I also remember needing a non-standard USB driver, for a CH340 -- a bit scary to install: http://0xcf.com/2015/03/13/chinese-arduinos-with-ch340-ch341-serial-us

I also remember needing a non-standard USB driver, for a CH340 -- a bit scary to install: http://0xcf.com/2015/03/13/chinese-arduinos-with-ch340-ch341-serial-usb-chip-on-os-x-yosemite/ http://0xcf.com/2015/03/13/chinese-arduinos-with-ch340-ch341...