#define sensorPin 34
#define relayPin 8

void setup() {
  Serial.begin(115200);
  pinMode(relayPin, OUTPUT);
  digitalWrite(relayPin, LOW);
}

void loop() {
  int sensorValue =  analogRead(sensorPin);
  int moisturePercent = map(sensorValue, 0, 4095, 100, 0);

  Serial.print("Moisture: ");
  Serial.print(moisturePercent);
  Serial.print("%");

  if (moisturePercent < 30) {
    digitalWrite(relayPin, HIGH);
    Serial.println("Pump ON");
  } else {
    digitalWrite(relayPin, LOW);
    Serial.println("Pump OFF");
  }

  delay(1000); // this speeds up the simulation
}