You can find interesting study on this page http://cholla.mmto.org/computers/arduino/promicro.html, even if it is for the pro-micro, this is the same behavior for FIOV3. I have recently bought one, running under linux also, i use eclipse + avrdude or Arduino IDE as well to program it. I have now a little experience on this board an i can try to help you if you want. The better for going on is that you open a topic on the https://forum.sparkfun.com
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