NB arduino-cli RP2040-zero

arduino-cli config add board_manager.additional_urls \
    https://github.com/earlephilhower/arduino-pico/releases/download/global/package_rp2040_index.json
arduino-cli core update-index
arduino-cli core install rp2040:rp2040
arduino-cli compile -b rp2040:rp2040:waveshare_rp2040_pizero
arduino-cli upload -b rp2040:rp2040:waveshare_rp2040_pizero -p /dev/ttyACM0