Hi all,
Until this moment i had been using arduino IDE without any problem. Today, when i connected my arduino nano to the computer, arduino wasn't recognizing the board, what i thought it was strange. I tried to reinstall the drivers, nothing. Did everything and nothing.
Closed arduino and opened it again, and appeared this message: "launch4j error" . Arduino took a lot of time to start and serial port didn't appeared in Arduino. Tried with another board, nothing.
I removed Arduino IDE and reinstalled, same thing, same error appeared ("launch4j") but now the port appeared. Awkward. Open an example to upload it, port in arduino gone. Disappeared.
Removed arduino, reinstalled Arduino IDE, but this time 1.5.6 - r2. launch4j error disappeared, but Port is not recognized by arduino, nothing appear when i have the board connected (tried 2, nano e mega, working fine).
I'm using Windows 7.
Who can help? Why in arduino doesn't appear the port???
Grateful