Bicycle odometer and speedometer showing distance traveled, average and current speed (in km/hr), time and can store up to 99 laps.
Project in progress by alan_dewindt
Measure rotation speed (RPM) with Optocoupler and Encoder disk and Arduino - Quick and Easy!
by Boian Mitov
Make a cool speedometer for bikes or any automotive by using Arduino, Bluetooth, and an Android Application.
Project tutorial by user334153146
While debouncing needs improvement, it's a good start to understand interrupts!
Project showcase by John Boxall and CesareBrizio
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