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Source Code:- int rainmodule = 0; int buzzer = 1; int led = 2; int Rain = HIGH; void setup() { pinMode (rainmodule, INPUT); pinMode (buzzer, OUTPUT); pinMode (led, OUTPUT); } void loop() { Rain = digitalRead(firesensor); if (Rain== LOW) { digitalWrite(buzzer, HIGH); digitalWrite(led,HIGH); } else { digitalWrite(buzzer, LOW); digitalWrite(led,LOW); } }