cmaglie: It seems a bug in the firmware of the 16u2 that does USB-2-serial conversion. Bugfix for garbage data coming from serial port after reset. (Arduino Due) by cmaglie · Pull Request #1267 · arduino/Arduino · GitHub Can you check if the updated firmware above solves the issues? I'm new to…

Updating 16u2 USB firmware

hiduino February 12, 2013, 10:15am 4

If I recall you could select an equivalent at90usb162.

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