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From this view we would think the handmade wooden roadster (translated) was street legal. But it’s missing a few items that are required to take it out on the highway. The teenagers that built it were pulled over the other night (translated) and cited for driving without a speedometer or side indicator lights. The image above shows the [...]

Tags:  view roadster street indicator-lights street-legal speedometer transportation hacks  

[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 so far, and would love seeing it on a nicely restored bike. Instead of the relative horror of driving 40 LEDs with a [...]

Tags:  digital arduino speedometer digital-speedometer honda-motorcycle transportation hacks  

[Ah2002] didn’t like the shaky needle in his car’s speedometer so he replaced it with a ring of LEDs. The old speedometer had a cable which rotated along with the gearbox for mechanical speed measurement. By connecting the stepper motor from a printer instead of this cable, a voltage is generated that fluctuates with the [...]

Tags:  needle leds speedometer speedometer-needle speed-measurement mechanical-speed transportation hacks  

[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 tipped us off he mentioned that this is Arduino powered and uses a hall effect sensor. There’s not talk of this in his writeup but we [...]

Tags:  truck replacement speedometer howard speedometer-cable hall-effect-sensor writeup transportation hacks