moved to sensor class

CO2_sensor.cpp

@@ -0,0 +1,44 @@
+#include "CO2_sensor.h"
+
+Adafruit_SCD30 scd30;
+
+#define CO2_INTERVAL 120000 //ms
+
+uint8_t CO2_samples = 3600 / g_pms_report_period;
+
+AQSSensor SCD30_temperature("Temperature", device_name, CO2_samples);
+AQSSensor SCD30_Humidity("Humidity", device_name, CO2_samples);
+AQSSensor SCD30_CO2("CO2", device_name, CO2_samples);
+
+uint32_t CO2_lastUpdate = 0;
+
+void initCO2sensor(void)
+{
+    Serial.print("Init SCD30:");
+    if (!scd30.begin(true))
+    {
+        Serial.println("Failed to find SCD30 device");
+    }
+
+    addSensorToList(&SCD30_temperature);
+    addSensorToList(&SCD30_Humidity);
+    addSensorToList(&SCD30_CO2);
+
+    Serial.println(" OK");
+}
+
+void handleCO2sensor(void)
+{
+    uint32_t currentmillis = millis();
+
+    if (currentmillis - CO2_lastUpdate > CO2_INTERVAL)
+    {
+        SCD30_temperature.set(uint32_t(scd30.temperature));
+        SCD30_Humidity.set(uint32_t(scd30.relative_humidity));
+        SCD30_CO2.set(uint32_t(scd30.CO2));
+
+        SCD30_temperature.publish();
+        SCD30_Humidity.publish();
+        SCD30_CO2.publish();
+    }
+}

CO2_sensor.h

@@ -0,0 +1,13 @@
+#pragma once
+
+#include "Arduino.h"
+#include "config.h"
+
+#include <Adafruit_SCD30.h>
+#include <Adafruit_Sensor.h>
+
+#include "sensor.h"
+
+
+void initCO2sensor( void );
+void handleCO2sensor( void );

main.cpp

@@ -17,6 +17,7 @@
      Adafruit_NeoPixel.h
      Adafruit_Sensor.h
      Adafruit_BME680.h
+     AdaFruit_SCD30.h
      "PubSubClient" by Nick O'Leary
      RunningMedian
 
@@ -36,6 +37,7 @@
 #include "lcd.h"
 #include "mqtt.h"
 #include "particles.h"
+#include "CO2_sensor.h"
 #include "button.h"
 
 /*--------------------------- Program ---------------------------------------*/
@@ -51,7 +53,9 @@ void setup()
 
   initWifi();
   initMQTT();
+  initSensor();
   initParticles();
+  initCO2sensor();
   initLCD();
   initButtons();
 }
@@ -62,7 +66,9 @@ void setup()
 void loop()
 {
   handleParticles();
-  handleMQTT();
+  handleCO2sensor();
   handleButtons();
+  handleSensor();
   handleLCD();
+  handleMQTT();
 }

mqtt.cpp

@@ -154,3 +154,4 @@ void publishSingle(uint32_t value, char *topic)
   message_string.toCharArray(g_mqtt_message_buffer, message_string.length() + 1);
   client.publish(topic, g_mqtt_message_buffer);
 }
+

mqtt.h

@@ -9,7 +9,6 @@
 #include <string>
 #include "RunningMedian.h"
 
-
 void initMQTT(void);
 void handleMQTT(void);
 bool initWifi();
@@ -17,47 +16,3 @@ bool initWifi();
 uint32_t getDeviceID(void);
 
 void publishSingle(uint32_t value, char *topic);
-
-class mqttSensor
-{
-  char _topic[50];
-  char _topic_1h[50];
-  char _topic_24h[50];
-  const String _name;
-  uint32_t _value;
-  RunningMedian _average1h;
-  RunningMedian _average24h;
-  public:
-
-  mqttSensor(String name, String deviceID, uint8_t avgSamples): _name(name), 
-                                                                _average1h(avgSamples),
-                                                                _average24h(avgSamples*24)
-  {
-    sprintf(_topic, "Sensors/%s/%s", deviceID.c_str(),name.c_str() );
-    sprintf(_topic_1h, "Sensors/%s/%s/1h/", deviceID.c_str(),name.c_str() );
-    sprintf(_topic_24h, "Sensors/%s/%s/24h/", deviceID.c_str(),name.c_str() );
-  }
-
-
-  void publish(void)
-  {
-    publishSingle(_value, _topic);
-    publishSingle(_average1h.getMedian(),_topic_1h);
-    publishSingle(_average24h.getMedian(),_topic_24h);
-  }
-
-  virtual void set(uint32_t value)
-  {
-    _value = value;
-    _average1h.add(_value);
-    _average24h.add(_value);
-  }
-
-  uint32_t value()  {return _value;}
-
-  void print( void )
-  {
-    Serial.printf("sensor:%s = %d\n",_name.c_str(), _value);
-  }
-
-};

particles.cpp

@@ -12,69 +12,97 @@ char g_command_topic[50];        // MQTT topic for receiving commands
 #define PMS_STATE_READY 2     // Warmed up, ready to give data
 uint8_t g_pms_state = PMS_STATE_WAKING_UP;
 
-
-
 uint32_t g_pms_state_start = 0;       // Timestamp when PMS state last changed
 uint8_t g_pms_readings_taken = 0;     // 0/1: whether any readings have been taken
 uint8_t g_pms_ppd_readings_taken = 0; // 0/1: whether PPD readings have been taken
 
 uint8_t samples = 3600 / g_pms_report_period;
 
-mqttSensor g_pm1p0_sp("SP_1P0",      device_name, samples);
+AQSSensor g_pm1p0_sp("SP_1P0",      device_name, samples);
-mqttSensor g_pm2p5_sp("SP_2P5",      device_name, samples);
+AQSSensor g_pm2p5_sp("SP_2P5",      device_name, samples);
-mqttSensor g_pm10p0_sp("SP_10P0",    device_name, samples);
+AQSSensor g_pm10p0_sp("SP_10P0",    device_name, samples);
 
-mqttSensor g_pm1p0_ae("AE_1P0",      device_name, samples);
+AQSSensor g_pm1p0_ae("AE_1P0",      device_name, samples);
-mqttSensor g_pm2p5_ae("AE_2P5",      device_name, samples);
+AQSSensor g_pm2p5_ae("AE_2P5",      device_name, samples);
-mqttSensor g_pm10p0_ae("AE_10P0",    device_name, samples);
+AQSSensor g_pm10p0_ae("AE_10P0",    device_name, samples);
 
-mqttSensor g_pm0p3_ppd("PPD_0P3",   device_name, samples);
+AQSSensor g_pm0p3_ppd("PPD_0P3",   device_name, samples);
-mqttSensor g_pm0p5_ppd("PPD_0P5",   device_name, samples);
+AQSSensor g_pm0p5_ppd("PPD_0P5",   device_name, samples);
-mqttSensor g_pm1p0_ppd("PPD_1P0",   device_name, samples);
+AQSSensor g_pm1p0_ppd("PPD_1P0",   device_name, samples);
-mqttSensor g_pm2p5_ppd("PPD_2P5",   device_name, samples);
+AQSSensor g_pm2p5_ppd("PPD_2P5",   device_name, samples);
-mqttSensor g_pm5p0_ppd("PPD_5P0",   device_name, samples);
+AQSSensor g_pm5p0_ppd("PPD_5P0",   device_name, samples);
-mqttSensor g_pm10p0_ppd("PPD_10P0", device_name, samples);
+AQSSensor g_pm10p0_ppd("PPD_10P0", device_name, samples);
 
-std::vector<mqttSensor*> sensorList;
+void PMS_publishSensors(void );
 
-void prepareTopics( void )
+
+void PMS_AddSensors( void )
 {
-  sensorList.push_back(&g_pm1p0_sp);
+  addSensorToList(&g_pm1p0_sp);
-  sensorList.push_back(&g_pm2p5_sp);
+  addSensorToList(&g_pm2p5_sp);
-  sensorList.push_back(&g_pm10p0_sp);
+  addSensorToList(&g_pm10p0_sp);
 
-  sensorList.push_back(&g_pm1p0_ae);
+  addSensorToList(&g_pm1p0_ae);
-  sensorList.push_back(&g_pm2p5_ae);
+  addSensorToList(&g_pm2p5_ae);
-  sensorList.push_back(&g_pm10p0_ae);
+  addSensorToList(&g_pm10p0_ae);
   
-  sensorList.push_back(&g_pm0p3_ppd);
+  addSensorToList(&g_pm0p3_ppd);
-  sensorList.push_back(&g_pm0p5_ppd);
+  addSensorToList(&g_pm0p5_ppd);
-  sensorList.push_back(&g_pm1p0_ppd);
+  addSensorToList(&g_pm1p0_ppd);
-  sensorList.push_back(&g_pm2p5_ppd);
+  addSensorToList(&g_pm2p5_ppd);
-  sensorList.push_back(&g_pm5p0_ppd);
+  addSensorToList(&g_pm5p0_ppd);
-  sensorList.push_back(&g_pm10p0_ppd);
+  addSensorToList(&g_pm10p0_ppd);
 }
 
 uint32_t getLCDvalue(void)
 {
   return g_pm2p5_ae.value();
 }
-/**
+
-  Report the latest values to the serial console
+
-*/
+void PMS_publishSensors(void )
-void reportToSerial()
 {
+  String message_string;
+
   /* Report PM1.0 AE value */
-  for( auto && sensor : sensorList)
+  g_pm1p0_ae.publish();
+  g_pm2p5_ae.publish();
+  g_pm10p0_ae.publish();
+
+  g_pm1p0_sp.publish();
+  g_pm2p5_sp.publish();
+  g_pm10p0_sp.publish();
+
+  if (1 == g_pms_ppd_readings_taken)
   {
-    sensor->print();
+    /* Report PM0.3 PPD value */
+    g_pm0p3_ppd.publish();
+    g_pm0p5_ppd.publish();
+    g_pm1p0_ppd.publish();
+    g_pm2p5_ppd.publish();
+    g_pm5p0_ppd.publish();
+    g_pm10p0_ppd.publish();
   }
 }
 
-/**
+void initParticles( void )
-  Update particulate matter sensor values
+{
-*/
+  Serial.print("initPMS:");
-void updatePmsReadings()
+  // Open a connection to the PMS and put it into passive mode
+  Serial2.begin(PMS_BAUD_RATE, SERIAL_8N1, PMS_RX_PIN, PMS_TX_PIN); // Connection for PMS5003
+  pms.activeMode();                                                 // Tell PMS to stop sending data automatically
+  delay(100);
+  pms.wakeUp(); // Tell PMS to wake up (turn on fan and laser)
+
+  //Serial2.begin(PMS_BAUD_RATE, SERIAL_8N1, PMS_RX_PIN, PMS_TX_PIN);
+
+  PMS_AddSensors();
+
+  Serial.println(" OK");
+
+}
+
+void handleParticles( void )
 {
  uint32_t time_now = millis();
 
@@ -135,8 +163,7 @@ void updatePmsReadings()
       pms.sleep();
 
       // Report the new values
-      reportToMqtt();
+      PMS_publishSensors();
-      reportToSerial();
 
       g_pms_readings_taken = 1;
       g_pms_state_start = time_now;
@@ -144,51 +171,3 @@ void updatePmsReadings()
     }
   }
 }
-
-
-void reportToMqtt(void )
-{
-  String message_string;
-
-  /* Report PM1.0 AE value */
-  g_pm1p0_ae.publish();
-  g_pm2p5_ae.publish();
-  g_pm10p0_ae.publish();
-
-  g_pm1p0_sp.publish();
-  g_pm2p5_sp.publish();
-  g_pm10p0_sp.publish();
-
-  if (1 == g_pms_ppd_readings_taken)
-  {
-    /* Report PM0.3 PPD value */
-    g_pm0p3_ppd.publish();
-    g_pm0p5_ppd.publish();
-    g_pm1p0_ppd.publish();
-    g_pm2p5_ppd.publish();
-    g_pm5p0_ppd.publish();
-    g_pm10p0_ppd.publish();
-  }
-}
-
-void initParticles( void )
-{
-  Serial.print("initPMS:");
-  // Open a connection to the PMS and put it into passive mode
-  Serial2.begin(PMS_BAUD_RATE, SERIAL_8N1, PMS_RX_PIN, PMS_TX_PIN); // Connection for PMS5003
-  pms.activeMode();                                                 // Tell PMS to stop sending data automatically
-  delay(100);
-  pms.wakeUp(); // Tell PMS to wake up (turn on fan and laser)
-
-  //Serial2.begin(PMS_BAUD_RATE, SERIAL_8N1, PMS_RX_PIN, PMS_TX_PIN);
-
-  prepareTopics();
-
-  Serial.println(" OK");
-
-}
-
-void handleParticles( void )
-{
-  updatePmsReadings();
-}

particles.h

@@ -6,10 +6,9 @@
 
 #include "PMS.h"             // Particulate Matter Sensor driver (embedded)
 #include "RunningMedian.h"
-#include "mqtt.h"
+#include "sensor.h"
 
 uint32_t getLCDvalue(void);
-void reportToMqtt(void );
 
 void initParticles( void );
 void handleParticles( void );

platformio.ini

@@ -6,7 +6,7 @@
 ;   Advanced options: extra scripting
 ;
 ; Please visit documentation for the other options and examples
-; http://docs.platformio.org/page/projectconf.html
+; https://docs.platformio.org/page/projectconf.html
 
 [platformio]
 default_envs = esp32
@@ -16,15 +16,13 @@ src_dir = .
 lib_deps_builtin = 
 	WiFi
 	TFT_eSPI
-
 lib_deps = 
-    #adafruit/Adafruit BME680 Library
+	adafruit/Adafruit Unified Sensor
-    #adafruit/Adafruit GFX Library
-    #adafruit/Adafruit Neopixel
-    #adafruit/Adafruit Unified Sensor
 	knolleary/PubSubClient
 	robtillaart/RunningMedian
 	bodmer/Tjpg_decoder
+	adafruit/Adafruit SCD30
+    adafruit/Adafruit BusIO
 
 [env:esp32]
 platform = espressif32
@@ -34,3 +32,4 @@ monitor_speed = 115200
 lib_deps = 
 	${common.lib_deps_builtin}
 	${common.lib_deps}
+	

sensor.cpp

@@ -0,0 +1,42 @@
+#include "sensor.h"
+
+
+std::vector<AQSSensor*> sensorList;
+
+void publishAll(void);
+
+void reportToSerial(void)
+{
+  /* Report PM1.0 AE value */
+  for( auto && sensor : sensorList)
+  {
+    sensor->print();
+  }
+}
+
+void addSensorToList(AQSSensor* sensor)
+{
+  sensorList.push_back(sensor);
+  Serial.printf("AQSSensor: added %s", sensor->getName().c_str());
+}
+
+
+void publishAll(void)
+{
+  for(auto && sensor : sensorList)
+  {
+    sensor->print();
+    sensor->publishMQTT();
+  }
+}
+
+void initSensor(void)
+{
+    Serial.print("InitSensor:");
+    Serial.println(" OK");
+}
+
+void handleSensor(void)
+{
+  publishAll();
+}

sensor.h

@@ -0,0 +1,70 @@
+#pragma once
+
+#include "Arduino.h"
+#include "mqtt.h"
+
+class AQSSensor
+{
+    char _topic[50];
+    char _topic_1h[50];
+    char _topic_24h[255];
+    const String _name;
+    uint32_t _value;
+    RunningMedian _average1h;
+    RunningMedian _average24h;
+    bool _publish = false;
+
+public:
+    AQSSensor(String name, String deviceID, uint8_t avgSamples) : _name(name),
+                                                                  _average1h(avgSamples),
+                                                                  _average24h(avgSamples * 24)
+    {
+        sprintf(_topic, "Sensors/%s/%s", deviceID.c_str(), name.c_str());
+        sprintf(_topic_1h, "Sensors/%s/%s/1h/", deviceID.c_str(), name.c_str());
+        sprintf(_topic_24h, "Sensors/%s/%s/24h/", deviceID.c_str(), name.c_str());
+    }
+
+    void publish(void)
+    {
+        _publish = true;
+    }
+
+    String getName(void)
+    {
+        return _name;
+    }
+
+    void publishMQTT(void)
+    {
+        if (_publish == true)
+        {
+            publishSingle(_value, _topic);
+            publishSingle(_average1h.getMedian(), _topic_1h);
+            publishSingle(_average24h.getMedian(), _topic_24h);
+            _publish = false;
+        }
+    }
+
+    virtual void set(uint32_t value)
+    {
+        _value = value;
+        _average1h.add(_value);
+        _average24h.add(_value);
+    }
+
+    uint32_t value() { return _value; }
+
+    void print(void)
+    {
+        if (_publish)
+        {
+            Serial.printf("sensor:%s = %d\n", _name.c_str(), _value);
+        }
+    }
+};
+
+void addSensorToList(AQSSensor *sensor);
+void reportToSerial(void);
+
+void initSensor(void);
+void handleSensor(void);