⚠ I haven't had this PCB design manufactured yet so there may be bugs. Here be dragons.
This PCB connects 6 RS232 UART ports to a Raspberry Pi Pico.
- Two ports are connected to the RP2040's 2 hardware UARTs.
- Four more ports are connected to the RP2040's PIO drivers for software UART.
The TX/RX pins line up with those from the Pico UART Bridge firmware so that firmware should work out-of-the-box.
Note: Flow control is not supported in this design. Only TX/RX are connected to each port. This was done to keep the BOM low and software simple.
