandle(
@@ -396,7 +400,7 @@ static void mqttHandle(void) {
   }
 
   if (mqttClient.isConnected()) {
-    String payload = measurements.toString(true, fwMode, wifiConnector.RSSI(), ag, configuration);
+    String payload = measurements.toString(true, fwMode, wifiConnector.RSSI());
     String topic = "airgradient/readings/" + ag.deviceId();
     if (mqttClient.publish(topic.c_str(), payload.c_str(), payload.length())) {
       Serial.println("MQTT sync success");
@@ -411,7 +415,7 @@ static void sendDataToAg() {
   stateMachine.displayHandle(AgStateMachineWiFiOkServerConnecting);
 
   delay(1500);
-  if (apiClient.sendPing(wifiConnector.RSSI(), measurements.bootCount)) {
+  if (apiClient.sendPing(wifiConnector.RSSI(), measurements.bootCount())) {
     stateMachine.displayHandle(AgStateMachineWiFiOkServerConnected);
   } else {
     stateMachine.displayHandle(AgStateMachineWiFiOkServerConnectFailed);
@@ -507,6 +511,14 @@ static void failedHandler(String msg) {
 }
 
 static void configurationUpdateSchedule(void) {
+  if (configuration.isOfflineMode() ||
+      configuration.getConfigurationControl() == ConfigurationControl::ConfigurationControlLocal) {
+    Serial.println("Ignore fetch server configuration. Either mode is offline "
+                   "or configurationControl set to local");
+    apiClient.resetFetchConfigurationStatus();
+    return;
+  }
+
   if (apiClient.fetchServerConfiguration()) {
     configUpdateHandle();
   }
@@ -564,7 +576,7 @@ static void appDispHandler(void) {
   if (configuration.isOfflineMode() == false) {
     if (wifiConnector.isConnected() == false) {
       state = AgStateMachineWiFiLost;
-    } else if (apiClient.isFetchConfigureFailed()) {
+    } else if (apiClient.isFetchConfigurationFailed()) {
       state = AgStateMachineSensorConfigFailed;
       if (apiClient.isNotAvailableOnDashboard()) {
         stateMachine.displaySetAddToDashBoard();
@@ -611,19 +623,24 @@ static void updatePm(void) {
 
 static void sendDataToServer(void) {
   /** Increment bootcount when send measurements data is scheduled */
-  measurements.bootCount++;
+  int bootCount = measurements.bootCount() + 1;
+  measurements.setBootCount(bootCount);
 
-  /** Ignore send data to server if postToAirGradient disabled */
+  if (configuration.isOfflineMode() || !configuration.isPostDataToAirGradient()) {
-  if (configuration.isPostDataToAirGradient() == false ||
+    Serial.println("Skipping transmission of data to AG server. Either mode is offline "
-      configuration.isOfflineMode()) {
+                   "or post data to server disabled");
     return;
   }
 
-  String syncData = measurements.toString(false, fwMode, wifiConnector.RSSI(), ag, configuration);
+  if (wifiConnector.isConnected() == false) {
+    Serial.println("WiFi not connected, skipping data transmission to AG server");
+    return;
+  }
+
+  String syncData = measurements.toString(false, fwMode, wifiConnector.RSSI());
   if (apiClient.postToServer(syncData)) {
     Serial.println();
-    Serial.println(
+    Serial.println("Online mode and isPostToAirGradient = true");
-        "Online mode and isPostToAirGradient = true: watchdog reset");
     Serial.println();
   }
 }

examples/DiyProIndoorV4_2/LocalServer.cpp

@@ -53,7 +53,7 @@ void LocalServer::_GET_metrics(void) {
 }
 
 void LocalServer::_GET_measure(void) {
-  String toSend = measure.toString(true, fwMode, wifiConnector.RSSI(), *ag, config);
+  String toSend = measure.toString(true, fwMode, wifiConnector.RSSI());
   server.send(200, "application/json", toSend);
 }
 

examples/DiyProIndoorV4_2/OpenMetrics.cpp

@@ -43,7 +43,7 @@ String OpenMetrics::getPayload(void) {
              "1 if the AirGradient device was able to successfully fetch its "
              "configuration from the server",
              "gauge");
-  add_metric_point("", apiClient.isFetchConfigureFailed() ? "0" : "1");
+  add_metric_point("", apiClient.isFetchConfigurationFailed() ? "0" : "1");
 
   add_metric(
       "post_ok",
@@ -57,46 +57,45 @@ String OpenMetrics::getPayload(void) {
       "gauge", "dbm");
   add_metric_point("", String(wifiConnector.RSSI()));
 
-  if (config.hasSensorS8 && measure.CO2 >= 0) {
+  // Initialize default invalid value for each measurements
-    add_metric("co2",
-               "Carbon dioxide concentration as measured by the AirGradient S8 "
-               "sensor, in parts per million",
-               "gauge", "ppm");
-    add_metric_point("", String(measure.CO2));
-  }
-
   float _temp = utils::getInvalidTemperature();
   float _hum = utils::getInvalidHumidity();
   int pm01 = utils::getInvalidPmValue();
   int pm25 = utils::getInvalidPmValue();
   int pm10 = utils::getInvalidPmValue();
   int pm03PCount = utils::getInvalidPmValue();
+  int co2 = utils::getInvalidCO2();
   int atmpCompensated = utils::getInvalidTemperature();
-  int ahumCompensated = utils::getInvalidHumidity();
+  int rhumCompensated = utils::getInvalidHumidity();
   int tvoc = utils::getInvalidVOC();
-  int tvoc_raw = utils::getInvalidVOC();
+  int tvocRaw = utils::getInvalidVOC();
   int nox = utils::getInvalidNOx();
-  int nox_raw = utils::getInvalidNOx();
+  int noxRaw = utils::getInvalidNOx();
 
   if (config.hasSensorSHT) {
     _temp = measure.getFloat(Measurements::Temperature);
     _hum = measure.getFloat(Measurements::Humidity);
     atmpCompensated = _temp;
-    ahumCompensated = _hum;
+    rhumCompensated = _hum;
   }
 
   if (config.hasSensorPMS1) {
     pm01 = measure.get(Measurements::PM01);
-    pm25 = measure.get(Measurements::PM25);
+    float correctedPm = measure.getCorrectedPM25(false, 1);
+    pm25 = round(correctedPm);
     pm10 = measure.get(Measurements::PM10);
     pm03PCount = measure.get(Measurements::PM03_PC);
   }
 
   if (config.hasSensorSGP) {
     tvoc = measure.get(Measurements::TVOC);
-    tvoc_raw = measure.get(Measurements::TVOCRaw);
+    tvocRaw = measure.get(Measurements::TVOCRaw);
     nox = measure.get(Measurements::NOx);
-    nox_raw = measure.get(Measurements::NOxRaw);
+    noxRaw = measure.get(Measurements::NOxRaw);
+  }
+
+  if (config.hasSensorS8) {
+    co2 = measure.get(Measurements::CO2);
   }
 
   if (config.hasSensorPMS1) {
@@ -138,12 +137,12 @@ String OpenMetrics::getPayload(void) {
                  "gauge");
       add_metric_point("", String(tvoc));
     }
-    if (utils::isValidVOC(tvoc_raw)) {
+    if (utils::isValidVOC(tvocRaw)) {
       add_metric("tvoc_raw",
                  "The raw input value to the Total Volatile Organic Compounds "
                  "(TVOC) index as measured by the AirGradient SGP sensor",
                  "gauge");
-      add_metric_point("", String(tvoc_raw));
+      add_metric_point("", String(tvocRaw));
     }
     if (utils::isValidNOx(nox)) {
       add_metric("nox_index",
@@ -152,15 +151,23 @@ String OpenMetrics::getPayload(void) {
                  "gauge");
       add_metric_point("", String(nox));
     }
-    if (utils::isValidNOx(nox_raw)) {
+    if (utils::isValidNOx(noxRaw)) {
       add_metric("nox_raw",
                  "The raw input value to the Nitrous Oxide (NOx) index as "
                  "measured by the AirGradient SGP sensor",
                  "gauge");
-      add_metric_point("", String(nox_raw));
+      add_metric_point("", String(noxRaw));
     }
   }
 
+  if (utils::isValidCO2(co2)) {
+    add_metric("co2",
+               "Carbon dioxide concentration as measured by the AirGradient S8 "
+               "sensor, in parts per million",
+               "gauge", "ppm");
+    add_metric_point("", String(co2));
+  }
+
   if (utils::isValidTemperature(_temp)) {
     add_metric(
         "temperature",
@@ -184,12 +191,12 @@ String OpenMetrics::getPayload(void) {
         "gauge", "percent");
     add_metric_point("", String(_hum));
   }
-  if (utils::isValidHumidity(ahumCompensated)) {
+  if (utils::isValidHumidity(rhumCompensated)) {
     add_metric("humidity_compensated",
                "The compensated relative humidity as measured by the "
                "AirGradient SHT / PMS sensor",
                "gauge", "percent");
-    add_metric_point("", String(ahumCompensated));
+    add_metric_point("", String(rhumCompensated));
   }
 
   response += "# EOF\n";

examples/OneOpenAir/LocalServer.cpp

@@ -64,7 +64,7 @@ void LocalServer::_GET_metrics(void) {
 }
 
 void LocalServer::_GET_measure(void) {
-  String toSend = measure.toString(true, fwMode, wifiConnector.RSSI(), *ag, config);
+  String toSend = measure.toString(true, fwMode, wifiConnector.RSSI());
   server.send(200, "application/json", toSend);
 }
 

examples/OneOpenAir/OneOpenAir.ino

@@ -36,20 +36,21 @@ CC BY-SA 4.0 Attribution-ShareAlike 4.0 International License
 
 */
 
-#include <HardwareSerial.h>
-#include "AirGradient.h"
-#include "OtaHandler.h"
 #include "AgApiClient.h"
 #include "AgConfigure.h"
 #include "AgSchedule.h"
 #include "AgStateMachine.h"
 #include "AgWiFiConnector.h"
+#include "AirGradient.h"
 #include "EEPROM.h"
 #include "ESPmDNS.h"
 #include "LocalServer.h"
 #include "MqttClient.h"
 #include "OpenMetrics.h"
+#include "OtaHandler.h"
 #include "WebServer.h"
+#include "esp32c3/rom/rtc.h"
+#include <HardwareSerial.h>
 #include <WebServer.h>
 #include <WiFi.h>
 
@@ -75,7 +76,7 @@ static MqttClient mqttClient(Serial);
 static TaskHandle_t mqttTask = NULL;
 static Configuration configuration(Serial);
 static AgApiClient apiClient(Serial, configuration);
-static Measurements measurements;
+static Measurements measurements(configuration);
 static AirGradient *ag;
 static OledDisplay oledDisplay(configuration, measurements, Serial);
 static StateMachine stateMachine(oledDisplay, Serial, measurements,
@@ -95,6 +96,7 @@ static bool ledBarButtonTest = false;
 static String fwNewVersion;
 
 static void boardInit(void);
+static void initializeNetwork(void);
 static void failedHandler(String msg);
 static void configurationUpdateSchedule(void);
 static void updateDisplayAndLedBar(void);
@@ -110,10 +112,9 @@ static void factoryConfigReset(void);
 static void wdgFeedUpdate(void);
 static void ledBarEnabledUpdate(void);
 static bool sgp41Init(void);
-static void firmwareCheckForUpdate(void);
+static void checkForFirmwareUpdate(void);
-static void otaHandlerCallback(OtaState state, String mesasge);
+static void otaHandlerCallback(OtaHandler::OtaState state, String mesasge);
-static void displayExecuteOta(OtaState state, String msg,
+static void displayExecuteOta(OtaHandler::OtaState state, String msg, int processing);
-                              int processing);
 static int calculateMaxPeriod(int updateInterval);
 static void setMeasurementMaxPeriod();
 
@@ -126,7 +127,7 @@ AgSchedule pmsSchedule(SENSOR_PM_UPDATE_INTERVAL, updatePm);
 AgSchedule tempHumSchedule(SENSOR_TEMP_HUM_UPDATE_INTERVAL, tempHumUpdate);
 AgSchedule tvocSchedule(SENSOR_TVOC_UPDATE_INTERVAL, updateTvoc);
 AgSchedule watchdogFeedSchedule(60000, wdgFeedUpdate);
-AgSchedule checkForUpdateSchedule(FIRMWARE_CHECK_FOR_UPDATE_MS, firmwareCheckForUpdate);
+AgSchedule checkForUpdateSchedule(FIRMWARE_CHECK_FOR_UPDATE_MS, checkForFirmwareUpdate);
 
 void setup() {
   /** Serial for print debug message */
@@ -136,6 +137,10 @@ void setup() {
   /** Print device ID into log */
   Serial.println("Serial nr: " + ag->deviceId());
 
+  // Set reason why esp is reset
+  esp_reset_reason_t reason = esp_reset_reason();
+  measurements.setResetReason(reason);
+
   /** Initialize local configure */
   configuration.begin();
 
@@ -160,6 +165,7 @@ void setup() {
   apiClient.setAirGradient(ag);
   openMetrics.setAirGradient(ag);
   localServer.setAirGraident(ag);
+  measurements.setAirGradient(ag);
 
   /** Example set custom API root URL */
   // apiClient.setApiRoot("https://example.custom.api");
@@ -204,51 +210,11 @@ void setup() {
     connectToWifi = true;
   }
 
+  // Initialize networking configuration
   if (connectToWifi) {
-    apiClient.begin();
+    initializeNetwork();
+  }
 
-    if (wifiConnector.connect()) {
-      if (wifiConnector.isConnected()) {
-        mdnsInit();
-        localServer.begin();
-        initMqtt();
-        sendDataToAg();
-
-        #ifdef ESP8266
-          // ota not supported
-        #else
-          firmwareCheckForUpdate();
-          checkForUpdateSchedule.update();
-        #endif
-
-        apiClient.fetchServerConfiguration();
-        configSchedule.update();
-        if (apiClient.isFetchConfigureFailed()) {
-          if (ag->isOne()) {
-            if (apiClient.isNotAvailableOnDashboard()) {
-              stateMachine.displaySetAddToDashBoard();
-              stateMachine.displayHandle(
-                  AgStateMachineWiFiOkServerOkSensorConfigFailed);
-            } else {
-              stateMachine.displayClearAddToDashBoard();
-            }
-          }
-          stateMachine.handleLeds(
-              AgStateMachineWiFiOkServerOkSensorConfigFailed);
-          delay(DISPLAY_DELAY_SHOW_CONTENT_MS);
-        } else {
-          ledBarEnabledUpdate();
-        }
-      } else {
-        if (wifiConnector.isConfigurePorttalTimeout()) {
-          oledDisplay.showRebooting();
-          delay(2500);
-          oledDisplay.setText("", "", "");
-          ESP.restart();
-        }
-      }
-    }
-  }
   /** Set offline mode without saving, cause wifi is not configured */
   if (wifiConnector.hasConfigurated() == false) {
     Serial.println("Set offline mode cause wifi is not configurated");
@@ -264,15 +230,16 @@ void setup() {
     oledDisplay.setBrightness(configuration.getDisplayBrightness());
   }
 
-  // Update display and led bar after finishing setup to show dashboard
+  // Reset post schedulers to make sure measurements value already available
-  updateDisplayAndLedBar();
+  agApiPostSchedule.update();
 }
 
 void loop() {
-  /** Handle schedule */
+  /** Run schedulers */
   dispLedSchedule.run();
   configSchedule.run();
   agApiPostSchedule.run();
+  watchdogFeedSchedule.run();
 
   if (configuration.hasSensorS8) {
     co2Schedule.run();
@@ -306,15 +273,13 @@ void loop() {
     }
   }
 
-  watchdogFeedSchedule.run();
-
   /** Check for handle WiFi reconnect */
   wifiConnector.handle();
 
   /** factory reset handle */
   factoryConfigReset();
 
-  /** check that local configura changed then do some action */
+  /** check that local configuration changed then do some action */
   configUpdateHandle();
 
   /** Firmware check for update handle */
@@ -364,8 +329,7 @@ static void createMqttTask(void) {
 
           /** Send data */
           if (mqttClient.isConnected()) {
-            String payload =
+            String payload = measurements.toString(true, fwMode, wifiConnector.RSSI());
-                measurements.toString(true, fwMode, wifiConnector.RSSI(), *ag, configuration);
             String topic = "airgradient/readings/" + ag->deviceId();
 
             if (mqttClient.publish(topic.c_str(), payload.c_str(),
@@ -500,43 +464,47 @@ static bool sgp41Init(void) {
   return false;
 }
 
-static void firmwareCheckForUpdate(void) {
+static void checkForFirmwareUpdate(void) {
   Serial.println();
-  Serial.println("firmwareCheckForUpdate:");
+  Serial.print("checkForFirmwareUpdate: ");
 
-  if (wifiConnector.isConnected()) {
+  if (configuration.isOfflineMode() || configuration.isCloudConnectionDisabled()) {
-    Serial.println("firmwareCheckForUpdate: Perform");
+    Serial.println("mode is offline or cloud connection disabled, ignored");
+    return;
+  }
+  
+  if (!wifiConnector.isConnected()) {
+    Serial.println("wifi not connected, ignored");
+    return;
+  }
+
+  Serial.println("perform");
   otaHandler.setHandlerCallback(otaHandlerCallback);
   otaHandler.updateFirmwareIfOutdated(ag->deviceId());
-  } else {
-    Serial.println("firmwareCheckForUpdate: Ignored");
-  }
   Serial.println();
 }
 
-static void otaHandlerCallback(OtaState state, String mesasge) {
+static void otaHandlerCallback(OtaHandler::OtaState state, String message) {
-  Serial.println("OTA message: " + mesasge);
+  Serial.println("OTA message: " + message);
   switch (state) {
-  case OtaState::OTA_STATE_BEGIN:
+  case OtaHandler::OTA_STATE_BEGIN:
     displayExecuteOta(state, fwNewVersion, 0);
     break;
-  case OtaState::OTA_STATE_FAIL:
+  case OtaHandler::OTA_STATE_FAIL:
     displayExecuteOta(state, "", 0);
     break;
-  case OtaState::OTA_STATE_PROCESSING:
+  case OtaHandler::OTA_STATE_PROCESSING:
-    displayExecuteOta(state, "", mesasge.toInt());
+  case OtaHandler::OTA_STATE_SUCCESS:
-    break;
+    displayExecuteOta(state, "", message.toInt());
-  case OtaState::OTA_STATE_SUCCESS:
-    displayExecuteOta(state, "", mesasge.toInt());
     break;
   default:
     break;
   }
 }
 
-static void displayExecuteOta(OtaState state, String msg, int processing) {
+static void displayExecuteOta(OtaHandler::OtaState state, String msg, int processing) {
   switch (state) {
-  case OtaState::OTA_STATE_BEGIN: {
+  case OtaHandler::OTA_STATE_BEGIN: {
     if (ag->isOne()) {
       oledDisplay.showFirmwareUpdateVersion(msg);
     } else {
@@ -545,7 +513,7 @@ static void displayExecuteOta(OtaState state, String msg, int processing) {
     delay(2500);
     break;
   }
-  case OtaState::OTA_STATE_FAIL: {
+  case OtaHandler::OTA_STATE_FAIL: {
     if (ag->isOne()) {
       oledDisplay.showFirmwareUpdateFailed();
     } else {
@@ -555,7 +523,7 @@ static void displayExecuteOta(OtaState state, String msg, int processing) {
     delay(2500);
     break;
   }
-  case OtaState::OTA_STATE_SKIP: {
+  case OtaHandler::OTA_STATE_SKIP: {
     if (ag->isOne()) {
       oledDisplay.showFirmwareUpdateSkipped();
     } else {
@@ -565,7 +533,7 @@ static void displayExecuteOta(OtaState state, String msg, int processing) {
     delay(2500);
     break;
   }
-  case OtaState::OTA_STATE_UP_TO_DATE: {
+  case OtaHandler::OTA_STATE_UP_TO_DATE: {
     if (ag->isOne()) {
       oledDisplay.showFirmwareUpdateUpToDate();
     } else {
@@ -575,7 +543,7 @@ static void displayExecuteOta(OtaState state, String msg, int processing) {
     delay(2500);
     break;
   }
-  case OtaState::OTA_STATE_PROCESSING: {
+  case OtaHandler::OTA_STATE_PROCESSING: {
     if (ag->isOne()) {
       oledDisplay.showFirmwareUpdateProgress(processing);
     } else {
@@ -584,7 +552,7 @@ static void displayExecuteOta(OtaState state, String msg, int processing) {
 
     break;
   }
-  case OtaState::OTA_STATE_SUCCESS: {
+  case OtaHandler::OTA_STATE_SUCCESS: {
     int i = 6;
     while(i != 0) {
       i = i - 1;
@@ -634,7 +602,7 @@ static void sendDataToAg() {
       "task_led", 2048, NULL, 5, NULL);
 
   delay(1500);
-  if (apiClient.sendPing(wifiConnector.RSSI(), measurements.bootCount)) {
+  if (apiClient.sendPing(wifiConnector.RSSI(), measurements.bootCount())) {
     if (ag->isOne()) {
       stateMachine.displayHandle(AgStateMachineWiFiOkServerConnected);
     }
@@ -645,7 +613,7 @@ static void sendDataToAg() {
     }
     stateMachine.handleLeds(AgStateMachineWiFiOkServerConnectFailed);
   }
-  delay(DISPLAY_DELAY_SHOW_CONTENT_MS);
+
   stateMachine.handleLeds(AgStateMachineNormal);
 }
 
@@ -869,7 +837,82 @@ static void failedHandler(String msg) {
   }
 }
 
+void initializeNetwork() {
+  if (!wifiConnector.connect()) {
+    Serial.println("Cannot initiate wifi connection");
+    return;
+  }
+
+  if (!wifiConnector.isConnected()) {
+    Serial.println("Failed connect to WiFi");
+    if (wifiConnector.isConfigurePorttalTimeout()) {
+      oledDisplay.showRebooting();
+      delay(2500);
+      oledDisplay.setText("", "", "");
+      ESP.restart();
+    }
+
+    // Directly return because the rest of the function applied if wifi is connect only
+    return;
+  }
+
+  // Initiate local network configuration
+  mdnsInit();
+  localServer.begin();
+  // Apply mqtt connection if configured
+  initMqtt();
+
+  // Ignore the rest if cloud connection to AirGradient is disabled
+  if (configuration.isCloudConnectionDisabled()) {
+    return;
+  }
+
+  // Initialize api client
+  apiClient.begin();
+
+  // Send data for the first time to AG server at boot 
+  sendDataToAg();
+
+// OTA check
+#ifdef ESP8266
+// ota not supported
+#else
+  checkForFirmwareUpdate();
+  checkForUpdateSchedule.update();
+#endif
+
+  apiClient.fetchServerConfiguration();
+  configSchedule.update();
+  if (apiClient.isFetchConfigurationFailed()) {
+    if (ag->isOne()) {
+      if (apiClient.isNotAvailableOnDashboard()) {
+        stateMachine.displaySetAddToDashBoard();
+        stateMachine.displayHandle(AgStateMachineWiFiOkServerOkSensorConfigFailed);
+      } else {
+        stateMachine.displayClearAddToDashBoard();
+      }
+    }
+    stateMachine.handleLeds(AgStateMachineWiFiOkServerOkSensorConfigFailed);
+    delay(DISPLAY_DELAY_SHOW_CONTENT_MS);
+  } else {
+    ledBarEnabledUpdate();
+  }
+}
+
 static void configurationUpdateSchedule(void) {
+  if (configuration.isOfflineMode() || configuration.isCloudConnectionDisabled() ||
+      configuration.getConfigurationControl() == ConfigurationControl::ConfigurationControlLocal) {
+    Serial.println("Ignore fetch server configuration. Either mode is offline or cloud connection "
+                   "disabled or configurationControl set to local");
+    apiClient.resetFetchConfigurationStatus();
+    return;
+  }
+
+  if (wifiConnector.isConnected() == false) {
+    Serial.println(" WiFi not connected, skipping fetch configuration from AG server");
+    return;
+  }
+
   if (apiClient.fetchServerConfiguration()) {
     configUpdateHandle();
   }
@@ -967,10 +1010,21 @@ static void updateDisplayAndLedBar(void) {
     return;
   }
 
-  AgStateMachineState state = AgStateMachineNormal;
   if (wifiConnector.isConnected() == false) {
-    state = AgStateMachineWiFiLost;
+    stateMachine.displayHandle(AgStateMachineWiFiLost);
-  } else if (apiClient.isFetchConfigureFailed()) {
+    stateMachine.handleLeds(AgStateMachineWiFiLost);
+    return;
+  }
+
+  if (configuration.isCloudConnectionDisabled()) {
+    // Ignore API related check since cloud is disabled 
+    stateMachine.displayHandle(AgStateMachineNormal);
+    stateMachine.handleLeds(AgStateMachineNormal);
+    return;
+  }
+
+  AgStateMachineState state = AgStateMachineNormal;
+  if (apiClient.isFetchConfigurationFailed()) {
     state = AgStateMachineSensorConfigFailed;
     if (apiClient.isNotAvailableOnDashboard()) {
       stateMachine.displaySetAddToDashBoard();
@@ -1135,20 +1189,30 @@ static void updatePm(void) {
 
 static void sendDataToServer(void) {
   /** Increment bootcount when send measurements data is scheduled */
-  measurements.bootCount++;
+  int bootCount = measurements.bootCount() + 1;
+  measurements.setBootCount(bootCount);
 
-  /** Ignore send data to server if postToAirGradient disabled */
+  if (configuration.isOfflineMode() || configuration.isCloudConnectionDisabled() ||
-  if (configuration.isPostDataToAirGradient() == false || configuration.isOfflineMode()) {
+      !configuration.isPostDataToAirGradient()) {
+    Serial.println("Skipping transmission of data to AG server. Either mode is offline or cloud connection is "
+                   "disabled or post data to server disabled");
     return;
   }
 
-  String syncData = measurements.toString(false, fwMode, wifiConnector.RSSI(), *ag, configuration);
+  if (wifiConnector.isConnected() == false) {
+    Serial.println("WiFi not connected, skipping data transmission to AG server");
+    return;
+  }
+
+  String syncData = measurements.toString(false, fwMode, wifiConnector.RSSI());
   if (apiClient.postToServer(syncData)) {
     Serial.println();
-    Serial.println(
+    Serial.println("Online mode and isPostToAirGradient = true");
-        "Online mode and isPostToAirGradient = true: watchdog reset");
     Serial.println();
   }
+
+  /** Log current free heap size */
+  Serial.printf("Free heap: %u\n", ESP.getFreeHeap());
 }
 
 static void tempHumUpdate(void) {

examples/OneOpenAir/OpenMetrics.cpp

@@ -43,7 +43,7 @@ String OpenMetrics::getPayload(void) {
              "1 if the AirGradient device was able to successfully fetch its "
              "configuration from the server",
              "gauge");
-  add_metric_point("", apiClient.isFetchConfigureFailed() ? "0" : "1");
+  add_metric_point("", apiClient.isFetchConfigurationFailed() ? "0" : "1");
 
   add_metric(
       "post_ok",
@@ -57,22 +57,22 @@ String OpenMetrics::getPayload(void) {
       "gauge", "dbm");
   add_metric_point("", String(wifiConnector.RSSI()));
 
-  if (config.hasSensorS8 && measure.CO2 >= 0) {
+  // Initialize default invalid value for each measurements
-    add_metric("co2",
-               "Carbon dioxide concentration as measured by the AirGradient S8 "
-               "sensor, in parts per million",
-               "gauge", "ppm");
-    add_metric_point("", String(measure.CO2));
-  }
-
   float _temp = utils::getInvalidTemperature();
   float _hum = utils::getInvalidHumidity();
   int pm01 = utils::getInvalidPmValue();
   int pm25 = utils::getInvalidPmValue();
   int pm10 = utils::getInvalidPmValue();
   int pm03PCount = utils::getInvalidPmValue();
+  int co2 = utils::getInvalidCO2();
   int atmpCompensated = utils::getInvalidTemperature();
-  int ahumCompensated = utils::getInvalidHumidity();
+  int rhumCompensated = utils::getInvalidHumidity();
+  int tvoc = utils::getInvalidVOC();
+  int tvocRaw = utils::getInvalidVOC();
+  int nox = utils::getInvalidNOx();
+  int noxRaw = utils::getInvalidNOx();
+
+  // Get values
   if (config.hasSensorPMS1 && config.hasSensorPMS2) {
     _temp = (measure.getFloat(Measurements::Temperature, 1) +
              measure.getFloat(Measurements::Temperature, 2)) /
@@ -81,7 +81,10 @@ String OpenMetrics::getPayload(void) {
             measure.getFloat(Measurements::Humidity, 2)) /
            2.0f;
     pm01 = (measure.get(Measurements::PM01, 1) + measure.get(Measurements::PM01, 2)) / 2.0f;
-    pm25 = (measure.get(Measurements::PM25, 1) + measure.get(Measurements::PM25, 2)) / 2.0f;
+    float correctedPm25_1 = measure.getCorrectedPM25(false, 1);
+    float correctedPm25_2 = measure.getCorrectedPM25(false, 2);
+    float correctedPm25 = (correctedPm25_1 + correctedPm25_2) / 2.0f;
+    pm25 = round(correctedPm25);
     pm10 = (measure.get(Measurements::PM10, 1) + measure.get(Measurements::PM10, 2)) / 2.0f;
     pm03PCount =
         (measure.get(Measurements::PM03_PC, 1) + measure.get(Measurements::PM03_PC, 2)) / 2.0f;
@@ -94,7 +97,8 @@ String OpenMetrics::getPayload(void) {
 
       if (config.hasSensorPMS1) {
         pm01 = measure.get(Measurements::PM01);
-        pm25 = measure.get(Measurements::PM25);
+        float correctedPm = measure.getCorrectedPM25(false, 1);
+        pm25 = round(correctedPm);
         pm10 = measure.get(Measurements::PM10);
         pm03PCount = measure.get(Measurements::PM03_PC);
       }
@@ -103,7 +107,8 @@ String OpenMetrics::getPayload(void) {
         _temp = measure.getFloat(Measurements::Temperature, 1);
         _hum = measure.getFloat(Measurements::Humidity, 1);
         pm01 = measure.get(Measurements::PM01, 1);
-        pm25 = measure.get(Measurements::PM25, 1);
+        float correctedPm = measure.getCorrectedPM25(false, 1);
+        pm25 = round(correctedPm);
         pm10 = measure.get(Measurements::PM10, 1);
         pm03PCount = measure.get(Measurements::PM03_PC, 1);
       }
@@ -111,22 +116,39 @@ String OpenMetrics::getPayload(void) {
         _temp = measure.getFloat(Measurements::Temperature, 2);
         _hum = measure.getFloat(Measurements::Humidity, 2);
         pm01 = measure.get(Measurements::PM01, 2);
-        pm25 = measure.get(Measurements::PM25, 2);
+        float correctedPm = measure.getCorrectedPM25(false, 2);
+        pm25 = round(correctedPm);
         pm10 = measure.get(Measurements::PM10, 2);
         pm03PCount = measure.get(Measurements::PM03_PC, 2);
       }
     }
   }
 
-  /** Get temperature and humidity compensated */
+  if (config.hasSensorSGP) {
-  if (ag->isOne()) {
+    tvoc = measure.get(Measurements::TVOC);
-    atmpCompensated = _temp;
+    tvocRaw = measure.get(Measurements::TVOCRaw);
-    ahumCompensated = _hum;
+    nox = measure.get(Measurements::NOx);
-  } else {
+    noxRaw = measure.get(Measurements::NOxRaw);
-    atmpCompensated = ag->pms5003t_1.compensateTemp(_temp);
-    ahumCompensated = ag->pms5003t_1.compensateHum(_hum);
   }
 
+  if (config.hasSensorS8) {
+    co2 = measure.get(Measurements::CO2);
+  }
+
+  /** Get temperature and humidity compensated */
+  if (ag->isOne()) {
+    atmpCompensated = round(measure.getCorrectedTempHum(Measurements::Temperature));
+    rhumCompensated = round(measure.getCorrectedTempHum(Measurements::Humidity));
+  } else {
+    atmpCompensated = round((measure.getCorrectedTempHum(Measurements::Temperature, 1) +
+                             measure.getCorrectedTempHum(Measurements::Temperature, 2)) /
+                            2.0f);
+    rhumCompensated = round((measure.getCorrectedTempHum(Measurements::Humidity, 1) +
+                             measure.getCorrectedTempHum(Measurements::Humidity, 2)) /
+                            2.0f);
+  }
+
+  // Add measurements that valid to the metrics
   if (config.hasSensorPMS1 || config.hasSensorPMS2) {
     if (utils::isValidPm(pm01)) {
       add_metric("pm1",
@@ -159,36 +181,44 @@ String OpenMetrics::getPayload(void) {
   }
 
   if (config.hasSensorSGP) {
-    if (utils::isValidVOC(measure.TVOC)) {
+    if (utils::isValidVOC(tvoc)) {
       add_metric("tvoc_index",
                  "The processed Total Volatile Organic Compounds (TVOC) index "
                  "as measured by the AirGradient SGP sensor",
                  "gauge");
-      add_metric_point("", String(measure.TVOC));
+      add_metric_point("", String(tvoc));
     }
-    if (utils::isValidVOC(measure.TVOCRaw)) {
+    if (utils::isValidVOC(tvocRaw)) {
       add_metric("tvoc_raw",
                  "The raw input value to the Total Volatile Organic Compounds "
                  "(TVOC) index as measured by the AirGradient SGP sensor",
                  "gauge");
-      add_metric_point("", String(measure.TVOCRaw));
+      add_metric_point("", String(tvocRaw));
     }
-    if (utils::isValidNOx(measure.NOx)) {
+    if (utils::isValidNOx(nox)) {
       add_metric("nox_index",
                  "The processed Nitrous Oxide (NOx) index as measured by the "
                  "AirGradient SGP sensor",
                  "gauge");
-      add_metric_point("", String(measure.NOx));
+      add_metric_point("", String(nox));
     }
-    if (utils::isValidNOx(measure.NOxRaw)) {
+    if (utils::isValidNOx(noxRaw)) {
       add_metric("nox_raw",
                  "The raw input value to the Nitrous Oxide (NOx) index as "
                  "measured by the AirGradient SGP sensor",
                  "gauge");
-      add_metric_point("", String(measure.NOxRaw));
+      add_metric_point("", String(noxRaw));
     }
   }
 
+  if (utils::isValidCO2(co2)) {
+    add_metric("co2",
+               "Carbon dioxide concentration as measured by the AirGradient S8 "
+               "sensor, in parts per million",
+               "gauge", "ppm");
+    add_metric_point("", String(co2));
+  }
+
   if (utils::isValidTemperature(_temp)) {
     add_metric("temperature",
                "The ambient temperature as measured by the AirGradient SHT / PMS "
@@ -197,26 +227,22 @@ String OpenMetrics::getPayload(void) {
     add_metric_point("", String(_temp));
   }
   if (utils::isValidTemperature(atmpCompensated)) {
-    add_metric(
+    add_metric("temperature_compensated",
-        "temperature_compensated",
                "The compensated ambient temperature as measured by the AirGradient SHT / PMS "
                "sensor, in degrees Celsius",
                "gauge", "celsius");
     add_metric_point("", String(atmpCompensated));
   }
   if (utils::isValidHumidity(_hum)) {
-    add_metric(
+    add_metric("humidity", "The relative humidity as measured by the AirGradient SHT sensor",
-        "humidity",
-        "The relative humidity as measured by the AirGradient SHT sensor",
                "gauge", "percent");
     add_metric_point("", String(_hum));
   }
-  if (utils::isValidHumidity(ahumCompensated)) {
+  if (utils::isValidHumidity(rhumCompensated)) {
-    add_metric(
+    add_metric("humidity_compensated",
-        "humidity_compensated",
                "The compensated relative humidity as measured by the AirGradient SHT / PMS sensor",
                "gauge", "percent");
-    add_metric_point("", String(ahumCompensated));
+    add_metric_point("", String(rhumCompensated));
   }
 
   response += "# EOF\n";

examples/OneOpenAir/OtaHandler.h

@@ -1,206 +0,0 @@
-#ifndef _OTA_HANDLER_H_
-#define _OTA_HANDLER_H_
-#include <Arduino.h>
-#include <esp_err.h>
-#include <esp_http_client.h>
-#include <esp_ota_ops.h>
-
-#define OTA_BUF_SIZE 1024
-#define URL_BUF_SIZE 256
-
-enum OtaUpdateOutcome {
-  UPDATE_PERFORMED,
-  ALREADY_UP_TO_DATE,
-  UPDATE_FAILED,
-  UDPATE_SKIPPED
-};
-
-enum OtaState {
-  OTA_STATE_BEGIN,
-  OTA_STATE_FAIL,
-  OTA_STATE_SKIP,
-  OTA_STATE_UP_TO_DATE,
-  OTA_STATE_PROCESSING,
-  OTA_STATE_SUCCESS
-};
-
-typedef void(*OtaHandlerCallback_t)(OtaState state,
-                                   String message);
-
-class OtaHandler {
-public:
-  void updateFirmwareIfOutdated(String deviceId) {
-    String url = "http://hw.airgradient.com/sensors/airgradient:" + deviceId +
-                 "/generic/os/firmware.bin";
-    url += "?current_firmware=";
-    url += GIT_VERSION;
-    char urlAsChar[URL_BUF_SIZE];
-    url.toCharArray(urlAsChar, URL_BUF_SIZE);
-    Serial.printf("checking for new OTA update @ %s\n", urlAsChar);
-
-    esp_http_client_config_t config = {};
-    config.url = urlAsChar;
-    OtaUpdateOutcome ret = attemptToPerformOta(&config);
-    Serial.println(ret);
-    if (this->callback) {
-      switch (ret) {
-      case OtaUpdateOutcome::UPDATE_PERFORMED:
-        this->callback(OtaState::OTA_STATE_SUCCESS, "");
-        break;
-      case OtaUpdateOutcome::UDPATE_SKIPPED:
-        this->callback(OtaState::OTA_STATE_SKIP, "");
-        break;
-      case OtaUpdateOutcome::ALREADY_UP_TO_DATE:
-        this->callback(OtaState::OTA_STATE_UP_TO_DATE, "");
-        break;
-      case OtaUpdateOutcome::UPDATE_FAILED:
-        this->callback(OtaState::OTA_STATE_FAIL, "");
-        break;
-      default:
-        break;
-      }
-    }
-  }
-
-  void setHandlerCallback(OtaHandlerCallback_t callback) {
-    this->callback = callback;
-  }
-
-private:
-  OtaHandlerCallback_t callback;
-
-  OtaUpdateOutcome attemptToPerformOta(const esp_http_client_config_t *config) {
-    esp_http_client_handle_t client = esp_http_client_init(config);
-    if (client == NULL) {
-      Serial.println("Failed to initialize HTTP connection");
-      return OtaUpdateOutcome::UPDATE_FAILED;
-    }
-
-    esp_err_t err = esp_http_client_open(client, 0);
-    if (err != ESP_OK) {
-      esp_http_client_cleanup(client);
-      Serial.printf("Failed to open HTTP connection: %s\n",
-                    esp_err_to_name(err));
-      return OtaUpdateOutcome::UPDATE_FAILED;
-    }
-    esp_http_client_fetch_headers(client);
-
-    int httpStatusCode = esp_http_client_get_status_code(client);
-    if (httpStatusCode == 304) {
-      Serial.println("Firmware is already up to date");
-      cleanupHttp(client);
-      return OtaUpdateOutcome::ALREADY_UP_TO_DATE;
-    } else if (httpStatusCode != 200) {
-      Serial.printf("Firmware update skipped, the server returned %d\n",
-                    httpStatusCode);
-      cleanupHttp(client);
-      return OtaUpdateOutcome::UDPATE_SKIPPED;
-    }
-
-    esp_ota_handle_t update_handle = 0;
-    const esp_partition_t *update_partition = NULL;
-    Serial.println("Starting OTA update ...");
-    update_partition = esp_ota_get_next_update_partition(NULL);
-    if (update_partition == NULL) {
-      Serial.println("Passive OTA partition not found");
-      cleanupHttp(client);
-      return OtaUpdateOutcome::UPDATE_FAILED;
-    }
-    Serial.printf("Writing to partition subtype %d at offset 0x%x\n",
-                  update_partition->subtype, update_partition->address);
-
-    err = esp_ota_begin(update_partition, OTA_SIZE_UNKNOWN, &update_handle);
-    if (err != ESP_OK) {
-      Serial.printf("esp_ota_begin failed, error=%d\n", err);
-      cleanupHttp(client);
-      return OtaUpdateOutcome::UPDATE_FAILED;
-    }
-
-    esp_err_t ota_write_err = ESP_OK;
-    char *upgrade_data_buf = (char *)malloc(OTA_BUF_SIZE);
-    if (!upgrade_data_buf) {
-      Serial.println("Couldn't allocate memory for data buffer");
-      return OtaUpdateOutcome::UPDATE_FAILED;
-    }
-
-    int binary_file_len = 0;
-    int totalSize = esp_http_client_get_content_length(client);
-    Serial.println("File size: " + String(totalSize) + String(" bytes"));
-
-    // Show display start update new firmware.
-    if (this->callback) {
-      this->callback(OtaState::OTA_STATE_BEGIN, "");
-    }
-
-    // Download file and write new firmware to OTA partition
-    uint32_t lastUpdate = millis();
-    while (1) {
-      int data_read =
-          esp_http_client_read(client, upgrade_data_buf, OTA_BUF_SIZE);
-      if (data_read == 0) {
-        if (this->callback) {
-          this->callback(OtaState::OTA_STATE_PROCESSING, String(100));
-        }
-        Serial.println("Connection closed, all data received");
-        break;
-      }
-      if (data_read < 0) {
-        Serial.println("Data read error");
-        if (this->callback) {
-          this->callback(OtaState::OTA_STATE_FAIL, "");
-        }
-        break;
-      }
-      if (data_read > 0) {
-        ota_write_err = esp_ota_write(
-            update_handle, (const void *)upgrade_data_buf, data_read);
-        if (ota_write_err != ESP_OK) {
-          if (this->callback) {
-            this->callback(OtaState::OTA_STATE_FAIL, "");
-          }
-          break;
-        }
-        binary_file_len += data_read;
-
-        int percent = (binary_file_len * 100) / totalSize;
-        uint32_t ms = (uint32_t)(millis() - lastUpdate);
-        if (ms >= 250) {
-          // sm.executeOTA(StateMachine::OtaState::OTA_STATE_PROCESSING, "",
-          //               percent);
-          if (this->callback) {
-            this->callback(OtaState::OTA_STATE_PROCESSING,
-                           String(percent));
-          }
-          lastUpdate = millis();
-        }
-      }
-    }
-    free(upgrade_data_buf);
-    cleanupHttp(client);
-    Serial.printf("# of bytes written: %d\n", binary_file_len);
-
-    esp_err_t ota_end_err = esp_ota_end(update_handle);
-    if (ota_write_err != ESP_OK) {
-      Serial.printf("Error: esp_ota_write failed! err=0x%d\n", err);
-      return OtaUpdateOutcome::UPDATE_FAILED;
-    } else if (ota_end_err != ESP_OK) {
-      Serial.printf("Error: esp_ota_end failed! err=0x%d. Image is invalid",
-                    ota_end_err);
-      return OtaUpdateOutcome::UPDATE_FAILED;
-    }
-
-    err = esp_ota_set_boot_partition(update_partition);
-    if (err != ESP_OK) {
-      Serial.printf("esp_ota_set_boot_partition failed! err=0x%d\n", err);
-      return OtaUpdateOutcome::UPDATE_FAILED;
-    }
-    return OtaUpdateOutcome::UPDATE_PERFORMED;
-  }
-
-  void cleanupHttp(esp_http_client_handle_t client) {
-    esp_http_client_close(client);
-    esp_http_client_cleanup(client);
-  }
-};
-
-#endif

library.properties

@@ -1,5 +1,5 @@
 name=AirGradient Air Quality Sensor
-version=3.1.12
+version=3.2.0-alpha
 author=AirGradient <support@airgradient.com>
 maintainer=AirGradient <support@airgradient.com>
 sentence=ESP32-C3 / ESP8266 library for air quality monitor measuring PM, CO2, Temperature, TVOC and Humidity with OLED display.

src/AgApiClient.cpp

@@ -34,17 +34,6 @@ void AgApiClient::begin(void) {
  * @return false Failure
  */
 bool AgApiClient::fetchServerConfiguration(void) {
-  if (config.getConfigurationControl() ==
-          ConfigurationControl::ConfigurationControlLocal ||
-      config.isOfflineMode()) {
-    logWarning("Ignore fetch server configuration");
-
-    // Clear server configuration failed flag, cause it's ignore but not
-    // really failed
-    getConfigFailed = false;
-    return false;
-  }
-
   String uri = apiRoot + "/sensors/airgradient:" +
                ag->deviceId() + "/one/config";
 
@@ -58,11 +47,23 @@ bool AgApiClient::fetchServerConfiguration(void) {
   }
 #else
   HTTPClient client;
-  client.setTimeout(timeoutMs);
+  client.setConnectTimeout(timeoutMs); // Set timeout when establishing connection to server 
+  client.setTimeout(timeoutMs); // Timeout when waiting for response from AG server
+  if (apiRootChanged) {
+    // If apiRoot is changed, assume not using https
     if (client.begin(uri) == false) {
+      logError("Begin HTTPClient failed (GET)");
       getConfigFailed = true;
       return false;
     }
+  } else {
+    // By default, airgradient using https
+    if (client.begin(uri, AG_SERVER_ROOT_CA) == false) {
+      logError("Begin HTTPClient using tls failed (GET)");
+      getConfigFailed = true;
+      return false;
+    }
+  }
 #endif
 
   /** Get data */
@@ -90,8 +91,6 @@ bool AgApiClient::fetchServerConfiguration(void) {
   String respContent = client.getString();
   client.end();
 
-  // logInfo("Get configuration: " + respContent);
-
   /** Parse configuration and return result */
   return config.parse(respContent, false);
 }
@@ -105,32 +104,39 @@ bool AgApiClient::fetchServerConfiguration(void) {
  * @return false Failure
  */
 bool AgApiClient::postToServer(String data) {
-  if (config.isPostDataToAirGradient() == false) {
-    logWarning("Ignore post data to server");
-    return true;
-  }
-
-  if (WiFi.isConnected() == false) {
-    return false;
-  }
-
   String uri = apiRoot + "/sensors/airgradient:" + ag->deviceId() + "/measures";
-  // logInfo("Post uri: " + uri);
+#ifdef ESP8266
-  // logInfo("Post data: " + data);
-
-  WiFiClient wifiClient;
   HTTPClient client;
-  client.setTimeout(timeoutMs);
+  WiFiClient wifiClient;
-  if (client.begin(wifiClient, uri.c_str()) == false) {
+  if (client.begin(wifiClient, uri) == false) {
-    logError("Init client failed");
+    getConfigFailed = true;
     return false;
   }
+#else
+  HTTPClient client;
+  client.setConnectTimeout(timeoutMs); // Set timeout when establishing connection to server 
+  client.setTimeout(timeoutMs); // Timeout when waiting for response from AG server
+  if (apiRootChanged) {
+    // If apiRoot is changed, assume not using https
+    if (client.begin(uri) == false) {
+      logError("Begin HTTPClient failed (POST)");
+      getConfigFailed = true;
+      return false;
+    }
+  } else {
+    // By default, airgradient using https
+    if (client.begin(uri, AG_SERVER_ROOT_CA) == false) {
+      logError("Begin HTTPClient using tls failed (POST)");
+      getConfigFailed = true;
+      return false;
+    }
+  }
+#endif
   client.addHeader("content-type", "application/json");
   int retCode = client.POST(data);
   client.end();
 
   logInfo(String("POST: ") + uri);
-  // logInfo(String("DATA: ") + data);
   logInfo(String("Return code: ") + String(retCode));
 
   if ((retCode == 200) || (retCode == 429)) {
@@ -149,7 +155,12 @@ bool AgApiClient::postToServer(String data) {
  * @return true Success
  * @return false Failure
  */
-bool AgApiClient::isFetchConfigureFailed(void) { return getConfigFailed; }
+bool AgApiClient::isFetchConfigurationFailed(void) { return getConfigFailed; }
+
+/**
+ * @brief Reset status of get configuration from AirGradient cloud
+ */
+void AgApiClient::resetFetchConfigurationStatus(void) { getConfigFailed = false; }
 
 /**
  * @brief Get failed status when post data to AirGradient cloud
@@ -189,7 +200,10 @@ bool AgApiClient::sendPing(int rssi, int bootCount) {
 
 String AgApiClient::getApiRoot() const { return apiRoot; }
 
-void AgApiClient::setApiRoot(const String &apiRoot) { this->apiRoot = apiRoot; }
+void AgApiClient::setApiRoot(const String &apiRoot) {
+  this->apiRootChanged = true;
+  this->apiRoot = apiRoot;
+}
 
 /**
  * @brief Set http request timeout. (Default: 10s)

src/AgApiClient.h

@@ -20,12 +20,18 @@ class AgApiClient : public PrintLog {
 private:
   Configuration &config;
   AirGradient *ag;
+#ifdef ESP8266
+  // ESP8266 not support HTTPS
   String apiRoot = "http://hw.airgradient.com";
+#else
+  String apiRoot = "https://hw.airgradient.com";
+#endif
 
+  bool apiRootChanged = false; // Indicate if setApiRoot() is called
   bool getConfigFailed;
   bool postToServerFailed;
   bool notAvailableOnDashboard = false; // Device not setup on Airgradient cloud dashboard.
-  uint16_t timeoutMs = 10000;           // Default set to 10s
+  uint16_t timeoutMs = 15000;           // Default set to 15s
 
 public:
   AgApiClient(Stream &stream, Configuration &config);
@@ -34,7 +40,8 @@ public:
   void begin(void);
   bool fetchServerConfiguration(void);
   bool postToServer(String data);
-  bool isFetchConfigureFailed(void);
+  bool isFetchConfigurationFailed(void);
+  void resetFetchConfigurationStatus(void);
   bool isPostToServerFailed(void);
   bool isNotAvailableOnDashboard(void);
   void setAirGradient(AirGradient *ag);

src/AgConfigure.cpp

@@ -22,15 +22,17 @@ const char *LED_BAR_MODE_NAMES[] = {
 };
 
 const char *PM_CORRECTION_ALGORITHM_NAMES[] = {
-    [Unknown] = "-", // This is only to pass "non-trivial designated initializers" error
+    [COR_ALGO_PM_UNKNOWN] = "-", // This is only to pass "non-trivial designated initializers" error
-    [None] = "none",
+    [COR_ALGO_PM_NONE] = "none",
-    [EPA_2021] = "epa_2021",
+    [COR_ALGO_PM_EPA_2021] = "epa_2021",
-    [SLR_PMS5003_20220802] = "slr_PMS5003_20220802",
+    [COR_ALGO_PM_SLR_CUSTOM] = "custom",
-    [SLR_PMS5003_20220803] = "slr_PMS5003_20220803",
+};
-    [SLR_PMS5003_20220824] = "slr_PMS5003_20220824",
+
-    [SLR_PMS5003_20231030] = "slr_PMS5003_20231030",
+const char *TEMP_HUM_CORRECTION_ALGORITHM_NAMES[] = {
-    [SLR_PMS5003_20231218] = "slr_PMS5003_20231218",
+    [COR_ALGO_TEMP_HUM_UNKNOWN] = "-", // This is only to pass "non-trivial designated initializers" error
-    [SLR_PMS5003_20240104] = "slr_PMS5003_20240104",
+    [COR_ALGO_TEMP_HUM_NONE] = "none",
+    [COR_ALGO_TEMP_HUM_AG_PMS5003T_2024] = "ag_pms5003t_2024",
+    [COR_ALGO_TEMP_HUM_SLR_CUSTOM] = "custom",
 };
 
 #define JSON_PROP_NAME(name) jprop_##name
@@ -47,6 +49,7 @@ JSON_PROP_DEF(mqttBrokerUrl);
 JSON_PROP_DEF(temperatureUnit);
 JSON_PROP_DEF(configurationControl);
 JSON_PROP_DEF(postDataToAirGradient);
+JSON_PROP_DEF(disableCloudConnection);
 JSON_PROP_DEF(ledBarBrightness);
 JSON_PROP_DEF(displayBrightness);
 JSON_PROP_DEF(co2CalibrationRequested);
@@ -54,6 +57,8 @@ JSON_PROP_DEF(ledBarTestRequested);
 JSON_PROP_DEF(offlineMode);
 JSON_PROP_DEF(monitorDisplayCompensatedValues);
 JSON_PROP_DEF(corrections);
+JSON_PROP_DEF(atmp);
+JSON_PROP_DEF(rhum);
 
 #define jprop_model_default                           ""
 #define jprop_country_default                         "TH"
@@ -66,6 +71,7 @@ JSON_PROP_DEF(corrections);
 #define jprop_temperatureUnit_default                 "c"
 #define jprop_configurationControl_default            String(CONFIGURATION_CONTROL_NAME[ConfigurationControl::ConfigurationControlBoth])
 #define jprop_postDataToAirGradient_default           true
+#define jprop_disableCloudConnection_default          false
 #define jprop_ledBarBrightness_default                100
 #define jprop_displayBrightness_default               100
 #define jprop_offlineMode_default                     false
@@ -104,8 +110,8 @@ PMCorrectionAlgorithm Configuration::matchPmAlgorithm(String algorithm) {
   // If the input string matches an algorithm name, return the corresponding enum value
   // Else return Unknown
 
-  const size_t enumSize = SLR_PMS5003_20240104 + 1; // Get the actual size of the enum
+  const size_t enumSize = COR_ALGO_PM_SLR_CUSTOM + 1; // Get the actual size of the enum
-  PMCorrectionAlgorithm result = PMCorrectionAlgorithm::Unknown;
+  PMCorrectionAlgorithm result = COR_ALGO_PM_UNKNOWN;;
   
   // Loop through enum values
   for (size_t enumVal = 0; enumVal < enumSize; enumVal++) {
@@ -114,42 +120,63 @@ PMCorrectionAlgorithm Configuration::matchPmAlgorithm(String algorithm) {
     }
   }
 
+  // If string not match from enum, check if correctionAlgorithm is one of the PM batch corrections 
+  if (result == COR_ALGO_PM_UNKNOWN) {
+    // Check the substring "slr_PMS5003_xxxxxxxx"
+    if (algorithm.substring(0, 11) == "slr_PMS5003") {
+      // If it is, then its a custom correction
+      result = COR_ALGO_PM_SLR_CUSTOM;
+    }
+  }
+
+  return result;
+}
+
+TempHumCorrectionAlgorithm Configuration::matchTempHumAlgorithm(String algorithm) {
+  // Get the actual size of the enum
+  const int enumSize = static_cast<int>(COR_ALGO_TEMP_HUM_SLR_CUSTOM);
+  TempHumCorrectionAlgorithm result = COR_ALGO_TEMP_HUM_UNKNOWN;
+
+  // Loop through enum values
+  for (size_t enumVal = 0; enumVal <= enumSize; enumVal++) {
+    if (algorithm == TEMP_HUM_CORRECTION_ALGORITHM_NAMES[enumVal]) {
+      result = static_cast<TempHumCorrectionAlgorithm>(enumVal);
+    }
+  }
+
   return result;
 }
 
 bool Configuration::updatePmCorrection(JSONVar &json) {
   if (!json.hasOwnProperty("corrections")) {
-    // TODO: need to response message?
+    logInfo("corrections not found");
-    Serial.println("corrections not found");
     return false;
   }
 
   JSONVar corrections = json["corrections"];
   if (!corrections.hasOwnProperty("pm02")) {
-    Serial.println("pm02 not found");
+    logWarning("pm02 not found");
     return false;
   }
 
   JSONVar pm02 = corrections["pm02"];
   if (!pm02.hasOwnProperty("correctionAlgorithm")) {
-    Serial.println("correctionAlgorithm not found");
+    logWarning("pm02 correctionAlgorithm not found");
     return false;
   }
 
-  // TODO: Need to have data type check, with error message response if invalid 
-
   // Check algorithm
   String algorithm = pm02["correctionAlgorithm"];
   PMCorrectionAlgorithm algo = matchPmAlgorithm(algorithm);
-  if (algo == Unknown) {
+  if (algo == COR_ALGO_PM_UNKNOWN) {
-    logInfo("Unknown algorithm");
+    logWarning("Unknown algorithm");
     return false;
   }
   logInfo("Correction algorithm: " + algorithm);
 
   // If algo is None or EPA_2021, no need to check slr
   // But first check if pmCorrection different from algo
-  if (algo == None || algo == EPA_2021) {
+  if (algo == COR_ALGO_PM_NONE || algo == COR_ALGO_PM_EPA_2021) {
     if (pmCorrection.algorithm != algo) {
       // Deep copy corrections from root to jconfig, so it will be saved later
       jconfig[jprop_corrections]["pm02"]["correctionAlgorithm"] = algorithm;
@@ -166,7 +193,7 @@ bool Configuration::updatePmCorrection(JSONVar &json) {
 
   // Check if pm02 has slr object
   if (!pm02.hasOwnProperty("slr")) {
-    Serial.println("slr not found");
+    logWarning("slr not found");
     return false;
   }
 
@@ -175,7 +202,7 @@ bool Configuration::updatePmCorrection(JSONVar &json) {
   // Validate required slr properties exist
   if (!slr.hasOwnProperty("intercept") || !slr.hasOwnProperty("scalingFactor") ||
       !slr.hasOwnProperty("useEpa2021")) {
-    Serial.println("Missing required slr properties");
+    logWarning("Missing required slr properties");
     return false;
   }
 
@@ -205,6 +232,87 @@ bool Configuration::updatePmCorrection(JSONVar &json) {
   return true;
 }
 
+bool Configuration::updateTempHumCorrection(JSONVar &json, TempHumCorrection &target,
+                                            const char *correctionName) {
+  if (!json.hasOwnProperty(jprop_corrections)) {
+    return false;
+  }
+
+  JSONVar corrections = json[jprop_corrections];
+  if (!corrections.hasOwnProperty(correctionName)) {
+    logWarning(String(correctionName) + " correction field not found on configuration");
+    return false;
+  }
+
+  JSONVar correctionTarget = corrections[correctionName];
+  if (!correctionTarget.hasOwnProperty("correctionAlgorithm")) {
+    Serial.println("correctionAlgorithm not found");
+    return false;
+  }
+
+  String algorithm = correctionTarget["correctionAlgorithm"];
+  TempHumCorrectionAlgorithm algo = matchTempHumAlgorithm(algorithm);
+  if (algo == COR_ALGO_TEMP_HUM_UNKNOWN) {
+    logInfo("Uknown temp/hum algorithm");
+    return false;
+  }
+  logInfo(String(correctionName) + " correction algorithm: " + algorithm);
+
+  // If algo is None or Standard, then no need to check slr
+  // But first check if target correction different from algo
+  if (algo == COR_ALGO_TEMP_HUM_NONE || algo == COR_ALGO_TEMP_HUM_AG_PMS5003T_2024) {
+    if (target.algorithm != algo) {
+      // Deep copy corrections from root to jconfig, so it will be saved later
+      jconfig[jprop_corrections][correctionName]["correctionAlgorithm"] = algorithm;
+      jconfig[jprop_corrections][correctionName]["slr"] = JSON.parse("{}"); // Clear slr
+      // Update pmCorrection with new values
+      target.algorithm = algo;
+      target.changed = true;
+      logInfo(String(correctionName) + " correction updated");
+      return true;
+    }
+
+    return false;
+  }
+
+  // Check if correction.target (atmp or rhum) has slr object
+  if (!correctionTarget.hasOwnProperty("slr")) {
+    logWarning(String(correctionName) + " slr not found");
+    return false;
+  }
+
+  JSONVar slr = correctionTarget["slr"];
+
+  // Validate required slr properties exist
+  if (!slr.hasOwnProperty("intercept") || !slr.hasOwnProperty("scalingFactor")) {
+    Serial.println("Missing required slr properties");
+    return false;
+  }
+
+  // arduino_json doesn't support float type, need to cast to double first
+  float intercept = (float)((double)slr["intercept"]);
+  float scalingFactor = (float)((double)slr["scalingFactor"]);
+
+  // Compare with current target correciont
+  if (target.algorithm == algo && target.intercept == intercept &&
+      target.scalingFactor == scalingFactor) {
+    return false; // No changes needed
+  }
+
+  // Deep copy corrections from root to jconfig, so it will be saved later
+  jconfig[jprop_corrections] = corrections;
+
+  // Update target with new values
+  target.algorithm = algo;
+  target.intercept = intercept;
+  target.scalingFactor = scalingFactor;
+  target.changed = true;
+
+  // Correction values were updated
+  logInfo(String(correctionName) + " correction updated");
+  return true;
+}
+
 /**
  * @brief Save configure to device storage (EEPROM)
  *
@@ -272,6 +380,7 @@ void Configuration::defaultConfig(void) {
   jconfig[jprop_configurationControl] = jprop_configurationControl_default;
   jconfig[jprop_pmStandard] = jprop_pmStandard_default;
   jconfig[jprop_temperatureUnit] = jprop_temperatureUnit_default;
+  jconfig[jprop_disableCloudConnection] = jprop_disableCloudConnection_default;
   jconfig[jprop_postDataToAirGradient] = jprop_postDataToAirGradient_default;
   if (ag->isOne()) {
     jconfig[jprop_ledBarBrightness] = jprop_ledBarBrightness_default;
@@ -289,8 +398,8 @@ void Configuration::defaultConfig(void) {
   jconfig[jprop_offlineMode] = jprop_offlineMode_default;
   jconfig[jprop_monitorDisplayCompensatedValues] = jprop_monitorDisplayCompensatedValues_default;
 
-  // PM2.5 correction
+  // PM2.5 default correction
-  pmCorrection.algorithm = None;
+  pmCorrection.algorithm = COR_ALGO_PM_NONE;
   pmCorrection.changed = false;
   pmCorrection.intercept = 0;
   pmCorrection.scalingFactor = 1;
@@ -792,11 +901,21 @@ bool Configuration::parse(String data, bool isLocal) {
     }
   }
 
-  // Corrections
+  // PM2.5 Corrections
   if (updatePmCorrection(root)) {
     changed = true;
   }
 
+  // Temperature correction
+  if (updateTempHumCorrection(root, tempCorrection, jprop_atmp)) {
+    changed = true;
+  }
+
+  // Relative humidity correction
+  if (updateTempHumCorrection(root, rhumCorrection, jprop_rhum)) {
+    changed = true;
+  }
+
   if (changed) {
     updated = true;
     saveConfig();
@@ -1036,20 +1155,20 @@ void Configuration::toConfig(const char *buf) {
   }
 
   bool changed = false;
-  bool isInvalid = false;
+  bool isConfigFieldInvalid = false;
 
   /** Validate country */
   if (JSON.typeof_(jconfig[jprop_country]) != "string") {
-    isInvalid = true;
+    isConfigFieldInvalid = true;
   } else {
     String country = jconfig[jprop_country];
     if (country.length() != 2) {
-      isInvalid = true;
+      isConfigFieldInvalid = true;
     } else {
-      isInvalid = false;
+      isConfigFieldInvalid = false;
     }
   }
-  if (isInvalid) {
+  if (isConfigFieldInvalid) {
     jconfig[jprop_country] = jprop_country_default;
     changed = true;
     logInfo("toConfig: country changed");
@@ -1057,17 +1176,17 @@ void Configuration::toConfig(const char *buf) {
 
   /** validate: PM standard */
   if (JSON.typeof_(jconfig[jprop_pmStandard]) != "string") {
-    isInvalid = true;
+    isConfigFieldInvalid = true;
   } else {
     String standard = jconfig[jprop_pmStandard];
     if (standard != getPMStandardString(true) &&
         standard != getPMStandardString(false)) {
-      isInvalid = true;
+      isConfigFieldInvalid = true;
     } else {
-      isInvalid = false;
+      isConfigFieldInvalid = false;
     }
   }
-  if (isInvalid) {
+  if (isConfigFieldInvalid) {
     jconfig[jprop_pmStandard] = jprop_pmStandard_default;
     changed = true;
     logInfo("toConfig: pmStandard changed");
@@ -1075,18 +1194,18 @@ void Configuration::toConfig(const char *buf) {
 
   /** validate led bar mode */
   if (JSON.typeof_(jconfig[jprop_ledBarMode]) != "string") {
-    isInvalid = true;
+    isConfigFieldInvalid = true;
   } else {
     String mode = jconfig[jprop_ledBarMode];
     if (mode != getLedBarModeName(LedBarMode::LedBarModeCO2) &&
         mode != getLedBarModeName(LedBarMode::LedBarModeOff) &&
         mode != getLedBarModeName(LedBarMode::LedBarModePm)) {
-      isInvalid = true;
+      isConfigFieldInvalid = true;
     } else {
-      isInvalid = false;
+      isConfigFieldInvalid = false;
     }
   }
-  if (isInvalid) {
+  if (isConfigFieldInvalid) {
     jconfig[jprop_ledBarMode] = jprop_ledBarMode_default;
     changed = true;
     logInfo("toConfig: ledBarMode changed");
@@ -1094,11 +1213,11 @@ void Configuration::toConfig(const char *buf) {
 
   /** validate abcday */
   if (JSON.typeof_(jconfig[jprop_abcDays]) != "number") {
-    isInvalid = true;
+    isConfigFieldInvalid = true;
   } else {
-    isInvalid = false;
+    isConfigFieldInvalid = false;
   }
-  if (isInvalid) {
+  if (isConfigFieldInvalid) {
     jconfig[jprop_abcDays] = jprop_abcDays_default;
     changed = true;
     logInfo("toConfig: abcDays changed");
@@ -1106,16 +1225,16 @@ void Configuration::toConfig(const char *buf) {
 
   /** validate tvoc learning offset */
   if (JSON.typeof_(jconfig[jprop_tvocLearningOffset]) != "number") {
-    isInvalid = true;
+    isConfigFieldInvalid = true;
   } else {
     int value = jconfig[jprop_tvocLearningOffset];
     if (value < 0) {
-      isInvalid = true;
+      isConfigFieldInvalid = true;
     } else {
-      isInvalid = false;
+      isConfigFieldInvalid = false;
     }
   }
-  if (isInvalid) {
+  if (isConfigFieldInvalid) {
     jconfig[jprop_tvocLearningOffset] = jprop_tvocLearningOffset_default;
     changed = true;
     logInfo("toConfig: tvocLearningOffset changed");
@@ -1123,16 +1242,16 @@ void Configuration::toConfig(const char *buf) {
 
   /** validate nox learning offset */
   if (JSON.typeof_(jconfig[jprop_noxLearningOffset]) != "number") {
-    isInvalid = true;
+    isConfigFieldInvalid = true;
   } else {
     int value = jconfig[jprop_noxLearningOffset];
     if (value < 0) {
-      isInvalid = true;
+      isConfigFieldInvalid = true;
     } else {
-      isInvalid = false;
+      isConfigFieldInvalid = false;
     }
   }
-  if (isInvalid) {
+  if (isConfigFieldInvalid) {
     jconfig[jprop_noxLearningOffset] = jprop_noxLearningOffset_default;
     changed = true;
     logInfo("toConfig: noxLearningOffset changed");
@@ -1140,11 +1259,11 @@ void Configuration::toConfig(const char *buf) {
 
   /** validate mqtt broker */
   if (JSON.typeof_(jconfig[jprop_mqttBrokerUrl]) != "string") {
-    isInvalid = true;
+    isConfigFieldInvalid = true;
   } else {
-    isInvalid = false;
+    isConfigFieldInvalid = false;
   }
-  if (isInvalid) {
+  if (isConfigFieldInvalid) {
     changed = true;
     jconfig[jprop_mqttBrokerUrl] = jprop_mqttBrokerUrl_default;
     logInfo("toConfig: mqttBroker changed");
@@ -1152,24 +1271,36 @@ void Configuration::toConfig(const char *buf) {
 
   /** Validate temperature unit */
   if (JSON.typeof_(jconfig[jprop_temperatureUnit]) != "string") {
-    isInvalid = true;
+    isConfigFieldInvalid = true;
   } else {
     String unit = jconfig[jprop_temperatureUnit];
     if (unit != "c" && unit != "f") {
-      isInvalid = true;
+      isConfigFieldInvalid = true;
     } else {
-      isInvalid = false;
+      isConfigFieldInvalid = false;
     }
   }
-  if (isInvalid) {
+  if (isConfigFieldInvalid) {
     jconfig[jprop_temperatureUnit] = jprop_temperatureUnit_default;
     changed = true;
     logInfo("toConfig: temperatureUnit changed");
   }
 
+  /** validate disableCloudConnection configuration */
+  if (JSON.typeof_(jconfig[jprop_disableCloudConnection]) != "boolean") {
+    isConfigFieldInvalid = true;
+  } else {
+    isConfigFieldInvalid = false;
+  }
+  if (isConfigFieldInvalid) {
+    jconfig[jprop_disableCloudConnection] = jprop_disableCloudConnection_default;
+    changed = true;
+    logInfo("toConfig: disableCloudConnection changed");
+  }
+
   /** validate configuration control */
   if (JSON.typeof_(jprop_configurationControl) != "string") {
-    isInvalid = true;
+    isConfigFieldInvalid = true;
   } else {
     String ctrl = jconfig[jprop_configurationControl];
     if (ctrl != String(CONFIGURATION_CONTROL_NAME
@@ -1178,12 +1309,12 @@ void Configuration::toConfig(const char *buf) {
                            [ConfigurationControl::ConfigurationControlLocal]) &&
         ctrl != String(CONFIGURATION_CONTROL_NAME
                            [ConfigurationControl::ConfigurationControlCloud])) {
-      isInvalid = true;
+      isConfigFieldInvalid = true;
     } else {
-      isInvalid = false;
+      isConfigFieldInvalid = false;
     }
   }
-  if (isInvalid) {
+  if (isConfigFieldInvalid) {
     jconfig[jprop_configurationControl] =jprop_configurationControl_default;
     changed = true;
     logInfo("toConfig: configurationControl changed");
@@ -1191,11 +1322,11 @@ void Configuration::toConfig(const char *buf) {
 
   /** Validate post to airgradient cloud */
   if (JSON.typeof_(jconfig[jprop_postDataToAirGradient]) != "boolean") {
-    isInvalid = true;
+    isConfigFieldInvalid = true;
   } else {
-    isInvalid = false;
+    isConfigFieldInvalid = false;
   }
-  if (isInvalid) {
+  if (isConfigFieldInvalid) {
     jconfig[jprop_postDataToAirGradient] = jprop_postDataToAirGradient_default;
     changed = true;
     logInfo("toConfig: postToAirGradient changed");
@@ -1203,16 +1334,16 @@ void Configuration::toConfig(const char *buf) {
 
   /** validate led bar brightness */
   if (JSON.typeof_(jconfig[jprop_ledBarBrightness]) != "number") {
-    isInvalid = true;
+    isConfigFieldInvalid = true;
   } else {
     int value = jconfig[jprop_ledBarBrightness];
     if (value < 0 || value > 100) {
-      isInvalid = true;
+      isConfigFieldInvalid = true;
     } else {
-      isInvalid = false;
+      isConfigFieldInvalid = false;
     }
   }
-  if (isInvalid) {
+  if (isConfigFieldInvalid) {
     jconfig[jprop_ledBarBrightness] = jprop_ledBarBrightness_default;
     changed = true;
     logInfo("toConfig: ledBarBrightness changed");
@@ -1220,16 +1351,16 @@ void Configuration::toConfig(const char *buf) {
 
   /** Validate display brightness */
   if (JSON.typeof_(jconfig[jprop_displayBrightness]) != "number") {
-    isInvalid = true;
+    isConfigFieldInvalid = true;
   } else {
     int value = jconfig[jprop_displayBrightness];
     if (value < 0 || value > 100) {
-      isInvalid = true;
+      isConfigFieldInvalid = true;
     } else {
-      isInvalid = false;
+      isConfigFieldInvalid = false;
     }
   }
-  if (isInvalid) {
+  if (isConfigFieldInvalid) {
     jconfig[jprop_displayBrightness] = jprop_displayBrightness_default;
     changed = true;
     logInfo("toConfig: displayBrightness changed");
@@ -1248,15 +1379,31 @@ void Configuration::toConfig(const char *buf) {
         jprop_monitorDisplayCompensatedValues_default;
   }
 
-
+  // PM2.5 correction
-  // Set default first before parsing local config
+  /// Set default first before parsing local config
-  pmCorrection.algorithm = PMCorrectionAlgorithm::None;
+  pmCorrection.algorithm = COR_ALGO_PM_NONE;
   pmCorrection.intercept = 0;
   pmCorrection.scalingFactor = 0;
   pmCorrection.useEPA = false;
-  // Load correction from saved config
+  /// Load correction from saved config
   updatePmCorrection(jconfig);
 
+  // Temperature correction
+  /// Set default first before parsing local config
+  tempCorrection.algorithm = COR_ALGO_TEMP_HUM_NONE;
+  tempCorrection.intercept = 0;
+  tempCorrection.scalingFactor = 0;
+  /// Load correction from saved config
+  updateTempHumCorrection(jconfig, tempCorrection, jprop_atmp);
+
+  // Relative humidity correction
+  /// Set default first before parsing local config
+  rhumCorrection.algorithm = COR_ALGO_TEMP_HUM_NONE;
+  rhumCorrection.intercept = 0;
+  rhumCorrection.scalingFactor = 0;
+  /// Load correction from saved config
+  updateTempHumCorrection(jconfig, rhumCorrection, jprop_rhum);
+
   if (changed) {
     saveConfig();
   }
@@ -1334,6 +1481,17 @@ void Configuration::setOfflineModeWithoutSave(bool offline) {
   _offlineMode = offline;
 }
 
+bool Configuration::isCloudConnectionDisabled(void) {
+  bool disabled = jconfig[jprop_disableCloudConnection];
+  return disabled;
+}
+
+void Configuration::setDisableCloudConnection(bool disable) {
+  logInfo("Set DisableCloudConnection to " + String(disable ? "True" : "False"));
+  jconfig[jprop_disableCloudConnection] = disable;
+  saveConfig();
+}
+
 bool Configuration::isLedBarModeChanged(void) { 
   bool changed = _ledBarModeChanged;
   _ledBarModeChanged = false;
@@ -1369,14 +1527,16 @@ bool Configuration::isPMCorrectionChanged(void) {
  */
 bool Configuration::isPMCorrectionEnabled(void) {
   PMCorrection pmCorrection = getPMCorrection();
-  if (pmCorrection.algorithm == PMCorrectionAlgorithm::None ||
+  if (pmCorrection.algorithm == COR_ALGO_PM_NONE ||
-      pmCorrection.algorithm == PMCorrectionAlgorithm::Unknown) {
+      pmCorrection.algorithm == COR_ALGO_PM_UNKNOWN) {
     return false;
   }
 
   return true;
 }
 
-Configuration::PMCorrection Configuration::getPMCorrection(void) {
+Configuration::PMCorrection Configuration::getPMCorrection(void) { return pmCorrection; }
-  return pmCorrection;
+
-}
+Configuration::TempHumCorrection Configuration::getTempCorrection(void) { return tempCorrection; }
+
+Configuration::TempHumCorrection Configuration::getHumCorrection(void) { return rhumCorrection; }

src/AgConfigure.h

@@ -17,6 +17,13 @@ public:
     bool changed;
   };
 
+  struct TempHumCorrection {
+    TempHumCorrectionAlgorithm algorithm;
+    float intercept;
+    float scalingFactor;
+    bool changed;
+  };
+
 private:
   bool co2CalibrationRequested;
   bool ledBarTestRequested;
@@ -30,12 +37,17 @@ private:
   bool _offlineMode = false;
   bool _ledBarModeChanged = false;
   PMCorrection pmCorrection;
+  TempHumCorrection tempCorrection;
+  TempHumCorrection rhumCorrection;
 
   AirGradient* ag;
 
   String getLedBarModeName(LedBarMode mode);
   PMCorrectionAlgorithm matchPmAlgorithm(String algorithm);
+  TempHumCorrectionAlgorithm matchTempHumAlgorithm(String algorithm);
   bool updatePmCorrection(JSONVar &json);
+  bool updateTempHumCorrection(JSONVar &json, TempHumCorrection &target,
+                               const char *correctionName);
   void saveConfig(void);
   void loadConfig(void);
   void defaultConfig(void);
@@ -46,7 +58,7 @@ private:
   void configLogInfo(String name, String fromValue, String toValue);
   String getPMStandardString(bool usaqi);
   String getAbcDayString(int value);
-  void toConfig(const char* buf);
+  void toConfig(const char *buf);
 
 public:
   Configuration(Stream &debugLog);
@@ -94,11 +106,15 @@ public:
   bool isOfflineMode(void);
   void setOfflineMode(bool offline);
   void setOfflineModeWithoutSave(bool offline);
+  bool isCloudConnectionDisabled(void);
+  void setDisableCloudConnection(bool disable);
   bool isLedBarModeChanged(void);
   bool isMonitorDisplayCompensatedValues(void);
   bool isPMCorrectionChanged(void);
   bool isPMCorrectionEnabled(void);
   PMCorrection getPMCorrection(void);
+  TempHumCorrection getTempCorrection(void);
+  TempHumCorrection getHumCorrection(void);
 };
 
 #endif /** _AG_CONFIG_H_ */

src/AgOledDisplay.cpp

@@ -12,7 +12,7 @@
  */
 void OledDisplay::showTempHum(bool hasStatus, char *buf, int buf_size) {
   /** Temperature */
-  float temp = value.getAverage(Measurements::Temperature);
+  float temp = value.getCorrectedTempHum(Measurements::Temperature, 1);
   if (utils::isValidTemperature(temp)) {
     float t = 0.0f;
     if (config.isTemperatureUnitInF()) {
@@ -44,7 +44,7 @@ void OledDisplay::showTempHum(bool hasStatus, char *buf, int buf_size) {
   DISP()->drawUTF8(1, 10, buf);
 
   /** Show humidity */
-  int rhum = round(value.getAverage(Measurements::Humidity));
+  int rhum = round(value.getCorrectedTempHum(Measurements::Humidity, 1));
   if (utils::isValidHumidity(rhum)) {
     snprintf(buf, buf_size, "%d%%", rhum);
   } else {
@@ -316,7 +316,7 @@ void OledDisplay::showDashboard(const char *status) {
       int pm25 = round(value.getAverage(Measurements::PM25));
       if (utils::isValidPm(pm25)) {
         if (config.hasSensorSHT && config.isPMCorrectionEnabled()) {
-          pm25 = round(value.getCorrectedPM25(*ag, config, true));
+          pm25 = round(value.getCorrectedPM25(true));
         }
         if (config.isPmStandardInUSAQI()) {
           sprintf(strBuf, "%d", ag->pms5003.convertPm25ToUsAqi(pm25));
@@ -377,7 +377,7 @@ void OledDisplay::showDashboard(const char *status) {
     /** Set PM */
     int pm25 = round(value.getAverage(Measurements::PM25));
     if (config.hasSensorSHT && config.isPMCorrectionEnabled()) {
-      pm25 = round(value.getCorrectedPM25(*ag, config, true));
+      pm25 = round(value.getCorrectedPM25(true));
     }
 
     ag->display.setCursor(0, 12);
@@ -389,12 +389,12 @@ void OledDisplay::showDashboard(const char *status) {
     ag->display.setText(strBuf);
 
     /** Set temperature and humidity */
-    float temp = value.getAverage(Measurements::Temperature);
+    float temp = value.getCorrectedTempHum(Measurements::Temperature, 1);
     if (utils::isValidTemperature(temp)) {
       if (config.isTemperatureUnitInF()) {
         snprintf(strBuf, sizeof(strBuf), "T:%0.1f F", utils::degreeC_To_F(temp));
       } else {
-        snprintf(strBuf, sizeof(strBuf), "T:%0.f1 C", temp);
+        snprintf(strBuf, sizeof(strBuf), "T:%0.1f C", temp);
       }
     } else {
       if (config.isTemperatureUnitInF()) {
@@ -407,7 +407,7 @@ void OledDisplay::showDashboard(const char *status) {
     ag->display.setCursor(0, 24);
     ag->display.setText(strBuf);
 
-    int rhum = round(value.getAverage(Measurements::Humidity));
+    int rhum = round(value.getCorrectedTempHum(Measurements::Humidity, 1));
     if (utils::isValidHumidity(rhum)) {
       snprintf(strBuf, sizeof(strBuf), "H:%d %%", rhum);
     } else {

src/AgStateMachine.cpp

@@ -174,7 +174,7 @@ int StateMachine::pm25handleLeds(void) {
 
   int pm25Value = round(value.getAverage(Measurements::PM25));
   if (config.hasSensorSHT && config.isPMCorrectionEnabled()) {
-    pm25Value = round(value.getCorrectedPM25(*ag, config, true));
+    pm25Value = round(value.getCorrectedPM25(true));
   }
 
   if (pm25Value <= 5) {

src/AgValue.cpp

@@ -27,6 +27,53 @@
 #define json_prop_noxRaw "noxRaw"
 #define json_prop_co2 "rco2"
 
+Measurements::Measurements(Configuration &config) : config(config) {
+#ifndef ESP8266
+  _resetReason = (int)ESP_RST_UNKNOWN;
+#endif
+  
+  /* Set invalid value for each measurements as default value when initialized*/
+  _temperature[0].update.avg = utils::getInvalidTemperature();
+  _temperature[1].update.avg = utils::getInvalidTemperature();
+  _humidity[0].update.avg = utils::getInvalidHumidity();
+  _humidity[1].update.avg = utils::getInvalidHumidity();
+  _co2.update.avg = utils::getInvalidCO2();
+  _tvoc.update.avg = utils::getInvalidVOC();
+  _tvoc_raw.update.avg = utils::getInvalidVOC();
+  _nox.update.avg = utils::getInvalidNOx();
+  _nox_raw.update.avg = utils::getInvalidNOx();
+
+  _pm_03_pc[0].update.avg = utils::getInvalidPmValue();
+  _pm_03_pc[1].update.avg = utils::getInvalidPmValue();
+  _pm_05_pc[0].update.avg = utils::getInvalidPmValue();
+  _pm_05_pc[1].update.avg = utils::getInvalidPmValue();
+  _pm_5_pc[0].update.avg = utils::getInvalidPmValue();
+  _pm_5_pc[1].update.avg = utils::getInvalidPmValue();
+  
+  _pm_01[0].update.avg = utils::getInvalidPmValue();
+  _pm_01_sp[0].update.avg = utils::getInvalidPmValue();
+  _pm_01_pc[0].update.avg = utils::getInvalidPmValue();
+  _pm_01[1].update.avg = utils::getInvalidPmValue();
+  _pm_01_sp[1].update.avg = utils::getInvalidPmValue();
+  _pm_01_pc[1].update.avg = utils::getInvalidPmValue();
+
+  _pm_25[0].update.avg = utils::getInvalidPmValue();
+  _pm_25_sp[0].update.avg = utils::getInvalidPmValue();
+  _pm_25_pc[0].update.avg = utils::getInvalidPmValue();
+  _pm_25[1].update.avg = utils::getInvalidPmValue();
+  _pm_25_sp[1].update.avg = utils::getInvalidPmValue();
+  _pm_25_pc[1].update.avg = utils::getInvalidPmValue();
+
+  _pm_10[0].update.avg = utils::getInvalidPmValue();
+  _pm_10_sp[0].update.avg = utils::getInvalidPmValue();
+  _pm_10_pc[0].update.avg = utils::getInvalidPmValue();
+  _pm_10[1].update.avg = utils::getInvalidPmValue();
+  _pm_10_sp[1].update.avg = utils::getInvalidPmValue();
+  _pm_10_pc[1].update.avg = utils::getInvalidPmValue();
+}
+
+void Measurements::setAirGradient(AirGradient *ag) { this->ag = ag; }
+
 void Measurements::maxPeriod(MeasurementType type, int max) {
   switch (type) {
   case Temperature:
@@ -189,7 +236,7 @@ bool Measurements::update(MeasurementType type, int val, int ch) {
 
   // Sanity check if measurement type is defined for integer data type or not
   if (temporary == nullptr) {
-    Serial.printf("%s is not defined for integer data type\n", measurementTypeStr(type));
+    Serial.printf("%s is not defined for integer data type\n", measurementTypeStr(type).c_str());
     // TODO: Just assert?
     return false;
   }
@@ -228,7 +275,7 @@ bool Measurements::update(MeasurementType type, int val, int ch) {
   // Calculate average based on how many elements on the list
   temporary->update.avg = temporary->sumValues / (float)temporary->listValues.size();
   if (_debug) {
-    Serial.printf("%s{%d}: %.2f\n", measurementTypeStr(type), ch, temporary->update.avg);
+    Serial.printf("%s{%d}: %.2f\n", measurementTypeStr(type).c_str(), ch, temporary->update.avg);
   }
 
   return true;
@@ -260,7 +307,7 @@ bool Measurements::update(MeasurementType type, float val, int ch) {
 
   // Sanity check if measurement type is defined for float data type or not
   if (temporary == nullptr) {
-    Serial.printf("%s is not defined for float data type\n", measurementTypeStr(type));
+    Serial.printf("%s is not defined for float data type\n", measurementTypeStr(type).c_str());
     // TODO: Just assert?
     return false;
   }
@@ -299,7 +346,7 @@ bool Measurements::update(MeasurementType type, float val, int ch) {
   // Calculate average based on how many elements on the list
   temporary->update.avg = temporary->sumValues / (float)temporary->listValues.size();
   if (_debug) {
-    Serial.printf("%s{%d}: %.2f\n", measurementTypeStr(type), ch, temporary->update.avg);
+    Serial.printf("%s{%d}: %.2f\n", measurementTypeStr(type).c_str(), ch, temporary->update.avg);
   }
 
   return true;
@@ -348,7 +395,7 @@ int Measurements::get(MeasurementType type, int ch) {
 
   // Sanity check if measurement type is defined for integer data type or not
   if (temporary == nullptr) {
-    Serial.printf("%s is not defined for integer data type\n", measurementTypeStr(type));
+    Serial.printf("%s is not defined for integer data type\n", measurementTypeStr(type).c_str());
     // TODO: Just assert?
     return false;
   }
@@ -383,7 +430,7 @@ float Measurements::getFloat(MeasurementType type, int ch) {
 
   // Sanity check if measurement type is defined for float data type or not
   if (temporary == nullptr) {
-    Serial.printf("%s is not defined for float data type\n", measurementTypeStr(type));
+    Serial.printf("%s is not defined for float data type\n", measurementTypeStr(type).c_str());
     // TODO: Just assert?
     return false;
   }
@@ -400,12 +447,12 @@ float Measurements::getAverage(MeasurementType type, int ch) {
   // Sanity check to validate channel, assert if invalid
   validateChannel(ch);
 
+  bool undefined = false;
+
   // Follow array indexing just for get address of the value type
   ch = ch - 1;
 
   // Define data point source. Data type doesn't matter because only to get the average value
-  FloatValue *temporary = nullptr;
-  Update update;
   float measurementAverage;
   switch (type) {
   case CO2:
@@ -428,13 +475,13 @@ float Measurements::getAverage(MeasurementType type, int ch) {
     break;
   default:
     // Invalidate, measurements type not handled
-    measurementAverage = -1000;
+    undefined = true;
     break;
   };
 
   // Sanity check if measurement type is not defined
-  if (measurementAverage == -1000) {
+  if (undefined) {
-    Serial.printf("ERROR! %s is not defined on get average value function\n", measurementTypeStr(type));
+    Serial.printf("ERROR! %s is not defined on get average value function\n", measurementTypeStr(type).c_str());
     delay(1000);
     assert(0);
   }
@@ -529,7 +576,70 @@ void Measurements::validateChannel(int ch) {
   }
 }
 
-float Measurements::getCorrectedPM25(AirGradient &ag, Configuration &config, bool useAvg, int ch) {
+float Measurements::getCorrectedTempHum(MeasurementType type, int ch, bool forceCorrection) {
+  // Sanity check to validate channel, assert if invalid
+  validateChannel(ch);
+
+  // Follow array indexing just for get address of the value type
+  ch = ch - 1;
+  bool undefined = false;
+
+  float rawValue;
+  Configuration::TempHumCorrection correction;
+
+  switch (type) {
+  case Temperature: {
+    rawValue = _temperature[ch].update.avg;
+    Configuration::TempHumCorrection tmp = config.getTempCorrection();
+
+    // Apply 'standard' correction if its defined or correction forced
+    if (tmp.algorithm == TempHumCorrectionAlgorithm::COR_ALGO_TEMP_HUM_AG_PMS5003T_2024) {
+      return ag->pms5003t_1.compensateTemp(rawValue);
+    } else if (tmp.algorithm == TempHumCorrectionAlgorithm::COR_ALGO_TEMP_HUM_NONE && forceCorrection) {
+      return ag->pms5003t_1.compensateTemp(rawValue);
+    }
+
+    correction.algorithm = tmp.algorithm;
+    correction.intercept = tmp.intercept;
+    correction.scalingFactor = tmp.scalingFactor;
+    break;
+  }
+  case Humidity: {
+    rawValue = _humidity[ch].update.avg;
+    Configuration::TempHumCorrection tmp = config.getHumCorrection();
+
+    // Apply 'standard' correction if its defined or correction forced
+    if (tmp.algorithm == TempHumCorrectionAlgorithm::COR_ALGO_TEMP_HUM_AG_PMS5003T_2024) {
+      return ag->pms5003t_1.compensateHum(rawValue);
+    } else if (tmp.algorithm == TempHumCorrectionAlgorithm::COR_ALGO_TEMP_HUM_NONE && forceCorrection) {
+      return ag->pms5003t_1.compensateHum(rawValue);
+    }
+
+    correction.algorithm = tmp.algorithm;
+    correction.intercept = tmp.intercept;
+    correction.scalingFactor = tmp.scalingFactor;
+    break;
+  }
+  default:
+    // Should not be called for other measurements
+    delay(1000);
+    assert(0);
+  }
+
+  // Use raw if correction not defined
+  if (correction.algorithm == TempHumCorrectionAlgorithm::COR_ALGO_TEMP_HUM_NONE ||
+      correction.algorithm == TempHumCorrectionAlgorithm::COR_ALGO_TEMP_HUM_UNKNOWN) {
+    return rawValue;
+  }
+
+  // Custom correction constants
+  float corrected = (rawValue * correction.scalingFactor) + correction.intercept;
+  Serial.println("Custom correction applied");
+
+  return corrected;
+}
+
+float Measurements::getCorrectedPM25(bool useAvg, int ch, bool forceCorrection) {
   float pm25;
   float corrected;
   float humidity;
@@ -548,21 +658,27 @@ float Measurements::getCorrectedPM25(AirGradient &ag, Configuration &config, boo
 
   Configuration::PMCorrection pmCorrection = config.getPMCorrection();
   switch (pmCorrection.algorithm) {
-  case PMCorrectionAlgorithm::Unknown:
+  case PMCorrectionAlgorithm::COR_ALGO_PM_UNKNOWN:
-  case PMCorrectionAlgorithm::None:
+  case PMCorrectionAlgorithm::COR_ALGO_PM_NONE: {
-    // If correction is Unknown, then default is None
+    // If correction is Unknown or None, then default is None
+    // Unless forceCorrection enabled
+    if (forceCorrection) {
+      corrected = ag->pms5003.compensate(pm25, humidity);
+    } else {
       corrected = pm25;
+    }
     break;
-  case PMCorrectionAlgorithm::EPA_2021:
+  }
-    corrected = ag.pms5003.compensate(pm25, humidity);
+  case PMCorrectionAlgorithm::COR_ALGO_PM_EPA_2021:
+    corrected = ag->pms5003.compensate(pm25, humidity);
     break;
   default: {
     // All SLR correction using the same flow, hence default condition
-    corrected = ag.pms5003.slrCorrection(pm25, pm003Count, pmCorrection.scalingFactor,
+    corrected = ag->pms5003.slrCorrection(pm25, pm003Count, pmCorrection.scalingFactor,
                                           pmCorrection.intercept);
     if (pmCorrection.useEPA) {
       // Add EPA compensation on top of SLR
-      corrected = ag.pms5003.compensate(corrected, humidity);
+      corrected = ag->pms5003.compensate(corrected, humidity);
     }
   }
   }
@@ -570,48 +686,52 @@ float Measurements::getCorrectedPM25(AirGradient &ag, Configuration &config, boo
   return corrected;
 }
 
-String Measurements::toString(bool localServer, AgFirmwareMode fwMode, int rssi, AirGradient &ag,
+String Measurements::toString(bool localServer, AgFirmwareMode fwMode, int rssi) {
-                              Configuration &config) {
   JSONVar root;
 
-  if (ag.isOne() || (ag.isPro4_2()) || ag.isPro3_3() || ag.isBasic()) {
+  if (ag->isOne() || (ag->isPro4_2()) || ag->isPro3_3() || ag->isBasic()) {
-    root = buildIndoor(localServer, ag, config);
+    root = buildIndoor(localServer);
   } else {
-    root = buildOutdoor(localServer, fwMode, ag, config);
+    root = buildOutdoor(localServer, fwMode);
   }
 
   // CO2
   if (config.hasSensorS8 && utils::isValidCO2(_co2.update.avg)) {
-    root[json_prop_co2] = ag.round2(_co2.update.avg);
+    root[json_prop_co2] = ag->round2(_co2.update.avg);
   }
 
   /// TVOx and NOx
   if (config.hasSensorSGP) {
     if (utils::isValidVOC(_tvoc.update.avg)) {
-      root[json_prop_tvoc] = ag.round2(_tvoc.update.avg);
+      root[json_prop_tvoc] = ag->round2(_tvoc.update.avg);
     }
     if (utils::isValidVOC(_tvoc_raw.update.avg)) {
-      root[json_prop_tvocRaw] = ag.round2(_tvoc_raw.update.avg);
+      root[json_prop_tvocRaw] = ag->round2(_tvoc_raw.update.avg);
     }
     if (utils::isValidNOx(_nox.update.avg)) {
-      root[json_prop_nox] = ag.round2(_nox.update.avg);
+      root[json_prop_nox] = ag->round2(_nox.update.avg);
     }
     if (utils::isValidNOx(_nox_raw.update.avg)) {
-      root[json_prop_noxRaw] = ag.round2(_nox_raw.update.avg);
+      root[json_prop_noxRaw] = ag->round2(_nox_raw.update.avg);
     }
   }
 
-  root["boot"] = bootCount;
+  root["boot"] = _bootCount;
-  root["bootCount"] = bootCount;
+  root["bootCount"] = _bootCount;
   root["wifi"] = rssi;
 
   if (localServer) {
-    if (ag.isOne()) {
+    if (ag->isOne()) {
       root["ledMode"] = config.getLedBarModeName();
     }
-    root["serialno"] = ag.deviceId();
+    root["serialno"] = ag->deviceId();
-    root["firmware"] = ag.getVersion();
+    root["firmware"] = ag->getVersion();
     root["model"] = AgFirmwareModeName(fwMode);
+  } else {
+#ifndef ESP8266
+    root["resetReason"] = _resetReason;
+    root["freeHeap"] = ESP.getFreeHeap();
+#endif
   }
 
   String result = JSON.stringify(root);
@@ -619,8 +739,7 @@ String Measurements::toString(bool localServer, AgFirmwareMode fwMode, int rssi,
   return result;
 }
 
-JSONVar Measurements::buildOutdoor(bool localServer, AgFirmwareMode fwMode, AirGradient &ag,
+JSONVar Measurements::buildOutdoor(bool localServer, AgFirmwareMode fwMode) {
-                                   Configuration &config) {
   JSONVar outdoor;
   if (fwMode == FW_MODE_O_1P || fwMode == FW_MODE_O_1PS || fwMode == FW_MODE_O_1PST) {
     // buildPMS params:
@@ -629,14 +748,16 @@ JSONVar Measurements::buildOutdoor(bool localServer, AgFirmwareMode fwMode, AirG
     /// compensated values if requested by local server
     /// Set ch based on hasSensorPMSx
     if (config.hasSensorPMS1) {
-      outdoor = buildPMS(ag, 1, false, true, localServer);
+      outdoor = buildPMS(1, false, true, localServer);
       if (!localServer) {
-        outdoor[json_prop_pmFirmware] = pms5003TFirmwareVersion(ag.pms5003t_1.getFirmwareVersion());
+        outdoor[json_prop_pmFirmware] =
+            pms5003TFirmwareVersion(ag->pms5003t_1.getFirmwareVersion());
       }
     } else {
-      outdoor = buildPMS(ag, 2, false, true, localServer);
+      outdoor = buildPMS(2, false, true, localServer);
       if (!localServer) {
-        outdoor[json_prop_pmFirmware] = pms5003TFirmwareVersion(ag.pms5003t_2.getFirmwareVersion());
+        outdoor[json_prop_pmFirmware] =
+            pms5003TFirmwareVersion(ag->pms5003t_2.getFirmwareVersion());
       }
     }
   } else {
@@ -645,65 +766,55 @@ JSONVar Measurements::buildOutdoor(bool localServer, AgFirmwareMode fwMode, AirG
     /// Have 2 PMS sensor, allCh is set to true (ch params ignored)
     /// Enable temp hum from PMS
     /// compensated values if requested by local server
-    outdoor = buildPMS(ag, 1, true, true, localServer);
+    outdoor = buildPMS(1, true, true, localServer);
     // PMS5003T version
     if (!localServer) {
       outdoor["channels"]["1"][json_prop_pmFirmware] =
-          pms5003TFirmwareVersion(ag.pms5003t_1.getFirmwareVersion());
+          pms5003TFirmwareVersion(ag->pms5003t_1.getFirmwareVersion());
       outdoor["channels"]["2"][json_prop_pmFirmware] =
-          pms5003TFirmwareVersion(ag.pms5003t_2.getFirmwareVersion());
+          pms5003TFirmwareVersion(ag->pms5003t_2.getFirmwareVersion());
     }
   }
 
   return outdoor;
 }
 
-JSONVar Measurements::buildIndoor(bool localServer, AirGradient &ag, Configuration &config) {
+JSONVar Measurements::buildIndoor(bool localServer) {
   JSONVar indoor;
 
   if (config.hasSensorPMS1) {
     // buildPMS params:
     /// PMS channel 1 (indoor only have 1 PMS; hence allCh false)
     /// Not include temperature and humidity from PMS sensor
-    /// Not include compensated calculation
+    /// Include compensated calculation
-    indoor = buildPMS(ag, 1, false, false, false);
+    indoor = buildPMS(1, false, false, true);
     if (!localServer) {
       // Indoor is using PMS5003
-      indoor[json_prop_pmFirmware] = this->pms5003FirmwareVersion(ag.pms5003.getFirmwareVersion());
+      indoor[json_prop_pmFirmware] = this->pms5003FirmwareVersion(ag->pms5003.getFirmwareVersion());
     }
   }
 
   if (config.hasSensorSHT) {
     // Add temperature
     if (utils::isValidTemperature(_temperature[0].update.avg)) {
-      indoor[json_prop_temp] = ag.round2(_temperature[0].update.avg);
+      indoor[json_prop_temp] = ag->round2(_temperature[0].update.avg);
       if (localServer) {
-        indoor[json_prop_tempCompensated] = ag.round2(_temperature[0].update.avg);
+        indoor[json_prop_tempCompensated] = ag->round2(getCorrectedTempHum(Temperature));
       }
     }
     // Add humidity
     if (utils::isValidHumidity(_humidity[0].update.avg)) {
-      indoor[json_prop_rhum] = ag.round2(_humidity[0].update.avg);
+      indoor[json_prop_rhum] = ag->round2(_humidity[0].update.avg);
       if (localServer) {
-        indoor[json_prop_rhumCompensated] = ag.round2(_humidity[0].update.avg);
+        indoor[json_prop_rhumCompensated] = ag->round2(getCorrectedTempHum(Humidity));
       }
     }
   }
 
-  // Add pm25 compensated value only if PM2.5 and humidity value is valid
-  if (config.hasSensorPMS1 && utils::isValidPm(_pm_25[0].update.avg)) {
-    if (config.hasSensorSHT && utils::isValidHumidity(_humidity[0].update.avg)) {
-      // Correction using moving average value
-      float tmp = getCorrectedPM25(ag, config, true);
-      indoor[json_prop_pm25Compensated] = ag.round2(tmp);
-    }
-  }
-
   return indoor;
 }
 
-JSONVar Measurements::buildPMS(AirGradient &ag, int ch, bool allCh, bool withTempHum,
+JSONVar Measurements::buildPMS(int ch, bool allCh, bool withTempHum, bool compensate) {
-                               bool compensate) {
   JSONVar pms;
 
   // When only one of the channel
@@ -712,89 +823,86 @@ JSONVar Measurements::buildPMS(AirGradient &ag, int ch, bool allCh, bool withTem
     validateChannel(ch);
 
     // Follow array indexing just for get address of the value type
-    ch = ch - 1;
+    int chIndex = ch - 1;
 
-    if (utils::isValidPm(_pm_01[ch].update.avg)) {
+    if (utils::isValidPm(_pm_01[chIndex].update.avg)) {
-      pms[json_prop_pm01Ae] = ag.round2(_pm_01[ch].update.avg);
+      pms[json_prop_pm01Ae] = ag->round2(_pm_01[chIndex].update.avg);
     }
-    if (utils::isValidPm(_pm_25[ch].update.avg)) {
+    if (utils::isValidPm(_pm_25[chIndex].update.avg)) {
-      pms[json_prop_pm25Ae] = ag.round2(_pm_25[ch].update.avg);
+      pms[json_prop_pm25Ae] = ag->round2(_pm_25[chIndex].update.avg);
     }
-    if (utils::isValidPm(_pm_10[ch].update.avg)) {
+    if (utils::isValidPm(_pm_10[chIndex].update.avg)) {
-      pms[json_prop_pm10Ae] = ag.round2(_pm_10[ch].update.avg);
+      pms[json_prop_pm10Ae] = ag->round2(_pm_10[chIndex].update.avg);
     }
-    if (utils::isValidPm(_pm_01_sp[ch].update.avg)) {
+    if (utils::isValidPm(_pm_01_sp[chIndex].update.avg)) {
-      pms[json_prop_pm01Sp] = ag.round2(_pm_01_sp[ch].update.avg);
+      pms[json_prop_pm01Sp] = ag->round2(_pm_01_sp[chIndex].update.avg);
     }
-    if (utils::isValidPm(_pm_25_sp[ch].update.avg)) {
+    if (utils::isValidPm(_pm_25_sp[chIndex].update.avg)) {
-      pms[json_prop_pm25Sp] = ag.round2(_pm_25_sp[ch].update.avg);
+      pms[json_prop_pm25Sp] = ag->round2(_pm_25_sp[chIndex].update.avg);
     }
-    if (utils::isValidPm(_pm_10_sp[ch].update.avg)) {
+    if (utils::isValidPm(_pm_10_sp[chIndex].update.avg)) {
-      pms[json_prop_pm10Sp] = ag.round2(_pm_10_sp[ch].update.avg);
+      pms[json_prop_pm10Sp] = ag->round2(_pm_10_sp[chIndex].update.avg);
     }
-    if (utils::isValidPm03Count(_pm_03_pc[ch].update.avg)) {
+    if (utils::isValidPm03Count(_pm_03_pc[chIndex].update.avg)) {
-      pms[json_prop_pm03Count] = ag.round2(_pm_03_pc[ch].update.avg);
+      pms[json_prop_pm03Count] = ag->round2(_pm_03_pc[chIndex].update.avg);
     }
-    if (utils::isValidPm03Count(_pm_05_pc[ch].update.avg)) {
+    if (utils::isValidPm03Count(_pm_05_pc[chIndex].update.avg)) {
-      pms[json_prop_pm05Count] = ag.round2(_pm_05_pc[ch].update.avg);
+      pms[json_prop_pm05Count] = ag->round2(_pm_05_pc[chIndex].update.avg);
     }
-    if (utils::isValidPm03Count(_pm_01_pc[ch].update.avg)) {
+    if (utils::isValidPm03Count(_pm_01_pc[chIndex].update.avg)) {
-      pms[json_prop_pm1Count] = ag.round2(_pm_01_pc[ch].update.avg);
+      pms[json_prop_pm1Count] = ag->round2(_pm_01_pc[chIndex].update.avg);
     }
-    if (utils::isValidPm03Count(_pm_25_pc[ch].update.avg)) {
+    if (utils::isValidPm03Count(_pm_25_pc[chIndex].update.avg)) {
-      pms[json_prop_pm25Count] = ag.round2(_pm_25_pc[ch].update.avg);
+      pms[json_prop_pm25Count] = ag->round2(_pm_25_pc[chIndex].update.avg);
     }
-    if (_pm_5_pc[ch].listValues.empty() == false) {
+    if (_pm_5_pc[chIndex].listValues.empty() == false) {
       // Only include pm5.0 count when values available on its list
       // If not, means no pm5_pc available from the sensor
-      if (utils::isValidPm03Count(_pm_5_pc[ch].update.avg)) {
+      if (utils::isValidPm03Count(_pm_5_pc[chIndex].update.avg)) {
-        pms[json_prop_pm5Count] = ag.round2(_pm_5_pc[ch].update.avg);
+        pms[json_prop_pm5Count] = ag->round2(_pm_5_pc[chIndex].update.avg);
       }
     }
-    if (_pm_10_pc[ch].listValues.empty() == false) {
+    if (_pm_10_pc[chIndex].listValues.empty() == false) {
       // Only include pm10 count when values available on its list
       // If not, means no pm10_pc available from the sensor
-      if (utils::isValidPm03Count(_pm_10_pc[ch].update.avg)) {
+      if (utils::isValidPm03Count(_pm_10_pc[chIndex].update.avg)) {
-        pms[json_prop_pm10Count] = ag.round2(_pm_10_pc[ch].update.avg);
+        pms[json_prop_pm10Count] = ag->round2(_pm_10_pc[chIndex].update.avg);
       }
     }
 
     if (withTempHum) {
       float _vc;
       // Set temperature if valid
-      if (utils::isValidTemperature(_temperature[ch].update.avg)) {
+      if (utils::isValidTemperature(_temperature[chIndex].update.avg)) {
-        pms[json_prop_temp] = ag.round2(_temperature[ch].update.avg);
+        pms[json_prop_temp] = ag->round2(_temperature[chIndex].update.avg);
         // Compensate temperature when flag is set
         if (compensate) {
-          _vc = ag.pms5003t_1.compensateTemp(_temperature[ch].update.avg);
+          _vc = getCorrectedTempHum(Temperature, ch, true);
           if (utils::isValidTemperature(_vc)) {
-            pms[json_prop_tempCompensated] = ag.round2(_vc);
+            pms[json_prop_tempCompensated] = ag->round2(_vc);
           }
         }
       }
       // Set humidity if valid
-      if (utils::isValidHumidity(_humidity[ch].update.avg)) {
+      if (utils::isValidHumidity(_humidity[chIndex].update.avg)) {
-        pms[json_prop_rhum] = ag.round2(_humidity[ch].update.avg);
+        pms[json_prop_rhum] = ag->round2(_humidity[chIndex].update.avg);
         // Compensate relative humidity when flag is set
         if (compensate) {
-          _vc = ag.pms5003t_1.compensateHum(_humidity[ch].update.avg);
+          _vc = getCorrectedTempHum(Humidity, ch, true);
-          if (utils::isValidTemperature(_vc)) {
+          if (utils::isValidHumidity(_vc)) {
-            pms[json_prop_rhumCompensated] = ag.round2(_vc);
+            pms[json_prop_rhumCompensated] = ag->round2(_vc);
           }
         }
       }
 
+    }
+
     // Add pm25 compensated value only if PM2.5 and humidity value is valid
     if (compensate) {
-        if (utils::isValidPm(_pm_25[ch].update.avg) &&
+      if (utils::isValidPm(_pm_25[chIndex].update.avg) &&
-            utils::isValidHumidity(_humidity[ch].update.avg)) {
+          utils::isValidHumidity(_humidity[chIndex].update.avg)) {
-          // Note: the pms5003t object is not matter either for channel 1 or 2, compensate points to
+        float pm25 = getCorrectedPM25(true, ch, true);
-          // the same base function
+        pms[json_prop_pm25Compensated] = ag->round2(pm25);
-          float pm25 = ag.pms5003t_1.compensate(_pm_25[ch].update.avg, _humidity[ch].update.avg);
-          if (utils::isValidPm(pm25)) {
-            pms[json_prop_pm25Compensated] = ag.round2(pm25);
-          }
-        }
       }
     }
 
@@ -808,144 +916,144 @@ JSONVar Measurements::buildPMS(AirGradient &ag, int ch, bool allCh, bool withTem
   /// PM1.0 atmospheric environment
   if (utils::isValidPm(_pm_01[0].update.avg) && utils::isValidPm(_pm_01[1].update.avg)) {
     float avg = (_pm_01[0].update.avg + _pm_01[1].update.avg) / 2.0f;
-    pms[json_prop_pm01Ae] = ag.round2(avg);
+    pms[json_prop_pm01Ae] = ag->round2(avg);
-    pms["channels"]["1"][json_prop_pm01Ae] = ag.round2(_pm_01[0].update.avg);
+    pms["channels"]["1"][json_prop_pm01Ae] = ag->round2(_pm_01[0].update.avg);
-    pms["channels"]["2"][json_prop_pm01Ae] = ag.round2(_pm_01[1].update.avg);
+    pms["channels"]["2"][json_prop_pm01Ae] = ag->round2(_pm_01[1].update.avg);
   } else if (utils::isValidPm(_pm_01[0].update.avg)) {
-    pms[json_prop_pm01Ae] = ag.round2(_pm_01[0].update.avg);
+    pms[json_prop_pm01Ae] = ag->round2(_pm_01[0].update.avg);
-    pms["channels"]["1"][json_prop_pm01Ae] = ag.round2(_pm_01[0].update.avg);
+    pms["channels"]["1"][json_prop_pm01Ae] = ag->round2(_pm_01[0].update.avg);
   } else if (utils::isValidPm(_pm_01[1].update.avg)) {
-    pms[json_prop_pm01Ae] = ag.round2(_pm_01[1].update.avg);
+    pms[json_prop_pm01Ae] = ag->round2(_pm_01[1].update.avg);
-    pms["channels"]["2"][json_prop_pm01Ae] = ag.round2(_pm_01[1].update.avg);
+    pms["channels"]["2"][json_prop_pm01Ae] = ag->round2(_pm_01[1].update.avg);
   }
 
   /// PM2.5 atmospheric environment
   if (utils::isValidPm(_pm_25[0].update.avg) && utils::isValidPm(_pm_25[1].update.avg)) {
     float avg = (_pm_25[0].update.avg + _pm_25[1].update.avg) / 2.0f;
-    pms[json_prop_pm25Ae] = ag.round2(avg);
+    pms[json_prop_pm25Ae] = ag->round2(avg);
-    pms["channels"]["1"][json_prop_pm25Ae] = ag.round2(_pm_25[0].update.avg);
+    pms["channels"]["1"][json_prop_pm25Ae] = ag->round2(_pm_25[0].update.avg);
-    pms["channels"]["2"][json_prop_pm25Ae] = ag.round2(_pm_25[1].update.avg);
+    pms["channels"]["2"][json_prop_pm25Ae] = ag->round2(_pm_25[1].update.avg);
   } else if (utils::isValidPm(_pm_25[0].update.avg)) {
-    pms[json_prop_pm25Ae] = ag.round2(_pm_25[0].update.avg);
+    pms[json_prop_pm25Ae] = ag->round2(_pm_25[0].update.avg);
-    pms["channels"]["1"][json_prop_pm25Ae] = ag.round2(_pm_25[0].update.avg);
+    pms["channels"]["1"][json_prop_pm25Ae] = ag->round2(_pm_25[0].update.avg);
   } else if (utils::isValidPm(_pm_25[1].update.avg)) {
-    pms[json_prop_pm25Ae] = ag.round2(_pm_25[1].update.avg);
+    pms[json_prop_pm25Ae] = ag->round2(_pm_25[1].update.avg);
-    pms["channels"]["2"][json_prop_pm25Ae] = ag.round2(_pm_25[1].update.avg);
+    pms["channels"]["2"][json_prop_pm25Ae] = ag->round2(_pm_25[1].update.avg);
   }
 
   /// PM10 atmospheric environment
   if (utils::isValidPm(_pm_10[0].update.avg) && utils::isValidPm(_pm_10[1].update.avg)) {
     float avg = (_pm_10[0].update.avg + _pm_10[1].update.avg) / 2.0f;
-    pms[json_prop_pm10Ae] = ag.round2(avg);
+    pms[json_prop_pm10Ae] = ag->round2(avg);
-    pms["channels"]["1"][json_prop_pm10Ae] = ag.round2(_pm_10[0].update.avg);
+    pms["channels"]["1"][json_prop_pm10Ae] = ag->round2(_pm_10[0].update.avg);
-    pms["channels"]["2"][json_prop_pm10Ae] = ag.round2(_pm_10[1].update.avg);
+    pms["channels"]["2"][json_prop_pm10Ae] = ag->round2(_pm_10[1].update.avg);
   } else if (utils::isValidPm(_pm_10[0].update.avg)) {
-    pms[json_prop_pm10Ae] = ag.round2(_pm_10[0].update.avg);
+    pms[json_prop_pm10Ae] = ag->round2(_pm_10[0].update.avg);
-    pms["channels"]["1"][json_prop_pm10Ae] = ag.round2(_pm_10[0].update.avg);
+    pms["channels"]["1"][json_prop_pm10Ae] = ag->round2(_pm_10[0].update.avg);
   } else if (utils::isValidPm(_pm_10[1].update.avg)) {
-    pms[json_prop_pm10Ae] = ag.round2(_pm_10[1].update.avg);
+    pms[json_prop_pm10Ae] = ag->round2(_pm_10[1].update.avg);
-    pms["channels"]["2"][json_prop_pm10Ae] = ag.round2(_pm_10[1].update.avg);
+    pms["channels"]["2"][json_prop_pm10Ae] = ag->round2(_pm_10[1].update.avg);
   }
 
   /// PM1.0 standard particle
   if (utils::isValidPm(_pm_01_sp[0].update.avg) && utils::isValidPm(_pm_01_sp[1].update.avg)) {
     float avg = (_pm_01_sp[0].update.avg + _pm_01_sp[1].update.avg) / 2.0f;
-    pms[json_prop_pm01Sp] = ag.round2(avg);
+    pms[json_prop_pm01Sp] = ag->round2(avg);
-    pms["channels"]["1"][json_prop_pm01Sp] = ag.round2(_pm_01_sp[0].update.avg);
+    pms["channels"]["1"][json_prop_pm01Sp] = ag->round2(_pm_01_sp[0].update.avg);
-    pms["channels"]["2"][json_prop_pm01Sp] = ag.round2(_pm_01_sp[1].update.avg);
+    pms["channels"]["2"][json_prop_pm01Sp] = ag->round2(_pm_01_sp[1].update.avg);
   } else if (utils::isValidPm(_pm_01_sp[0].update.avg)) {
-    pms[json_prop_pm01Sp] = ag.round2(_pm_01_sp[0].update.avg);
+    pms[json_prop_pm01Sp] = ag->round2(_pm_01_sp[0].update.avg);
-    pms["channels"]["1"][json_prop_pm01Sp] = ag.round2(_pm_01_sp[0].update.avg);
+    pms["channels"]["1"][json_prop_pm01Sp] = ag->round2(_pm_01_sp[0].update.avg);
   } else if (utils::isValidPm(_pm_01_sp[1].update.avg)) {
-    pms[json_prop_pm01Sp] = ag.round2(_pm_01_sp[1].update.avg);
+    pms[json_prop_pm01Sp] = ag->round2(_pm_01_sp[1].update.avg);
-    pms["channels"]["2"][json_prop_pm01Sp] = ag.round2(_pm_01_sp[1].update.avg);
+    pms["channels"]["2"][json_prop_pm01Sp] = ag->round2(_pm_01_sp[1].update.avg);
   }
 
   /// PM2.5 standard particle
   if (utils::isValidPm(_pm_25_sp[0].update.avg) && utils::isValidPm(_pm_25_sp[1].update.avg)) {
     float avg = (_pm_25_sp[0].update.avg + _pm_25_sp[1].update.avg) / 2.0f;
-    pms[json_prop_pm25Sp] = ag.round2(avg);
+    pms[json_prop_pm25Sp] = ag->round2(avg);
-    pms["channels"]["1"][json_prop_pm25Sp] = ag.round2(_pm_25_sp[0].update.avg);
+    pms["channels"]["1"][json_prop_pm25Sp] = ag->round2(_pm_25_sp[0].update.avg);
-    pms["channels"]["2"][json_prop_pm25Sp] = ag.round2(_pm_25_sp[1].update.avg);
+    pms["channels"]["2"][json_prop_pm25Sp] = ag->round2(_pm_25_sp[1].update.avg);
   } else if (utils::isValidPm(_pm_25_sp[0].update.avg)) {
-    pms[json_prop_pm25Sp] = ag.round2(_pm_25_sp[0].update.avg);
+    pms[json_prop_pm25Sp] = ag->round2(_pm_25_sp[0].update.avg);
-    pms["channels"]["1"][json_prop_pm25Sp] = ag.round2(_pm_25_sp[0].update.avg);
+    pms["channels"]["1"][json_prop_pm25Sp] = ag->round2(_pm_25_sp[0].update.avg);
   } else if (utils::isValidPm(_pm_25_sp[1].update.avg)) {
-    pms[json_prop_pm25Sp] = ag.round2(_pm_25_sp[1].update.avg);
+    pms[json_prop_pm25Sp] = ag->round2(_pm_25_sp[1].update.avg);
-    pms["channels"]["2"][json_prop_pm25Sp] = ag.round2(_pm_25_sp[1].update.avg);
+    pms["channels"]["2"][json_prop_pm25Sp] = ag->round2(_pm_25_sp[1].update.avg);
   }
 
   /// PM10 standard particle
   if (utils::isValidPm(_pm_10_sp[0].update.avg) && utils::isValidPm(_pm_10_sp[1].update.avg)) {
     float avg = (_pm_10_sp[0].update.avg + _pm_10_sp[1].update.avg) / 2.0f;
-    pms[json_prop_pm10Sp] = ag.round2(avg);
+    pms[json_prop_pm10Sp] = ag->round2(avg);
-    pms["channels"]["1"][json_prop_pm10Sp] = ag.round2(_pm_10_sp[0].update.avg);
+    pms["channels"]["1"][json_prop_pm10Sp] = ag->round2(_pm_10_sp[0].update.avg);
-    pms["channels"]["2"][json_prop_pm10Sp] = ag.round2(_pm_10_sp[1].update.avg);
+    pms["channels"]["2"][json_prop_pm10Sp] = ag->round2(_pm_10_sp[1].update.avg);
   } else if (utils::isValidPm(_pm_10_sp[0].update.avg)) {
-    pms[json_prop_pm10Sp] = ag.round2(_pm_10_sp[0].update.avg);
+    pms[json_prop_pm10Sp] = ag->round2(_pm_10_sp[0].update.avg);
-    pms["channels"]["1"][json_prop_pm10Sp] = ag.round2(_pm_10_sp[0].update.avg);
+    pms["channels"]["1"][json_prop_pm10Sp] = ag->round2(_pm_10_sp[0].update.avg);
   } else if (utils::isValidPm(_pm_10_sp[1].update.avg)) {
-    pms[json_prop_pm10Sp] = ag.round2(_pm_10_sp[1].update.avg);
+    pms[json_prop_pm10Sp] = ag->round2(_pm_10_sp[1].update.avg);
-    pms["channels"]["2"][json_prop_pm10Sp] = ag.round2(_pm_10_sp[1].update.avg);
+    pms["channels"]["2"][json_prop_pm10Sp] = ag->round2(_pm_10_sp[1].update.avg);
   }
 
   /// PM003 particle count
   if (utils::isValidPm03Count(_pm_03_pc[0].update.avg) &&
       utils::isValidPm03Count(_pm_03_pc[1].update.avg)) {
     float avg = (_pm_03_pc[0].update.avg + _pm_03_pc[1].update.avg) / 2.0f;
-    pms[json_prop_pm03Count] = ag.round2(avg);
+    pms[json_prop_pm03Count] = ag->round2(avg);
-    pms["channels"]["1"][json_prop_pm03Count] = ag.round2(_pm_03_pc[0].update.avg);
+    pms["channels"]["1"][json_prop_pm03Count] = ag->round2(_pm_03_pc[0].update.avg);
-    pms["channels"]["2"][json_prop_pm03Count] = ag.round2(_pm_03_pc[1].update.avg);
+    pms["channels"]["2"][json_prop_pm03Count] = ag->round2(_pm_03_pc[1].update.avg);
   } else if (utils::isValidPm03Count(_pm_03_pc[0].update.avg)) {
-    pms[json_prop_pm03Count] = ag.round2(_pm_03_pc[0].update.avg);
+    pms[json_prop_pm03Count] = ag->round2(_pm_03_pc[0].update.avg);
-    pms["channels"]["1"][json_prop_pm03Count] = ag.round2(_pm_03_pc[0].update.avg);
+    pms["channels"]["1"][json_prop_pm03Count] = ag->round2(_pm_03_pc[0].update.avg);
   } else if (utils::isValidPm03Count(_pm_03_pc[1].update.avg)) {
-    pms[json_prop_pm03Count] = ag.round2(_pm_03_pc[1].update.avg);
+    pms[json_prop_pm03Count] = ag->round2(_pm_03_pc[1].update.avg);
-    pms["channels"]["2"][json_prop_pm03Count] = ag.round2(_pm_03_pc[1].update.avg);
+    pms["channels"]["2"][json_prop_pm03Count] = ag->round2(_pm_03_pc[1].update.avg);
   }
 
   /// PM0.5 particle count
   if (utils::isValidPm03Count(_pm_05_pc[0].update.avg) &&
       utils::isValidPm03Count(_pm_05_pc[1].update.avg)) {
     float avg = (_pm_05_pc[0].update.avg + _pm_05_pc[1].update.avg) / 2.0f;
-    pms[json_prop_pm05Count] = ag.round2(avg);
+    pms[json_prop_pm05Count] = ag->round2(avg);
-    pms["channels"]["1"][json_prop_pm05Count] = ag.round2(_pm_05_pc[0].update.avg);
+    pms["channels"]["1"][json_prop_pm05Count] = ag->round2(_pm_05_pc[0].update.avg);
-    pms["channels"]["2"][json_prop_pm05Count] = ag.round2(_pm_05_pc[1].update.avg);
+    pms["channels"]["2"][json_prop_pm05Count] = ag->round2(_pm_05_pc[1].update.avg);
   } else if (utils::isValidPm03Count(_pm_05_pc[0].update.avg)) {
-    pms[json_prop_pm05Count] = ag.round2(_pm_05_pc[0].update.avg);
+    pms[json_prop_pm05Count] = ag->round2(_pm_05_pc[0].update.avg);
-    pms["channels"]["1"][json_prop_pm05Count] = ag.round2(_pm_05_pc[0].update.avg);
+    pms["channels"]["1"][json_prop_pm05Count] = ag->round2(_pm_05_pc[0].update.avg);
   } else if (utils::isValidPm03Count(_pm_05_pc[1].update.avg)) {
-    pms[json_prop_pm05Count] = ag.round2(_pm_05_pc[1].update.avg);
+    pms[json_prop_pm05Count] = ag->round2(_pm_05_pc[1].update.avg);
-    pms["channels"]["2"][json_prop_pm05Count] = ag.round2(_pm_05_pc[1].update.avg);
+    pms["channels"]["2"][json_prop_pm05Count] = ag->round2(_pm_05_pc[1].update.avg);
   }
   /// PM1.0 particle count
   if (utils::isValidPm03Count(_pm_01_pc[0].update.avg) &&
       utils::isValidPm03Count(_pm_01_pc[1].update.avg)) {
     float avg = (_pm_01_pc[0].update.avg + _pm_01_pc[1].update.avg) / 2.0f;
-    pms[json_prop_pm1Count] = ag.round2(avg);
+    pms[json_prop_pm1Count] = ag->round2(avg);
-    pms["channels"]["1"][json_prop_pm1Count] = ag.round2(_pm_01_pc[0].update.avg);
+    pms["channels"]["1"][json_prop_pm1Count] = ag->round2(_pm_01_pc[0].update.avg);
-    pms["channels"]["2"][json_prop_pm1Count] = ag.round2(_pm_01_pc[1].update.avg);
+    pms["channels"]["2"][json_prop_pm1Count] = ag->round2(_pm_01_pc[1].update.avg);
   } else if (utils::isValidPm03Count(_pm_01_pc[0].update.avg)) {
-    pms[json_prop_pm1Count] = ag.round2(_pm_01_pc[0].update.avg);
+    pms[json_prop_pm1Count] = ag->round2(_pm_01_pc[0].update.avg);
-    pms["channels"]["1"][json_prop_pm1Count] = ag.round2(_pm_01_pc[0].update.avg);
+    pms["channels"]["1"][json_prop_pm1Count] = ag->round2(_pm_01_pc[0].update.avg);
   } else if (utils::isValidPm03Count(_pm_01_pc[1].update.avg)) {
-    pms[json_prop_pm1Count] = ag.round2(_pm_01_pc[1].update.avg);
+    pms[json_prop_pm1Count] = ag->round2(_pm_01_pc[1].update.avg);
-    pms["channels"]["2"][json_prop_pm1Count] = ag.round2(_pm_01_pc[1].update.avg);
+    pms["channels"]["2"][json_prop_pm1Count] = ag->round2(_pm_01_pc[1].update.avg);
   }
 
   /// PM2.5 particle count
   if (utils::isValidPm03Count(_pm_25_pc[0].update.avg) &&
       utils::isValidPm03Count(_pm_25_pc[1].update.avg)) {
     float avg = (_pm_25_pc[0].update.avg + _pm_25_pc[1].update.avg) / 2.0f;
-    pms[json_prop_pm25Count] = ag.round2(avg);
+    pms[json_prop_pm25Count] = ag->round2(avg);
-    pms["channels"]["1"][json_prop_pm25Count] = ag.round2(_pm_25_pc[0].update.avg);
+    pms["channels"]["1"][json_prop_pm25Count] = ag->round2(_pm_25_pc[0].update.avg);
-    pms["channels"]["2"][json_prop_pm25Count] = ag.round2(_pm_25_pc[1].update.avg);
+    pms["channels"]["2"][json_prop_pm25Count] = ag->round2(_pm_25_pc[1].update.avg);
   } else if (utils::isValidPm03Count(_pm_25_pc[0].update.avg)) {
-    pms[json_prop_pm25Count] = ag.round2(_pm_25_pc[0].update.avg);
+    pms[json_prop_pm25Count] = ag->round2(_pm_25_pc[0].update.avg);
-    pms["channels"]["1"][json_prop_pm25Count] = ag.round2(_pm_25_pc[0].update.avg);
+    pms["channels"]["1"][json_prop_pm25Count] = ag->round2(_pm_25_pc[0].update.avg);
   } else if (utils::isValidPm03Count(_pm_25_pc[1].update.avg)) {
-    pms[json_prop_pm25Count] = ag.round2(_pm_25_pc[1].update.avg);
+    pms[json_prop_pm25Count] = ag->round2(_pm_25_pc[1].update.avg);
-    pms["channels"]["2"][json_prop_pm25Count] = ag.round2(_pm_25_pc[1].update.avg);
+    pms["channels"]["2"][json_prop_pm25Count] = ag->round2(_pm_25_pc[1].update.avg);
   }
 
   // NOTE: No need for particle count 5.0 and 10. When allCh is true, basically monitor using
@@ -957,40 +1065,40 @@ JSONVar Measurements::buildPMS(AirGradient &ag, int ch, bool allCh, bool withTem
         utils::isValidTemperature(_temperature[1].update.avg)) {
 
       float temperature = (_temperature[0].update.avg + _temperature[1].update.avg) / 2.0f;
-      pms[json_prop_temp] = ag.round2(temperature);
+      pms[json_prop_temp] = ag->round2(temperature);
-      pms["channels"]["1"][json_prop_temp] = ag.round2(_temperature[0].update.avg);
+      pms["channels"]["1"][json_prop_temp] = ag->round2(_temperature[0].update.avg);
-      pms["channels"]["2"][json_prop_temp] = ag.round2(_temperature[1].update.avg);
+      pms["channels"]["2"][json_prop_temp] = ag->round2(_temperature[1].update.avg);
 
       if (compensate) {
         // Compensate both temperature channel
-        float temp = ag.pms5003t_1.compensateTemp(temperature);
+        float temp1 = getCorrectedTempHum(Temperature, 1, true);
-        float temp1 = ag.pms5003t_1.compensateTemp(_temperature[0].update.avg);
+        float temp2 = getCorrectedTempHum(Temperature, 2, true);
-        float temp2 = ag.pms5003t_2.compensateTemp(_temperature[1].update.avg);
+        float tempAverage = (temp1 + temp2) / 2.0f;
-        pms[json_prop_tempCompensated] = ag.round2(temp);
+        pms[json_prop_tempCompensated] = ag->round2(tempAverage);
-        pms["channels"]["1"][json_prop_tempCompensated] = ag.round2(temp1);
+        pms["channels"]["1"][json_prop_tempCompensated] = ag->round2(temp1);
-        pms["channels"]["2"][json_prop_tempCompensated] = ag.round2(temp2);
+        pms["channels"]["2"][json_prop_tempCompensated] = ag->round2(temp2);
       }
 
     } else if (utils::isValidTemperature(_temperature[0].update.avg)) {
-      pms[json_prop_temp] = ag.round2(_temperature[0].update.avg);
+      pms[json_prop_temp] = ag->round2(_temperature[0].update.avg);
-      pms["channels"]["1"][json_prop_temp] = ag.round2(_temperature[0].update.avg);
+      pms["channels"]["1"][json_prop_temp] = ag->round2(_temperature[0].update.avg);
 
       if (compensate) {
         // Compensate channel 1
-        float temp1 = ag.pms5003t_1.compensateTemp(_temperature[0].update.avg);
+        float temp1 = getCorrectedTempHum(Temperature, 1, true);
-        pms[json_prop_tempCompensated] = ag.round2(temp1);
+        pms[json_prop_tempCompensated] = ag->round2(temp1);
-        pms["channels"]["1"][json_prop_tempCompensated] = ag.round2(temp1);
+        pms["channels"]["1"][json_prop_tempCompensated] = ag->round2(temp1);
       }
 
     } else if (utils::isValidTemperature(_temperature[1].update.avg)) {
-      pms[json_prop_temp] = ag.round2(_temperature[1].update.avg);
+      pms[json_prop_temp] = ag->round2(_temperature[1].update.avg);
-      pms["channels"]["2"][json_prop_temp] = ag.round2(_temperature[1].update.avg);
+      pms["channels"]["2"][json_prop_temp] = ag->round2(_temperature[1].update.avg);
 
       if (compensate) {
         // Compensate channel 2
-        float temp2 = ag.pms5003t_2.compensateTemp(_temperature[1].update.avg);
+        float temp2 = getCorrectedTempHum(Temperature, 2, true);
-        pms[json_prop_tempCompensated] = ag.round2(temp2);
+        pms[json_prop_tempCompensated] = ag->round2(temp2);
-        pms["channels"]["2"][json_prop_tempCompensated] = ag.round2(temp2);
+        pms["channels"]["2"][json_prop_tempCompensated] = ag->round2(temp2);
       }
     }
 
@@ -998,40 +1106,40 @@ JSONVar Measurements::buildPMS(AirGradient &ag, int ch, bool allCh, bool withTem
     if (utils::isValidHumidity(_humidity[0].update.avg) &&
         utils::isValidHumidity(_humidity[1].update.avg)) {
       float humidity = (_humidity[0].update.avg + _humidity[1].update.avg) / 2.0f;
-      pms[json_prop_rhum] = ag.round2(humidity);
+      pms[json_prop_rhum] = ag->round2(humidity);
-      pms["channels"]["1"][json_prop_rhum] = ag.round2(_humidity[0].update.avg);
+      pms["channels"]["1"][json_prop_rhum] = ag->round2(_humidity[0].update.avg);
-      pms["channels"]["2"][json_prop_rhum] = ag.round2(_humidity[1].update.avg);
+      pms["channels"]["2"][json_prop_rhum] = ag->round2(_humidity[1].update.avg);
 
       if (compensate) {
         // Compensate both humidity channel
-        float hum = ag.pms5003t_1.compensateHum(humidity);
+        float hum1 = getCorrectedTempHum(Humidity, 1, true);
-        float hum1 = ag.pms5003t_1.compensateHum(_humidity[0].update.avg);
+        float hum2 = getCorrectedTempHum(Humidity, 2, true);
-        float hum2 = ag.pms5003t_2.compensateHum(_humidity[1].update.avg);
+        float humAverage = (hum1 + hum2) / 2.0f;
-        pms[json_prop_rhumCompensated] = ag.round2(hum);
+        pms[json_prop_rhumCompensated] = ag->round2(humAverage);
-        pms["channels"]["1"][json_prop_rhumCompensated] = ag.round2(hum1);
+        pms["channels"]["1"][json_prop_rhumCompensated] = ag->round2(hum1);
-        pms["channels"]["2"][json_prop_rhumCompensated] = ag.round2(hum2);
+        pms["channels"]["2"][json_prop_rhumCompensated] = ag->round2(hum2);
       }
 
     } else if (utils::isValidHumidity(_humidity[0].update.avg)) {
-      pms[json_prop_rhum] = ag.round2(_humidity[0].update.avg);
+      pms[json_prop_rhum] = ag->round2(_humidity[0].update.avg);
-      pms["channels"]["1"][json_prop_rhum] = ag.round2(_humidity[0].update.avg);
+      pms["channels"]["1"][json_prop_rhum] = ag->round2(_humidity[0].update.avg);
 
       if (compensate) {
         // Compensate humidity channel 1
-        float hum1 = ag.pms5003t_1.compensateHum(_humidity[0].update.avg);
+        float hum1 = getCorrectedTempHum(Humidity, 1, true);
-        pms[json_prop_rhumCompensated] = ag.round2(hum1);
+        pms[json_prop_rhumCompensated] = ag->round2(hum1);
-        pms["channels"]["1"][json_prop_rhumCompensated] = ag.round2(hum1);
+        pms["channels"]["1"][json_prop_rhumCompensated] = ag->round2(hum1);
       }
 
     } else if (utils::isValidHumidity(_humidity[1].update.avg)) {
-      pms[json_prop_rhum] = ag.round2(_humidity[1].update.avg);
+      pms[json_prop_rhum] = ag->round2(_humidity[1].update.avg);
-      pms["channels"]["2"][json_prop_rhum] = ag.round2(_humidity[1].update.avg);
+      pms["channels"]["2"][json_prop_rhum] = ag->round2(_humidity[1].update.avg);
 
       if (compensate) {
         // Compensate humidity channel 2
-        float hum2 = ag.pms5003t_2.compensateHum(_humidity[1].update.avg);
+        float hum2 = getCorrectedTempHum(Humidity, 2, true);
-        pms[json_prop_rhumCompensated] = ag.round2(hum2);
+        pms[json_prop_rhumCompensated] = ag->round2(hum2);
-        pms["channels"]["2"][json_prop_rhumCompensated] = ag.round2(hum2);
+        pms["channels"]["2"][json_prop_rhumCompensated] = ag->round2(hum2);
       }
     }
 
@@ -1042,22 +1150,22 @@ JSONVar Measurements::buildPMS(AirGradient &ag, int ch, bool allCh, bool withTem
       float pm25_comp2 = utils::getInvalidPmValue();
       if (utils::isValidPm(_pm_25[0].update.avg) &&
           utils::isValidHumidity(_humidity[0].update.avg)) {
-        pm25_comp1 = ag.pms5003t_1.compensate(_pm_25[0].update.avg, _humidity[0].update.avg);
+        pm25_comp1 = getCorrectedPM25(true, 1, true);
-        pms["channels"]["1"][json_prop_pm25Compensated] = ag.round2(pm25_comp1);
+        pms["channels"]["1"][json_prop_pm25Compensated] = ag->round2(pm25_comp1);
       }
       if (utils::isValidPm(_pm_25[1].update.avg) &&
           utils::isValidHumidity(_humidity[1].update.avg)) {
-        pm25_comp2 = ag.pms5003t_2.compensate(_pm_25[1].update.avg, _humidity[1].update.avg);
+        pm25_comp2 = getCorrectedPM25(true, 2, true);
-        pms["channels"]["2"][json_prop_pm25Compensated] = ag.round2(pm25_comp2);
+        pms["channels"]["2"][json_prop_pm25Compensated] = ag->round2(pm25_comp2);
       }
 
       /// Get average or one of the channel compensated value if only one channel is valid
       if (utils::isValidPm(pm25_comp1) && utils::isValidPm(pm25_comp2)) {
-        pms[json_prop_pm25Compensated] = ag.round2((pm25_comp1 + pm25_comp2) / 2.0f);
+        pms[json_prop_pm25Compensated] = ag->round2((pm25_comp1 + pm25_comp2) / 2.0f);
       } else if (utils::isValidPm(pm25_comp1)) {
-        pms[json_prop_pm25Compensated] = ag.round2(pm25_comp1);
+        pms[json_prop_pm25Compensated] = ag->round2(pm25_comp1);
       } else if (utils::isValidPm(pm25_comp2)) {
-        pms[json_prop_pm25Compensated] = ag.round2(pm25_comp2);
+        pms[json_prop_pm25Compensated] = ag->round2(pm25_comp2);
       }
     }
   }
@@ -1066,3 +1174,49 @@ JSONVar Measurements::buildPMS(AirGradient &ag, int ch, bool allCh, bool withTem
 }
 
 void Measurements::setDebug(bool debug) { _debug = debug; }
+
+int Measurements::bootCount() { return _bootCount; }
+
+void Measurements::setBootCount(int bootCount) { _bootCount = bootCount; }
+
+#ifndef ESP8266
+void Measurements::setResetReason(esp_reset_reason_t reason) {
+  switch (reason) {
+  case ESP_RST_UNKNOWN:
+    Serial.println("Reset reason: ESP_RST_UNKNOWN");
+    break;
+  case ESP_RST_POWERON:
+    Serial.println("Reset reason: ESP_RST_POWERON");
+    break;
+  case ESP_RST_EXT:
+    Serial.println("Reset reason: ESP_RST_EXT");
+    break;
+  case ESP_RST_SW:
+    Serial.println("Reset reason: ESP_RST_SW");
+    break;
+  case ESP_RST_PANIC:
+    Serial.println("Reset reason: ESP_RST_PANIC");
+    break;
+  case ESP_RST_INT_WDT:
+    Serial.println("Reset reason: ESP_RST_INT_WDT");
+    break;
+  case ESP_RST_TASK_WDT:
+    Serial.println("Reset reason: ESP_RST_TASK_WDT");
+    break;
+  case ESP_RST_WDT:
+    Serial.println("Reset reason: ESP_RST_WDT");
+    break;
+  case ESP_RST_BROWNOUT:
+    Serial.println("Reset reason: ESP_RST_BROWNOUT");
+    break;
+  case ESP_RST_SDIO:
+    Serial.println("Reset reason: ESP_RST_SDIO");
+    break;
+  default:
+    Serial.println("Reset reason: unknown");
+    break;
+  }
+
+  _resetReason = (int)reason;
+}
+#endif

src/AgValue.h

@@ -34,9 +34,11 @@ private:
   };
 
 public:
-  Measurements() {}
+  Measurements(Configuration &config);
   ~Measurements() {}
 
+  void setAirGradient(AirGradient *ag);
+
   // Enumeration for every AG measurements
   enum MeasurementType {
     Temperature,
@@ -123,34 +125,51 @@ public:
    */
   float getAverage(MeasurementType type, int ch = 1);
 
+  /**
+   * @brief Get Temperature or Humidity correction value
+   * Only if correction is applied from configuration or forceCorrection is True
+   *
+   * @param type measurement type either Temperature or Humidity
+   * @param ch target type value channel
+   * @param forceCorrection force using correction even though config correction is not applied, but
+   * not for CUSTOM
+   * @return correction value
+   */
+  float getCorrectedTempHum(MeasurementType type, int ch = 1, bool forceCorrection = false);
+
   /**
    * @brief Get the Corrected PM25 object based on the correction algorithm from configuration
    *
    * If correction is not enabled, then will return the raw value (either average or last value)
    *
-   * @param ag AirGradient instance
-   * @param config Configuration instance
    * @param useAvg Use moving average value if true, otherwise use latest value
    * @param ch MeasurementType channel
+   * @param forceCorrection force using correction even though config correction is not applied, default to EPA
    * @return float Corrected PM2.5 value
    */
-  float getCorrectedPM25(AirGradient &ag, Configuration &config, bool useAvg = false, int ch = 1);
+  float getCorrectedPM25(bool useAvg = false, int ch = 1, bool forceCorrection = false);
 
   /**
    * build json payload for every measurements
    */
-  String toString(bool localServer, AgFirmwareMode fwMode, int rssi, AirGradient &ag,
+  String toString(bool localServer, AgFirmwareMode fwMode, int rssi);
-                  Configuration &config);
 
   /**
    * Set to true if want to debug every update value
    */
   void setDebug(bool debug);
 
-  // TODO: update this to use setter
+  int bootCount();
-  int bootCount;
+  void setBootCount(int bootCount);
+
+#ifndef ESP8266
+  void setResetReason(esp_reset_reason_t reason);
+#endif
 
 private:
+  Configuration &config;
+  AirGradient *ag;
+
   // Some declared as an array (channel), because FW_MODE_O_1PPx has two PMS5003T
   FloatValue _temperature[2];
   FloatValue _humidity[2];
@@ -171,7 +190,8 @@ private:
   IntegerValue _pm_25_pc[2]; // particle count 2.5
   IntegerValue _pm_5_pc[2];  // particle count 5.0
   IntegerValue _pm_10_pc[2]; // particle count 10
-
+  int _bootCount;
+  int _resetReason;
   bool _debug = false;
 
   /**
@@ -208,10 +228,9 @@ private:
    */
   void validateChannel(int ch);
 
-  JSONVar buildOutdoor(bool localServer, AgFirmwareMode fwMode, AirGradient &ag,
+  JSONVar buildOutdoor(bool localServer, AgFirmwareMode fwMode);
-                       Configuration &config);
+  JSONVar buildIndoor(bool localServer);
-  JSONVar buildIndoor(bool localServer, AirGradient &ag, Configuration &config);
+  JSONVar buildPMS(int ch, bool allCh, bool withTempHum, bool compensate);
-  JSONVar buildPMS(AirGradient &ag, int ch, bool allCh, bool withTempHum, bool compensate);
 };
 
 #endif /** _AG_VALUE_H_ */

src/AgWiFiConnector.cpp

@@ -81,16 +81,15 @@ bool WifiConnector::connect(void) {
   // ssid = "AG-" + String(ESP.getChipId(), HEX);
   WIFI()->setConfigPortalTimeout(WIFI_CONNECT_COUNTDOWN_MAX);
 
-  WiFiManagerParameter postToAg("chbPostToAg",
+  WiFiManagerParameter disableCloud("chbPostToAg", "Prevent Connection to AirGradient Server", "T",
-                                "Prevent Connection to AirGradient Server", "T",
                                     2, "type=\"checkbox\" ", WFM_LABEL_AFTER);
-  WIFI()->addParameter(&postToAg);
+  WIFI()->addParameter(&disableCloud);
-  WiFiManagerParameter postToAgInfo(
+  WiFiManagerParameter disableCloudInfo(
       "<p>Prevent connection to the AirGradient Server. Important: Only enable "
       "it if you are sure you don't want to use any AirGradient cloud "
-      "features. As a result you will not receive automatic firmware updates "
+      "features. As a result you will not receive automatic firmware updates, "
-      "and your data will not reach the AirGradient dashboard.</p>");
+      "configuration settings from cloud and the measure data will not reach the AirGradient dashboard.</p>");
-  WIFI()->addParameter(&postToAgInfo);
+  WIFI()->addParameter(&disableCloudInfo);
 
   WIFI()->autoConnect(ssid.c_str(), WIFI_HOTSPOT_PASSWORD_DEFAULT);
 
@@ -174,12 +173,11 @@ bool WifiConnector::connect(void) {
     logInfo("WiFi Connected: " + WiFi.SSID() + " IP: " + localIpStr());
 
     if (hasPortalConfig) {
-      String result = String(postToAg.getValue());
+      String result = String(disableCloud.getValue());
-      logInfo("Setting postToAirGradient set from " +
+      logInfo("Setting disableCloudConnection set from " +
-              String(config.isPostDataToAirGradient() ? "True" : "False") +
+              String(config.isCloudConnectionDisabled() ? "True" : "False") + String(" to ") +
-              String(" to ") + String(result != "T" ? "True" : "False") +
+              String(result == "T" ? "True" : "False") + String(" successful"));
-              String(" successful"));
+      config.setDisableCloudConnection(result == "T");
-      config.setPostToAirGradient(result != "T");
     }
     hasPortalConfig = false;
   }

src/AirGradient.h

@@ -15,7 +15,46 @@
 #include "Main/utils.h"
 
 #ifndef GIT_VERSION
-#define GIT_VERSION "3.1.12-snap"
+#define GIT_VERSION "3.2.0-snap"
+#endif
+
+#ifndef ESP8266
+// Airgradient server root ca certificate
+const char *const AG_SERVER_ROOT_CA =
+    "-----BEGIN CERTIFICATE-----\n"
+    "MIIF4jCCA8oCCQD7MgvcaVWxkTANBgkqhkiG9w0BAQsFADCBsjELMAkGA1UEBhMC\n"
+    "VEgxEzARBgNVBAgMCkNoaWFuZyBNYWkxEDAOBgNVBAcMB01hZSBSaW0xGTAXBgNV\n"
+    "BAoMEEFpckdyYWRpZW50IEx0ZC4xFDASBgNVBAsMC1NlbnNvciBMYWJzMSgwJgYD\n"
+    "VQQDDB9BaXJHcmFkaWVudCBTZW5zb3IgTGFicyBSb290IENBMSEwHwYJKoZIhvcN\n"
+    "AQkBFhJjYUBhaXJncmFkaWVudC5jb20wHhcNMjEwOTE3MTE0NDE3WhcNNDEwOTEy\n"
+    "MTE0NDE3WjCBsjELMAkGA1UEBhMCVEgxEzARBgNVBAgMCkNoaWFuZyBNYWkxEDAO\n"
+    "BgNVBAcMB01hZSBSaW0xGTAXBgNVBAoMEEFpckdyYWRpZW50IEx0ZC4xFDASBgNV\n"
+    "BAsMC1NlbnNvciBMYWJzMSgwJgYDVQQDDB9BaXJHcmFkaWVudCBTZW5zb3IgTGFi\n"
+    "cyBSb290IENBMSEwHwYJKoZIhvcNAQkBFhJjYUBhaXJncmFkaWVudC5jb20wggIi\n"
+    "MA0GCSqGSIb3DQEBAQUAA4ICDwAwggIKAoICAQC6XkVQ4O9d5GcUjPYRgF/uaY6O\n"
+    "5ry1xCGvotxkEeKkBk99lB1oNUUfNsP5bwuDci4XKfY9Ro6/jmkfHSVcPAwUnjAt\n"
+    "BcHqZtA/cMXykaynf9yXPxPQN7XLu/Rk32RIfb90sIGS318xgNziCYvzWZmlxpxc\n"
+    "3gUcAgGtamlgZ6wD3yOHVo8B9aFNvmP16QwkUm8fKDHunJG+iX2Bxa4ka5FJovhG\n"
+    "TnUwtso6Vrn0JaWF9qWcPZE0JZMjFW8PYRriyJmHwr/nAXfPPKphD1oRO+oA7/jq\n"
+    "dYkrJw6+OHfFXnPB1xkeh4OPBzcCZHT5XWNfwBYazYpjcJa9ngGFSmg8lX1ac23C\n"
+    "zea1XJmSrPwbZbWxoQznnf7Y78mRjruYKgSP8rf74KYvBe/HGPL5NQyXQ3l6kwmu\n"
+    "CCUqfcC0wCWEtWESxwSdFE2qQii8CZ12kQExzvR2PrOIyKQYSdkGx9/RBZtAVPXP\n"
+    "hmLuRBQYHrF5Cxf1oIbBK8OMoNVgBm6ftt15t9Sq9dH5Aup2YR6WEJkVaYkYzZzK\n"
+    "X7M+SQcdbXp+hAO8PFpABJxkaDAO2kiB5Ov7pDYPAcmNFqnJT48AY0TZJeVeCa5W\n"
+    "sIv3lPvB/XcFjP0+aZxxNSEEwpGPUYgvKUYUUmb0NammlYQwZHKaShPEmZ3UZ0bp\n"
+    "VNt4p6374nzO376sSwIDAQABMA0GCSqGSIb3DQEBCwUAA4ICAQB/LfBPgTx7xKQB\n"
+    "JNMUhah17AFAn050NiviGJOHdPQely6u3DmJGg+ijEVlPWO1FEW3it+LOuNP5zOu\n"
+    "bhq8paTYIxPxtALIxw5ksykX9woDuX3H6FF9mPdQIbL7ft+3ZtZ4FWPui9dUtaPe\n"
+    "ZBmDFDi4U29nhWZK68JSp5QkWjfaYLV/vtag7120eVyGEPFZ0UAuTUNqpw+stOt9\n"
+    "gJ2ZxNx13xJ8ZnLK7qz1crPe8/8IVAdxbVLoY7JaWPLc//+VF+ceKicy8+4gV7zN\n"
+    "Gnq2IyM+CHFz8VYMLbW+3eVp4iJjTa72vae116kozboEIUVN9rgLqIKyVqQXiuoN\n"
+    "g3xY+yfncPB2+H/+lfyy6mepPIfgksd3+KeNxFADSc5EVY2JKEdorRodnAh7a8K6\n"
+    "WjTYgq+GjWXU2uQW2SyPt6Tu33OT8nBnu3NB80eT8WXgdVCkgsuyCuLvNRf1Xmze\n"
+    "igvurpU6JmQ1GlLgLJo8omJHTh1zIbkR9injPYne2v9ciHCoP6+LDEqe+rOsvPCB\n"
+    "C/o/iZ4svmYX4fWGuU7GgqZE8hhrC3+GdOTf2ADC752cYCZxBidXGtkrGNoHQKmQ\n"
+    "KCOMFBxZIvWteB3tUo3BKYz1D2CvKWz1wV4moc5JHkOgS+jqxhvOkQ/vfQBQ1pUY\n"
+    "TMui9BSwU7B1G2XjdLbfF3Dc67zaSg==\n"
+    "-----END CERTIFICATE-----\n";
 #endif
 
 /**

src/App/AppDef.h

@@ -95,15 +95,18 @@ enum ConfigurationControl {
 };
 
 enum PMCorrectionAlgorithm {
-  Unknown, // Unknown algorithm
+  COR_ALGO_PM_UNKNOWN, // Unknown algorithm
-  None,    // No PM correction
+  COR_ALGO_PM_NONE,    // No PM correction
-  EPA_2021,
+  COR_ALGO_PM_EPA_2021,
-  SLR_PMS5003_20220802,
+  COR_ALGO_PM_SLR_CUSTOM,
-  SLR_PMS5003_20220803,
+};
-  SLR_PMS5003_20220824,
+
-  SLR_PMS5003_20231030,
+// Don't change the order of the enum
-  SLR_PMS5003_20231218,
+enum TempHumCorrectionAlgorithm {
-  SLR_PMS5003_20240104,
+  COR_ALGO_TEMP_HUM_UNKNOWN, // Unknown algorithm
+  COR_ALGO_TEMP_HUM_NONE,    // No PM correction
+  COR_ALGO_TEMP_HUM_AG_PMS5003T_2024,
+  COR_ALGO_TEMP_HUM_SLR_CUSTOM
 };
 
 enum AgFirmwareMode {

src/OtaHandler.cpp

@@ -0,0 +1,171 @@
+#include "OtaHandler.h"
+
+#ifndef ESP8266 // Only for esp32 based mcu
+
+#include "AirGradient.h"
+
+void OtaHandler::setHandlerCallback(OtaHandlerCallback_t callback) { _callback = callback; }
+
+void OtaHandler::updateFirmwareIfOutdated(String deviceId) {
+  String url =
+      "https://hw.airgradient.com/sensors/airgradient:" + deviceId + "/generic/os/firmware.bin";
+  url += "?current_firmware=";
+  url += GIT_VERSION;
+  char urlAsChar[URL_BUF_SIZE];
+  url.toCharArray(urlAsChar, URL_BUF_SIZE);
+  Serial.printf("checking for new OTA update @ %s\n", urlAsChar);
+
+  esp_http_client_config_t config = {};
+  config.url = urlAsChar;
+  config.cert_pem = AG_SERVER_ROOT_CA;
+  OtaUpdateOutcome ret = attemptToPerformOta(&config);
+  Serial.println(ret);
+  if (_callback) {
+    switch (ret) {
+    case OtaUpdateOutcome::UPDATE_PERFORMED:
+      _callback(OtaState::OTA_STATE_SUCCESS, "");
+      break;
+    case OtaUpdateOutcome::UPDATE_SKIPPED:
+      _callback(OtaState::OTA_STATE_SKIP, "");
+      break;
+    case OtaUpdateOutcome::ALREADY_UP_TO_DATE:
+      _callback(OtaState::OTA_STATE_UP_TO_DATE, "");
+      break;
+    case OtaUpdateOutcome::UPDATE_FAILED:
+      _callback(OtaState::OTA_STATE_FAIL, "");
+      break;
+    default:
+      break;
+    }
+  }
+}
+
+OtaHandler::OtaUpdateOutcome
+OtaHandler::attemptToPerformOta(const esp_http_client_config_t *config) {
+  esp_http_client_handle_t client = esp_http_client_init(config);
+  if (client == NULL) {
+    Serial.println("Failed to initialize HTTP connection");
+    return OtaUpdateOutcome::UPDATE_FAILED;
+  }
+
+  esp_err_t err = esp_http_client_open(client, 0);
+  if (err != ESP_OK) {
+    esp_http_client_cleanup(client);
+    Serial.printf("Failed to open HTTP connection: %s\n", esp_err_to_name(err));
+    return OtaUpdateOutcome::UPDATE_FAILED;
+  }
+  esp_http_client_fetch_headers(client);
+
+  int httpStatusCode = esp_http_client_get_status_code(client);
+  if (httpStatusCode == 304) {
+    Serial.println("Firmware is already up to date");
+    cleanupHttp(client);
+    return OtaUpdateOutcome::ALREADY_UP_TO_DATE;
+  } else if (httpStatusCode != 200) {
+    Serial.printf("Firmware update skipped, the server returned %d\n", httpStatusCode);
+    cleanupHttp(client);
+    return OtaUpdateOutcome::UPDATE_SKIPPED;
+  }
+
+  esp_ota_handle_t update_handle = 0;
+  const esp_partition_t *update_partition = NULL;
+  Serial.println("Starting OTA update ...");
+  update_partition = esp_ota_get_next_update_partition(NULL);
+  if (update_partition == NULL) {
+    Serial.println("Passive OTA partition not found");
+    cleanupHttp(client);
+    return OtaUpdateOutcome::UPDATE_FAILED;
+  }
+  Serial.printf("Writing to partition subtype %d at offset 0x%x\n", update_partition->subtype,
+                update_partition->address);
+
+  err = esp_ota_begin(update_partition, OTA_SIZE_UNKNOWN, &update_handle);
+  if (err != ESP_OK) {
+    Serial.printf("esp_ota_begin failed, error=%d\n", err);
+    cleanupHttp(client);
+    return OtaUpdateOutcome::UPDATE_FAILED;
+  }
+
+  esp_err_t ota_write_err = ESP_OK;
+  char *upgrade_data_buf = (char *)malloc(OTA_BUF_SIZE);
+  if (!upgrade_data_buf) {
+    Serial.println("Couldn't allocate memory for data buffer");
+    return OtaUpdateOutcome::UPDATE_FAILED;
+  }
+
+  int binary_file_len = 0;
+  int totalSize = esp_http_client_get_content_length(client);
+  Serial.println("File size: " + String(totalSize) + String(" bytes"));
+
+  // Show display start update new firmware.
+  if (_callback) {
+    _callback(OtaState::OTA_STATE_BEGIN, "");
+  }
+
+  // Download file and write new firmware to OTA partition
+  uint32_t lastUpdate = millis();
+  while (1) {
+    int data_read = esp_http_client_read(client, upgrade_data_buf, OTA_BUF_SIZE);
+    if (data_read == 0) {
+      if (_callback) {
+        _callback(OtaState::OTA_STATE_PROCESSING, String(100));
+      }
+      Serial.println("Connection closed, all data received");
+      break;
+    }
+    if (data_read < 0) {
+      Serial.println("Data read error");
+      if (_callback) {
+        _callback(OtaState::OTA_STATE_FAIL, "");
+      }
+      break;
+    }
+    if (data_read > 0) {
+      ota_write_err = esp_ota_write(update_handle, (const void *)upgrade_data_buf, data_read);
+      if (ota_write_err != ESP_OK) {
+        if (_callback) {
+          _callback(OtaState::OTA_STATE_FAIL, "");
+        }
+        break;
+      }
+      binary_file_len += data_read;
+
+      int percent = (binary_file_len * 100) / totalSize;
+      uint32_t ms = (uint32_t)(millis() - lastUpdate);
+      if (ms >= 250) {
+        // sm.executeOTA(StateMachine::OtaState::OTA_STATE_PROCESSING, "",
+        //               percent);
+        if (_callback) {
+          _callback(OtaState::OTA_STATE_PROCESSING, String(percent));
+        }
+        lastUpdate = millis();
+      }
+    }
+  }
+  free(upgrade_data_buf);
+  cleanupHttp(client);
+  Serial.printf("# of bytes written: %d\n", binary_file_len);
+
+  esp_err_t ota_end_err = esp_ota_end(update_handle);
+  if (ota_write_err != ESP_OK) {
+    Serial.printf("Error: esp_ota_write failed! err=0x%d\n", err);
+    return OtaUpdateOutcome::UPDATE_FAILED;
+  } else if (ota_end_err != ESP_OK) {
+    Serial.printf("Error: esp_ota_end failed! err=0x%d. Image is invalid", ota_end_err);
+    return OtaUpdateOutcome::UPDATE_FAILED;
+  }
+
+  err = esp_ota_set_boot_partition(update_partition);
+  if (err != ESP_OK) {
+    Serial.printf("esp_ota_set_boot_partition failed! err=0x%d\n", err);
+    return OtaUpdateOutcome::UPDATE_FAILED;
+  }
+  return OtaUpdateOutcome::UPDATE_PERFORMED;
+}
+
+void OtaHandler::cleanupHttp(esp_http_client_handle_t client) {
+  esp_http_client_close(client);
+  esp_http_client_cleanup(client);
+}
+
+#endif

src/OtaHandler.h

@@ -0,0 +1,43 @@
+#ifndef OTA_HANDLER_H
+#define OTA_HANDLER_H
+#ifndef ESP8266 // Only for esp32 based mcu
+
+#include <Arduino.h>
+#include <esp_err.h>
+#include <esp_http_client.h>
+#include <esp_ota_ops.h>
+
+#define OTA_BUF_SIZE 1024
+#define URL_BUF_SIZE 256
+
+class OtaHandler {
+public:
+  enum OtaState {
+    OTA_STATE_BEGIN,
+    OTA_STATE_FAIL,
+    OTA_STATE_SKIP,
+    OTA_STATE_UP_TO_DATE,
+    OTA_STATE_PROCESSING,
+    OTA_STATE_SUCCESS
+  };
+
+  typedef void (*OtaHandlerCallback_t)(OtaState state, String message);
+  void setHandlerCallback(OtaHandlerCallback_t callback);
+  void updateFirmwareIfOutdated(String deviceId);
+
+private:
+  OtaHandlerCallback_t _callback;
+
+  enum OtaUpdateOutcome {
+    UPDATE_PERFORMED = 0,
+    ALREADY_UP_TO_DATE,
+    UPDATE_FAILED,
+    UPDATE_SKIPPED
+  }; // Internal use
+
+  OtaUpdateOutcome attemptToPerformOta(const esp_http_client_config_t *config);
+  void cleanupHttp(esp_http_client_handle_t client);
+};
+
+#endif // ESP8266
+#endif //  OTA_HANDLER_H