In this project, I will talk about Phototransistor Optical Interrupter Switches (Opto Coupler) Module, how this module works and helps in determining the speed of a rotating object and finally I will show you how to Interface Optical Interrupter Switch Sensor. In this project, I will talk about Phototransistor Optical Interrupter Switches (Opto Coupler) Module, how this module works and helps in determining the speed of a rotating object and finally I will show you how to Interface Optical Interrupter Switch Sensor. This tutorial is a comprehensive, practical guide to the Speed Sensor / Tacho Sensor (Slot-Type Optocoupler) (Leobot Product #245). It explains how slot-type optocouplers work, how this module converts mechanical motion into clean digital pulses, how to calculate speed and RPM correctly, and how to. An optocoupler sensor is a gadget that uses “electricity-light-electricity” conversion to keep the input and output circuits electrically isolated. It's made up of a light-emitting diode (the input side) and a photosensitive part (like a phototransistor or IC, the output side). Before we can control the speed however, we need to be able to measure it. You'll also learn multiple techniques for Motor Speed (RPM) Measurement With Arduino & motor encoder (optical encoder).
