Digital Tachometer Using IR Sensor with Arduino

We have designed Digital Tachometer using an IR Sensor with Arduino for measuring the number of rotations of the rotating Motor in RPM. Simply we have interfaced the IR sensor module with Arduino and the 16*2 LCD module for display. The IR sensor module consists of IR Transmitter & Receiver in a single pair that can work as a Digital Tachometer for speed measurement of any rotating object.

The Tachometer is an RPM counter which counts the no. of rotation per minute. There are two types of tachometer one mechanical and another one is digital. Here we are going to design an Arduino-based digital tachometer using an IR sensor module to detect objects for count rotation of any rotating body. IR transmits IR rays which reflect back to the IR receiver and then IR Module generates an output or pulse which is detected by the Arduino.