There are several different options for power input and the footprint of the DFRduino board is the same as the Arduino Duemilanove. In addition, each pinout includes 5V and GND pins for easy connection to sensors or servos. Unit comes fully assembled. The board also has a space specifically for the DFRobot Bluetooth module.
NOTE:This shield only support Nano 2.0/2.3. There is small issue with latest v3.0 Nano on IO Shield.
Power supply: +5 V.