I need the exact circuit design (gerber) for a adjustable rev limiter, like the Bee*R Rev limiter. It is intended to cut the ignition at a specific RPM setting. Of course in a way the engine will not be damaged. Again take the Bee*R (Specifically the type H) as an example. The RPM setting must be set with a rotary switch (not a potentiometer!). If any a microcontroller is used, this can only be a PIC with code written in C.