const int soilMoisturePin = 34; // Analog pin connected to the soil moisture sensor (potentiometer in simulation)
const int ledGreenPin = 25;     // Digital pin connected to the green LED (simulates water pump on)
const int ledRedPin = 26;       // Digital pin connected to the red LED (simulates water pump off)
const int relayPin = 2;         // Digital pin connected to the relay module

int soilMoistureValue = 0;      // Variable to store the soil moisture sensor reading

void setup() {
  Serial.begin(9600);           // Initialize serial communication for debugging
  pinMode(soilMoisturePin, INPUT); // Set the soil moisture sensor pin as input
  pinMode(ledGreenPin, OUTPUT); // Set the green LED pin as output
  pinMode(ledRedPin, OUTPUT);   // Set the red LED pin as output
  pinMode(relayPin, OUTPUT);    // Set the relay pin as output
}

void loop() {
  soilMoistureValue = analogRead(soilMoisturePin); // Read the soil moisture sensor value

  // Simulate watering based on a threshold value (adjust as needed)
  if (soilMoistureValue < 2000) {
    // If soil moisture is low, turn on green LED (watering on) and activate relay
    digitalWrite(ledRedPin, LOW);
    digitalWrite(relayPin, HIGH);
    digitalWrite(ledGreenPin, HIGH); // Turn off red LED
  } else {
    // If soil moisture is high enough, turn off green LED (watering off) and deactivate relay
    digitalWrite(ledGreenPin, LOW); // Turn on red LED
    digitalWrite(relayPin, LOW);     // Deactivate relay
    digitalWrite(ledRedPin, HIGH);    // Turn off green LED
  }

  Serial.print("Soil Moisture: ");
  Serial.println(soilMoistureValue); // Print the soil moisture sensor reading for debugging

  delay(1000); // Delay for 1 second
}