const int switchPin = 4; //Switch Connected to PIN 4
const int ledPin = 8; //LED Connected to PIN 8
int switchState = 0; // Variable for reading Switch status
void setup()
{
pinMode(ledPin, OUTPUT); //LED PIN is Output
pinMode(switchPin, INPUT); //Switch PIN is input with PULLUP
}
void loop()
{
switchState = digitalRead(switchPin); //Reads the status of the switch.
if (switchState == LOW) //If the switch is pressed
{
digitalWrite(ledPin, HIGH); //LED ON
delay(3000); //3 Second Delay
digitalWrite(ledPin, LOW); //LED OFF
}
}