TCRT5000 und DHT mit einem ESP32 auslesen

#include <Basecamp.hpp>

#include <DHTesp.h>

#include <AsyncMqttClient.h>

Basecamp iot;

#define LED_pin 2

AsyncMqttClient mqttClient;

/** Initialize DHT sensor */

DHTesp dht;

/** Task handle for the light value read task */

TaskHandle_t tempTaskHandle = NULL;

/** Pin number for DHT11 data pin */

int dhtPin = 25;

char tempBuf[2]={0};

TempAndHumidity lastValues;

char feuchtBuf[2]={0};

/*

hw_timer_t * timer = NULL;

volatile uint8_t ledstat = 0; 

void IRAM_ATTR onTimer(){

 // ledstat=1-ledstat;

 // digitalWrite(16, ledstat);   // turn the LED on or off

  // lastValues = dht.getTempAndHumidity();

 Serial.println("*************************auslesen*********************");

}

*/

void setup() {

  // put your setup code here, to run once:

  // Initialize temperature sensor

  dht.setup(dhtPin, DHTesp::DHT22);

  iot.begin();

  pinMode(LED_pin, OUTPUT);

  Serial.begin(115200);

  iot.mqtt.onConnect(mqttConnected);

  iot.mqtt.onMessage(mqttMessage);

 /*  Serial.println("start timer ");

  timer = timerBegin(0, 80, true);  // timer 0, MWDT clock period = 12.5 ns * TIMGn_Tx_WDT_CLK_PRESCALE -> 12.5 ns * 80 -> 1000 ns = 1 us, countUp

  timerAttachInterrupt(timer, &onTimer, true); // edge (not level) triggered 

  timerAlarmWrite(timer, 2000000, true); // 1000000 * 1 us = 1 s, autoreload true

timerAlarmEnable(timer); // enable

*/

}

void mqttConnected(bool sessionPresent) {

  iot.mqtt.subscribe("example1/led", 0);

  iot.mqtt.publish("stromzaehler/temp", 1, true,tempBuf );

  iot.mqtt.publish("stromzaehler/relFeucht", 1, true, feuchtBuf );

  Serial.print("*****************");

  Serial.println(tempBuf);

}

void mqttMessage(char* topic, char* payload, AsyncMqttClientMessageProperties properties, size_t len,

                 size_t index, size_t total) {

  payload[len] = '\0';

  String strTopic = String(topic);

  String strPayload = String((char * ) payload);

  if (strTopic == "example1/led") {

    if (strPayload == "off" || strPayload == "0" || strPayload == "false") {

      digitalWrite(LED_pin, LOW);

      Serial.println("Lampe aus");

    }

    if (strPayload == "on" || strPayload == "1" || strPayload == "true") {

      digitalWrite(LED_pin, HIGH);

      Serial.println("Lampe an");

    }

  }

}

void loop() {

  // put your main code here, to run repeatedly:

  // Reading temperature and humidity takes about 250 milliseconds!

  // Sensor readings may also be up to 2 seconds 'old' (it's a very slow sensor)

  lastValues = dht.getTempAndHumidity();

  Serial.println("Temperature: " + String(lastValues.temperature, 0));

  Serial.println("Humidity: " + String(lastValues.humidity, 0));

  dtostrf((lastValues.humidity),2, 0, feuchtBuf);

  dtostrf((lastValues.temperature),2, 0, tempBuf);

 delay(1000);

}