const int buttonPin = 27;  // the number of the pushbutton pin located from Quentorres Data Sheet
const int ledPin = 26;    // the number of the LED pin located from Quentorres Data Sheet

int buttonState = 0;  // variable for reading the pushbutton status
int LEDState=0; // variable for reading the LED status

void setup() {
  // initialize the LED pin as an output:
  pinMode(ledPin, OUTPUT);
  // initialize the pushbutton pin as an input:
  pinMode(buttonPin, INPUT);
}

void loop() {
  // read the state of the pushbutton value:
  buttonState = digitalRead(buttonPin);
  if (buttonState==HIGH){
    // read the state of the LED value:
    // read the state of the LED value:
      LEDState = digitalRead(ledPin);
      if (LEDState==HIGH){
      digitalWrite(ledPin,LOW);
      } else {
      digitalWrite(ledPin,HIGH);
      }
  }
}