![]() Required Components for Arduino TachometerĪs shown in the above tachometer circuit, it contains Arduino Pro Mini, IR sensor module, buzzer and LCD. So we have done some changes that is given below: RPM= Count x 12 for single object rotating body.īut here we demonstrate this project using ceiling fan. It counts continuously for 5 seconds.Īfter 5 seconds arduino calculate RPM for a minute using given formula. As IR transmits IR rays which reflect back to IR receiver and then IR Module generates an output or pulse which is detected by the arduino controller when we press start button. Here we are going to design an Arduino based digital tachometer using IR sensor module to detect object for count rotation of any rotating body. There are two types of tachometer - one is mechanical and the other one is digital. Tachometer is a RPM counter which counts the no. ![]()
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