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 ...

Digital Tachometer using an IR Sensor with the help of Arduino for measuring the number of rotations of the rotating Motor in RPM. Here we have interfaced the IR sensor module with Arduino and the ...

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 ...