stan2004 posted:GRJ makes a good suggestion in that module. You could then use a hall-sensor or reed switch to detect motion from a tiny disc magnet fastened to the inside of a wheel.
Cool! I got to thinking too, on the powered unit, an annoying feature is when the set is moving, the lights dim. Of course the key point is when moving here but, could I use board that triggers that feature as power for the spark board? This video shows the dimming. I can open up the car and show the inside if needed.
