[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 ...

Turn your Android phone into a speedometer to track current speed, average speed, and get 0-60 mph time and quarter-mile time. Ed Rhee Ed Rhee, a freelance writer based in the San Francisco Bay Area, ...

[Howard] built his own replacement speedometer for his truck after the original speedometer cable broke. He’s using surface mount components and produced a two-board design that is quite nice. When he ...