Espruino/libs/js/banglejs/LED1.min.js

(function(){return{_v:!1,read:function(){return this._v},set:function(){this.write(1)},reset:function(){this.write(0)},write:function(a){g.setColor((this._v=!!a)?"#f00":g.theme.bg).fillCircle((g.getWidth()-20)/2,5,5).flip()},toggle:function(){this.write(!this._v)}}})