Cytron Combat Robot Controller Arduino Compatible

Features:
Support up to 30A peak(10 second) and 10A(continuous) per channel.
Bi-directional control for two brushed DC motor
Current limiting at 30A.
Solid state components provide faster response time and eliminate the wear and tear of mechanical relay.
Fully NMOS H-Bridge for better efficiency and no heat sink is required.
Speed control PWM frequency up to 20KHz (Actual output frequency is same as input frequency).
Support both locked-antiphase and sign-magnitude PWM operation.
Arduino sketch compatible.
Able to drive brushed motor from 6V to 24V.
Single power input for both motor and on board controller.
SMD ATmega328 microcontroller with Optiboot (UNO) Bootloader.
On board 1A (maximum) 5V voltage regulator.
On board 500mA (maximum) 3.3V voltage regulator.
0-5V digital outputs with 3.3V compatible inputs.
14 Digital I/O Pins (6 PWM outputs).(4 pin used for Motor driver)
6 Analog Inputs (Can be digital I/O too).
ISP 6-pin Header.
32k Flash Memory.
16MHz Clock Speed.
R3 Shield Compatible.
TX, RX, Power, pin 13 LEDs are moved to edge.
LED indicator for I/0 pin
I/O extension
2x HC-SR04 connector
Utilize USB Micro-B socket.
On board push buttons for fast test and manual operation.
No polarity protection
Dimension: 75.57cm x 99.7cm

Source : http://tinyurl.com/y7vfgakw