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166  Using Arduino / Installation & Troubleshooting / Re: Loop- back test not working correctly on: August 02, 2012, 10:49:53 am
Also, try this:

Press and hold the reset button on the Leonardo, then hit the upload button in the Arduino software. Only release the reset button after you see the message "Uploading..." appear in the software's status bar. When you do so, the bootloader will start, creating a new virtual (CDC) serial port on the computer. The software will see that port appear and perform the upload using it. Again, this is only necessary if the normal upload process (i.e. just pressing the uploading button) doesn't work. (Note that the auto-reset is initiated when the computer opens the Leonardo's serial port at 1200 baud and then closes it; this won't work if something interferes with the board's USB communication - e.g. disabling interrupts.)
167  Using Arduino / Installation & Troubleshooting / Re: Loop- back test not working correctly on: August 02, 2012, 10:40:11 am
Are you sure that you did not install the driver from the FTDI folder?  That is not the proper driver. 
You need to choose the driver in the Drivers folder.
Also, try rebooting your system.
I uninstalled the driver several times and pointed XP to the FTDI folder to load the driver. I have rebooted XP everytime I loaded the driver.
I get the same error when trying to load the Blink sketch. I don't see the TX / RX lights blink at all when trying to load.

DO NOT point to the FTDI folder.  Point to the DRIVERS folder.
168  Using Arduino / Installation & Troubleshooting / Re: Can't upload to arduino on: August 02, 2012, 10:38:44 am
OK.  You obviously have a problem with the xhci_hcd module on your system.  And since it's built in, you will probably need a new kernel and/or a patch to resolve it.

What version of Unix/Linux are you using?
What kind of computer are you running this on?

My question about USB 3 was not referring to the port #, but rather the version of USB that your computer has.  MANY kernels cannot properly support the USB 3 standard, and so they give
the "no room on ep ring" error.
169  Using Arduino / Installation & Troubleshooting / Re: Can't upload to arduino on: August 02, 2012, 12:47:13 am
This may be silly sounding, but have you unplugged the Arduino, rebooted, and plugged the Arduino back in?
170  Using Arduino / Installation & Troubleshooting / Re: Loop- back test not working correctly on: August 01, 2012, 08:43:54 pm
Are you sure that you did not install the driver from the FTDI folder?  That is not the proper driver. 
You need to choose the driver in the Drivers folder.
Also, try rebooting your system.
171  Using Arduino / Installation & Troubleshooting / Re: Can't upload to arduino on: August 01, 2012, 03:11:15 pm
Try to reload the module as follows sudo modprobe -r xhci_hcd && sudo modprobe xhci_hcd

Then see what happens.

Are you using USB 3 by any chance?  This can be caused by the kernel not liking USB 3.
172  Using Arduino / General Electronics / Re: Very Basic Breadboard Question on: July 31, 2012, 11:14:56 am
Yes, seeing something you created come to life for the first time erases all the frustration that you felt while building it.
173  Using Arduino / Installation & Troubleshooting / Re: Windows 7 and Arduino UNO on: July 30, 2012, 09:35:05 pm
There is something wrong with your system and it's handling of the USB ports.

You can go into device manager, delete all the USB root hubs and reboot.  Windows will detect the root hubs and enumerate them.

After that, follow the steps exactly as indicated at http://arduino.cc/en/Guide/Windows#toc4 and see what happens.
174  Using Arduino / Installation & Troubleshooting / Re: help menu don't work on: July 29, 2012, 06:03:46 pm
Have you checked to see if you have popups blocked in your browser?
175  Using Arduino / Installation & Troubleshooting / Re: Arduino heating up on: July 28, 2012, 03:47:54 pm
Have you tested it without the ethernet shield attached?
176  Using Arduino / Installation & Troubleshooting / Re: Mac OS X 10.8 Mountain Lion - are you upgrading? on: July 28, 2012, 03:45:16 pm
I already had the JRE installed, so I never got that message.   Thanks for pointing that out.
177  Using Arduino / Installation & Troubleshooting / Re: Mac OS X 10.8 Mountain Lion - are you upgrading? on: July 27, 2012, 09:03:14 pm
No problems for me with Arduino 1.0.1 and Mountain Lion 10.8
178  Using Arduino / Installation & Troubleshooting / Re: New computer and Arduino 1.01 on: July 24, 2012, 01:29:24 am
Did you install the IDE by downloading, or did you restore it from a backup?
If from a backup, delete the preferences.txt file, delete the IDE, and install from a download.

Have you verified the sketchbook location in preferences?

Any security software that could be interfering with the IDE?

179  Using Arduino / General Electronics / Re: Buying New Soldering Iron [High End] on: July 23, 2012, 11:20:35 pm
I was going to recommend the Hakko FX-888, but I see that you read my mind and picked one up.  smiley-grin
180  Using Arduino / General Electronics / Re: Counter EMF Protection on: July 23, 2012, 11:18:11 pm
I see no need for diodes if you plan to use this driver as designed.

You will definitely get better performance with a heat sink.
Your heat sink should be sized at a minimum to match the
size of the chip itself.

As for a battery, check the the Ah rating of your proposed battery
compared to what your motors will draw.  It looks like they are
70mA no load, and 800mA stall current.
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