About the Nano 3.0 development board:

1. Can be directly programmed with the Mini USB cable.

2. 100% compatible with program, expansion shields, IDE of Arduino Nano v3.0.

3. USB to serial chip (CH340) supports win7 / win8 32bits, 64bits, Linux.

4. Supports ISP download.

5. Microcontroller: Atmel ATmega328P.

6. Operating Voltage: 5 V.

7. Input Voltage: 7-12 V.

8. Digital I/O Pins: 14 (of which 6 provide PWM output).

9. Analog Input Pins: 8.

10. Flash Memory: 32 KB of which 2 KB used by bootloader.

11. SRAM: 2 KB.

12. EEPROM: 1 KB.

13. Clock Speed: 16 MHz.

About Nano IO Extension Board:

1. On-board 5V Regulator, can be supplied by DC power jack.

2. On-board reset button.

3. Extends all the IO of Arduino Nano v3.0 pins, specifically provides an UART interface and an I2C interface.

Uses: Smart car, smart home, great for DIY projects