Re: Audio Tachometer for 2 stroke engine

From: "BobG" <bobgardner@xxxxxxx>
Date: 24 Apr 2005 09:59:04 -0700

Oh you old guys are just full of crap. A 50 cent electret mic in a
plastic bag and an opamp preamp into an edge detect on a pic would work
just fine. Just measure the period of the zero crossings of the pops
and log the max values into eeprom every second or so. You near
Orlando? I'll help you with this project no prob.

.

Follow-Ups:
- Re: Audio Tachometer for 2 stroke engine
  - From: John Larkin

References:
- Audio Tachometer for 2 stroke engine
  - From: Mook Johnson

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