@GHI : how did you choose the MCU models?

It’s really and simply a question, just out of curiosity. No problem or controversy anywhere, don’t worry :wink:

For example, why STM32H743 and not STM32H753 ? (the latter having hardware crypto functions)
Or why single-core and not double-core ? (although this question is quite self-answered, I think)

Price difference between the different models is not that high, so I don’t think it was the main criteria.

Price makes a difference in volumes but yes it is not the main factor. We have spent over a year trying different processors from different companies to come to the one we have today. So it is not a simple answer, it is a long story.