One-Key Keyboard with Breathing LED
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Here is how to build a custom one-key keyboard with a breathing LED light using an Arduino Pro Micro and 3D printing
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Updated at source:
Model information
- Source
- Printables
- Category
- Computers
- License
- Creative Commons — Attribution
Why Build This?
I use Raycast almost every day and wanted a dedicated one-key keyboard for it. With various micro controllers, key switches, and a 3D printer in hand, creating one seemed straightforward.
My goal was to design a keyboard that looks good and is simple.
Full article instruction on my website.
Materials
For this project, you will need:
Components:
- 1 Arduino Pro Micro
- 1 Mechanical keyboard key switch (blue or any other type)
- Wires
- 1 LED
- 1 200 Ohm Resistor
- USB A to Micro USB cable
Tools Required:
- 3D Printer
- Soldering iron
Design Process
I used Fusion 360, which is free for personal hobby projects, to design the 3D model. It took several iterations to find the right shape and size for comfort and to fit all components.