 Atmega 168/328

 14 Channels Digital I/O

 6 PWM Channels (Pin11,Pin10,Pin9,Pin6,Pin5,Pin3)

 8 Channels 10-bit Analog I/O

 USB interface

 Auto sensing/switching power input

 ICSP header for direct program download

 Serial Interface TTL Level

 Support AREF

 Support Male and Female Pin Header

 Integrated sockets for APC220 RF Module and DF-Bluetooth Module

 Five I2C Interface Pin Sets

 Two way Motor Drive with 2A maximum current

 5 key inputs

 DC Supply：USB Powered or External 7V~12V DC。

 DC Output：5V /3.3V DC and External Power Output

 Dimension：90x80mm