Installe ampy :
https://learn.adafruit.com/micropython-basics-load-files-and-run-code/install-ampy
set AMPY=C:\Python27
set PATH=%PATH%;%AMPY%\Scripts
Commandes ampy
https://learn.adafruit.com/micropython-basics-load-files-and-run-code/file-operations
tuto ampy
https://learn.adafruit.com/micropython-basics-load-files-and-run-code/file-operations