This Nano IO shield is a breakout board designed for Arduino Nano 328P. It breaks out all pins as electronic brick 3pin interface. It has a 7-12V external power interface, with XBee socket and 24L01 socket, extending the wireless capability of Nano. Specification Break out 14 digital IO pins and power supply pins; Eight analog IO interfaces and external power interface; One XBee socket; One 24L01 socket; One serial communication interface; One IIC interface.