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https://github.com/jagot/orpheus-alpha-ctrl


https://github.com/jagot/orpheus-alpha-ctrl

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README

        

#+TITLE: Ορφέας Άλφα controller
#+AUTHOR: Stefanos Carlström
#+EMAIL: [email protected]

Small breakout board for a NodeMCU microcontroller to be used in
conjunction with a [[http://github.com/jagot/orpheus-alpha][Ορφέας Άλφα]] preamplifier. The board provides
connectability to a rotary encoder and an optional Neopixel ring (for
e.g. volume level display). Since the NodeMCU provides WiFi connection
as well, the board can (if desired) be used without a rotary encoder.

[[orpheus-alpha-ctrl.pdf][Schematic]]

[[orpheus-alpha-ctrl.png]]