 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