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Res/ESP8266-Sensor.ino

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+#include <Wire.h>
+#include <SPI.h>
+#include <Adafruit_Sensor.h>
+#include <Adafruit_BMP280.h>     
+#include <ESP8266WiFi.h>         
+#include <ESP8266HTTPClient.h>   
+#include <WiFiClientSecure.h>    
+#include <SparkFunCCS811.h>      
+#include <AM2302-Sensor.h>       
+
+//WLAN-Daten
+#define WIFI_SSID "mdg-sensor"
+#define WIFI_PASS "" //Ausgefüllt durch Lehrkraft
+
+const char* sender = ""; //Sensorname - bitte eingeben, muss eindeutig sein (zwei Sensoren dürfen nicht den selben Namen haben)
+const char* serverName = "https://sensor.hub.mdg-hamburg.de/send";
+
+#define SEALEVELPRESSURE_HPA (1013.25)
+#define BMP_SCK 0
+#define BMP_MISO 12
+#define BMP_MOSI 2
+#define BMP_CS 14
+
+#define CCS811_ADDR 0x5A
+
+#define TEMT6000 A0
+
+Adafruit_BMP280 bmp(BMP_CS, BMP_MOSI, BMP_MISO, BMP_SCK);
+
+CCS811 airSensor(CCS811_ADDR);
+
+float temperature;
+float pressure;
+float temperature_2;
+float humidity;
+float light;
+float adcv;
+uint co2;
+uint tvoc;
+
+constexpr unsigned int SENSOR_PIN {13U};
+
+AM2302::AM2302_Sensor am2302{SENSOR_PIN};
+
+
+unsigned long lastTime = 0;  
+unsigned long timerDelay = 60000;  //Ausleserate der Sensoren
+
+void getSensorReadings(){
+  //Daten auslesen
+  temperature = bmp.readTemperature();        //Temperatur #2
+  pressure = bmp.readPressure() / 100.0F;     //Druck
+  auto status = am2302.read();
+  temperature_2 = am2302.get_Temperature();   //Temperatur #1
+  humidity = am2302.get_Humidity();           //Luftfeuchte
+  adcv = analogRead(TEMT6000) * (3.3 / 1023); //Licht messen (analogRead)
+  light = adcv * 500;                         //Licht in lx (Lux) umwandeln
+
+  if (airSensor.dataAvailable())
+    {
+    airSensor.readAlgorithmResults();
+    co2 = airSensor.getCO2();                 //ECO2 messen
+    tvoc = airSensor.getTVOC();               //TVOC messen
+    }
+  airSensor.setEnvironmentalData(humidity, temperature);
+}
+
+
+void setup() {
+  pinMode(TEMT6000, INPUT);
+  Serial.begin(115200);
+
+  //WLAN-Verbindung aufbauen
+  WiFi.begin(WIFI_SSID, WIFI_PASS);
+
+  //Mit WLAN verbinden
+  Serial.print("Connecting to ");
+  Serial.print(WIFI_SSID);
+  while (WiFi.status() != WL_CONNECTED)
+  {
+    delay(100);
+    Serial.print(".");
+  }
+  
+  //Wenn mit WLAN verbunden
+  Serial.println();
+  Serial.println("Connected!");
+  Serial.print("IP address for network ");
+  Serial.print(WIFI_SSID);
+  Serial.print(" : ");
+  Serial.println(WiFi.localIP());
+
+  bool status;
+
+  status = bmp.begin();  
+  if (!status) {
+    Serial.println("Could not detect a BMP280 sensor, Fix wiring Connections!");
+    while (1);
+  }
+   
+   if (am2302.begin()) {
+      //Benötigt um richtige Daten zu erhalten
+      delay(3000);
+   }
+   else {
+      while (true) {
+      Serial.println("ERROR: am2302 sensor check. => Please check sensor connection!");
+      delay(10000);
+      }
+   }
+
+  Wire.begin();
+    if (airSensor.begin() == false)
+    {
+      Serial.print("ERROR: CCS811 error. Please check wiring. Freezing...");
+      while (1)
+        ;
+    }
+}
+
+void loop() {
+  if ((millis() - lastTime) > timerDelay) {
+    //Wenn der sensor seit mehr als einer Minute keine Messung gemacht hat
+    getSensorReadings();
+    Serial.printf("Temperature = %.2f ºC \n", temperature);
+    Serial.printf("Temperature2 = %.2f ºC \n", temperature_2);
+    Serial.printf("Pressure = %.2f hPa \n", pressure);
+    Serial.printf("Humidity = %.2f \n", humidity);
+    if(TEMT6000ERR == true) {
+      Serial.print("NAN / Error reading TEMT6000 value");
+    }else{
+      Serial.printf("Light = %.2f \n", light);
+    }
+    Serial.printf("CO2 = %d \n", co2);
+    Serial.printf("TVOC = %d \n", tvoc);
+    Serial.println();
+
+  if(WiFi.status()== WL_CONNECTED){
+      //Wenn eine WLAN-Verbindung besteht
+      WiFiClientSecure client;
+      client.setInsecure();
+      HTTPClient http;
+
+      http.begin(client, serverName);
+
+      //Daten senden
+      http.addHeader("Content-Type", "application/json");
+      String httpRequestData = "{\"sender\":\"" + String(sender) + "\",\"data\":[" + String(temperature) + "," + String(temperature_2) + "," + String(pressure) + "," + String(humidity) + "," + String(light) + "," + String(co2) + "," + String(tvoc) + "]}";           
+      Serial.println(httpRequestData);
+      int httpResponseCode = http.POST(httpRequestData);
+      
+      Serial.print("HTTP Response code: ");
+      Serial.println(httpResponseCode);
+     
+      http.end();
+    }
+    else {
+      //Wenn kein WLAN verbunden ist
+      Serial.println("WiFi Disconnected");
+      WiFi.begin(WIFI_SSID, WIFI_PASS);
+    }
+
+    lastTime = millis();
+
+  }
+}