The tutorial is intended for those rolling their own boards out of an Arduino-based prototype, but it will work in any situation where you need multiple connections to a single set of UART pins.

As for UARTs, the Raspberry Pi’s one-and-a-half UART interface has long been an issue in robotics and home automation applications. With a slew of devices like radio receivers/transmitters ...

Another noteworthy feature is the RX-TX switch function. Traditional Arduino boards assign digital pins in a specific order, but the UART interface on the RP2350 has a different configuration.