For Arduino Nano IO Expansion Shield is specifically designed to facilitate an easy connection between FOR Arduino Nano and many other devices. In essence, it expands the Nano controller to link those devices in a simple and trouble free manner. It is a perfect companion of Nano breadboard and compatible with both Nano v2.x and v3.x.

This expansion shield provides:

14 I/O Pin (servo type with GND, power and signal)
8 analog Pin with power output and GND
6 PWM Pin
1 Servo power input
5 I2C expansion Pin
AREF output

3.3V output

CH340G Replace FT232RL

Operating Voltagelogic level:5V

8 analog inputs ports:A0 ~ A7

14 Digital input / output ports:TX,RX,D2 ~ D13

6 PWM ports:D3, D5, D6, D9, D10, D11

1 pairs of TTL level serial transceiver ports RX / TX

Using Atmel Atmega328P-AU MCU

There is bootloader installed in it

Support USB download and Power

Support for external 5V ~ 12V DC power supply

Support power supply by 9V battery