Feather STM32F405 – How did we do? @st_world #STM32F405 #STM32 #STM @adafruit

hi folks, we wanted to make a super fast stm32 based feather and decided to go with the tried and true STM32F405 which is small enough to fit, and super speedy! here’s our first pass at a Feather design – not fully finished (there’s a few more wires to route) but 95% of the way there! please check it out and let us know if you have any suggestions. we put the SD card on the sdio bus, have the two DAC’s on A0 and A1 to match our other feathers, and added some SPI flash (it doesnt seem like the stm32f405 has a qspi peripheral?) it’s 2.0″x0.9″, with USB C and should be compatible with all of our wings.

please check it out and let us know any suggestions or common traps you’ve bumped into with this chip – it could run micropython pretty easily we think! we’ve attached the eaglecad files as well as pdf schematic.

thanks!

Files:
Feather STM32F405 – BRD file and Feather STM32F405 – SCH file – zip.
Feather STM32F405 – PDF.