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/*Arduino Rain Sensor sketch*/
int rainsense= 0; // analog sensor input pin 0
int buzzerout= 10; // digital output pin 10 - buzzer output
int countval= 0; // counter value starting from 0 and goes up by 1 every second
void setup(){
Serial.begin(9600);
pinMode(buzzerout, OUTPUT);
pinMode(rainsense, INPUT);
}
void loop(){
int rainSenseReading = analogRead(rainsense);
Serial.println(rainSenseReading); // serial monitoring message
delay(250);// rain sensing value from 0 to 1023.
// from heavy rain - no rain.
if (countval >= 35){
Serial.print("Heavy rain");
digitalWrite(buzzerout, HIGH); //raise an alert after x time
}
//raining for long duration rise buzzer sound
// there is no rain then reset the counter value
if (rainSenseReading <350){
countval++; // increment count value
}
else if (rainSenseReading >350) { // if not raining
digitalWrite(buzzerout, LOW); // turn off buzzer
countval = 0; // reset count to 0
}
delay(1000);
}
