writing modules using new feature class

Here is one more I named LED. It is a very simple class the can handle three led states:

on / off / blink( duration in ms for off and on)

Some led are switched on with Pin.write(1) and some with Pin.write(0) thats why the constructor needs two parameter, one for the pin and one for the value used to switch the led on.

class LED {
      constructor(led, on) {
        this.led = led;
        this.ON = on;
        this.id = 0;
      }
      on() {
        this.off();
        this.led.write(this.ON);
      }
      off(){
        if ( this.id ) {
          clearInterval(this.id);
          this.id = 0;
        }
        this.led.write(!this.ON);
     }
      blink(t){
        this.off();
        this.id = setInterval(function(led){led.toggle();},t, this.led);
      }
}

Code to test class LED on a Pico

/* Pico 
LED1  red
LED2  green
*/

led1 = new LED(LED1, true);
led1.blink(500);

led2 = new LED(LED2, true);
led2.blink(250);

// stop after 10 sec
setTimeout(function(){led1.off();led2.off();},1E4);

Hope it is useful ;-)