The Motor Shield is based on the L298 , which is a dual full-bridge driver designed to drive inductive loads such as relays, solenoids, DC and stepping motors. It lets you drive two DC motors with your board, controlling the speed and direction of each one independently. You can also measure the motor current absorption of each motor, among other features.

Specifications and Features:

- Logic control, 5V from Arduino main board
- Polarity protection for External motor power input
- 2 fast test buttons for each motor channel
- 2 indicator LEDs for each channel
- bi-directional control of two DC brush motor
- Motor Driven Voltage：6.5 to 12VDC(VIN Power Supply), 5.0 to 26VDC (External Power Source)
- Up to 2A current each channel
- Pin 4, 5,6,7 are used to drive two DC motor
- Support PWM speed control
- Support advance speed control
- Socket for LSS05 - Auto-Calibrating Line Sensor, doing line following robot will be easy