It's blue! It's thin (0.8mm)! It's the Arduino Pro Mini! SparkFun's insignificant plan way to deal with Arduino. This is a 5V Arduino running the 16MHz bootloader (select 'Arduino Duemilanove w/328' inside the 

Points of interest 

It's blue! It's thin (0.8mm)! It's the Arduino Pro Mini! SparkFun's insignificant structure way to deal with Arduino. This is a 5V Arduino running the 16MHz bootloader (select 'Arduino Duemilanove w/328' inside the Arduino programming). Arduino Pro Mini does not accompany connectors populated so you can weld in any connector or wire with any introduction you require. We prescribe the first time Arduino clients begin with the Duemilanove. It's an extraordinary block that will get you and running rapidly. The Arduino Pro arrangement is intended for clients that comprehend the confinements of framework voltage (5V), absence of connectors, and USB off board. 

We extremely needed to limit the expense of an Arduino. The Arduino Pro Mini resembles the Arduino Mini (same stick out) yet to keep the cost low, we utilized all SMD segments, made it two layers, and so on. This board interfaces straightforwardly to the FTDI Basic Breakout board and backings auto-reset. The Arduino Pro Mini likewise works with the FTDI link, however, the FTDI link does not draw out the DTR stick so the auto-reset highlight won't work.