The Raspberry Pi Debug Probe is an inexpensive, all-in-one USB to serial debug and UART bridge. It provides the necessary hardware and cabling to support “plug and play” debugging of Raspberry Pi Pico and other microcontroller and microprocessor-based platforms.
The Raspberry Pi Debug Probe provides both a processor serial debug interface (by default this is the ARM Serial Wire Debug interface) and an industry-standard UART interface. Both interfaces use a 3-pin debug connector, as specified in the Raspberry Pi 3-pin debug connector specification.
