Connection with Espruino

Hi Ollie, thanks for you answer. Yes, my note was connected to the puck. However, I still not figure out how to use the functions to handle the puck features.

I know that I have to use Puck.write and describe the function that I wanna use in the puck and than the callback. However, I cant for example call 'Puck.on('mag',function(xyv) {' using write. Can I? I saw in examples on internet connecting through IDE that the pages call the functions of puck directly. Like

var  on = false;
setInterval(function() {
  on = !on;
  LED1.write(on);
}, 500);

How I can use javascript like that in my code? Can I?

Thanks Again