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2x2 Button Matrix
I was looking for a wired button matrix to use as a controller for a wearable project, but none of them looked like they would be comfortable to wear or hold. So I designed this one.
I made sure each key had diodes and capacitors, so any click is clear and chording is possible, and the chosen buttons are rated IP67 given that wearables sometimes need to deal with water and rain and dust.
This is the schematic that I used as the base:
2x2 Button Matrix
Project images are for reference only. Actual production is based on the manufacturing files on the project page.
Please review the designer's notes (e.g., PCB thickness) and select the appropriate options.
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