Arduino for STM32

Pinout Diagram

https://github.com/WeActTC/MiniF4-STM32 ... Layout.pdf

Thanks for sharing this. It is pretty and has all the relevant information.

I hope it's useful! Please let me know if I have mis-labeled or forgotten something!

imho it has been quite fun trying out the F40x pill boards e.g. the F401 pill boards, cost a slight premium but i'm starting to like them better than the F103 pill boards and the 'clones'.

the F4 pill soc normally has more sram (> 20k), has an fpu, has on-chip high performance cache ST calls it the 'ART accelerator', the PLL system clock scalars are more flexible than F103 hence one can run them at more system clock frequencies (overclocks easily) and still keeping usb usable than do the F103. one thing i've not explored is DMA burst transfers (i.e. it has an on chip FIFO in each channel). sketches and apps run better than they do on the F103 even at the same mhz system clock.

on libmaple working the F4 feels somewhat on the 'bleeding edge', i.e. you may need to update/supplement things missing in the core. but as i worked those things, they keep getting better returns (e.g. performance) than do the F103 for my sketches, apps. as i explored the registers etc, i found that the F40x series has very similar registers, this could mean an app / sketch made to run on the F401 may just run on F405/407/F411/F427/F429. using the official core would likely get more mature features as it is based on HAL.