Best posts made by Commodoreuno

Okay, I have now taken all the suggestions into account, including deleting the application in Home Assistant. I also worked with the official script for deleting the Arduino, which I hadn't done before, and made changes in the program, especially with the IDs and various names, in order to essentially create a completely new program. Now it works with this script. Thanks so far for the help!

// Enable debug prints
#define MY_DEBUG

// Set static node ID
#define MY_NODE_ID 45

// Enable only USB, disable radio
#define MY_GATEWAY_SERIAL

#include <SPI.h>
#include <MySensors.h>
#include <DHT.h>
#include <Adafruit_Sensor.h>

// ---------- DHT CONFIG ----------
#define DHTPIN 4         // Datenpin des DHT22
#define DHTTYPE DHT22    // Sensor-Typ DHT22
#define USE_CELSIUS true // Immer Celsius verwenden
#define SENSOR_TEMP_OFFSET 0

#define UPDATE_INTERVAL 5000           // 5 Sekunden
#define FORCE_UPDATE_N_READS 10        // nach 10 gleichen Werten senden

#define CHILD_ID_HUM 20
#define CHILD_ID_TEMP 21

DHT dht(DHTPIN, DHTTYPE);
MyMessage msgHum(CHILD_ID_HUM, V_HUM);
MyMessage msgTemp(CHILD_ID_TEMP, V_TEMP);

float lastTemp;
float lastHum;
uint8_t nNoUpdatesTemp = 0;
uint8_t nNoUpdatesHum = 0;

// ---------- BUTTON CONFIG ----------
#define PRIMARY_BUTTON_PIN 2
#define SECONDARY_BUTTON_PIN 3

#define PRIMARY_CHILD_ID 22
#define SECONDARY_CHILD_ID 23

MyMessage msgButton1(PRIMARY_CHILD_ID, V_TRIPPED);
MyMessage msgButton2(SECONDARY_CHILD_ID, V_TRIPPED);

static uint8_t lastButton1 = 2;
static uint8_t lastButton2 = 2;

// ---------- SETUP & PRESENTATION ----------
void presentation() {
  sendSketchInfo("Combined Sensor Node", "1.0");

  // Sensoren anmelden
  present(CHILD_ID_HUM, S_HUM);
  present(CHILD_ID_TEMP, S_TEMP);
  present(PRIMARY_CHILD_ID, S_DOOR);
  present(SECONDARY_CHILD_ID, S_DOOR);
}

void setup() {
  dht.begin();  // DHT starten

  pinMode(PRIMARY_BUTTON_PIN, INPUT_PULLUP);
  pinMode(SECONDARY_BUTTON_PIN, INPUT_PULLUP);
}

// ---------- LOOP ----------
void loop() {
  // ----- DHT AUSLESEN -----
  float temperature = dht.readTemperature(); // immer Celsius
  float humidity = dht.readHumidity();

  if (!isnan(temperature) && (temperature != lastTemp || nNoUpdatesTemp >= FORCE_UPDATE_N_READS)) {
    lastTemp = temperature + SENSOR_TEMP_OFFSET;
    send(msgTemp.set(lastTemp, 1));
    nNoUpdatesTemp = 0;
    Serial.print("Temp: ");
    Serial.println(lastTemp);
  } else {
    nNoUpdatesTemp++;
  }

  if (!isnan(humidity) && (humidity != lastHum || nNoUpdatesHum >= FORCE_UPDATE_N_READS)) {
    lastHum = humidity;
    send(msgHum.set(lastHum, 1));
    nNoUpdatesHum = 0;
    Serial.print("Hum: ");
    Serial.println(lastHum);
  } else {
    nNoUpdatesHum++;
  }

  // ----- BUTTONS -----
  uint8_t val1 = digitalRead(PRIMARY_BUTTON_PIN);
  if (val1 != lastButton1) {
    send(msgButton1.set(val1 == HIGH));
    lastButton1 = val1;
  }

  uint8_t val2 = digitalRead(SECONDARY_BUTTON_PIN);
  if (val2 != lastButton2) {
    send(msgButton2.set(val2 == HIGH));
    lastButton2 = val2;
  }

  // ----- SLEEP -----
  //sleep(PRIMARY_BUTTON_PIN - 2, CHANGE, SECONDARY_BUTTON_PIN - 2, CHANGE, UPDATE_INTERVAL);
  delay(50);
}