This Pico and the RP2040 have built-in USB 1.1 PHY (host and device support) which offers USB-to-Serial and debug feature (so no need for FTDI-like chip). The Pico also feature and 3 pins SWD debug port (mostly used for C development debugging with OpenOCD). | This Pico and the RP2040 have built-in USB 1.1 PHY (host and device support) which offers USB-to-Serial and debug feature (so no need for FTDI-like chip). The Pico also feature and 3 pins SWD debug port (mostly used for C development debugging with OpenOCD). |