I have been using this Arduino for about 2 weeks now and just yesterday it just stopped showing up on my computers. All of the drivers are updated so i'm not sure what the problem is. Any help.
Please provide us with the following details:
Board type:
Operating System:
If you are running the new Arduino Uno R3, the release notes say that you have to download Arduino 1.0 to your computer to initialize the device. That's what I had to do to get my new boards working.
- go to: http://arduino.cc/en/main/software
- extract the zip
- go to start>control panel>system and security>system>device manager>... may say "unknown device".
- double click to open it and browse to the Arduino folder you just extracted and click okay
After doing this, the computer was able to recognize the device and installed the drivers.