STeMCell STM32F411 Controller USB Type C

STM32 breakout in promicro footprint with USB-C connector. Designed for use in custom mechanical (split) keyboards, but many other uses are possible.

Features

• Version: 2.1.0
• Pro micro footprint
• STM32F4x1 series MCU
• Support half duplex USART communication in any of D0, D1, D2, D3 using jumpers
• Onboard switch to enable/disable USB DFU bootloader
• Inbuilt TX pullup for UART half duplex communication
• User LED on PA8
• Extra 5 pinout on bottom like Elite C
• Supports QMK and ZMK 

Programming

You have a few options for putting the STeMcell into flashing mode

• Short RST and GND pins on the controller itself
• Double tap the physical reset switch on the keyboard pcb itself
• Use the QMK reset keycode

Dimensions