Components Aftermarket tachometer Arduino - 1 pcs TIP-120 Darlington Transistor - 1 pcs 2.2Kohm resistor - 1 pcs Wires 12V diode (~1W) - 1 pcs 12V Power supply - 1 pcs - My own tach consumption was ...

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 ...

Troubleshooting Make sure you have configured the sketch Using a multimeter : Measure your power source, you should read 12v, if not change your power source Measure the arduino output signal, you ...