Building a sumo robot? You will discover how easy it is by using URC10 Sumo Robot Controller.
URC10 = Arduino + 10A Motor Driver + Sensors Interface
URC10 is using Atmega328P, which is the same microcontroller used on official Arduino Uno board. You can select Arduino/Genuino Uno in Arduino IDE software to develop your program.
Dual 10A motor driver built-in on URC10 enables it to drive motors suitable for up to 3kg Sumo Robot category.

Features:
    Designed for up to 3kg sumo robot.
    Arduino Uno compatible (ATmega328 microcontroller with Optiboot Bootloader).
    Bi-directional control for two brushed DC motor.
    Supported motor voltage (Vmotor/ Vin): DC8V to 25V
    Maximum Motor Current: 10A continuous, 30A peak per channel.
    Current limiting at 30A for each channel.
    Buttons for motors quick testing
    LEDs for motors output state.
    Compatible with sign-magnitude and locked-antiphase PWM operation.
    PWM frequency up to 20kHz.
    Onboard 1A (maximum) 5V voltage regulator.
    Onboard 500mA (maximum) 3.3V voltage regulator.
    Pins' assignment:
        D4, D5: Motor 1
        D6, D7: Motor 2
        D8, D9: Ultrasonic 1
        D10, D11: Ultrasonic 2 (can be used for other digital I/Os)
        D2, D3, D12, D13: Any digital sensors
        A0-A5: Any analog sensors
        1x I2C port.
    USB Micro-B & CH340 USB-Serial chip are used for program uploading.
    No Reverse Polarity Protection.
    Dimension: 75.57cm x 99.7cm