< Back You are here: KB Home Products DIY STM32 Nucleo Dev Kit STM32 Dev Kit Expansion Board - Rick Lull Print STM32 Dev Kit Expansion Board – Rick Lull Posted2019-02-26 Last Updated On2019-02-27 ByDavid Harris Rick has made an extension board for Balazs’s Nucleo motherboard. Bare motherboard with multiple I/O. Extension board attached to stuffed motherboard. Nucleo plugged in.