Schematic is very simple, with few components:
Board with components is:
Schematic and boards are designed with Eagle PCB software and you can download sch and brd files for made boards by yourself.
A realistic 3D of my board is made with Eagle PCB software, too:
Note: ATmega328P-PU must have Arduino booloader on it...
Schematic for conection between Arduiniq board and USB to TTL FTDI module is: