Nopixel
An easy way to control interactive displays
Installation
npm install nopixel
Usage
var Nopixel = require('nopixel');
var nopixel = new Nopixel('/path/to/config.json');
nopixel.on('clicked', function(eventDetail) {
nopixel.setPixel(eventDetail.x, eventDetail.y, "red").update();
})
Buttons should turn red when you press them.