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 ...

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 measured to ...

Posted in Arduino Hacks, clock hacks Tagged arduino, clock, digital gauges, ds1307, rtc, tachometer ← Inventors Chasing Their Dreams; What It’s Like To Quit Your Job And Hack ...

A Nixie tachometer is new to us. We’ve seen tons of various displays, but not a tachometer. After having extensive annoyances with the factory ignition timing system in his totally awesome ...

A tachometer measures the rotation speed of motors and other machineries. Described here is a digital non-contact type tachometer using a proximity sensor.

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 ...