// Program toogle Switch On - Switch Off
int buttonPin = 7; // the pin that the pushbutton is attached to
int ledPin = 13; // the pin that the LED is attached to
int buttonState = 0; // current state of the button
int lastButtonState = 0; // previous state of the button
int buttonPushCounter = 0; // counter for the number of button presses
void setup() {
 pinMode(buttonPin, INPUT);
 pinMode(ledPin, OUTPUT);
}
void loop() {
 buttonState = digitalRead(buttonPin); // membaca nilai tombol tekan (sensor digital)
 if (buttonState != lastButtonState) { // jika nilai sekarang tidak sama dengan nilai terakhir

 if (buttonState == HIGH) {
  buttonPushCounter++;
 }
 }
 lastButtonState = buttonState;

 if (buttonPushCounter % 2 == 0) {

 digitalWrite(ledPin, HIGH);
 }
else {
 digitalWrite(ledPin, LOW);
 }
}