Arduino Uno R3 not detected on Ubuntu 12.04 and Win7

Development Tools IDE 1.x
1

I have a new Arduino UNO R3 that does not load in Linux or Windows 7.

I started the installation in Ubuntu 12.04. I installed IDE version 1.0.5 and after connecting the arduino I run the dmesg command and all I see is:

Usb 5-2: new full speed USB device number 2 using ohci_hcd

I never see the message for ttyAMCx.

On windows I also installed IDE vesion 1.0.5. In device manager / Other devices I see the ATmega16u2 DFU, I select it and try to install the driver manually by navigating to the adruino/drivers folder but all I get is Windows was unable to install your ATmega16u2 DFU.

I have tried 2 different USB cables but there is no change. I’m starting to wonder if there is something wrong with the board.

I know some people reported problems with USB3 ports but both my machines only have USB2 ports.

Has anyone seen this before and if so what was the solution?

Thank you,

Mike

2

that is strnge,
so in windows it recognizes the atmega16u2?
i think tis would bean the programm in the 16u2 sin't installed properly, as an arduino uno (R3) sould be recognized as an arduino uno and not the 16u2 chip

3

I reinstalled the bootloader for the ATmega16u2 and it is now loading. In win7 device manager I see it loaded at COM8 as Arduino Uno and in Ubuntu I see it at /dev/ttyAMC0, however, now when I upload a sketch I get the following message.

avrdude: stk500_getsync(): not in sync: resp=0x00

I have found many posts on this error but nothing seems to work.

Mike

4

i had the same problem only a few hours ago (altought this was with a nano and the solution will be different)

some things you can try first:

step 1: do a loopback test: Loop-Back Test Instructions - IDE 1.x - Arduino Forum
step 2: if step 1 fails then go to step 3, if it didn't fail pls go to step 4
step 3: reprogramm the programm of the atmega16u2 (and not the bootloader of the atmega328)(google it) and return to step1.
step 4: if loopback test worked: upload the blink program included in the arduino IDE, if this works pls go to step 6, ifnot step 5.
step 5: burn the bootloader of the atmega328 (Installing an Arduino Bootloader - SparkFun Learn) go to step 4
step 6: you now have a working arduino again

if you would end up in an endles loop, don't continue pls :smiley: then probably

5

I seem to be at step 5 but I don't have the parts needed to reprogram the mega328. Most of the stuff I have found on the net seem to point to the same conclusion. I will go back to the dealer where I bought it.

Thank you for your help.

Mike