Button

Turns on and off a LED, when pressing button attach to pin 7

hardware

• Arduino Board
• Button Board

wire

• SIG 7
• VCC S
• GND -

code

const int keyPin = 7;
const int ledPin = 13;
void setup() {
  // put your setup code here, to run once:
  pinMode(keyPin, INPUT);   // Initialize the key pin as input
  pinMode(ledPin, OUTPUT);  // initialize the led pin as output
}

void loop() {
  // put your main code here, to run repeatedly:
  boolean Value = digitalRead(keyPin);  // read the state of the key value
  // and check if the key is pressed
  // if it is, the state is HIGH
  if (Value == HIGH) {
    digitalWrite(ledPin, LOW);  // turn on the led
  } else {
    digitalWrite(ledPin, HIGH);  // turn off the led
  }
}