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.

Own a Bus Pirate 5? Now, it can do power glitching, thanks to [Matt Brugman’s] demo and contributions to the stock code. This is also a great demo of Bus Pirate’s capabilities and ...

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.