The One Square Inch of Goodness is an board made with ATmega328P microcontroller in a TQFP (Thin Quad Flat Pack).
- 16Mhz crystal
- 2 analog input pins
- power LED and (Arduino) pin 13 LED.
The kit comes with an ATmega328P-AU with an Arduino bootloader on it, And the board runs at 5 volts and consumes about 8mA with the power LED connected.
This is one of the best ways to Shrinkify Your Arduino Projects.
Here is another way to Shrinkify your Arduino Project By Matt Richardson @ Make.