did not find any USB device "usb"

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ferronier
 
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Joined: Wed Apr 09, 2014 11:52 pm

did not find any USB device "usb"

Post by ferronier »

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

I have built Gemma invader pendant, loaded libraries, compiled code, no errors. However I cannot upload sketch to Gemma, only get this message every time: avrdude: usbdev_open(): did not find any USB device "usb" even though ide says Done Uploading.

I have searched and found many have this message doing various things with microcontrollers, but no tricks have worked for me. I have rechecked every connection etc. many times, restarted ide, rebooted Gemma, only to get this message.

How do I get this to work?

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adafruit_support_mike
 
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Joined: Thu Feb 11, 2010 2:51 pm

Re: did not find any USB device "usb"

Post by adafruit_support_mike »

The Gemma's bootloader doesn't enumerate as a USB serial port like a regular Arduino. It looks like a programmer.

Select "USBtinyISP" under the "Programmer" menu to talk to it. The tutorial shows how it all works:

https://learn.adafruit.com/introducing- ... rduino-ide (toward the bottom of the page)

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