Changed measurement and update interval for Open Air. Added fw version to logs.

Adjusted new name for example files

.github/workflows/check.yml

@@ -0,0 +1,51 @@
+on: [push, pull_request]
+jobs:
+  compile:
+    strategy:
+      fail-fast: false
+      matrix:
+        example:
+          - "BASIC"
+          - "ONE"
+          - "Open_Air"
+          - "TestCO2"
+          - "TestPM"
+          - "TestSht"
+        fqbn:
+          - "esp8266:esp8266:d1_mini"
+          - "esp32:esp32:esp32c3"
+        include:
+          - fqbn: "esp8266:esp8266:d1_mini"
+            core: "esp8266:esp8266@3.1.2"
+            core_url: "https://arduino.esp8266.com/stable/package_esp8266com_index.json"
+          - fqbn: "esp32:esp32:esp32c3"
+            board_options: "JTAGAdapter=default,CDCOnBoot=cdc,PartitionScheme=default,CPUFreq=160,FlashMode=qio,FlashFreq=80,FlashSize=4M,UploadSpeed=921600,DebugLevel=verbose,EraseFlash=none"
+            core: "esp32:esp32@2.0.11"
+        exclude:
+          - example: "BASIC_v4"
+            fqbn: "esp32:esp32:esp32c3"
+          - example: "ONE_I-9PSL"
+            fqbn: "esp8266:esp8266:d1_mini"
+          - example: "Open_Air"
+            fqbn: "esp8266:esp8266:d1_mini"
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - run:
+          curl -fsSL https://raw.githubusercontent.com/arduino/arduino-cli/master/install.sh |
+          sh -s 0.35.3
+      - run: bin/arduino-cli --verbose core install '${{ matrix.core }}'
+          --additional-urls '${{ matrix.core_url }}'
+      - run: bin/arduino-cli --verbose lib install
+          WiFiManager@2.0.16-rc.2
+          Arduino_JSON@0.2.0
+          U8g2@2.34.22
+      - run: bin/arduino-cli --verbose lib install --git-url .
+        env:
+          ARDUINO_LIBRARY_ENABLE_UNSAFE_INSTALL: "true"
+      - run: bin/arduino-cli --verbose compile 'examples/${{ matrix.example }}'
+          --fqbn '${{ matrix.fqbn }}' --board-options '${{ matrix.board_options }}'
+      # TODO: at this point it would be a good idea to run some smoke tests on
+      # the resulting image (e.g. that it boots successfully and sends metrics)
+      # but that would either require a high fidelity device emulator, or a
+      # "hardware lab" runner that is directly connected to a relevant device.

.gitignore

@@ -1,2 +1,3 @@
-.vscode
 *.DS_Store
+build
+.vscode

examples/BASIC/BASIC.ino

@@ -50,7 +50,7 @@ CC BY-SA 4.0 Attribution-ShareAlike 4.0 International License
 #define SENSOR_TVOC_UPDATE_INTERVAL 1000     /** ms */
 #define SENSOR_CO2_UPDATE_INTERVAL 5000      /** ms */
 #define SENSOR_PM_UPDATE_INTERVAL 5000       /** ms */
-#define SENSOR_TEMP_HUM_UPDATE_INTERVAL 5000 /** ms */
+#define SENSOR_TEMP_HUM_UPDATE_INTERVAL 2000 /** ms */
 #define DISPLAY_DELAY_SHOW_CONTENT_MS 2000   /** ms */
 #define WIFI_HOTSPOT_PASSWORD_DEFAULT                                          \
   "cleanair" /** default WiFi AP password                                      \
@@ -115,7 +115,7 @@ public:
    * @return true Success
    * @return false Failure
    */
-  bool pollServerConfig(String id) {
+  bool fetchServerConfiguration(String id) {
     String uri =
         "http://hw.airgradient.com/sensors/airgradient:" + id + "/one/config";
 
@@ -368,10 +368,10 @@ static bool wifiHasConfig = false; /** */
 static void boardInit(void);
 static void failedHandler(String msg);
 static void co2Calibration(void);
-static void serverConfigPoll(void);
+static void updateServerConfiguration(void);
-static void co2Poll(void);
+static void co2Update(void);
-static void pmPoll(void);
+static void pmUpdate(void);
-static void tempHumPoll(void);
+static void tempHumUpdate(void);
 static void sendDataToServer(void);
 static void dispHandler(void);
 static String getDevId(void);
@@ -382,12 +382,12 @@ bool hasSensorS8 = true;
 bool hasSensorPMS = true;
 bool hasSensorSHT = true;
 int pmFailCount = 0;
-AgSchedule configSchedule(SERVER_CONFIG_UPDATE_INTERVAL, serverConfigPoll);
+AgSchedule configSchedule(SERVER_CONFIG_UPDATE_INTERVAL, updateServerConfiguration);
 AgSchedule serverSchedule(SERVER_SYNC_INTERVAL, sendDataToServer);
 AgSchedule dispSchedule(DISP_UPDATE_INTERVAL, dispHandler);
-AgSchedule co2Schedule(SENSOR_CO2_UPDATE_INTERVAL, co2Poll);
+AgSchedule co2Schedule(SENSOR_CO2_UPDATE_INTERVAL, co2Update);
-AgSchedule pmsSchedule(SENSOR_PM_UPDATE_INTERVAL, pmPoll);
+AgSchedule pmsSchedule(SENSOR_PM_UPDATE_INTERVAL, pmUpdate);
-AgSchedule tempHumSchedule(SENSOR_TEMP_HUM_UPDATE_INTERVAL, tempHumPoll);
+AgSchedule tempHumSchedule(SENSOR_TEMP_HUM_UPDATE_INTERVAL, tempHumUpdate);
 
 void setup() {
   Serial.begin(115200);
@@ -413,7 +413,7 @@ void setup() {
     wifiHasConfig = true;
     sendPing();
 
-    agServer.pollServerConfig(getDevId());
+    agServer.fetchServerConfiguration(getDevId());
     if (agServer.isCo2Calib()) {
       co2Calibration();
     }
@@ -576,8 +576,8 @@ static void co2Calibration(void) {
   }
 }
 
-static void serverConfigPoll(void) {
+static void updateServerConfiguration(void) {
-  if (agServer.pollServerConfig(getDevId())) {
+  if (agServer.fetchServerConfiguration(getDevId())) {
     if (agServer.isCo2Calib()) {
       if (hasSensorS8) {
         co2Calibration();
@@ -609,12 +609,12 @@ static void serverConfigPoll(void) {
   }
 }
 
-static void co2Poll() {
+static void co2Update() {
   co2Ppm = ag.s8.getCo2();
   Serial.printf("CO2 index: %d\r\n", co2Ppm);
 }
 
-void pmPoll() {
+void pmUpdate() {
   if (ag.pms5003.readData()) {
     pm25 = ag.pms5003.getPm25Ae();
     Serial.printf("PMS2.5: %d\r\n", pm25);
@@ -628,7 +628,7 @@ void pmPoll() {
   }
 }
 
-static void tempHumPoll() {
+static void tempHumUpdate() {
   if (ag.sht.measure()) {
     temp = ag.sht.getTemperature();
     hum = ag.sht.getRelativeHumidity();

examples/ONE/ONE.ino

@@ -90,14 +90,15 @@ enum {
 #define WIFI_CONNECT_RETRY_MS 10000          /** ms */
 #define LED_BAR_COUNT_INIT_VALUE (-1)        /** */
 #define LED_BAR_ANIMATION_PERIOD 100         /** ms */
-#define DISP_UPDATE_INTERVAL 5000            /** ms */
+#define DISP_UPDATE_INTERVAL 2500            /** ms */
-#define SERVER_CONFIG_UPDATE_INTERVAL 30000  /** ms */
+#define SERVER_CONFIG_UPDATE_INTERVAL 15000  /** ms */
 #define SERVER_SYNC_INTERVAL 60000           /** ms */
+#define MQTT_SYNC_INTERVAL 60000             /** ms */
 #define SENSOR_CO2_CALIB_COUNTDOWN_MAX 5     /** sec */
 #define SENSOR_TVOC_UPDATE_INTERVAL 1000     /** ms */
-#define SENSOR_CO2_UPDATE_INTERVAL 5000      /** ms */
+#define SENSOR_CO2_UPDATE_INTERVAL 4000      /** ms */
-#define SENSOR_PM_UPDATE_INTERVAL 5000       /** ms */
+#define SENSOR_PM_UPDATE_INTERVAL 2000       /** ms */
-#define SENSOR_TEMP_HUM_UPDATE_INTERVAL 5000 /** ms */
+#define SENSOR_TEMP_HUM_UPDATE_INTERVAL 2000 /** ms */
 #define DISPLAY_DELAY_SHOW_CONTENT_MS 2000   /** ms */
 #define WIFI_HOTSPOT_PASSWORD_DEFAULT                                          \
   "cleanair" /** default WiFi AP password                                      \
@@ -153,13 +154,27 @@ public:
   }
 
   /**
-   * @brief Get server configuration
+   * @brief Reset local config into default value.
+   *
+   */
+  void defaultReset(void) {
+    config.inF = false;
+    config.inUSAQI = false;
+    memset(config.models, 0, sizeof(config.models));
+    memset(config.mqttBrokers, 0, sizeof(config.mqttBrokers));
+    config.useRGBLedBar = UseLedBarOff;
+    saveConfig();
+  }
+
+  /**
+   * @brief Fetch server configuration, if get sucessed and configuratrion
+   * parameter has changed store into local storage
    *
    * @param id Device ID
    * @return true Success
    * @return false Failure
    */
-  bool pollServerConfig(String id) {
+  bool fetchServerConfiguration(String id) {
     String uri =
         "http://hw.airgradient.com/sensors/airgradient:" + id + "/one/config";
 
@@ -631,6 +646,7 @@ public:
   int connectionFailedCount(void) { return connectFailedCount; }
 };
 AgMqtt agMqtt;
+static TaskHandle_t mqttTask = NULL;
 
 /** Create airgradient instance for 'ONE_INDOOR' board */
 AirGradient ag(ONE_INDOOR);
@@ -665,7 +681,7 @@ static String wifiSSID = "";
 
 static void boardInit(void);
 static void failedHandler(String msg);
-static void serverConfigPoll(void);
+static void updateServerConfiguration(void);
 static void co2Calibration(void);
 static void setRGBledPMcolor(int pm25Value);
 static void ledSmHandler(int sm);
@@ -675,15 +691,17 @@ static void sensorLedColorHandler(void);
 static void appLedHandler(void);
 static void appDispHandler(void);
 static void updateWiFiConnect(void);
-static void updateDispLedBar(void);
+static void displayAndLedBarUpdate(void);
-static void tvocPoll(void);
+static void tvocUpdate(void);
-static void pmPoll(void);
+static void pmUpdate(void);
 static void sendDataToServer(void);
-static void tempHumPoll(void);
+static void tempHumUpdate(void);
-static void co2Poll(void);
+static void co2Update(void);
 static void showNr(void);
 static void webServerInit(void);
 static String getServerSyncData(bool localServer);
+static void createMqttTask(void);
+static void factoryConfigReset(void);
 
 /** Init schedule */
 bool hasSensorS8 = true;
@@ -691,13 +709,16 @@ bool hasSensorPMS = true;
 bool hasSensorSGP = true;
 bool hasSensorSHT = true;
 int pmFailCount = 0;
-AgSchedule dispLedSchedule(DISP_UPDATE_INTERVAL, updateDispLedBar);
+uint32_t factoryBtnPressTime = 0;
-AgSchedule configSchedule(SERVER_CONFIG_UPDATE_INTERVAL, serverConfigPoll);
+String mdnsModelName = "";
+AgSchedule dispLedSchedule(DISP_UPDATE_INTERVAL, displayAndLedBarUpdate);
+AgSchedule configSchedule(SERVER_CONFIG_UPDATE_INTERVAL,
+                          updateServerConfiguration);
 AgSchedule serverSchedule(SERVER_SYNC_INTERVAL, sendDataToServer);
-AgSchedule co2Schedule(SENSOR_CO2_UPDATE_INTERVAL, co2Poll);
+AgSchedule co2Schedule(SENSOR_CO2_UPDATE_INTERVAL, co2Update);
-AgSchedule pmsSchedule(SENSOR_PM_UPDATE_INTERVAL, pmPoll);
+AgSchedule pmsSchedule(SENSOR_PM_UPDATE_INTERVAL, pmUpdate);
-AgSchedule tempHumSchedule(SENSOR_TEMP_HUM_UPDATE_INTERVAL, tempHumPoll);
+AgSchedule tempHumSchedule(SENSOR_TEMP_HUM_UPDATE_INTERVAL, tempHumUpdate);
-AgSchedule tvocSchedule(SENSOR_TVOC_UPDATE_INTERVAL, tvocPoll);
+AgSchedule tvocSchedule(SENSOR_TVOC_UPDATE_INTERVAL, tvocUpdate);
 
 void setup() {
   EEPROM.begin(512);
@@ -715,7 +736,8 @@ void setup() {
   u8g2.begin();
 
   /** Show boot display */
-  displayShowText("One V9", "Lib Ver: " + ag.getVersion(), "");
+  Serial.println("Firmware Version: "+ag.getVersion());
+  displayShowText("One V9", "FW Ver: " + ag.getVersion(), "");
   delay(DISPLAY_DELAY_SHOW_CONTENT_MS);
 
   /** Init sensor */
@@ -725,7 +747,7 @@ void setup() {
   agServer.begin();
 
   /** Run LED test on start up */
-  displayShowText("Press now for", "LED test", "");
+  displayShowText("Press now for", "LED test &", "offline mode");
   bool test = false;
   uint32_t stime = millis();
   while (1) {
@@ -741,9 +763,9 @@ void setup() {
   }
   if (test) {
     ledTest();
+  } else {
+    connectToWifi();
   }
-  /** WIFI connect */
-  connectToWifi();
 
   /**
    * Send first data to ping server and get server configuration
@@ -754,6 +776,7 @@ void setup() {
     /** MQTT init */
     if (agServer.getMqttBroker().isEmpty() == false) {
       if (agMqtt.begin(agServer.getMqttBroker())) {
+        createMqttTask();
         Serial.println("MQTT client init success");
       } else {
         Serial.println("MQTT client init failure");
@@ -766,7 +789,7 @@ void setup() {
     Serial.println(WiFi.localIP());
 
     /** Get first connected to wifi */
-    agServer.pollServerConfig(getDevId());
+    agServer.fetchServerConfiguration(getDevId());
     if (agServer.isConfigFailed()) {
       dispSmHandler(APP_SM_WIFI_OK_SERVER_OK_SENSOR_CONFIG_FAILED);
       ledSmHandler(APP_SM_WIFI_OK_SERVER_OK_SENSOR_CONFIG_FAILED);
@@ -797,6 +820,7 @@ void loop() {
   }
 
   if (hasSensorSHT) {
+    delay(100);
     tempHumSchedule.run();
   }
 
@@ -806,6 +830,9 @@ void loop() {
 
   /** Check for handle WiFi reconnect */
   updateWiFiConnect();
+
+  /** factory reset handle */
+  factoryConfigReset();
 }
 
 static void setTestColor(char color) {
@@ -881,7 +908,7 @@ static void ledTest2Min(void) {
   }
 }
 
-static void co2Poll(void) {
+static void co2Update(void) {
   co2Ppm = ag.s8.getCo2();
   Serial.printf("CO2 index: %d\r\n", co2Ppm);
 }
@@ -892,6 +919,141 @@ void webServerMeasureCurrentGet(void) {
   webServer.send(200, "application/json", getServerSyncData(true));
 }
 
+/**
+ * Sends metrics in Prometheus/OpenMetrics format to the currently connected
+ * webServer client.
+ *
+ * For background, see:
+ * https://prometheus.io/docs/instrumenting/exposition_formats/
+ */
+void webServerMetricsGet(void) {
+  String response;
+  String current_metric_name;
+  const auto add_metric = [&](const String &name, const String &help,
+                              const String &type, const String &unit = "") {
+    current_metric_name = "airgradient_" + name;
+    if (!unit.isEmpty())
+      current_metric_name += "_" + unit;
+    response += "# HELP " + current_metric_name + " " + help + "\n";
+    response += "# TYPE " + current_metric_name + " " + type + "\n";
+    if (!unit.isEmpty())
+      response += "# UNIT " + current_metric_name + " " + unit + "\n";
+  };
+  const auto add_metric_point = [&](const String &labels, const String &value) {
+    response += current_metric_name + "{" + labels + "} " + value + "\n";
+  };
+
+  add_metric("info", "AirGradient device information", "info");
+  add_metric_point("airgradient_serial_number=\"" + getDevId() +
+                       "\",airgradient_device_type=\"" + ag.getBoardName() +
+                       "\",airgradient_library_version=\"" + ag.getVersion() +
+                       "\"",
+                   "1");
+
+  add_metric("config_ok",
+             "1 if the AirGradient device was able to successfully fetch its "
+             "configuration from the server",
+             "gauge");
+  add_metric_point("", agServer.isConfigFailed() ? "0" : "1");
+
+  add_metric(
+      "post_ok",
+      "1 if the AirGradient device was able to successfully send to the server",
+      "gauge");
+  add_metric_point("", agServer.isServerFailed() ? "0" : "1");
+
+  add_metric(
+      "wifi_rssi",
+      "WiFi signal strength from the AirGradient device perspective, in dBm",
+      "gauge", "dbm");
+  add_metric_point("", String(WiFi.RSSI()));
+
+  if (hasSensorS8 && co2Ppm >= 0) {
+    add_metric("co2",
+               "Carbon dioxide concentration as measured by the AirGradient S8 "
+               "sensor, in parts per million",
+               "gauge", "ppm");
+    add_metric_point("", String(co2Ppm));
+  }
+
+  if (hasSensorPMS) {
+    if (pm01 >= 0) {
+      add_metric("pm1",
+                 "PM1.0 concentration as measured by the AirGradient PMS "
+                 "sensor, in micrograms per cubic meter",
+                 "gauge", "ugm3");
+      add_metric_point("", String(pm01));
+    }
+    if (pm25 >= 0) {
+      add_metric("pm2d5",
+                 "PM2.5 concentration as measured by the AirGradient PMS "
+                 "sensor, in micrograms per cubic meter",
+                 "gauge", "ugm3");
+      add_metric_point("", String(pm25));
+    }
+    if (pm10 >= 0) {
+      add_metric("pm10",
+                 "PM10 concentration as measured by the AirGradient PMS "
+                 "sensor, in micrograms per cubic meter",
+                 "gauge", "ugm3");
+      add_metric_point("", String(pm10));
+    }
+    if (pm03PCount >= 0) {
+      add_metric("pm0d3",
+                 "PM0.3 concentration as measured by the AirGradient PMS "
+                 "sensor, in number of particules per 100 milliliters",
+                 "gauge", "p100ml");
+      add_metric_point("", String(pm03PCount));
+    }
+  }
+
+  if (hasSensorSGP) {
+    if (tvocIndex >= 0) {
+      add_metric("tvoc_index",
+                 "The processed Total Volatile Organic Compounds (TVOC) index "
+                 "as measured by the AirGradient SGP sensor",
+                 "gauge");
+      add_metric_point("", String(tvocIndex));
+    }
+    if (tvocRawIndex >= 0) {
+      add_metric("tvoc_raw_index",
+                 "The raw input value to the Total Volatile Organic Compounds "
+                 "(TVOC) index as measured by the AirGradient SGP sensor",
+                 "gauge");
+      add_metric_point("", String(tvocRawIndex));
+    }
+    if (noxIndex >= 0) {
+      add_metric("nox_index",
+                 "The processed Nitrous Oxide (NOx) index as measured by the "
+                 "AirGradient SGP sensor",
+                 "gauge");
+      add_metric_point("", String(noxIndex));
+    }
+  }
+
+  if (hasSensorSHT) {
+    if (temp > -1001) {
+      add_metric("temperature",
+                 "The ambient temperature as measured by the AirGradient SHT "
+                 "sensor, in degrees Celsius",
+                 "gauge", "degc");
+      add_metric_point("", String(temp));
+    }
+    if (hum >= 0) {
+      add_metric(
+          "humidity",
+          "The relative humidity as measured by the AirGradient SHT sensor",
+          "gauge", "percent");
+      add_metric_point("", String(hum));
+    }
+  }
+
+  response += "# EOF\n";
+  webServer.send(200,
+                 "application/openmetrics-text; version=1.0.0; charset=utf-8",
+                 response);
+}
+
 void webServerHandler(void *param) {
   for (;;) {
     webServer.handleClient();
@@ -906,8 +1068,16 @@ static void webServerInit(void) {
   }
 
   webServer.on("/measures/current", HTTP_GET, webServerMeasureCurrentGet);
+  // Make it possible to query this device from Prometheus/OpenMetrics.
+  webServer.on("/metrics", HTTP_GET, webServerMetricsGet);
   webServer.begin();
   MDNS.addService("http", "tcp", 80);
+  if (agServer.getModelName().isEmpty() != true) {
+    MDNS.addServiceTxt("http", "_tcp", "model", agServer.getModelName());
+    mdnsModelName = agServer.getModelName();
+  }
+  MDNS.addServiceTxt("http", "_tcp", "serialno", getDevId());
+  MDNS.addServiceTxt("http", "_tcp", "fw_ver", ag.getVersion());
 
   if (xTaskCreate(webServerHandler, "webserver", 1024 * 4, NULL, 5, NULL) !=
       pdTRUE) {
@@ -949,7 +1119,7 @@ static String getServerSyncData(bool localServer) {
       root["tvoc_raw"] = tvocRawIndex;
     }
     if (noxIndex >= 0) {
-      root["noxIndex"] = noxIndex;
+      root["nox_index"] = noxIndex;
     }
   }
   if (hasSensorSHT) {
@@ -965,6 +1135,89 @@ static String getServerSyncData(bool localServer) {
   return JSON.stringify(root);
 }
 
+static void createMqttTask(void) {
+  if (mqttTask) {
+    vTaskDelete(mqttTask);
+    mqttTask = NULL;
+  }
+
+  xTaskCreate(
+      [](void *param) {
+        for (;;) {
+          delay(MQTT_SYNC_INTERVAL);
+
+          /** Send data */
+          if (agMqtt.isConnected()) {
+            String syncData = getServerSyncData(false);
+            String topic = "airgradient/readings/" + getDevId();
+            if (agMqtt.publish(topic.c_str(), syncData.c_str(),
+                               syncData.length())) {
+              Serial.println("Mqtt sync success");
+            } else {
+              Serial.println("Mqtt sync failure");
+            }
+          }
+        }
+      },
+      "mqtt-task", 1024 * 3, NULL, 6, &mqttTask);
+
+  if (mqttTask == NULL) {
+    Serial.println("Creat mqttTask failed");
+  }
+}
+
+static void factoryConfigReset(void) {
+  if (ag.button.getState() == ag.button.BUTTON_PRESSED) {
+    if (factoryBtnPressTime == 0) {
+      factoryBtnPressTime = millis();
+    } else {
+      uint32_t ms = (uint32_t)(millis() - factoryBtnPressTime);
+      if (ms >= 2000) {
+        // Show display message: For factory keep for x seconds
+        // Count display.
+        displayShowText("Factory reset", "keep pressed", "for 8 sec");
+
+        int count = 7;
+        while (ag.button.getState() == ag.button.BUTTON_PRESSED) {
+          delay(1000);
+          displayShowText("Factory reset", "keep pressed",
+                          "for " + String(count) + " sec");
+          count--;
+          // ms = (uint32_t)(millis() - factoryBtnPressTime);
+          if (count == 0) {
+            /** Stop MQTT task first */
+            if (mqttTask) {
+              vTaskDelete(mqttTask);
+              mqttTask = NULL;
+            }
+
+            /** Disconnect WIFI */
+            WiFi.disconnect();
+            wifiManager.resetSettings();
+
+            /** Reset local config */
+            agServer.defaultReset();
+
+            displayShowText("Factory reset", "successful", "");
+            delay(3000);
+            ESP.restart();
+          }
+        }
+
+        /** Show current content cause reset ignore */
+        factoryBtnPressTime = 0;
+        appDispHandler();
+      }
+    }
+  } else {
+    if (factoryBtnPressTime != 0) {
+      /** Restore last display content */
+      appDispHandler();
+    }
+    factoryBtnPressTime = 0;
+  }
+}
+
 static void sendPing() {
   JSONVar root;
   root["wifi"] = WiFi.RSSI();
@@ -1287,20 +1540,80 @@ static String getNormalizedMac() {
 }
 
 static void setRGBledCO2color(int co2Value) {
-  if (co2Value >= 300 && co2Value < 800) {
+  if (co2Value <= 400) {
-    setRGBledColor('g');
+    /** G; 1 */
-  } else if (co2Value >= 800 && co2Value < 1000) {
+    ag.ledBar.setColor(0, 255, 0, ag.ledBar.getNumberOfLeds() - 1);
-    setRGBledColor('y');
+  } else if (co2Value <= 700) {
-  } else if (co2Value >= 1000 && co2Value < 1500) {
+    /** GG; 2 */
-    setRGBledColor('o');
+    ag.ledBar.setColor(0, 255, 0, ag.ledBar.getNumberOfLeds() - 1);
-  } else if (co2Value >= 1500 && co2Value < 2000) {
+    ag.ledBar.setColor(0, 255, 0, ag.ledBar.getNumberOfLeds() - 2);
-    setRGBledColor('r');
+  } else if (co2Value <= 1000) {
-  } else if (co2Value >= 2000 && co2Value < 3000) {
+    /** YYY; 3 */
-    setRGBledColor('p');
+    ag.ledBar.setColor(255, 255, 0, ag.ledBar.getNumberOfLeds() - 1);
-  } else if (co2Value >= 3000 && co2Value < 10000) {
+    ag.ledBar.setColor(255, 255, 0, ag.ledBar.getNumberOfLeds() - 2);
-    setRGBledColor('z');
+    ag.ledBar.setColor(255, 255, 0, ag.ledBar.getNumberOfLeds() - 3);
-  } else {
+  } else if (co2Value <= 1333) {
-    setRGBledColor('n');
+    /** YYYY; 4 */
+    ag.ledBar.setColor(255, 255, 0, ag.ledBar.getNumberOfLeds() - 1);
+    ag.ledBar.setColor(255, 255, 0, ag.ledBar.getNumberOfLeds() - 2);
+    ag.ledBar.setColor(255, 255, 0, ag.ledBar.getNumberOfLeds() - 3);
+    ag.ledBar.setColor(255, 255, 0, ag.ledBar.getNumberOfLeds() - 4);
+  } else if (co2Value <= 1666) {
+    /** YYYYY; 5 */
+    ag.ledBar.setColor(255, 255, 0, ag.ledBar.getNumberOfLeds() - 1);
+    ag.ledBar.setColor(255, 255, 0, ag.ledBar.getNumberOfLeds() - 2);
+    ag.ledBar.setColor(255, 255, 0, ag.ledBar.getNumberOfLeds() - 3);
+    ag.ledBar.setColor(255, 255, 0, ag.ledBar.getNumberOfLeds() - 4);
+    ag.ledBar.setColor(255, 255, 0, ag.ledBar.getNumberOfLeds() - 5);
+  } else if (co2Value <= 2000) {
+    /** RRRRRR; 6 */
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 1);
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 2);
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 3);
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 4);
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 5);
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 6);
+  } else if (co2Value <= 2666) {
+    /** RRRRRRR; 7 */
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 1);
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 2);
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 3);
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 4);
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 5);
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 6);
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 7);
+  } else if (co2Value <= 3333) {
+    /** RRRRRRRR; 8 */
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 1);
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 2);
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 3);
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 4);
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 5);
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 6);
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 7);
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 8);
+  } else if (co2Value <= 4000) {
+    /** RRRRRRRRR; 9 */
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 1);
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 2);
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 3);
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 4);
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 5);
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 6);
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 7);
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 8);
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 9);
+  } else { /** > 4000 */
+    /* PRPRPRPRP; 9 */
+    ag.ledBar.setColor(153, 153, 0, ag.ledBar.getNumberOfLeds() - 1);
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 2);
+    ag.ledBar.setColor(153, 153, 0, ag.ledBar.getNumberOfLeds() - 3);
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 4);
+    ag.ledBar.setColor(153, 153, 0, ag.ledBar.getNumberOfLeds() - 5);
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 6);
+    ag.ledBar.setColor(153, 153, 0, ag.ledBar.getNumberOfLeds() - 7);
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 8);
+    ag.ledBar.setColor(153, 153, 0, ag.ledBar.getNumberOfLeds() - 9);
   }
 }
 
@@ -1415,8 +1728,8 @@ static void failedHandler(String msg) {
 /**
  * @brief Send data to server
  */
-static void serverConfigPoll(void) {
+static void updateServerConfiguration(void) {
-  if (agServer.pollServerConfig(getDevId())) {
+  if (agServer.fetchServerConfiguration(getDevId())) {
     if (agServer.isCo2Calib()) {
       if (hasSensorS8) {
         co2Calibration();
@@ -1458,12 +1771,23 @@ static void serverConfigPoll(void) {
     String mqttUri = agServer.getMqttBroker();
     if (mqttUri != agMqtt.getUri()) {
       agMqtt.end();
+
+      if (mqttTask != NULL) {
+        vTaskDelete(mqttTask);
+        mqttTask = NULL;
+      }
       if (agMqtt.begin(mqttUri)) {
         Serial.println("Connect to new mqtt broker success");
+        createMqttTask();
       } else {
         Serial.println("Connect to new mqtt broker failed");
       }
     }
+
+    if (mdnsModelName != agServer.getModelName()) {
+      MDNS.addServiceTxt("http", "_tcp", "model", agServer.getModelName());
+      mdnsModelName = agServer.getModelName();
+    }
   }
 }
 
@@ -1506,18 +1830,81 @@ static void co2Calibration(void) {
  * @param pm25Value PMS2.5 value
  */
 static void setRGBledPMcolor(int pm25Value) {
-  if (pm25Value >= 0 && pm25Value < 10)
+  if (pm25Value <= 5) {
-    setRGBledColor('g');
+    /** G; 1 */
-  if (pm25Value >= 10 && pm25Value < 35)
+    ag.ledBar.setColor(0, 255, 0, ag.ledBar.getNumberOfLeds() - 1);
-    setRGBledColor('y');
+  } else if (pm25Value <= 10) {
-  if (pm25Value >= 35 && pm25Value < 55)
+    /** GG; 2 */
-    setRGBledColor('o');
+    ag.ledBar.setColor(0, 255, 0, ag.ledBar.getNumberOfLeds() - 1);
-  if (pm25Value >= 55 && pm25Value < 150)
+    ag.ledBar.setColor(0, 255, 0, ag.ledBar.getNumberOfLeds() - 2);
-    setRGBledColor('r');
+  } else if (pm25Value <= 20) {
-  if (pm25Value >= 150 && pm25Value < 250)
+    /** YYY; 3 */
-    setRGBledColor('p');
+    ag.ledBar.setColor(255, 255, 0, ag.ledBar.getNumberOfLeds() - 1);
-  if (pm25Value >= 250 && pm25Value < 1000)
+    ag.ledBar.setColor(255, 255, 0, ag.ledBar.getNumberOfLeds() - 2);
-    setRGBledColor('p');
+    ag.ledBar.setColor(255, 255, 0, ag.ledBar.getNumberOfLeds() - 3);
+  } else if (pm25Value <= 35) {
+    /** YYYY; 4 */
+    ag.ledBar.setColor(255, 255, 0, ag.ledBar.getNumberOfLeds() - 1);
+    ag.ledBar.setColor(255, 255, 0, ag.ledBar.getNumberOfLeds() - 2);
+    ag.ledBar.setColor(255, 255, 0, ag.ledBar.getNumberOfLeds() - 3);
+    ag.ledBar.setColor(255, 255, 0, ag.ledBar.getNumberOfLeds() - 4);
+  } else if (pm25Value <= 45) {
+    /** YYYYY; 5 */
+    ag.ledBar.setColor(255, 255, 0, ag.ledBar.getNumberOfLeds() - 1);
+    ag.ledBar.setColor(255, 255, 0, ag.ledBar.getNumberOfLeds() - 2);
+    ag.ledBar.setColor(255, 255, 0, ag.ledBar.getNumberOfLeds() - 3);
+    ag.ledBar.setColor(255, 255, 0, ag.ledBar.getNumberOfLeds() - 4);
+    ag.ledBar.setColor(255, 255, 0, ag.ledBar.getNumberOfLeds() - 5);
+  } else if (pm25Value <= 55) {
+    /** RRRRRR; 6 */
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 1);
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 2);
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 3);
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 4);
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 5);
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 6);
+  } else if (pm25Value <= 65) {
+    /** RRRRRRR; 7 */
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 1);
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 2);
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 3);
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 4);
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 5);
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 6);
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 7);
+  } else if (pm25Value <= 150) {
+    /** RRRRRRRR; 8 */
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 1);
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 2);
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 3);
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 4);
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 5);
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 6);
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 7);
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 8);
+  } else if (pm25Value <= 250) {
+    /** RRRRRRRRR; 9 */
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 1);
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 2);
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 3);
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 4);
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 5);
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 6);
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 7);
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 8);
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 9);
+  } else { /** > 250 */
+    /* PRPRPRPRP; 9 */
+    ag.ledBar.setColor(153, 153, 0, ag.ledBar.getNumberOfLeds() - 1);
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 2);
+    ag.ledBar.setColor(153, 153, 0, ag.ledBar.getNumberOfLeds() - 3);
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 4);
+    ag.ledBar.setColor(153, 153, 0, ag.ledBar.getNumberOfLeds() - 5);
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 6);
+    ag.ledBar.setColor(153, 153, 0, ag.ledBar.getNumberOfLeds() - 7);
+    ag.ledBar.setColor(255, 0, 0, ag.ledBar.getNumberOfLeds() - 8);
+    ag.ledBar.setColor(153, 153, 0, ag.ledBar.getNumberOfLeds() - 9);
+  }
 }
 
 static void singleLedAnimation(uint8_t r, uint8_t g, uint8_t b) {
@@ -1785,8 +2172,10 @@ static void updateWiFiConnect(void) {
  * @brief APP display and LED handler
  *
  */
-static void updateDispLedBar(void) {
+static void displayAndLedBarUpdate(void) {
-  appDispHandler();
+  if (factoryBtnPressTime == 0) {
+    appDispHandler();
+  }
   appLedHandler();
 }
 
@@ -1794,7 +2183,7 @@ static void updateDispLedBar(void) {
  * @brief Update tvocIndexindex
  *
  */
-static void tvocPoll(void) {
+static void tvocUpdate(void) {
   tvocIndex = ag.sgp41.getTvocIndex();
   tvocRawIndex = ag.sgp41.getTvocRaw();
   noxIndex = ag.sgp41.getNoxIndex();
@@ -1809,7 +2198,7 @@ static void tvocPoll(void) {
  * @brief Update PMS data
  *
  */
-static void pmPoll(void) {
+static void pmUpdate(void) {
   if (ag.pms5003.readData()) {
     pm01 = ag.pms5003.getPm01Ae();
     pm25 = ag.pms5003.getPm25Ae();
@@ -1844,21 +2233,13 @@ static void sendDataToServer(void) {
     resetWatchdog();
   }
 
-  if (agMqtt.isConnected()) {
-    String topic = "airgradient/readings/" + getDevId();
-    if (agMqtt.publish(topic.c_str(), syncData.c_str(), syncData.length())) {
-      Serial.println("Mqtt sync success");
-    } else {
-      Serial.println("Mqtt sync failure");
-    }
-  }
   bootCount++;
 }
 
 /**
  * @brief Update temperature and humidity value
  */
-static void tempHumPoll(void) {
+static void tempHumUpdate(void) {
   if (ag.sht.measure()) {
 
     temp = ag.sht.getTemperature();
@@ -1873,10 +2254,6 @@ static void tempHumPoll(void) {
 
 static void mqtt_event_handler(void *handler_args, esp_event_base_t base,
                                int32_t event_id, void *event_data) {
-
-  ESP_LOGD(TAG,
-           "Event dispatched from event loop base=%s, event_id=%" PRIi32 "",
-           base, event_id);
   esp_mqtt_event_handle_t event = (esp_mqtt_event_handle_t)event_data;
   esp_mqtt_client_handle_t client = event->client;
   int msg_id;

examples/Open_Air/Open_Air.ino

@@ -77,7 +77,7 @@ enum {
   APP_SM_SERVER_LOST, /** Connected to WiFi network but the server cannot be
                          reached through the internet, e.g. blocked by firewall
                        */
-  APP_SM_SENSOR_CONFIG_FAILED, /** Server is reachable but there is some
+  APP_SM_SENSOR_CONFIG_FAILED, /** Server is reachabFirmware nodele but there is some
                                   configuration issue to be fixed on the server
                                   side */
   APP_SM_NORMAL,
@@ -85,17 +85,20 @@ enum {
 
 #define LED_FAST_BLINK_DELAY 250             /** ms */
 #define LED_SLOW_BLINK_DELAY 1000            /** ms */
+#define LED_SHORT_BLINK_DELAY 500            /** ms */
+#define LED_LONG_BLINK_DELAY 2000            /** ms */
 #define WIFI_CONNECT_COUNTDOWN_MAX 180       /** sec */
 #define WIFI_CONNECT_RETRY_MS 10000          /** ms */
 #define LED_BAR_COUNT_INIT_VALUE (-1)        /** */
 #define LED_BAR_ANIMATION_PERIOD 100         /** ms */
 #define DISP_UPDATE_INTERVAL 5000            /** ms */
-#define SERVER_CONFIG_UPDATE_INTERVAL 30000  /** ms */
+#define SERVER_CONFIG_UPDATE_INTERVAL 15000  /** ms */
 #define SERVER_SYNC_INTERVAL 60000           /** ms */
+#define MQTT_SYNC_INTERVAL 60000             /** ms */
 #define SENSOR_CO2_CALIB_COUNTDOWN_MAX 5     /** sec */
 #define SENSOR_TVOC_UPDATE_INTERVAL 1000     /** ms */
-#define SENSOR_CO2_UPDATE_INTERVAL 5000      /** ms */
+#define SENSOR_CO2_UPDATE_INTERVAL 4000      /** ms */
-#define SENSOR_PM_UPDATE_INTERVAL 5000       /** ms */
+#define SENSOR_PM_UPDATE_INTERVAL 2000       /** ms */
 #define SENSOR_TEMP_HUM_UPDATE_INTERVAL 5000 /** ms */
 #define DISPLAY_DELAY_SHOW_CONTENT_MS 2000   /** ms */
 #define WIFI_HOTSPOT_PASSWORD_DEFAULT                                          \
@@ -152,6 +155,19 @@ public:
     loadConfig();
   }
 
+  /**
+   * @brief Reset local config into default value.
+   *
+   */
+  void defaultReset(void) {
+    config.inF = false;
+    config.inUSAQI = false;
+    memset(config.models, 0, sizeof(config.models));
+    memset(config.mqttBrokers, 0, sizeof(config.mqttBrokers));
+    config.useRGBLedBar = UseLedBarOff;
+    saveConfig();
+  }
+
   /**
    * @brief Get server configuration
    *
@@ -159,7 +175,7 @@ public:
    * @return true Success
    * @return false Failure
    */
-  bool pollServerConfig(String id) {
+  bool fetchServerConfiguration(String id) {
     String uri =
         "http://hw.airgradient.com/sensors/airgradient:" + id + "/one/config";
 
@@ -631,6 +647,7 @@ public:
   int connectionFailedCount(void) { return connectFailedCount; }
 };
 AgMqtt agMqtt;
+static TaskHandle_t mqttTask = NULL;
 
 /** Create airgradient instance for 'OPEN_AIR_OUTDOOR' board */
 AirGradient ag(OPEN_AIR_OUTDOOR);
@@ -692,25 +709,30 @@ void failedHandler(String msg);
 void co2Calibration(void);
 static String getDevId(void);
 static void updateWiFiConnect(void);
-static void tvocPoll(void);
+static void tvocUpdate(void);
-static void pmPoll(void);
+static void pmUpdate(void);
 static void sendDataToServer(void);
-static void co2Poll(void);
+static void co2Update(void);
-static void serverConfigPoll(void);
+static void updateServerConfiguration(void);
 static const char *getFwMode(int mode);
 static void showNr(void);
 static void webServerInit(void);
 static String getServerSyncData(bool localServer);
+static void createMqttTask(void);
+static void factoryConfigReset(void);
 
 bool hasSensorS8 = true;
 bool hasSensorPMS1 = true;
 bool hasSensorPMS2 = true;
 bool hasSensorSGP = true;
-AgSchedule configSchedule(SERVER_CONFIG_UPDATE_INTERVAL, serverConfigPoll);
+uint32_t factoryBtnPressTime = 0;
+String mdnsModelName = "";
+AgSchedule configSchedule(SERVER_CONFIG_UPDATE_INTERVAL,
+                          updateServerConfiguration);
 AgSchedule serverSchedule(SERVER_SYNC_INTERVAL, sendDataToServer);
-AgSchedule co2Schedule(SENSOR_CO2_UPDATE_INTERVAL, co2Poll);
+AgSchedule co2Schedule(SENSOR_CO2_UPDATE_INTERVAL, co2Update);
-AgSchedule pmsSchedule(SENSOR_PM_UPDATE_INTERVAL, pmPoll);
+AgSchedule pmsSchedule(SENSOR_PM_UPDATE_INTERVAL, pmUpdate);
-AgSchedule tvocSchedule(SENSOR_TVOC_UPDATE_INTERVAL, tvocPoll);
+AgSchedule tvocSchedule(SENSOR_TVOC_UPDATE_INTERVAL, tvocUpdate);
 
 void setup() {
   EEPROM.begin(512);
@@ -734,6 +756,7 @@ void setup() {
     /** MQTT init */
     if (agServer.getMqttBroker().isEmpty() == false) {
       if (agMqtt.begin(agServer.getMqttBroker())) {
+        createMqttTask();
         Serial.println("MQTT client init success");
       } else {
         Serial.println("MQTT client init failure");
@@ -743,7 +766,7 @@ void setup() {
     wifiHasConfig = true;
     sendPing();
 
-    agServer.pollServerConfig(getDevId());
+    agServer.fetchServerConfiguration(getDevId());
     if (agServer.isConfigFailed()) {
       ledSmHandler(APP_SM_WIFI_OK_SERVER_OK_SENSOR_CONFIG_FAILED);
       delay(DISPLAY_DELAY_SHOW_CONTENT_MS);
@@ -773,6 +796,8 @@ void loop() {
     }
   }
   updateWiFiConnect();
+
+  factoryConfigReset();
 }
 
 void sendPing() {
@@ -793,14 +818,6 @@ static void sendDataToServer(void) {
     resetWatchdog();
   }
 
-  if (agMqtt.isConnected()) {
-    String topic = "airgradient/readings/" + getDevId();
-    if (agMqtt.publish(topic.c_str(), syncData.c_str(), syncData.length())) {
-      Serial.println("Mqtt sync success");
-    } else {
-      Serial.println("Mqtt sync failure");
-    }
-  }
   loopCount++;
 }
 
@@ -889,6 +906,8 @@ void boardInit(void) {
     failedHandler("Init I2C failed");
   }
 
+  Serial.println("Firmware Version: "+ag.getVersion());
+
   ag.watchdog.begin();
   ag.button.begin();
   ag.statusLed.begin();
@@ -936,7 +955,7 @@ void boardInit(void) {
     }
   }
 
-  Serial.printf("Firmware node: %s\r\n", getFwMode(fw_mode));
+  Serial.printf("Firmware Mode: %s\r\n", getFwMode(fw_mode));
 }
 
 void failedHandler(String msg) {
@@ -996,7 +1015,7 @@ static void updateWiFiConnect(void) {
  * @brief Update tvocIndexindex
  *
  */
-static void tvocPoll(void) {
+static void tvocUpdate(void) {
   tvocIndex = ag.sgp41.getTvocIndex();
   tvocRawIndex = ag.sgp41.getTvocRaw();
   noxIndex = ag.sgp41.getNoxIndex();
@@ -1011,7 +1030,7 @@ static void tvocPoll(void) {
  * @brief Update PMS data
  *
  */
-static void pmPoll(void) {
+static void pmUpdate(void) {
   bool pmsResult_1 = false;
   bool pmsResult_2 = false;
   if (hasSensorPMS1 && ag.pms5003t_1.readData()) {
@@ -1119,13 +1138,13 @@ static void pmPoll(void) {
   }
 }
 
-static void co2Poll(void) {
+static void co2Update(void) {
   co2Ppm = ag.s8.getCo2();
   Serial.printf("CO2 index: %d\r\n", co2Ppm);
 }
 
-static void serverConfigPoll(void) {
+static void updateServerConfiguration(void) {
-  if (agServer.pollServerConfig(getDevId())) {
+  if (agServer.fetchServerConfiguration(getDevId())) {
     /** Only support CO2 S8 sensor on FW_MODE_PST */
     if (fw_mode == FW_MODE_PST) {
       if (agServer.isCo2Calib()) {
@@ -1162,12 +1181,22 @@ static void serverConfigPoll(void) {
     String mqttUri = agServer.getMqttBroker();
     if (mqttUri != agMqtt.getUri()) {
       agMqtt.end();
+      if (mqttTask != NULL) {
+        vTaskDelete(mqttTask);
+        mqttTask = NULL;
+      }
       if (agMqtt.begin(mqttUri)) {
         Serial.println("Connect to new mqtt broker success");
+        createMqttTask();
       } else {
         Serial.println("Connect to new mqtt broker failed");
       }
     }
+
+    if (mdnsModelName != agServer.getModelName()) {
+      MDNS.addServiceTxt("http", "_tcp", "model", agServer.getModelName());
+      mdnsModelName = agServer.getModelName();
+    }
   }
 }
 
@@ -1310,6 +1339,12 @@ static void webServerInit(void) {
   webServer.on("/measures/current", HTTP_GET, webServerMeasureCurrentGet);
   webServer.begin();
   MDNS.addService("http", "tcp", 80);
+  if (mdnsModelName != agServer.getModelName()) {
+    MDNS.addServiceTxt("http", "_tcp", "model", agServer.getModelName());
+    mdnsModelName = agServer.getModelName();
+  }
+  MDNS.addServiceTxt("http", "_tcp", "serialno", getDevId());
+  MDNS.addServiceTxt("http", "_tcp", "fw_ver", ag.getVersion());
 
   if (xTaskCreate(webServerHandler, "webserver", 1024 * 4, NULL, 5, NULL) !=
       pdTRUE) {
@@ -1376,13 +1411,13 @@ static String getServerSyncData(bool localServer) {
 
   if ((fw_mode == FW_MODE_PPT) || (fw_mode == FW_MODE_PST)) {
     if (hasSensorSGP) {
-      if (tvocIndex > 0) {
+      if (tvocIndex >= 0) {
         root["tvoc_index"] = tvocIndex;
       }
       if (tvocRawIndex >= 0) {
         root["tvoc_raw"] = tvocRawIndex;
       }
-      if (noxIndex > 0) {
+      if (noxIndex >= 0) {
         root["nox_index"] = noxIndex;
       }
     }
@@ -1418,12 +1453,96 @@ static String getServerSyncData(bool localServer) {
   return JSON.stringify(root);
 }
 
+static void createMqttTask(void) {
+  if (mqttTask) {
+    vTaskDelete(mqttTask);
+    mqttTask = NULL;
+  }
+
+  xTaskCreate(
+      [](void *param) {
+        for (;;) {
+          delay(MQTT_SYNC_INTERVAL);
+
+          /** Send data */
+          if (agMqtt.isConnected()) {
+            String syncData = getServerSyncData(false);
+            String topic = "airgradient/readings/" + getDevId();
+            if (agMqtt.publish(topic.c_str(), syncData.c_str(),
+                               syncData.length())) {
+              Serial.println("Mqtt sync success");
+            } else {
+              Serial.println("Mqtt sync failure");
+            }
+          }
+        }
+      },
+      "mqtt-task", 1024 * 3, NULL, 6, &mqttTask);
+
+  if (mqttTask == NULL) {
+    Serial.println("Creat mqttTask failed");
+  }
+}
+
+static void factoryConfigReset(void) {
+  if (ag.button.getState() == ag.button.BUTTON_PRESSED) {
+    if (factoryBtnPressTime == 0) {
+      factoryBtnPressTime = millis();
+    } else {
+      uint32_t ms = (uint32_t)(millis() - factoryBtnPressTime);
+      if (ms >= 2000) {
+        Serial.println("Factory reset keep presssed for 8 sec");
+
+        uint32_t ledTime = millis();
+        bool ledOn = true;
+        ag.statusLed.setOn();
+        while (ag.button.getState() == ag.button.BUTTON_PRESSED) {
+          ms = (uint32_t)(millis() - ledTime);
+          if (ms >= LED_SHORT_BLINK_DELAY) {
+            ledTime = millis();
+            ag.statusLed.setToggle();
+          }
+
+          ms = (uint32_t)(millis() - factoryBtnPressTime);
+          if (ms > 10000) {
+            ag.statusLed.setOff();
+
+            /** Stop MQTT task first */
+            if (mqttTask) {
+              vTaskDelete(mqttTask);
+              mqttTask = NULL;
+            }
+
+            /** Disconnect WIFI */
+            WiFi.disconnect();
+            wifiManager.resetSettings();
+
+            /** Reset local config */
+            agServer.defaultReset();
+
+            Serial.println("Factory successful");
+            ledBlinkDelay(LED_LONG_BLINK_DELAY);
+            ledBlinkDelay(LED_LONG_BLINK_DELAY);
+            ledBlinkDelay(LED_LONG_BLINK_DELAY);
+            ESP.restart();
+          }
+        }
+
+        /** Show current content cause reset ignore */
+        factoryBtnPressTime = 0;
+        ag.statusLed.setOff();
+      }
+    }
+  } else {
+    if (factoryBtnPressTime != 0) {
+      ag.statusLed.setOff();
+    }
+    factoryBtnPressTime = 0;
+  }
+}
+
 static void mqtt_event_handler(void *handler_args, esp_event_base_t base,
                                int32_t event_id, void *event_data) {
-
-  ESP_LOGD(TAG,
-           "Event dispatched from event loop base=%s, event_id=%" PRIi32 "",
-           base, event_id);
   esp_mqtt_event_handle_t event = (esp_mqtt_event_handle_t)event_data;
   esp_mqtt_client_handle_t client = event->client;
   int msg_id;

library.properties

@@ -1,5 +1,5 @@
 name=AirGradient Air Quality Sensor
-version=3.0.4
+version=3.0.6
 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/AirGradient.cpp

@@ -1,6 +1,6 @@
 #include "AirGradient.h"
 
-#define AG_LIB_VER "3.0.4"
+#define AG_LIB_VER "3.0.6"
 
 AirGradient::AirGradient(BoardType type)
     : pms5003(type), pms5003t_1(type), pms5003t_2(type), s8(type), sgp41(type),
@@ -40,3 +40,7 @@ BoardType AirGradient::getBoardType(void) { return boardType; }
 double AirGradient::round2(double value) {
   return (int)(value * 100 + 0.5) / 100.0;
 }
+
+String AirGradient::getBoardName(void) {
+  return String(getBoardDefName(boardType));
+}

src/AirGradient.h

@@ -107,6 +107,13 @@ public:
    */
   String getVersion(void);
 
+  /**
+   * @brief Get the Board Name object
+   * 
+   * @return String 
+   */
+  String getBoardName(void);
+
   /**
    * @brief Round double value with for 2 decimal
    * 

src/Display/Display.h

@@ -1,7 +1,7 @@
 #ifndef _AIR_GRADIENT_OLED_H_
 #define _AIR_GRADIENT_OLED_H_
 
-#include "../main/BoardDef.h"
+#include "../Main/BoardDef.h"
 #include <Arduino.h>
 #include <Wire.h>
 

src/Main/BoardDef.cpp

@@ -335,6 +335,19 @@ const BoardDef *getBoardDef(BoardType def) {
   return &bsps[def];
 }
 
+/**
+ * @brief Get the Board Name
+ * 
+ * @param type BoarType
+ * @return const char* 
+ */
+const char *getBoardDefName(BoardType type) {
+  if (type >= _BOARD_MAX) {
+    return NULL;
+  }
+  return bsps[type].name;
+}
+
 #if defined(ESP8266)
 #define bspPrintf(c, ...)                                                      \
   if (_debug != nullptr) {                                                     \

src/Main/BoardDef.h

@@ -76,13 +76,14 @@ struct BoardDef {
 
   /** Watchdog */
   struct {
-    const uint8_t resetPin;
+    const int resetPin;
     const bool supported;
   } WDG;
   const char *name;
 };
 
 const BoardDef *getBoardDef(BoardType def);
+const char *getBoardDefName(BoardType type);
 void printBoardDef(Stream *_debug);
 
 #endif /** _AIR_GRADIENT_BOARD_DEF_H_ */

src/PMS/PMS5003.cpp

@@ -1,5 +1,6 @@
 #include "PMS5003.h"
 #include "Arduino.h"
+#include "PMSUtils.h"
 
 #if defined(ESP8266)
 #include <SoftwareSerial.h>
@@ -63,7 +64,8 @@ bool PMS5003::begin(void) {
 
 #if defined(ESP8266)
   bsp->Pms5003.uart_tx_pin;
-  SoftwareSerial *uart = new SoftwareSerial(bsp->Pms5003.uart_tx_pin, bsp->Pms5003.uart_rx_pin);
+  SoftwareSerial *uart =
+      new SoftwareSerial(bsp->Pms5003.uart_tx_pin, bsp->Pms5003.uart_rx_pin);
   uart->begin(9600);
   if (pms.begin(uart) == false) {
     AgLog("PMS failed");
@@ -81,31 +83,6 @@ bool PMS5003::begin(void) {
   return true;
 }
 
-/**
- * @brief Convert PM2.5 to US AQI
- *
- * @param pm02
- * @return int
- */
-int PMS5003::pm25ToAQI(int pm02) {
-  if (pm02 <= 12.0)
-    return ((50 - 0) / (12.0 - .0) * (pm02 - .0) + 0);
-  else if (pm02 <= 35.4)
-    return ((100 - 50) / (35.4 - 12.0) * (pm02 - 12.0) + 50);
-  else if (pm02 <= 55.4)
-    return ((150 - 100) / (55.4 - 35.4) * (pm02 - 35.4) + 100);
-  else if (pm02 <= 150.4)
-    return ((200 - 150) / (150.4 - 55.4) * (pm02 - 55.4) + 150);
-  else if (pm02 <= 250.4)
-    return ((300 - 200) / (250.4 - 150.4) * (pm02 - 150.4) + 200);
-  else if (pm02 <= 350.4)
-    return ((400 - 300) / (350.4 - 250.4) * (pm02 - 250.4) + 300);
-  else if (pm02 <= 500.4)
-    return ((500 - 400) / (500.4 - 350.4) * (pm02 - 350.4) + 400);
-  else
-    return 500;
-}
-
 /**
  * @brief Read all package data then call to @ref getPMxxx to get the target
  * data
@@ -155,7 +132,7 @@ int PMS5003::getPm03ParticleCount(void) { return pmsData.PM_RAW_0_3; }
  * @param pm25 PM2.5 index
  * @return int PM2.5 US AQI
  */
-int PMS5003::convertPm25ToUsAqi(int pm25) { return this->pm25ToAQI(pm25); }
+int PMS5003::convertPm25ToUsAqi(int pm25) { return pm25ToAQI(pm25); }
 
 /**
  * @brief Check device initialized or not

src/PMS/PMS5003.h

@@ -2,8 +2,8 @@
 #define _AIR_GRADIENT_PMS5003_H_
 
 #include "../Main/BoardDef.h"
-#include "Stream.h"
 #include "PMS.h"
+#include "Stream.h"
 
 /**
  * @brief The class define how to handle PMS5003 sensor bas on @ref PMS class
@@ -41,6 +41,5 @@ private:
 
   bool begin(void);
   bool isBegin(void);
-  int pm25ToAQI(int pm02);
 };
 #endif /** _AIR_GRADIENT_PMS5003_H_ */

src/PMS/PMS5003T.cpp

@@ -1,5 +1,6 @@
 #include "PMS5003T.h"
 #include "Arduino.h"
+#include "PMSUtils.h"
 
 #if defined(ESP8266)
 #include <SoftwareSerial.h>
@@ -105,31 +106,6 @@ bool PMS5003T::begin(void) {
   return true;
 }
 
-/**
- * @brief Convert PM2.5 to US AQI
- *
- * @param pm02
- * @return int
- */
-int PMS5003T::pm25ToAQI(int pm02) {
-  if (pm02 <= 12.0)
-    return ((50 - 0) / (12.0 - .0) * (pm02 - .0) + 0);
-  else if (pm02 <= 35.4)
-    return ((100 - 50) / (35.4 - 12.0) * (pm02 - 12.0) + 50);
-  else if (pm02 <= 55.4)
-    return ((150 - 100) / (55.4 - 35.4) * (pm02 - 35.4) + 100);
-  else if (pm02 <= 150.4)
-    return ((200 - 150) / (150.4 - 55.4) * (pm02 - 55.4) + 150);
-  else if (pm02 <= 250.4)
-    return ((300 - 200) / (250.4 - 150.4) * (pm02 - 150.4) + 200);
-  else if (pm02 <= 350.4)
-    return ((400 - 300) / (350.4 - 250.4) * (pm02 - 250.4) + 300);
-  else if (pm02 <= 500.4)
-    return ((500 - 400) / (500.4 - 350.4) * (pm02 - 350.4) + 400);
-  else
-    return 500;
-}
-
 /**
  * @brief Read all package data then call to @ref getPMxxx to get the target
  * data
@@ -179,7 +155,7 @@ int PMS5003T::getPm03ParticleCount(void) { return pmsData.PM_RAW_0_3; }
  * @param pm25 PM2.5 index
  * @return int PM2.5 US AQI
  */
-int PMS5003T::convertPm25ToUsAqi(int pm25) { return this->pm25ToAQI(pm25); }
+int PMS5003T::convertPm25ToUsAqi(int pm25) { return pm25ToAQI(pm25); }
 
 /**
  * @brief Get temperature, Must call this method after @ref readData() success
@@ -197,8 +173,8 @@ float PMS5003T::getTemperature(void) {
  * @return float Percent (%)
  */
 float PMS5003T::getRelativeHumidity(void) {
-  float temp = pmsData.AMB_HUM;
+  float hum = pmsData.AMB_HUM;
-  return temp / 10.0f;
+  return correctionRelativeHumidity(hum / 10.0f);
 }
 
 /**
@@ -234,3 +210,7 @@ void PMS5003T::end(void) {
 #endif
   AgLog("De-initialize");
 }
+
+float PMS5003T::correctionRelativeHumidity(float inHum) {
+  return inHum * 1.259 + 7.34;
+}

src/PMS/PMS5003T.h

@@ -1,10 +1,10 @@
 #ifndef _PMS5003T_H_
 #define _PMS5003T_H_
 
-#include <HardwareSerial.h>
 #include "../Main/BoardDef.h"
 #include "PMS.h"
 #include "Stream.h"
+#include <HardwareSerial.h>
 
 /**
  * @brief The class define how to handle PMS5003T sensor bas on @ref PMS class
@@ -42,11 +42,11 @@ private:
 #endif
 
   bool begin(void);
-  int pm25ToAQI(int pm02);
   PMS pms;
   PMS::DATA pmsData;
   bool isBegin(void);
   float correctionTemperature(float inTemp);
+  float correctionRelativeHumidity(float inHum);
 };
 
 #endif /** _PMS5003T_H_ */

src/PMS/PMSUtils.cpp

@@ -0,0 +1,26 @@
+#include "PMSUtils.h"
+
+/**
+ * @brief Convert PM2.5 to US AQI
+ *
+ * @param pm02
+ * @return int
+ */
+int pm25ToAQI(int pm02) {
+  if (pm02 <= 12.0)
+    return ((50 - 0) / (12.0 - .0) * (pm02 - .0) + 0);
+  else if (pm02 <= 35.4)
+    return ((100 - 50) / (35.4 - 12.0) * (pm02 - 12.0) + 50);
+  else if (pm02 <= 55.4)
+    return ((150 - 100) / (55.4 - 35.4) * (pm02 - 35.4) + 100);
+  else if (pm02 <= 150.4)
+    return ((200 - 150) / (150.4 - 55.4) * (pm02 - 55.4) + 150);
+  else if (pm02 <= 250.4)
+    return ((300 - 200) / (250.4 - 150.4) * (pm02 - 150.4) + 200);
+  else if (pm02 <= 350.4)
+    return ((400 - 300) / (350.4 - 250.4) * (pm02 - 250.4) + 300);
+  else if (pm02 <= 500.4)
+    return ((500 - 400) / (500.4 - 350.4) * (pm02 - 350.4) + 400);
+  else
+    return 500;
+}

src/PMS/PMSUtils.h

@@ -0,0 +1,6 @@
+#ifndef _PMS_UTILS_H_
+#define _PMS_UTILS_H_
+
+int pm25ToAQI(int pm02);
+
+#endif /** _PMS_UTILS_H_ */

src/S8/S8.h

@@ -1,7 +1,7 @@
 #ifndef _S8_H_
 #define _S8_H_
 
-#include "../main/BoardDef.h"
+#include "../Main/BoardDef.h"
 #include "Arduino.h"
 
 /**

src/Sgp41/Sgp41.h

@@ -1,7 +1,7 @@
 #ifndef _AIR_GRADIENT_SGP4X_H_
 #define _AIR_GRADIENT_SGP4X_H_
 
-#include "../main/BoardDef.h"
+#include "../Main/BoardDef.h"
 #include <Arduino.h>
 #include <Wire.h>
 

src/Sht/Sht.h

@@ -1,7 +1,7 @@
 #ifndef _SHT_H_
 #define _SHT_H_
 
-#include "../main/BoardDef.h"
+#include "../Main/BoardDef.h"
 #include <Arduino.h>
 #include <Wire.h>