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1】Press Boot to enter firmware update mode. A U disk will appear on your computer.
2】Place firmware.uf2 on the newly displayed U disk. The U disk will automatically disappear after put it.
3】You can then run the *.py program using Thonny software.
1】Press boot to enter firmware update mode; a USB drive will appear on your computer.
2】Drag the main.uf2 file from the build folder in the C file to the USB drive and the program will run automatically.