How to turn an inexpensive bike computer into an expensive Cadence Meter

Getting a chance today to do something I love to do, that’s talk about the mathematics, physics, and physiology of bike riding. Today I want to do something that has not been done to my knowledge and that is to convert a cheap, or at least, inexpensive cycle odometer, speedometer, computer into a more expensive cadence meter. I’m going to do that by changing the way we do the measurement of the going around and around of the front wheel to going around and around of the pedal.
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