function set_led(pos, time){
	var a=pos*0.1+time*2;
	var r=sin(a)*127+128;
	var g=sin(a+2.1)*127+128;
	var b=sin(a+4.2)*127+128;
	led_set_rgb(r, g, b);
}



function main() {

	register_led_cb(set_led);

}