Adding support for the Pimoroni Keybow 2040 macropad

[sandyjmacdonald]

Adds support for the RP2040-powered Pimoroni Keybow 2040 macropad. It is a 4x4 ortholinear macropad with per-key RGB lighting. Pins are directly driven by the GPIO pins, rather than in a matrix. The RGB LEDs are controlled by the IS31FL3731 LED matrix driver chip.

Description

The relevant key pins and RGB LED matrix pins are all set up correctly, and a basic two-layer default keymap with a numpad on layer 1 and RGB LED control keys on layer 2 is provided, as well as a Via keymap. A selection of LED animations are added.

Types of Changes

• [ ] Core
• [ ] Bugfix
• [ ] New feature
• [ ] Enhancement/optimization
• [x] Keyboard (addition or update)
• [ ] Keymap/layout/userspace (addition or update)
• [ ] Documentation

Checklist

• [x] My code follows the code style of this project: C, Python
• [x] I have read the PR Checklist document and have made the appropriate changes.
• [ ] My change requires a change to the documentation.
• [ ] I have updated the documentation accordingly.
• [x] I have read the CONTRIBUTING document.
• [ ] I have added tests to cover my changes.
• [x] I have tested the changes and verified that they work and don't break anything (as well as I can manage).

[keyboard-magpie]

23986 is already in progress. Perhaps check diffs against that and add your review there.

(For onlookers, it should be noted that Sandy is one of the core pimoroni team)

[sandyjmacdonald]

23986 is already in progress. Perhaps check diffs against that and add your review there.

(For onlookers, it should be noted that Sandy is one of the core pimoroni team)

Hello, @keyboard-magpie! Long time, no see!

Note to self... check existing PRs before diving headlong into something 😂