Piggyaxe binary timer kit piggyaxe p a kit of parts to build a simple but very unusual and eye catching circuit a binary timer display just like a binary clock you have to do some mental maths to work out how long you are setting the timer for p p to make the complete timer you will also need a 14m2 motherboard kit 70 1063 p p the binary timer display pcb lends itself to any projects that need 8 or 9 leds and has sound capability which is shared with an analogue input it mak