4 layers52.5 × 22.9 mm

Feather STM32WB55
makeristic/Feather_STM32WB55
KiCad STM32WB55 Bluetooth development board in the Adafruit Feather form factor, with USB-C and STEMMA QT. Work in progress.
50 parts2MIT
KiCad boards from 2 GitHub repositories tagged “stm32wb55”, the most starred first; open any of them in PCBKit.

makeristic/Feather_STM32WB55
KiCad STM32WB55 Bluetooth development board in the Adafruit Feather form factor, with USB-C and STEMMA QT. Work in progress.

marwantm/STM32-Bluetooth
STM32WB55 Bluetooth development board — KiCad PCB design project