5. Click Tool -> Dev Board -> Raspberry Pi Pico/RP2040 -> Raspberry Pi Pico. 6. After setting, click the right arrow to upload. If you encounter problems during the period, you need to reinstall or replace the Arduino IDE version, uninstall the Arduino IDE needs to be uninstalled cleanly, after uninstalling the software you need to manually delete all the contents of the folder C:\Users\ [name]\AppData\Local\Arduino15 (you need to show the hidden files in order to see it) and then reinstall. Pico-W Series Tutorial (To be continued. .) Open Source Demo