// For Complete Details Visit -> YouTube - HARISH P
// For Complete Details Visit -> YouTube - HARISH PROJECTS

int rainPin = A0;
int greenLED = 25; // GPIO pin 26 for green LED
int redLED = 27; // GPIO pin 27 for red LED
int buzzerPin = 26; // GPIO pin 25 for buzzer
// you can adjust the threshold value
int thresholdValue = 800;

void setup(){
  pinMode(rainPin, INPUT);
  pinMode(greenLED, OUTPUT);
  pinMode(redLED, OUTPUT);
  pinMode(buzzerPin, OUTPUT);
  digitalWrite(greenLED, HIGH);
  digitalWrite(redLED, HIGH);
  Serial.begin(9600);
}

void loop() {
  // read the input on analog pin 0:
  int sensorValue = analogRead(rainPin);
  Serial.print(sensorValue);
  if(sensorValue < thresholdValue){
    Serial.println(" - Doesn't need watering");
    digitalWrite(redLED, HIGH);
    digitalWrite(greenLED, LOW);
    digitalWrite(buzzerPin, LOW); // Turn off the buzzer
  }
  else {
    Serial.println(" - Time to water your plant");
    digitalWrite(redLED, LOW);
    digitalWrite(greenLED, HIGH);
    digitalWrite(buzzerPin, HIGH); // Turn on the buzzer
    delay(1000); // Sound the buzzer for 1 second
    digitalWrite(buzzerPin, LOW); // Turn off the buzzer
    delay(500); // Delay before checking again
  }
}