Microcontrollers

Elite-Pi - USB-C Pro Micro Replacement RP2040 Controller

Elite-C V4 - USB-C Pro Micro Replacement ATmega32u4

Pro Micro (USB-C Version) - 5V/16MHz - Arduino-compatible ATmega32U4

Pro Micro (Micro-USB) - 5V/16MHz - Arduino-compatible ATmega32U4

RP2040 Pro Micro 16MB/128Mbit USB-C Controller

SuperMini nRF52840 Pro Micro Bluetooth LE (BLE) Controller

Stampy - RP2040 USB-C Controller Board for Handwiring

Stampy Prototypes - RP2040 USB-C Controller Board for Handwiring

QMK Proton C

Postage Board Mini - USB-C Controller Board for Handwiring