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. If your ...

This project brings your car's engine to life with a real-time RPM display on a 7-segment display using an Arduino Uno and a SparkFun UART board. Take it for a spin and see your engine roar to life ...