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40% mechanical keyboard with rgb underglow and single color backlight
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README.md

CPM43

40% Mechanical keyboard PCB

Frontside Render Frontside Render Frontside Render

Layout

Features

  • In-switch LED support.
  • Individually addressible RGB underglow provided by 14 separate WS2812B LEDs.
  • USB Type-C connector on the left side.
  • Compatible with Cherry MX and ALPS switches.
  • Integrated 16MHz Atmega32u4 microcontroller for better QMK compatibility.
  • USB ESD protection circuit.
  • ICSP programming header just in case you try something a bit too extreme and need to unbrick it.
  • 0805 SMD and through hole Diode/resistor compatibility for ease of assembly.
  • USB breakout for extra redundency.

Warning

KiCad 5 or above is needed to open this project. KiCad 4 or below won't work.

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