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 ProgrammingYou 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 Dimensions33.7mm (H) x 18mm (W) x 3.2mm (H)Includes1 x STeMCell STM32F411 USB Type C Controller This controller is designed by megamind4089
