For a new project, considering the fact that the microcontroller chips are currently not available immediately on distributor websites lately, I decided to create a break-out board/ Expansion board/ Shield for a STM32 nucleo board with just the peripherals of the circuit design which will hopefully help with the first tests. I would like to know if someone has already done something like this? Any experienced people here? tips and tricks, rule of thumb points to keep in mind before starting, please? Or are there any templates available online for a break-out board design dimensions, stack up and so on that makes life easier? Your help would be much appreciated. Thanks in advance.
