A 6-port USB-to-UART bridge for embedded bring-up, test fixtures, automation, and multi-device debugging

djwinter29-oss published PicoUart on GitHub, firmware that turns an RP2040 or RP2350 board into a six-channel USB-to-UART bridge. Each of the six USB CDC ports carries serial data for one UART, using a mix of hardware UARTs and PIO-based UARTs with DMA-backed data paths. A separate HID interface…

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