Keyboard Builders' Digest / Tools
RP2040-Zero
The RP2040-Zero is a tiny RP2040 based controller with USB-C and 20(+9) GPIO pins.
Published December 11, 2021
I wasn't aware of this controller until m.ki aka @0002ozlet mentioned it in a tweet about the cool836, a (closed source?) family of 30% keyboards with Alice like layouts.
Features of the RP2040-Zero:
- RP2040 chip
- USB-C
- castellated pads
- 20 easily accessible pins
- 9 additional pins via solder points
- dimensions: 18x23.5mm
- price: $5-12
You can buy the RP2040-Zero on the original Waveshare website, and also on Aliexpress.
It's still difficult to evaluate because I only used it for one of my keyboards, but it may be good because it is easier to handle than a Raspberry Pi Pico or Pro Micro thanks to its small size – m.ki.
Published on Sat 11th Dec 2021. Featured in KBD #56 (source).
Tags: controllerRP2040
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