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June 18, 2010 AT 12:00 am

Homemade (AVR) speedometer

Pt 10106

Homemade (AVR) speedometer via HaD. Howie writes –

My speedo cable snapped. Boo. The speedo was never very accurate anyway, so rather than replace the cable I figured it’d be fun to try making a digital speedo – plus it’s an opportunity to try using surface mount components rather than the bigger through-hole ones I’ve used so far. A bit of an ambitious design this time round – separate display and control boards, bigger and more complicated than anything I’ve done to date


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