The RP2040 is a 32-bit dual ARM Cortex-M0+ microcontroller integrated circuit by Raspberry Pi Foundation
It was released as part of the Raspberry Pi Pico board.
Install minicom. Then after connecting the microcontroller board to the Raspberry Pi via USB (you should see /dev/ttyACM0 appear) type:
minicom -o -D /dev/ttyACM0and you'll be connected to the board in read-evaluate-print loop or REPL mode. You can then get Python help with "help()", or minicom help with "Ctrl-a z".