0xCB Pluto, this new development board by 0xCB, is not just Pro Micro compatible but also has all 25 pins of the ATmega32U4 broken out, just like D- and D+.
Teased by Conor in January, the first samples are out for testing, and the files of the Pluto have been published this week too.
electrically and physically compatible with the standard Pro Micro
exposing all 25 available pins
D- and D+ broken out too
featuring USB C
flatter design for tight builds (mid-mount connector)
D- and D+ broken out makes it possible to easily use it with e.g. the unified USB daughterboard.
We do plan on selling it in the future. Just want to get the hype going a bit. ;) […] We will offer them for EU only. But we are in the talks with a vendor in the US. He ships worldwide… – 0xCB-dev
Btw, 25 pins mean 600 switches handled by a single controller board (see the square matrix). :D Just tellin'…
For those who understand German, Jacob and Conor, founders of 0xCB, talk about their startup and mechanical keyboards in general in Trommelspeicher/Das Duumvirat podcast:
Seeed Studio is running a sponsorship campaign of the Seeed Fusion Assembly service offering free PCB prototypes for DIY keyboard projects with a XIAO RP2040 controller included.