Rain Detection System Using Arduino

1#define RAIN_SENSOR A0
2#define BUZZER 9
3 
4void setup() {
5    pinMode(RAIN_SENSOR, INPUT);
6    pinMode(BUZZER, OUTPUT);
7    Serial.begin(9600);
8}
9 
10void loop() {
11    int sensorValue = analogRead(RAIN_SENSOR);
12    Serial.println(sensorValue);
13    
14    if (sensorValue < 102) { // Threshold for rain detection
15        digitalWrite(BUZZER, HIGH);
16    } else {
17        digitalWrite(BUZZER, LOW);
18    }
19    delay(1000); // Delay for stability
20}