Example Code
Sets pin 2 to the same value as pin 3, declared as an input.
int ledPin = 2; // LED connected to digital pin 13
int inPin = 3; // pushbutton connected to digital pin 7
int val = 0; // variable to store the read value
void setup() {
pinMode(ledPin, OUTPUT); // sets the digital pin 13 as output
pinMode(inPin, INPUT); // sets the digital pin 7 as input
}
void loop() {
val = digitalRead(inPin); // read the input pin
digitalWrite(ledPin, val); // sets the LED to the button's value
}
