This compact expansion board plugs directly into the GPIO header on a Raspberry Pi B+, A+, or Pi 2 and provides an easy and low-cost solution for driving a pair of small brushed DC motors. Its integrated DRV8835 dual motor driver allows it to operate from 1.5 V to 11 V, making it a great control option for low-voltage motors.
This module is based on the popular L298N H Bridge DC Motor Driver . The circuit will allow you to easily and independently control two motors up to 2A each in both directions.
The Motor Driver de Stepper DRV8825 is a Module Indicated for Control of Stepper Motors of 3D Printers and CNC Equipment, With Current Regulation by Trimpot. The Module Accepts Power between 8.2V and 45V and can supply up to 1.5A per Phase, Supporting Micro Resolution up to 1/32 Steps. It has current and temperature overload protection.
This DC motor driver can be used on 4WD mobile robot platforms, combat robots, smart car competition, drive pumps, electric fans, transporters, etc ...