mirror of
https://github.com/airgradienthq/arduino.git
synced 2025-07-20 20:22:08 +02:00
Optimize PMS sensor read data on active mode send each second
This commit is contained in:
Phat Nguyen
@ -288,6 +288,11 @@ void loop() {
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if (ag->isOne()) {
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if (configuration.hasSensorPMS1) {
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ag->pms5003.handle();
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static bool pmsConnected = false;
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if (pmsConnected != ag->pms5003.connected()) {
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pmsConnected = ag->pms5003.connected();
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Serial.printf("PMS sensor %s ", pmsConnected?"connected":"removed");
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}
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}
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} else {
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if (configuration.hasSensorPMS1) {
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@ -1009,7 +1014,7 @@ static void updateTvoc(void) {
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static void updatePm(void) {
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bool restart = false;
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if (ag->isOne()) {
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if (ag->pms5003.isFailed() == false) {
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if (ag->pms5003.connected()) {
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measurements.pm01_1 = ag->pms5003.getPm01Ae();
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measurements.pm25_1 = ag->pms5003.getPm25Ae();
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measurements.pm10_1 = ag->pms5003.getPm10Ae();
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@ -1038,7 +1043,7 @@ static void updatePm(void) {
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} else {
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bool pmsResult_1 = false;
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bool pmsResult_2 = false;
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if (configuration.hasSensorPMS1 && (ag->pms5003t_1.isFailed() == false)) {
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if (configuration.hasSensorPMS1 && ag->pms5003t_1.connected()) {
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measurements.pm01_1 = ag->pms5003t_1.getPm01Ae();
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measurements.pm25_1 = ag->pms5003t_1.getPm25Ae();
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measurements.pm10_1 = ag->pms5003t_1.getPm10Ae();
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@ -1081,7 +1086,7 @@ static void updatePm(void) {
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}
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}
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if (configuration.hasSensorPMS2 && (ag->pms5003t_2.isFailed() == false)) {
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if (configuration.hasSensorPMS2 && ag->pms5003t_2.connected()) {
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measurements.pm01_2 = ag->pms5003t_2.getPm01Ae();
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measurements.pm25_2 = ag->pms5003t_2.getPm25Ae();
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measurements.pm10_2 = ag->pms5003t_2.getPm10Ae();
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239
src/PMS/PMS.cpp
239
src/PMS/PMS.cpp
@ -8,146 +8,111 @@
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* @return true Sucecss
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* @return false Failure
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*/
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bool PMSBase::begin(Stream *stream) {
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this->stream = stream;
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failed = true;
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bool PMSBase::begin(HardwareSerial& serial) {
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failCount = 0;
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lastRead = 0; // To read buffer on handle without wait after 1.5sec
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this->stream->flush();
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_connected = false;
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// Run and check sensor data for 4sec
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while (1) {
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handle();
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if (failed == false) {
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return true;
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serial.flush();
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unsigned long lastInit = millis();
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while (true) {
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readPackage(serial);
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if (_connected) {
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break;
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}
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delay(1);
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uint32_t ms = (uint32_t)(millis() - lastRead);
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unsigned long ms = (unsigned long)(millis() - lastInit);
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if (ms >= 4000) {
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break;
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}
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}
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return false;
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return _connected;
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}
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/**
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* @brief Check and read sensor data then update variable.
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* Check result from method @isFailed before get value
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* @brief Read PMS package send to device each 1sec
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*
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* @param serial
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*/
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void PMSBase::handle() {
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uint32_t ms;
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if (lastRead == 0) {
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lastRead = millis();
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if (lastRead == 0) {
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lastRead = 1;
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}
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} else {
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ms = (uint32_t)(millis() - lastRead);
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/**
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* The PMS in Active mode sends an update data every 1 second. If we read
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* exactly every 1 sec then we may or may not get an update (depending on
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* timing tolerances). Hence we read every 2.5 seconds and expect 2 ..3
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* updates,
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*/
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if (ms < 2500) {
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return;
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}
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}
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bool result = false;
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char buf[32];
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int bufIndex;
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int step = 0;
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int len = 0;
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int bcount = 0;
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void PMSBase::readPackage(HardwareSerial& serial) {
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uint8_t delayCount = 0;
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while (serial.available()) {
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/** Get value */
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uint8_t value = (uint8_t)serial.read();
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while (stream->available()) {
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char value = stream->read();
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switch (step) {
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case 0: {
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/** Process receiving package... */
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switch (readBufferIndex) {
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case 0: /** Start byte 1 */
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if (value == 0x42) {
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step = 1;
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bufIndex = 0;
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buf[bufIndex++] = value;
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readBuffer[readBufferIndex++] = value;
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}
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break;
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}
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case 1: {
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case 1: /** Start byte 2 */
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if (value == 0x4d) {
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step = 2;
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buf[bufIndex++] = value;
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// Serial.println("Got 0x4d");
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readBuffer[readBufferIndex++] = value;
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} else {
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step = 0;
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readBufferIndex = 0;
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}
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break;
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}
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case 2: {
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buf[bufIndex++] = value;
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if (bufIndex >= 4) {
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len = toI16(&buf[2]);
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if (len != 28) {
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// Serial.printf("Got good bad len %d\r\n", len);
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len += 4;
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step = 3;
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} else {
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// Serial.println("Got good len");
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step = 4;
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case 2: /** Frame length */
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if (value == 0x00) {
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readBuffer[readBufferIndex++] = value;
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} else {
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readBufferIndex = 0;
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}
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break;
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case 3: /** Frame length */
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if (value == 0x1C) {
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readBuffer[readBufferIndex++] = value;
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} else {
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readBufferIndex = 0;
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}
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break;
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default: /** Data */
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readBuffer[readBufferIndex++] = value;
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/** Check that received full bufer */
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if (readBufferIndex >= sizeof(readBuffer)) {
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/** validata package */
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if (validate(readBuffer)) {
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_connected = true; /** Set connected status */
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/** Parse data */
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parse(readBuffer);
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/** Set last received package */
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lastPackage = millis();
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if (lastPackage == 0) {
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lastPackage = 1;
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}
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}
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/** Clear buffer index */
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readBufferIndex = 0;
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}
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break;
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}
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case 3: {
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bufIndex++;
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if (bufIndex >= len) {
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step = 0;
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// Serial.println("Bad lengh read all buffer");
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}
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break;
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}
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case 4: {
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buf[bufIndex++] = value;
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if (bufIndex >= 32) {
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result |= validate(buf);
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step = 0;
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// Serial.println("Got data");
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}
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break;
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}
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default:
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break;
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}
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// Reduce core panic: delay 1 ms each 32bytes data
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bcount++;
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if ((bcount % 32) == 0) {
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delay(1);
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/** Avoid task watchdog timer reset... */
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delayCount++;
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if(delayCount >= 32)
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{
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delay(1);
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}
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}
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if (result) {
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lastRead = millis();
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if (lastRead == 0) {
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lastRead = 1;
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}
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failed = false;
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} else {
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if (ms > 5000) {
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failed = true;
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/** Check that sensor removed */
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if (lastPackage) {
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unsigned long ms = (unsigned long)(millis() - lastPackage);
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if (ms >= 1500) {
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lastPackage = 0;
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_connected = false;
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}
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}
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}
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/**
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* @brief Check that PMS send is failed or disconnected
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*
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* @return true Failed
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* @return false No problem
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*/
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bool PMSBase::isFailed(void) { return failed; }
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/**
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* @brief Increate number of fail
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*
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@ -174,112 +139,114 @@ int PMSBase::getFailCountMax(void) { return failCountMax; }
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*
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* @return uint16_t
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*/
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uint16_t PMSBase::getRaw0_1(void) { return toU16(&package[4]); }
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uint16_t PMSBase::getRaw0_1(void) { return pms_raw0_1; }
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/**
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* @brief Read PMS 2.5 ug/m3 with CF = 1 PM estimates
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*
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* @return uint16_t
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*/
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uint16_t PMSBase::getRaw2_5(void) { return toU16(&package[6]); }
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uint16_t PMSBase::getRaw2_5(void) { return pms_raw2_5; }
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/**
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* @brief Read PMS 10 ug/m3 with CF = 1 PM estimates
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*
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* @return uint16_t
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*/
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uint16_t PMSBase::getRaw10(void) { return toU16(&package[8]); }
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uint16_t PMSBase::getRaw10(void) { return pms_raw10; }
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/**
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* @brief Read PMS 0.1 ug/m3
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*
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* @return uint16_t
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*/
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uint16_t PMSBase::getPM0_1(void) { return toU16(&package[10]); }
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uint16_t PMSBase::getPM0_1(void) { return pms_pm0_1; }
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/**
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* @brief Read PMS 2.5 ug/m3
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*
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* @return uint16_t
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*/
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uint16_t PMSBase::getPM2_5(void) { return toU16(&package[12]); }
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uint16_t PMSBase::getPM2_5(void) { return pms_pm2_5; }
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/**
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* @brief Read PMS 10 ug/m3
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*
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* @return uint16_t
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*/
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uint16_t PMSBase::getPM10(void) { return toU16(&package[14]); }
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uint16_t PMSBase::getPM10(void) { return pms_pm10; }
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/**
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* @brief Get numnber concentrations over 0.3 um/0.1L
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*
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* @return uint16_t
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*/
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uint16_t PMSBase::getCount0_3(void) { return toU16(&package[16]); }
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uint16_t PMSBase::getCount0_3(void) { return pms_count0_3; }
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/**
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* @brief Get numnber concentrations over 0.5 um/0.1L
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*
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* @return uint16_t
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*/
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uint16_t PMSBase::getCount0_5(void) { return toU16(&package[18]); }
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uint16_t PMSBase::getCount0_5(void) { return pms_count0_5; }
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/**
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* @brief Get numnber concentrations over 1.0 um/0.1L
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*
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* @return uint16_t
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*/
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uint16_t PMSBase::getCount1_0(void) { return toU16(&package[20]); }
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uint16_t PMSBase::getCount1_0(void) { return pms_count1_0; }
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/**
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* @brief Get numnber concentrations over 2.5 um/0.1L
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*
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* @return uint16_t
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*/
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uint16_t PMSBase::getCount2_5(void) { return toU16(&package[22]); }
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uint16_t PMSBase::getCount2_5(void) { return pms_count2_5; }
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bool PMSBase::connected(void) { return _connected; }
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/**
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* @brief Get numnber concentrations over 5.0 um/0.1L (only PMS5003)
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*
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* @return uint16_t
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*/
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uint16_t PMSBase::getCount5_0(void) { return toU16(&package[24]); }
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uint16_t PMSBase::getCount5_0(void) { return pms_count5_0; }
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/**
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* @brief Get numnber concentrations over 10.0 um/0.1L (only PMS5003)
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*
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* @return uint16_t
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*/
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uint16_t PMSBase::getCount10(void) { return toU16(&package[26]); }
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uint16_t PMSBase::getCount10(void) { return pms_count10; }
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/**
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* @brief Get temperature (only PMS5003T)
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*
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* @return uint16_t
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*/
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int16_t PMSBase::getTemp(void) { return toI16(&package[24]); }
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int16_t PMSBase::getTemp(void) { return pms_temp; }
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/**
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* @brief Get humidity (only PMS5003T)
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*
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* @return uint16_t
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*/
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uint16_t PMSBase::getHum(void) { return toU16(&package[26]); }
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uint16_t PMSBase::getHum(void) { return pms_hum; }
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/**
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* @brief Get firmware version code
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*
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* @return uint8_t
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*/
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uint8_t PMSBase::getFirmwareVersion(void) { return package[28]; }
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uint8_t PMSBase::getFirmwareVersion(void) { return pms_firmwareVersion; }
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/**
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* @brief Ge PMS5003 error code
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*
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* @return uint8_t
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*/
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uint8_t PMSBase::getErrorCode(void) { return package[29]; }
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uint8_t PMSBase::getErrorCode(void) { return pms_errorCode; }
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/**
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* @brief Convert PMS2.5 to US AQI unit
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@ -350,13 +317,13 @@ int PMSBase::compensate(int pm25, float humidity) {
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* @param buf bytes array (must be >= 2)
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* @return int16_t
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*/
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int16_t PMSBase::toI16(char *buf) {
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int16_t PMSBase::toI16(const uint8_t *buf) {
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int16_t value = buf[0];
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value = (value << 8) | buf[1];
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return value;
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}
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uint16_t PMSBase::toU16(char *buf) {
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uint16_t PMSBase::toU16(const uint8_t *buf) {
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uint16_t value = buf[0];
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value = (value << 8) | buf[1];
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return value;
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@ -369,16 +336,32 @@ uint16_t PMSBase::toU16(char *buf) {
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* @return true Success
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* @return false Failed
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*/
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bool PMSBase::validate(char *buf) {
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bool PMSBase::validate(const uint8_t *buf) {
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uint16_t sum = 0;
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for (int i = 0; i < 30; i++) {
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sum += buf[i];
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}
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if (sum == toU16(&buf[30])) {
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for (int i = 0; i < 32; i++) {
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package[i] = buf[i];
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}
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return true;
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}
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return false;
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}
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void PMSBase::parse(const uint8_t *buf) {
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pms_raw0_1 = toU16(&buf[4]);
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pms_raw2_5 = toU16(&buf[6]);
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pms_raw10 = toU16(&buf[8]);
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pms_pm0_1 = toU16(&buf[10]);
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pms_pm2_5 = toU16(&buf[12]);
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pms_pm10 = toU16(&buf[14]);
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pms_count0_3 = toU16(&buf[16]);
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pms_count0_5 = toU16(&buf[18]);
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pms_count1_0 = toU16(&buf[20]);
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pms_count2_5 = toU16(&buf[22]);
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pms_count5_0 = toU16(&buf[24]);
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pms_count10 = toU16(&buf[26]);
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pms_temp = toU16(&buf[24]);
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pms_hum = toU16(&buf[26]);
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pms_firmwareVersion = buf[28];
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pms_errorCode = buf[29];
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}
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@ -7,9 +7,8 @@
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class PMSBase {
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public:
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bool begin(Stream *stream);
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void handle();
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bool isFailed(void);
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bool begin(HardwareSerial& serial);
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void readPackage(HardwareSerial& serial);
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void updateFailCount(void);
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void resetFailCount(void);
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int getFailCount(void);
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@ -24,6 +23,7 @@ public:
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uint16_t getCount0_5(void);
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uint16_t getCount1_0(void);
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uint16_t getCount2_5(void);
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bool connected(void);
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/** For PMS5003 */
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uint16_t getCount5_0(void);
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@ -39,17 +39,36 @@ public:
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int compensate(int pm25, float humidity);
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||||
private:
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||||
Stream *stream;
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||||
char package[32];
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||||
int packageIndex;
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||||
bool failed = false;
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||||
uint32_t lastRead;
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static const uint8_t package_size = 32;
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||||
const int failCountMax = 10;
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||||
int failCount = 0;
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||||
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int16_t toI16(char *buf);
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||||
uint16_t toU16(char* buf);
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||||
bool validate(char *buf);
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uint8_t readBuffer[package_size];
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uint8_t readBufferIndex = 0;
|
||||
unsigned long lastPackage = 0;
|
||||
bool _connected;
|
||||
|
||||
uint16_t pms_raw0_1;
|
||||
uint16_t pms_raw2_5;
|
||||
uint16_t pms_raw10;
|
||||
uint16_t pms_pm0_1;
|
||||
uint16_t pms_pm2_5;
|
||||
uint16_t pms_pm10;
|
||||
uint16_t pms_count0_3;
|
||||
uint16_t pms_count0_5;
|
||||
uint16_t pms_count1_0;
|
||||
uint16_t pms_count2_5;
|
||||
uint16_t pms_count5_0;
|
||||
uint16_t pms_count10;
|
||||
int16_t pms_temp;
|
||||
uint16_t pms_hum;
|
||||
uint8_t pms_errorCode;
|
||||
uint8_t pms_firmwareVersion;
|
||||
|
||||
int16_t toI16(const uint8_t *buf);
|
||||
uint16_t toU16(const uint8_t *buf);
|
||||
bool validate(const uint8_t *buf);
|
||||
void parse(const uint8_t* buf);
|
||||
};
|
||||
|
||||
#endif /** _PMS5003_BASE_H_ */
|
||||
|
||||
@ -73,7 +73,7 @@ bool PMS5003::begin(void) {
|
||||
}
|
||||
#else
|
||||
this->_serial->begin(9600);
|
||||
if (pms.begin(this->_serial) == false) {
|
||||
if (pms.begin(*this->_serial) == false) {
|
||||
AgLog("PMS failed");
|
||||
return false;
|
||||
}
|
||||
@ -148,6 +148,14 @@ int PMS5003::getFirmwareVersion(void) { return _ver; }
|
||||
*/
|
||||
uint8_t PMS5003::getErrorCode(void) { return pms.getErrorCode(); }
|
||||
|
||||
/**
|
||||
* @brief Is sensor connect with device
|
||||
*
|
||||
* @return true Connected
|
||||
* @return false Removed
|
||||
*/
|
||||
bool PMS5003::connected(void) { return pms.connected(); }
|
||||
|
||||
/**
|
||||
* @brief Check device initialized or not
|
||||
*
|
||||
@ -182,15 +190,7 @@ void PMS5003::end(void) {
|
||||
* @brief Check and read PMS sensor data. This method should be callack from
|
||||
* loop process to continoue check sensor data if it's available
|
||||
*/
|
||||
void PMS5003::handle(void) { pms.handle(); }
|
||||
|
||||
/**
|
||||
* @brief Get sensor status
|
||||
*
|
||||
* @return true No problem
|
||||
* @return false Communication timeout or sensor has removed
|
||||
*/
|
||||
bool PMS5003::isFailed(void) { return pms.isFailed(); }
|
||||
void PMS5003::handle(void) { pms.readPackage(*this->_serial); }
|
||||
|
||||
void PMS5003::updateFailCount(void) {
|
||||
pms.updateFailCount();
|
||||
|
||||
@ -18,7 +18,6 @@ public:
|
||||
#endif
|
||||
void end(void);
|
||||
void handle(void);
|
||||
bool isFailed(void);
|
||||
void updateFailCount(void);
|
||||
void resetFailCount(void);
|
||||
int getFailCount(void);
|
||||
@ -31,6 +30,7 @@ public:
|
||||
int compensate(int pm25, float humidity);
|
||||
int getFirmwareVersion(void);
|
||||
uint8_t getErrorCode(void);
|
||||
bool connected(void);
|
||||
|
||||
private:
|
||||
bool _isBegin = false;
|
||||
|
||||
@ -98,7 +98,7 @@ bool PMS5003T::begin(void) {
|
||||
this->_serial->begin(9600, SERIAL_8N1, bsp->SenseAirS8.uart_rx_pin,
|
||||
bsp->SenseAirS8.uart_tx_pin);
|
||||
}
|
||||
if (pms.begin(this->_serial) == false) {
|
||||
if (pms.begin(*this->_serial) == false) {
|
||||
AgLog("PMS failed");
|
||||
return false;
|
||||
}
|
||||
@ -191,6 +191,14 @@ int PMS5003T::getFirmwareVersion(void) { return _ver; }
|
||||
*/
|
||||
uint8_t PMS5003T::getErrorCode(void) { return pms.getErrorCode(); }
|
||||
|
||||
/**
|
||||
* @brief Is sensor connect to device
|
||||
*
|
||||
* @return true Connected
|
||||
* @return false Removed
|
||||
*/
|
||||
bool PMS5003T::connected(void) { return pms.connected(); }
|
||||
|
||||
/**
|
||||
* @brief Check device initialized or not
|
||||
*
|
||||
@ -222,15 +230,7 @@ void PMS5003T::end(void) {
|
||||
* @brief Check and read PMS sensor data. This method should be callack from
|
||||
* loop process to continoue check sensor data if it's available
|
||||
*/
|
||||
void PMS5003T::handle(void) { pms.handle(); }
|
||||
|
||||
/**
|
||||
* @brief Get sensor status
|
||||
*
|
||||
* @return true No problem
|
||||
* @return false Communication timeout or sensor has removed
|
||||
*/
|
||||
bool PMS5003T::isFailed(void) { return pms.isFailed(); }
|
||||
void PMS5003T::handle(void) { pms.readPackage(*this->_serial); }
|
||||
|
||||
void PMS5003T::updateFailCount(void) {
|
||||
pms.updateFailCount();
|
||||
|
||||
@ -21,7 +21,6 @@ public:
|
||||
void end(void);
|
||||
|
||||
void handle(void);
|
||||
bool isFailed(void);
|
||||
void updateFailCount(void);
|
||||
void resetFailCount(void);
|
||||
int getFailCount(void);
|
||||
@ -36,6 +35,7 @@ public:
|
||||
int compensate(int pm25, float humidity);
|
||||
int getFirmwareVersion(void);
|
||||
uint8_t getErrorCode(void);
|
||||
bool connected(void);
|
||||
|
||||
private:
|
||||
bool _isBegin = false;
|
||||
|
||||
Reference in New Issue
Block a user