It is based on some assembler code I wrote for a PIC years ago, and relies on polling the current state of the two input pins from a rotary encoder, and comparing these two binary bits with their ...

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Taste The Code. How to Use Rotary Encoders and Interrupts With Your Arduino Projects. Posted: June 10, 2025 | Last updated: July 10, 2025. Hi, I'm Bill.

Rotary and linear optical encoders are common in position and motion sensing. ... For each encoder position, there is a different binary output -- shaft position is absolutely determined.