[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 ...

[Bill2009] has made some nice progress on a control panel for his motorcycle over at the arduino.cc forums. It can show speed, tachometer readings for the wheel and engine, as well as indicate the ...

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 ...