How Rotary Encoder Works and How To Use It with Arduino

In this tutorial we will learn how rotary encoder works and how to use it with Arduino. A rotary encoder is a type of position sensor which is used for determining the angular position of a rotating shaft.

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[ricardocalletejada]

This is better than searching for confusing datasheets on the website. THANK YOU A LOT

[jp]

WOW. Finally I understand the rotary encoder logic. Best explanation I have run into in 10 years. Your description turned on the big light bulb on in my brain and I understand it now. The code is so simple too.

[fanBladeOne]

Thanks once again for a greatly instructional video. After watching not only do you understand the principle behind it, you also have a piece of working code at the ready. Thanks alot :)

[bcinsteadof]

Wow, such elegant code...My overly complex code didn't work well when I spun the encoder quickly, this works flawlessly. Thanks!

[OMNI_INFINITY]

*Thanks! Recommend making a video on controlling position of a continuous servo using a continuous rotary encoder!*

[sub-arts]

well done. thats the best explanation for rotary encoder i ve seen so far

[slimydroid]

Many thanks for the clear guide on how encoders work, I found the animated graphics particularly useful.

[badbush]

Fantastic! Looking at pictures of waves just didn't do it for me. This video completely cleared it up. Thank you! Subscribed.

[jaimeriquelme]

Thanks Mechatronics for your time and work. From Sydney all the best. 👍

[cdweng]

Brilliantly explained from theory to application. Well done!

[jeffbeck]

Thank you. Your code worked. I thought that Kevin Darrah's code using interrupts was working for me but it was not. It was skipping all around but your code works perfectly for me with no skipping at all. How u do dat? Thanks man.

[sgtrumbi]

Just plain and simple explanation. Great video, exactly what I was looking for. Thank you so much! 😊

[endingalaporte]

suscribed, videos are very good, I'm studying mechanical engineering, have to choose If I want to specialise in Mechatronics, your videos help me a lot in my choice, very cool

[LifeGeneralist]

Can you do a video on measuring the angle of rotation of the stepper if connected the encoder to the shaft of the stepper and if the shaft is rotated manually?

[mrcalico]

Great Job, articulate and directly to the point.  Thank You!

[voxellab]

Dejan, Great video! thank you. Got it to work. If I turn the dial to quick the nema jump, not smooth and has a pause when reveres. I've tried trimming the drive board and the delay times. Any idea?, thanks again for all you great work.

[mgga]

Hi Dejan, thanks for sharing this helpful tutorial, I would like to use a rotary encoder to replace the menu navigation buttons in my project, your video is very useful.

I notice that you did not appear to implement any software de-bouncing techniques to overcome the switch noise, yet your example did not appear to suffer from switch bounce. Did you use a hardware filter of some sort?

Thanks.

[dawidwilk]

Your code working well but you must put it into interrupt event from rising and falling edge caused by A and B signals.

[cakdham]

Awesome explaination.. Regards from Indonesia

[waterman]

your explanations are so clear, makes it easier to understand how this works. thank very much!