minute on Nostr: thanks for all the input, after checking all the (pretty complex/big/expensive) ...

thanks for all the input, after checking all the (pretty complex/big/expensive) options i settled on CY7C65215-32LTXI and a DIP switch to select on of two UARTs that can have the console depending on the chosen CPU module (most use UART 1, but on some like BPi CM4 and 8mplus i had to use UART 2).

also this is the next level of "don't accidentally swap RX/TX!"