#include "OneWire.h"
#include "DallasTemperature.h"

#define ONE_WIRE_BUS   0

OneWire oneWire(ONE_WIRE_BUS);
DallasTemperature sensors(&oneWire);

void setup() {
  Serial.begin(115200);
  Serial.println("Hello, ESP32!");
   sensors.begin();
}

void loop() {
  Serial.print("Temperatur vom DS18B20: ");
  delay(2000);
  sensors.requestTemperatures();
  float tempC = sensors.getTempCByIndex(0);
 // Serial.print("\t : ");
  Serial.print(tempC);
  Serial.println("°C");
  
}