[Martyn] is restoring a 32-year-old Honda motorcycle, so when the ancient speedometer broke last year he thought it was prime time to start of a digital speedometer project. We’re loving the results ...

It is pretty easy to go to a big box store and get a digital speedometer for your bike. Not only is that no fun, but the little digital display isn’t going to win you any hacker cred. [AlexGyver] has ...

This is an Arduino Pro Mini project for correcting a speedometer when you change tire size or differential gearing. It was initially designed for a Jeep Wrangler TJ (1997-2006). It may also work on ...

The code will give you the option to select between K/m and mph. The wiring diagram is for Arduino nano. The CH341SER.exe is needed if you receive COM port error when ...