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P1 Quadrature Encoder Demo — Parallax Forums

P1 Quadrature Encoder Demo

Hi everyone,

I'm working on a program, using the P1 Propeller Project Board USB, that will be using a KY-040 Rotary Encoder to allow a user to turn the encoder's dial to select an 8-bit binary number that will then be sent to a SPI object that will output it to LED's.

Does anyone have a P1 Quadrature Encoder Demo that I could look at to get a better idea of how the rotary encoder works, how I need to connect the bits, and how I can send the user's input to the SPI?

Thank you for the help!

Zach

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