Electronic knobs are everywhere, and today we will learn how they work and how you can use them with a microcontroller. We will even build our own rotary encoder at home. Thanks for watching, and let me know in the comments if you have any questions!

Companion article: http://www.friendlywire.com/tutorials...

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Timestamps:

00:00 Introduction
00:47 How do rotary encoders work, and what is Gray code?
02:57 Inside a rotary encoder
04:22 Homemade rotary encoder
04:58 Idea for schematic
05:34 What you need to build this circuit yourself
05:59 Final schematic
06:43 Construction on the breadboard
08:25 Writing the program for the PIC16F1455
08:49 Writing the program: main ideas
12:39 Flashing the .hexfile onto the PIC16F1455
13:39 Using the homemade rotary encoder
13:52 Final thoughts