Mini Pro 3.3V
From Hamsterworks Wiki!
Sparkfun's Arduino Mini Pro 3.3V is a great little Arduino - it is perfect size for using on a breadboard once you solder some legs onto it. Running on 3.3V is great for interfacing with modern devices and sensors like GPS or FPGAs.
It's low weight of 2g makes it perfect for use on radio controlled aircraft or other weight sensitive projects too.
From left to right:
- A Sparkfun breadboard 3.3V/5V power regulator
- The Arduino Mini
- Sparkfun FTDI breakout board
One nice 'feature' is that when the FTDI breakout board is connected to USB both the Arduino and the breadboard power rails are also powered up.