#define RAIN_SENSOR_PIN  25 
#define LED_PIN_R          23 
#define LED_PIN_G          26 
#define LED_PIN_B          27 

int rain_state; 

void setup() {
  Serial.begin(9600);              
  pinMode(RAIN_SENSOR_PIN, INPUT); 
  pinMode(LED_PIN_R, OUTPUT);        
  pinMode(LED_PIN_G, OUTPUT);        
  pinMode(LED_PIN_B, OUTPUT);        

}

void loop() {
  rain_state  = digitalRead(RAIN_SENSOR_PIN); 

  if (!rain_state) { 
    Serial.println("Rain detected!");
    digitalWrite(LED_PIN_R, LOW); 
    digitalWrite(LED_PIN_G, LOW); 
    digitalWrite(LED_PIN_B, HIGH); 
    delay(1000);
  }
  else{ 
    Serial.println("Rain stopped!");
    digitalWrite(LED_PIN_R, LOW);  
    digitalWrite(LED_PIN_G, HIGH); 
    digitalWrite(LED_PIN_B, LOW); 
    delay(1000);
  }
}