AT90USBKEY2 hello world blinking LEDs

This blinks the lights on a at90usbkey2

All of port D actually. It's mostly lights.

Requires avr-gcc, dfu-programmer, and probably some other stuff.

• press RST and HWB simultaneously on the board
• release RST then release HWB
• The timing will be off, so unplug power briefly. See this question for updates

Should show up in dmesg as Product: AT90USB128 DFU and Manufacturer: ATMEL idVendor=03eb, idProduct=2ffb

sudo make flash