Fibs on beaglebone!

fibs_blink.js

var b = require('bonescript')

var state0 = b.LOW

b.pinMode("USR0", b.OUTPUT);
b.pinMode("USR1", b.OUTPUT);
b.pinMode("USR2", b.OUTPUT);
b.pinMode("USR3", b.OUTPUT);

function set_pins(w,x,y,z) {
  w == 1 ? b.digitalWrite("USR0", b.HIGH) : b.digitalWrite("USR0", b.LOW);;
	x == 1 ? b.digitalWrite("USR1", b.HIGH) : b.digitalWrite("USR1", b.LOW);
	y == 1 ? b.digitalWrite("USR2", b.HIGH) : b.digitalWrite("USR2", b.LOW);
	z == 1 ? b.digitalWrite("USR3", b.HIGH) : b.digitalWrite("USR3", b.LOW);
}

var fibs = [1,1];
var current = 0;

function increment() {
	set_pins(0,0,0,0)
	if (fibs.length == current) {
		fibs[current] = fibs[current - 1] + fibs[current - 2];
	}
	console.log("c: " + current + " -> " + fibs[current]);

	set_pins(
		(fibs[current] >> 3 & 1),
		(fibs[current] >> 2 & 1),
		(fibs[current] >> 1 & 1),
		(fibs[current] >> 0 & 1));

	current = (current + 1) % 7;
}

setInterval(increment, 500);