// Pushbutton sketch: a switch is connected to pin 2 lights the LED on pin 13
// (or) Control an LED connected to pin-13 w.r.to. a switch connected to pin-2
// with the help of external resister

const int ledPin = 12; // choose the pin for the LED
const int inputPin = 2; // choose the input pin (for a pushbutton)
void setup() 
{
pinMode(ledPin, OUTPUT); // declare LED as output
pinMode(inputPin, INPUT); // declare pushbutton as input
}
void loop()
{
int val = digitalRead(inputPin); // read input value
	if (val == HIGH) // check if the input is HIGH
	{
	digitalWrite(ledPin, HIGH); // turn LED on if switch is pressed
	}
	else
	{
	digitalWrite(ledPin, LOW); // turn LED off
	}
}