RPM Measurement Using Optical Interrupter Switch
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 with Arduino and measure the speed of a motor in second , Minute and revolution encoder Slot count.
https://www.dofbot.com/post/rpm-measu...
