def main():
	init()
	stdscr = curses.initscr()
	curses.echo()
	try:
		while True:
			c = stdscr.getch()
			if c == curses.KEY_LEFT:
				forward()
			elif c == curses.KEY_RIGHT:
				back()
			else:
				print "not arrow"

	except KeyboardInterrupt:
		gpio.cleanup()
		print "Bye"
		sys.exit()

main()