#include <DHT.h>

#define DHTPIN 3   
#define DHTTYPE DHT22
#define RELAY_PIN 2 

DHT dht(DHTPIN, DHTTYPE);

void setup() {
  Serial.begin(9600);
  dht.begin();

  pinMode(RELAY_PIN, OUTPUT);
  digitalWrite(RELAY_PIN, LOW); 
}

void loop() {
  float humidity = dht.readHumidity(); 

  if (isnan(humidity)) {
    Serial.println("Ошибка чтения с датчика!");
    return;
  }

  Serial.print("Влажность: ");
  Serial.print(humidity);
  Serial.println("%");

  if (humidity <= 50) {
    digitalWrite(RELAY_PIN, LOW); 
  } else {
    digitalWrite(RELAY_PIN, HIGH); 
  }

  delay(2000); 
}