v
	version info.

	r
	reset I've taken out so much config stuff it pretty much turns all the pins high and turns command acknowledgments on.

	cu,parameter,value (?)
	unchanged, turns command acknowledgments off and on
 
	o,a,b,c,d,e,f,g
	changes all the output pins. subtracting in binary and converting to decimal made my head hurt, so the active low is hidden in the firmware.
	o,15,15,15,15,15,15,63 turns all the LEDs on (pins low)
	o,0,0,0,0,0,0,0 turns all the LEDs off (pins high)
	o,9,2,4,6,0,0,0 is both red on a, green on b, yellow on c, green and yellow on d.
	

	p,port,pin,value
	controls a single pin.
	p,a,0,0 turns on the first LED.
	p,a,0,1 turns off the first LED.
	p,a,0,2 reports the state of the first LED.

	...that may be all of them, now...