Keyboard Builders' Digest
Save 5% at — discount code: KBDNEWS
Keyboard Builders' Digest / Tips & Tricks

USB-C Pro Micro size comparison

Fantastic-Onion4292 posted some photos of the new USB-C Pro Micro compared to the classic one.

Published on September 26, 2021 by

The first Pro Micros with USB-C connector emerged last week on r/mk and Fantastic-Onion4292 was kind enough to put the two versions next to each other to shoot some comparison photos:


As you can see, the pin arrangement is identic, however, the USB-C one has a 1.9 mm longer PCB (33.0 vs 34.9 mm).

Both are sold for about $6, e.g. here on Aliexpress.

(Note to myself: I have to update some of my old tutorials referring to $3 Pro Micros – the usual price pre-covid.)

It's fun though that, at least according to the customer reviews on Aliexpress, this USB-C model already started shipping half a year ago - the firs comment appearing on 1st April this year.)

Published on Sun 26th Sep 2021. Featured in KBD #45 (source).


Elite-C holder PCB

Elite-C holder PCB for Dactyl-like cases with audio jack, M4 screw holes, reset button, RGB output by Fmcraft (git).

Waterproofing a nice!nano

ELr3ddit applied a silicone coating to an exposed nice!nano to make it waterproof.


RP2040 Stamp

The RP2040 Stamp is a RP2040-based controller with LiPo charger and Neopixel – breaking out all GPIO pins.


USB-C Pro Micro issues

Difference in routing of some USB-C Pro Micro clones reported by hellmoneywarriors.


Adafruit KB2040 controller

Adafruit announced the preliminary pinouts of its RP2040 based KB2040 controller: the Keeboars.