#define SOIL_PIN 34   // Analog pin connected to the potentiometer
#define PUMP_PIN 26   // Digital pin connected to the relay or LED
#define MOISTURE_THRESHOLD 2000  // Adjust this threshold for your setup

void setup() {
  Serial.begin(115200);  // Start serial communication at 115200 baud
  pinMode(SOIL_PIN, INPUT);   // Set soil sensor pin as input
  pinMode(PUMP_PIN, OUTPUT);  // Set pump (relay/LED) pin as output
  digitalWrite(PUMP_PIN, LOW); // Initially turn off the pump (LED)
}

void loop() {
  int soilMoistureValue = analogRead(SOIL_PIN);  // Read the soil moisture sensor value
  Serial.print("Soil Moisture Level: ");
  Serial.println(soilMoistureValue);

  // Compare soil moisture to the threshold
  if (soilMoistureValue > MOISTURE_THRESHOLD) {
    // Soil is dry, turn the pump on
    digitalWrite(PUMP_PIN, HIGH);
    Serial.println("Soil is dry. Turning pump ON.");
  } else {
    // Soil is wet, turn the pump off
    digitalWrite(PUMP_PIN, LOW);
    Serial.println("Soil is wet. Turning pump OFF.");
  }

  delay(500);  // Wait for 0.5 seconds before the next reading
}