Thread: Tachometer
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Old 08-06-2009, 10:42 AM
TheE TheE is offline
Motorized Bicycle Elite Member
Join Date: Jun 2009
Location: Canada
Posts: 187
Default Re: RPM-meter

Digital Tachometer Kit

Look in the PDF for the actual schematic. I don't think it includes the hall-effect sensor, so you'd have to add that yourself. The Melexis 90217 is a good one.

Edit: Not to hijack the thread, but could you possibly run an inductor in parallel with the HV spark plug wire to "sense" when it fires the plug? Just a thought.

Last edited by TheE; 08-06-2009 at 10:49 AM.
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