Nano 328P provides all the IO leads. Lead to 3pin electronic building blocks / sensor interface. In addition, an external power input terminal is provided to support an external 7-12V input. With XBee socket and 24L01 socket, extend the Nano's wireless capabilities.

The Nano IO Expansion Board is a Nano splitter board. It leads to the so-called all pins used as electronic building blocks 3PIN interface, Zigbee XBee series modules and nRF24L01 wireless interface. Support 7-12V external power supply.