(2023-06-05, 02:04 AM)rszemeti Wrote: Given the the RaspberryPi has 4 UARTS and UART0 is used for the Bluetooth, would it not have made sense to use any of the other 3 for Maiana via the Macarthur HAT?
Nop. UART0 is being used by most of the HATs because is the only common interface for Raspberry 0, 1, 2, 3 and 4.
The MacArthur HAT uses UART3 for NMEA 0183 1 and UART5 for NMEA 0183 2. UART4 can not be used because one pin is being used by NMEA 2000 and UART1 and UART2 are being used by the system. The only reasonable option was to use UART0 even sacrificing Bluetooth.