SparkFun Pro Mini ATmega328-5V/16MHz Development Board Compatible with Arduino Boards and IDE

This Arduino board is really thing! Only 0.8mm! It's the Arduino Pro Mini! A minimal design approach to Arduino. This is a 5V Arduino running the 16MHz bootloader (select 'Arduino Duemilanove w/ 328' within the Arduino software). Arduino Pro Mini does not come with connectors populated so that you can solder in any connector or wire with any orientation you need. We recommend first time Arduino users start with the Duemilanove. It's a great board that will get you up and running quickly. The Arduino Pro series is meant for users that understand the limitations of system voltage (5V), lack of connectors, and USB off board.

We really wanted to minimize the cost of an Arduino. The Arduino Pro Mini is like the Arduino Mini (same pin out) but to keep the cost low, we used all SMD components, made it two layer, etc. This board connects directly to the FTDI Basic Breakout board and supports auto-reset. The Arduino Pro Mini also works with the FTDI cable but the FTDI cable does not bring out the DTR pin so the auto-reset feature will not work.


Features:

ATmega328 running at 16MHz with external resonator (0.5% tolerance)
USB connection off board
Supports auto-reset
5V regulator
Max 150mA output
Over current protected
Reverse polarity protected
DC input 5V up to 12V
On board Power and Status LEDs


Dimensions:

0.7x1.3" (18x33mm)
Less than 2 grams