for some time I try to get the second I2C bus from the ATMega328PB working with display libraries (I.e. U8G2) I only get it working with a workaround. It seems, that it's not working, because your ...

I made a board with 328PB and burned the MiniCore on it. The IDE does not support compiling code for U8Glib with MiniCore when I use 328PB, but it works fine if I switch to 328P.

Released over 10 years ago, Arduino UNO is still the best-selling Arduino board, but lacking WiFi in the IoT era is not ideal, so Gianluca Martino, Arduino co-founder and working with the company ...