My Uno R3 is no longer recognized by any PC after making a mounting error. My mistake was to mount modules and change the code, which the USB port of my PC and the USB port of Uno did not appreciate, the 2 USB ports of my laptop and Uno serial USB are out of order.
I will buy a USB Hub for the only USB port remaining on the PC out of service outputs gives a value of 2.2V instead of 5V.
My question, is there a solution to restart the Uno ?
I have a ftdi module can it replace the USB serial port of Uno and so use normally ?
Here is the error message from Arduinodroid
“Failed to Open Serial: CMD Faild Send [init # 1]”
If there is a solution for example with module ftdi or others? Otherwise if no solution I take your advice to find out how. I apologize for the mistakes I use a translator, Sincerely.