Somebody was asking me today about making an RPM shift light that flashes when you reach peak power on a vehicle.
I was wondering if anybody had any ideas where to begin?
I had thoughts about using a frequency comparitor.
Some seem to pickup the alternator signal from the power lines. How can i do this?
I was wondering if anybody had any ideas where to begin?
I had thoughts about using a frequency comparitor.
Some seem to pickup the alternator signal from the power lines. How can i do this?