i am planning to build an dpoae device so which one do u prefer STM32MP157D-DK1 processor or STM32H7A3 microcontroller is enough?

[Sharan]

i am planning to build an dpoae device so which one do u prefer STM32MP157D-DK1 processor or STM32H7A3 microcontroller is enough? 

for STM32MP157D-DK1 can u suggest some videos on how to use it ,the ide for it how to access the GPIOS .u can also suggest some good Udemy courses for it