I can't even start my arduino with "blink" example... :(

I don’t know why… but I think is because in “port” does not appear “usb”…

I just buy it, i run the blink example and never upload it… Always “uploading”.

thanks a lot!

Your Arduino is not being recognized as a USB device. Exactly what model Arduino do you have? Some models need a USB driver.

Leonardo ;D

Thanks !

Run the "Applications/Utilities/System Information" app. Look for the Leonardo under Hardware/USB. Mine says:

 Arduino Leonardo:

    Product ID:	0x8036
    Vendor ID:	0x2341
    Version:	1.00
    Speed:	Up to 12 Mb/sec
    Manufacturer:	Arduino LLC
    Location ID:	0x14100000 / 8
    Current Available (mA):	500
    Current Required (mA):	500

If it doesn't show up you will probably need to burn a fresh bootloader.

HELP!! In "System Information" does not appear nothing, then i burn the boot loader and appear this:

"avrdude: error: could not find USB device with vid=0x16c0 pid=0x5dc vendor='www.fischl.de' product='USBasp'
Error quemando boot loader"

I think the problem is my mac because today i bringed the board to the store and it was working perfectly! Arrghhhhh...

What can i do?

regards, Guille

Have you checked the getting started page for Mac OS?

yorica:
i burn the boot loader and appear this:

“avrdude: error: could not find USB device with vid=0x16c0 pid=0x5dc vendor=‘www.fischl.de’ product=‘USBasp’
Error quemando boot loader”

To burn a bootloader you need an ISP device. I suspect you have not bought one yet. You can get a USBasp clone via eBay for about $4. You can get a USBtinyISP for about $5. You connect either to your Mac via USB and select which type you have under Tools->Programmer.