Design an Automatic Power on OFF system using Arduino Uno and Relay module #71

Activity

1. cksajil commented on Jun 13, 2024

   

   cksajil

   on Jun 13, 2024

   Last edited by cksajil

   OwnerAuthor

   More actions

   const int relayPin = 3;       // Pin connected to the relay module
   
   void setup() {
     pinMode(rainSensorPin, INPUT);
     pinMode(relayPin, OUTPUT);
     digitalWrite(relayPin, LOW); // Ensure the relay is initially off
   }
   
   void loop() {
     int sensorValue = digitalRead(rainSensorPin);
     
     if (sensorValue == LOW) { // Rain detected
       digitalWrite(relayPin, HIGH); // Turn on relay (and thus the Raspberry Pi)
     } else {
       // Add delay functionality so that the Pi turns off itself based on inference values after some time
       digitalWrite(relayPin, LOW); // Turn off relay (and thus the Raspberry Pi)
     }
   
     delay(1000); // Check every second
   }