A tachometer measures the rotation speed of motors and other machinery. There are various types of tachometers. Described here is a digital non-contact type tachometer using a proximity sensor. Circuit and working The circuit diagram of the Arduino-based tachometer is shown in Fig. 1. It is built around Arduino Uno board (Board1), inductive pnp-type normally-open […]
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Credit- EFY. Published by Department of EEE, ADBU: tinyurl.com/eee-adbu
