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… ...

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 should read 2.5 to ...

A 16x2 LCD is connected with arduino in 4-bit mode. Control pin RS, RW and En are directly connected to arduino pin 2, GND and 3. And data pin D4-D7 is connected to pins 4, 5, 6 and 7 of arduino. A ...

The fan TACH output is read and the fan RPM is automatically calculated and displayed. A separate FAN_TACH_LAMP pulse of variable pulse width is generated and is used to strobe the fan using LEDs for ...

10 thoughts on “ Arduino Tachometer Clock Fires On All Cylinders ” Cray says: January 18, 2019 at 1:20 pm What digital gauge has he used ? Report comment. Reply. Saabman says: ...