INFO: To run Zero Shades of Gray, build your HW according to one of the schematics. The LED and it's resistor is optional :) Feed with 3-5 Volts. The two crystal load capacitor depends on your crystal. 20pF should work fine for a normal HC/49 crystal. 10pF is for my 3.2 x 2 mm SMD crystal. FLASH AND FUSE SETTINGS: Don't forget avrdude option -c High fuse should be 0xD9. Low fuse should be 0xFF Fuse parameters for avrdude: -p atmega328p -U hfuse:w:0xD9:m -U lfuse:w:0xFF:m Flash parameters for avrdude: -p atmega328p -U flash:w:zsog.hex PCB: Do you now how to solder surface mount components? I have a few PCBs... Contact me! Good luck! Any questions? Send me a mail: adent@chroma.se