Arduino Uno R3 / Windows 7 - PC don't see the board

Using Arduino IDE 1.x
1

Hello,
Today I bought my first Arduino (Uno R3), and after unpacking and connecting the board with my computer (Windows 7) with USB cable, the computer doesn't see the board in device manager - neither in COM ports nor in other devices, so I can't manually install the drivers. I installed Arduino software, but I can't choose proper COM port. I tried reinstalling software, reseting and reconnecting Arduino, turning off and on again the computer, but nothing helped. After connecting the board to computer the ON Led is on and L Led is blinking. Can you help me?

2

Your PC should detect "new hardware" (and that 'bumpy' sounds) and (try to) install drivers..
Before you do all this manually.: try the UNO on another PC. (to confirm that card and cable is OK)

In most cases win7 finds hardware and install correct drivers..

3

My PC doesn't detect the hardware, that's the problem.
I tried it also on my laptop with Win7 and it's the same.

4

Try a different, known to work, USB cable.

If that does not solve the problem, send the board back to the vendor so they can exchange it.

5

Ok, thank you, cable was broken, I bought a new one and everything works properly - problem solved;)

6

Hello,
I bought the Arduino UNO R3 and when I connect it to my comuter, The LED on the board Turns on/off and it doesn't stop! Any one knows that what is the problem? And how i can solve it?

7

Hello,
I bought the Arduino UNO R3 and when I connect it to my comuter, The LED on the board Turns on/off and it doesn't stop! Any one knows that what is the problem? And how i can solve it?