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LGT8F328P-LQFP32 MiniEVB works as a drop-in replacement for the arduino pro mini. This is one to one, and works with same arduino code.

to program the board follow the instructions below:

https://www.youtube.com/watch?v=itqyWTJch7Y

https://github.com/dbuezas/lgt8fx

https://wolles-elektronikkiste.de/en/lgt8f328p-lqfp32-boards