Uploaded firmware in Microcontroller. Insert the device in a computer's USB port. And the device is not defined. I even tried to change Microcontroller - that does not work. Errors in the scheme no. All collected as you. HEX file downloaded to your page. I do AVR microcontrollers already 3 years. But only write in Assembly, so check your code I can not. I hope for your help.
USA 
Canada 
Hello. I made the device, as
Hello. I made the device, as described in your article. Payment is not made. All posted on the circuit board.
My device:
http://radikal.ru/F/i017.radikal.ru/0805/d3/3a167d8628f9.jpg.html
http://radikal.ru/F/i008.radikal.ru/0805/ad/0d10bec5203e.jpg.html
Uploaded firmware in Microcontroller. Insert the device in a computer's USB port. And the device is not defined. I even tried to change Microcontroller - that does not work. Errors in the scheme no. All collected as you. HEX file downloaded to your page. I do AVR microcontrollers already 3 years. But only write in Assembly, so check your code I can not. I hope for your help.
Write to me mura-vey@mail.ru