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Author Topic: My win7 computer won't recognize my uno  (Read 1479 times)
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ausman08
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« on: February 15, 2012, 09:55:18 pm »
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I having trouble with my arduino uno being recognized by my Windows7 computer. (and i have tried it on all 4 of my computers) It comes up as unknown device in device manager instead of arduino uno. Every time I try to install the driver it fails. Plz help
Thanks, 
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ausman08
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« Reply #1 on: February 15, 2012, 10:21:10 pm »
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It's the r3 uno too
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James C4S
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« Reply #2 on: February 17, 2012, 01:23:47 am »
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Make sure your "drivers" folder in your Arduino installation contains a Uno R3 inf file.  It is included in 1.0.
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ausman08
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« Reply #3 on: February 18, 2012, 04:19:51 pm »
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I just tried that and now it shows up as arduino uno r7 but then ide still cant program it.
please help
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James C4S
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« Reply #4 on: February 18, 2012, 04:30:01 pm »
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Quote from: ausman08 on February 18, 2012, 04:19:51 pm
I just tried that and now it shows up as arduino uno r7 but then ide still cant program it.
please help

What does "still cant program it" mean?  Is there an error message?  Does the serial port show up in the IDE?
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ausman08
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« Reply #5 on: February 18, 2012, 04:32:23 pm »
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the serial port shows up and i get the error "avrdude: stk500_getsync(): not in sync: resp=0x86" and the anytime the board is connected the L light is blinking
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be80be
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« Reply #6 on: February 18, 2012, 11:21:58 pm »
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he on the wrong com port
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ausman08
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« Reply #7 on: February 19, 2012, 01:00:35 am »
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the device manager says com3 and thats what i have selected on my arduino program
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ausman08
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« Reply #8 on: February 19, 2012, 07:45:24 pm »
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please help
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mellis
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« Reply #9 on: February 20, 2012, 10:22:03 am »
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Do you have the right board selected in the Tools menu?  Did you check the troubleshooting guide?  http://arduino.cc/en/Guide/Troubleshooting#upload
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ausman08
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« Reply #10 on: February 21, 2012, 03:48:25 pm »
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yep and i checked everything in the troubleshoot page and it still doesn't work
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wizkidalex
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« Reply #11 on: February 22, 2012, 11:56:48 am »
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I just had the same problem with my Uno R3... did you specify the install location for the driver? I kept choosing the wrong Unknown Device but now mine works. I just followed the install page at http://arduino.cc/en/Guide/Windows#toc4

I have a HP G60t (shame...) with Win7 SP1 64 bit.
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digimike
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« Reply #12 on: February 22, 2012, 12:19:25 pm »
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I was having the same issue. Win 7 doesn't have the drives for it so you will need to install them.
http://www.ftdichip.com/Drivers/VCP.htm
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wizkidalex
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« Reply #13 on: February 22, 2012, 01:49:19 pm »
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Quote from: digimike on February 22, 2012, 12:19:25 pm
I was having the same issue. Win 7 doesn't have the drives for it so you will need to install them.
http://www.ftdichip.com/Drivers/VCP.htm


The Uno doesn't have an FTDI chip, so you don;t need FTDI drivers... the drivers are in the Drivers subfolder of the arduino-1.0. folder. You need to manually install them.
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ausman08
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« Reply #14 on: February 22, 2012, 06:57:42 pm »
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I got the driver installed and it says arduino uno r3 in device manager but i still can upload any sketches to it with arduino's program
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