This tutorial will guide you through the process of building a tachometer around an Arduino. Tachometers are used to measure rotation rate in Revolutions Per Minute (RPM). You don’t need much in ...

This Arduino based little digital tachometer was originally created for counting the speed of turntables and fidget spinners. There is another application to consider – a rear wheel tachometer for ...

A tachometer used to be an accessory added to the dash of only the sportiest of cars, but now they’re pretty much standard equipment on everything from sleek coupes to the family truckster. I… ...