I'm trying to make a gauge cluster for my older motorcycle. I was going to use a hall effect with a magnet on the timing wheel (a wheel that spins 1RPM per 1 engine RPM) but as soon as I turned the engine on the hall effect went nuts. The ignition coils and spark plugs are causing a lot of noise! H…

Motorcycle Tachometer help

deaurgtehne May 18, 2012, 2:32pm 3

Excuse my ignorance, but why not use a Reed switch? Which is what I am currently doing.

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