WeAct STM32H503 black pill

[ag123]

Well despite all that tariff turmoil, I spotted this STM32H503 board from WeAct
https://github.com/WeActStudio/WeActStu ... 3CoreBoard
https://www.aliexpress.com/item/1005008391813630.html

this board is practically a replacement for the stm32f401/411 black pill boards with a STM32H503CBU6 chip
https://www.st.com/en/microcontrollers- ... 503cb.html

the 'biggest' difference is this is a H5 using an Arm Cortex M33
and runs at 250 Mhz (vs 84 Mhz / 100 mhz on the f401/f411)

all the other stuff are practically similar
3 x SPI, 2x i2c, 3 x uart + 1 lpuart
and all the other goodness ART accelerator, FPU are all there
sram of 32 kb is a bit on the low side but managable

oh 1 more feature
STM32H503 has a DAC ! (f401/f411 doesn't !)