.

Overall configuration

ESP32_Temperture-Node/platformio.ini

@@ -12,3 +12,9 @@
 platform = espressif32
 board = esp32doit-devkit-v1
 framework = arduino
+monitor_speed = 115200
+lib_deps = 
+	knolleary/PubSubClient@^2.8
+
+[platformio]
+description = ESP32 Sensors node

ESP32_Temperture-Node/src/config.h

@@ -1,7 +1,7 @@
 // Uncomment modules as required
 //#define RTC
 //#define MICRO_SD
-#define BMP280      // Adafruit BMP280; temp & pressure
+//#define BMP280      // Adafruit BMP280; temp & pressure
 //#define BME280    // Generic BME280; temp, pressure & humidity
 //#define AWSIoT
 

ESP32_Temperture-Node/src/main.cpp

@@ -23,6 +23,7 @@ struct {
   float temperature = 0.0;
 } sensors_values;
 
+// Sensors modules specified in config.h file.
 // BME280
 #ifdef BME280
 // WaveShare BME280
@@ -35,7 +36,7 @@ Adafruit_BME280 bme;
 #define BMP_MISO  (19)
 #define BMP_MOSI  (23)
 #define BMP_CS    (5)
-Adafruit_BMP280 bmp(BMP_CS);
+//Adafruit_BMP280 bmp(BMP_CS);
 #endif
 
 // Mosquitto
@@ -192,7 +193,142 @@ void mosquitto_connect ()
 }
 
 void setup() {
+  Serial.begin(115200);
+  Serial.println();
+  sensors_values.humidity = 0.0;
+  sensors_values.pressure = 0.0;
+  sensors_values.temperature = 0.0;
+
+  // Initialize GPIO
+  #ifdef devkit_36pin_001
+  #endif
+  #ifdef devkit_30pin_001
+  pinMode(LED_PIN, OUTPUT);
+  pinMode(PING_PIN, OUTPUT);
+  pinMode(SWITCH_1, OUTPUT);
+  pinMode(SWITCH_2, OUTPUT);
+
+  pinMode(FAN_RPM, INPUT);
+  digitalWrite(FAN_RPM, HIGH);
+  //attachInterrupt(digitalPinToInterrupt(FAN_RPM), rpm_fan, FALLING);
+  //pinMode(DAC_CH1, OUTPUT);
+  // Active level is LOW
+  digitalWrite(SWITCH_1, LOW);
+  digitalWrite(SWITCH_2, LOW);
+  //digitalWrite(DAC_CH1, LOW);
+  dacWrite(DAC1, 0);
+  #endif  
+
+  Serial.println("setup");  
+  Serial.println("setup done");
+
+  // WaveShare BME280
+  #ifdef BME280
+  unsigned status = bme.begin(); 
+  if (!status) {
+    Serial.println("Could not find a valid BME/BMP280 sensor, check wiring!");
+    Serial.print("SensorID was: 0x"); Serial.println(bme.sensorID());//,16);
+    Serial.print("   ID of 0xFF probably means a bad address, a BMP 180 or BMP 085\n");
+    Serial.print("   ID of 0x56-0x58 represents a BMP 280,\n");
+    Serial.print("   ID of 0x60 represents a BME 280.\n");
+    Serial.print("   ID of 0x61 represents a BME 680.\n");
+    while (1);
+  }
+  else {
+    humidity = bme.readHumidity();
+    pressure = bme.readPressure()  / 100.0F;
+  }
+  #endif
+
+  // BMP280
+  #ifdef BMP280  
+  unsigned status_bmp280;
+  status_bmp280 = bmp.begin();
+  if (!status_bmp280) {
+    Serial.println("Could not find BMP280");
+    Serial.println(bmp.sensorID(),16);
+    while (1);
+  }
+  else {
+    Serial.println(bmp.sensorID(),16);
+  }
+  #endif
+
+  // Initialize RTC module, if defined
+  #ifdef RTC
+  rtc.begin();  
+  if (! rtc.begin())
+  {
+    Serial.println("Couldn't find RTC");
+    while (1);
+  }
+  temp = rtc.getTemperature();
+  #endif  
+  // Uncomment when compiling for the first time
+  //rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
+  /*if (rtc.lostPower()) {
+    Serial.println("RTC lost power, lets set the time!");
+    // following line sets the RTC to the date & time this sketch was compiled
+    rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
+    // This line sets the RTC with an explicit date & time, for example to set
+    // January 21, 2014 at 3am you would call:
+    // rtc.adjust(DateTime(2014, 1, 21, 3, 0, 0));
+  }*/
+
+  String hostname = "ESP32LF";
+  WiFi.config(INADDR_NONE, INADDR_NONE, INADDR_NONE, INADDR_NONE);
+  WiFi.setHostname(hostname.c_str());
+  WiFi.begin(WIFI_SSID, WIFI_PASSWORD);
+  WiFi.mode(WIFI_STA);
   
+  Serial.println("Connecting to Wi-Fi");
+  
+  // Connect to wifi.
+  while (WiFi.status() != WL_CONNECTED) {
+    delay(500);
+    Serial.print("#");
+  }
+  Serial.print("\nCONNECTED\nIP: ");  
+  Serial.println(WiFi.localIP());
+  
+  Serial.print("Connecting to Mosquitto at IP: ");
+  Serial.print(mqtt_server);
+  #ifdef MQTT // MOSQUITTO MQTT port 1883
+  Serial.println(":1883");
+  connection.setServer(mqtt_server, 1883);
+  if(connection.connect("ESP32")) {
+    Serial.println("Mosquitto Connected!");
+    connection.setCallback(mosquito_callback);
+    digitalWrite(LED_PIN, HIGH);
+  }
+  else {
+    Serial.print("Mosquitto state: ");
+    digitalWrite(LED_PIN, LOW);
+  }
+  Serial.println(connection.state());
+  #endif
+  #ifdef MQTT_SSL // MOSQUITTO MQTT port 8883
+  Serial.println(":8883");
+  connection.setServer(mqtt_server, 8883);
+  espClientSSL.setCACert(NODE_CERT_CA);
+  espClientSSL.setCertificate(NODE_CERT_CRT);
+  espClientSSL.setPrivateKey(NODE_CERT_PRIVATE);
+  //connection.setCallback(mosquito_callback);
+  if(connection.connect("esp32")) {
+    Serial.println("Mosquitto Connected!");
+    connection.subscribe("esp32/sw1");
+    connection.subscribe("esp32/sw2");
+    connection.subscribe(MQTT_IOT_CHANNEL_OUTPUT_SWITCH_2);
+    connection.subscribe(MQTT_IOT_CHANNEL_OUTPUT_PWM_1);
+    connection.setCallback(mosquito_callback);
+    digitalWrite(LED_PIN, HIGH);
+  }
+  else {
+    Serial.print("Mosquitto state: ");
+    digitalWrite(LED_PIN, LOW);
+  }
+  Serial.println(connection.state());
+  #endif  
 }
 
 void loop() {