Gemma avrdude: usbdev_open(): did not find any USB device "u

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PopePieous
 
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Gemma avrdude: usbdev_open(): did not find any USB device "u

Post by PopePieous »

Hello.
No matter what I do, I cannot get my adafruit gemma (black) to work. I get the error:
avrdude: usbdev_open(): did not find any USB device "usb"

every time that I try to upload code to the device. My arduino Uno works fine -- this problem is specific to the gemma (and flora). I've tried downloading the drivers, adding the urls in board manager, etc, on 2 different computers, and avrdude flips out with that same error.

I appreciate any help. I'm running Windows 10 on a 64 bit intel processor.I have arduino IDE 1.6.6.

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adafruit_support_rick
 
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Re: Gemma avrdude: usbdev_open(): did not find any USB devic

Post by adafruit_support_rick »

Open Device Manager. Does the Gemma appear anywhere? It should appear as a USBtiny under libusb-win32 devices

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geocachersteve
 
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Re: Gemma avrdude: usbdev_open(): did not find any USB devic

Post by geocachersteve »

I have the same issue. I see the device under the device manager. I also see the Adafruit Gemma 8MHz on Com3 notice along the bottom bar of my Arduino 1.0.5 software window. I keep getting the avrdude: usbdev_open(): did not find any USB device "usb"
error. My Gemma is the black connector V2 (just bought them.) I'd like to make them work.
I am trying to just load the strand test program.

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geocachersteve
 
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Re: Gemma avrdude: usbdev_open(): did not find any USB devic

Post by geocachersteve »

I am loading Flora's just fine.
Only the Gemma is developing the error. I have 2 of them now.... same error.

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geocachersteve
 
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Re: Gemma avrdude: usbdev_open(): did not find any USB devic

Post by geocachersteve »

I solved it myself ..... sorta.
I downloaded the newest arduino software version 1.6.4
Then I downloaded the drivers provided by Adafruit.
Now I can load the strandtest example onto the Gemma.

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amateurx
 
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Re: Gemma avrdude: usbdev_open(): did not find any USB devic

Post by amateurx »

I have the same issue. I can upload to Trinket no problem, but Gemma (black) doesn't work. (now, I do have to hit the reset button on the Trinket just at the right time, but it works so I won't complain). I've tried 3 different computers, 4 different cables, a lot of different USB ports with no luck. I've used Arduino IDE 1.6.4 & now am on 1.6.8. and Adafruit drivers as of 3 days ago. All computers using Windows 10 (64bit).

Note: I can't get the Gemma to show up in the Device Manager, but I can't get the Trinket to show up either, yet that'll sync.

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adafruit_support_rick
 
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Re: Gemma avrdude: usbdev_open(): did not find any USB devic

Post by adafruit_support_rick »

Do you have the board type set to *Adafruit* Gemma (not *Arduino* Gemma)?

The Gemma and Trinket should appear as a USBTinyISP under LibUSB-Win32 Devices in Device Manager

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geocachersteve
 
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Re: Gemma avrdude: usbdev_open(): did not find any USB devic

Post by geocachersteve »

Now I see.
Whenever there is a change to things, those of us with old stuff do just fine.
It's the new stuff that messes us up... lol.

IN the Arduino software-
When selecting the 'board' under the 'tools' tab
The TEAL Gemma uses the 'Arduino Gemma'
The BLACK Gemma uses the 'Adafruit Gemma 8MHz'

I just noticed you are specifying the circuit board color. ( I have both types).

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adafruit_support_rick
 
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Re: Gemma avrdude: usbdev_open(): did not find any USB devic

Post by adafruit_support_rick »

Yeah - I'm not sure why, but the Arduino Gemma bootloader is different.

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