@haloway13 Hey, as I said below, I have found a solution to the problem. I have made use of two other tutorials. (Attention German language!) https://draeger-it.blog/arduino-lektion-48-temperatursensor-ds18b20/ https://tutorials-raspberrypi.de/funkkommunikation-zwischen-raspberry-pis-und-arduinos-2-4-ghz/ If you look at the wiring, I can send you my code so far: #include <SPI.h> #include "printf.h" #include "RF24.h" #include <OneWire.h> #include <DallasTemperature.h> #define ONE_WIRE_BUS 2 //Sensor DS18B20 at digital pin 2 RF24 radio(7, 8); // using pin 7 for the CE pin, and pin 8 for the CSN pin OneWire oneWire(ONE_WIRE_BUS); DallasTemperature sensors(&oneWire); // Transfer of the OnewWire reference to communicate with the sensor. uint8_t address[][6] = {"1Node", "2Node"}; // Let these addresses be used for the pair bool radioNumber = 1; //to use different addresses on a pair of radios, we need a variable to uniquely identify which address this radio will use to transmit int sensorCount; float payload = 0.0; int ID = 0; float temperature = 0.0; float battery = 0.0; void setup() { Serial.begin(115200); while (!Serial) { // some boards need to wait to ensure access to serial over USB } // initialize the transceiver on the SPI bus if (!radio.begin()) { Serial.println(F("radio hardware is not responding!!")); while (1) {} // hold in infinite loop } // Set the PA Level low to try preventing power supply related problems // because these examples are likely run with nodes in close proximity to // each other. radio.setPALevel(RF24_PA_LOW); // RF24_PA_MAX is default. sensors.begin(); // Start communication with the sensor sensorCount = sensors.getDS18Count(); // Reading the number of connected // save on transmission time by setting the radio to only transmit the // number of bytes we need to transmit a float radio.setPayloadSize(sizeof(payload)); // float datatype occupies 4 bytes // set the TX address of the RX node into the TX pipe radio.openWritingPipe(address[radioNumber]); // always uses pipe 0 // set the RX address of the TX node into a RX pipe radio.openReadingPipe(1, address[!radioNumber]); // using pipe 1 radio.stopListening(); // put radio in TX mode } // setup void loop() { if(sensorCount ==0){ Serial.println("No temperature sensors found"); Serial.println("Please check your circuit!"); } sensors.requestTemperatures(); // This device is a TX node payload = sensors.getTempCByIndex(0); unsigned long start_timer = micros(); // start the timer bool report = radio.write(&payload, sizeof(float)); // transmit & save the report unsigned long end_timer = micros(); // end the timer if (report) { Serial.print(F("Transmission successful! ")); // payload was delivered Serial.print(F("Time to transmit = ")); Serial.print(end_timer - start_timer); // print the timer result Serial.print(F(" us. Sent: ")); Serial.println(payload); // print payload sent } else { Serial.println(F("Transmission failed or timed out")); // payload was not delivered } // to make this example readable in the serial monitor delay(1000); // slow transmissions down by 1 second } // loop