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Hackaday

A Modular Macro Keypad

A new modular macro keypad called suutari20 uses 3.5 mm jacks and an RP2040 microcontroller to offer a customizable and affordable way to create custom keyboard layouts. It allows users to add up to 18 keys with simple hardware and QMK firmware. The design is open and easy to build with 3D printed cases and common audio components.

What happened

A creator designed a modular macro keypad using 3.5 mm jacks and an RP2040 microcontroller, allowing users to build custom key layouts with simple and affordable hardware.

Why it matters

This project shows how accessible and flexible custom hardware can be, offering a low-cost way for people to personalize their input devices for specific tasks.

Why it belongs here

The project highlights the power of open-source tools and modular design, giving individuals the ability to create and customize tools that fit their needs.

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