led()

led(int led, [bool state])

Returns bool

The led function can be use to read and write the leds or lights.

The first argument is an integer, 0, 1 or 2 to select the led.

The second argument is to write the state of the led and can be set to HIGH or LOW, but also to its equivalents true and false or 1 and 0. You might see any of these systems used in the example code. If no second argument is used, this function only returns the current state of the selected led.

Example:

void loop() {
  
  // if the button is held down
  if (tlob.buttonDown){
     // turn the first led on
    tlob.led(0, HIGH);
  } else {
    // turn the first led off
    tlob.led(0, LOW);
  }

  // update the button state
  tlob.update();
}

In order to toggle the led, so as to turn it on if it was off or off if it was on, you can read the current state and use ! to get the opposite of that.

void loop() {
  
  // if the button is pressed
  if (tlob.buttonPressed){
     // toggle the first led
    tlob.led(0, !tlob.led(0));
  } 

  // update the button state
  tlob.update();
}