Comments on: Use LM393 IR Module as Motor Speed Sensor https://www.teachmemicro.com/lm393-ir-module-motor-speed-sensor/?utm_source=rss&utm_medium=rss&utm_campaign=lm393-ir-module-motor-speed-sensor Microcontroller Tutorials and Resources Sun, 28 Jun 2026 01:24:29 +0000 hourly 1 https://wordpress.org/?v=7.1 By: Magarajeswari Ramasamy https://www.teachmemicro.com/lm393-ir-module-motor-speed-sensor/#comment-51309 Fri, 08 Nov 2019 06:23:37 +0000 https://www.teachmemicro.com/?p=3469#comment-51309 We have purchased a dc motor with a speed of 240 rpm . The link for the motor is attached for your refernce:
https://www.amazon.in/ElectroBot-Wheel-Chassis-Encoder-Arduino/dp/B072XPS46H?tag=googinhydr18418-21.

I have watched your video and you are using the same motor. But in the output video the rpm of the motor is shown in the range of 1200. Please clarify whether both rpm must match or different?. If they are different which is the actual rpm of the motor.

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