As author claims – this is an “O’baka project” meaning stupid project. But we don’t think so as Arduino on chip is quite practical stuff. Simply speaking Arduino is assembled on top of Atmega88 chip by gluing and soldering support circuitry that include: reset switch, sketch loading pinheader and programmable LED.

The fun part of this that you can plug Arduino chip directly to breadboard and start prototyping. It takes less space leaving more of it for prototyping. In order to program the chip TTL to USB converter is needed that can be purchased/made separately.