Paul,


   I set up the aluminum disc and taped a nut to the circumference and position the RX-8 sensor and connected it to a scope.

   This was chucked up into an old drill press and I measured the spindle speed with an optical tach from Harbor Freight.

   The 500 rpm speed yielded a 2.5 volt pulse and a 4.25 volt pulse at 1350 rpm.

   I was testing a 2^nd gen CAS using the same setup and got similar results and when I connected it to the  Zeal Daughter board it cleaned it up and kept the pulses at the same voltage level.

   Currently working on brackets to position the sensors out of the way and 180 degrees apart.


   Joe Berki

   Good work Joe.

   When you feed this into a LM1815 you get a nice positive going narrow rectangular
   wave out at a constant 5 volts high.


   Paul Lamar

Joe model of MegaSquirt are you running?

Steve Carlisle


The Zeal board just have the LM1815 on the board.
If you using the complete mega squirt I am waisting my time.

Paul Lamar


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