DRV8871 Motor Driver with Arduino | Control DC Motor Speed & Direction (Step-by-Step Tutorial)
In this video, you’ll learn how to control the speed and direction of a DC motor using the DRV8871 motor driver with Arduino. If you’ve previously worked with drivers like L298N, TB6612FNG, or DRV8833, this module is a powerful and compact alternative designed specifically for single motor applications.
We’ll start by understanding how the DRV8871 works, including its MOSFET-based H-bridge design, voltage range, and current capabilities. Then, we’ll move step-by-step through the wiring process and finally dive into the Arduino code.
Using PWM (Pulse Width Modulation), you’ll learn how to smoothly accelerate and decelerate the motor, as well as reverse its direction. This tutorial is perfect for beginners and anyone working on robotics, automation, or motor control projects.
What you’ll learn
✅ How the DRV8871 motor driver works
✅ How to control DC motor speed using PWM
✅ How to change motor direction using IN1 and IN2
✅ Smooth acceleration and deceleration with Arduino
✅ Using #define for efficient pin configuration
Components used:
• Arduino Uno (or compatible board)
• DRV8871 Motor Driver Module
• DC Motor
• External Power Supply
Connections:
IN1 → Pin 9
IN2 → Pin 10
VCC → Motor Power Supply
GND → Common Ground
💡 Why use DRV8871?
• Compact and efficient design
• High current capability (2A continuous)
• Built-in protection features
• Ideal for controlling a single DC motor
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