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View Full Version : CDI (Capacitor discharge ignition) Rpm meter


tomskk
Oct 06, 2005, 05:49 AM
Has anybody tried to build a circuit to measure the RPM from CDI ignition?

How high is the voltage that comes from the magnet? Is it possible to use this voltage directly on the PIC MCU I/O pin to measure the pulses (RPM) and send it to the LCD display?