Project Hub /Robotics & Autonomous Systems/Motor Drivers & Motion Control/How to use L298N Motor Driver with Arduino?

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ARDUINO

₹500 – ₹1,500

3 – 6 Hours

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How to use L298N Motor Driver with Arduino?

A comprehensive guide on interfacing the L298N dual H-Bridge motor driver with an Arduino to control the direction and speed of DC motors using PWM.

Originally published on CircuitDigest

View original tutorial

Parts You'll Need

This project is sourced from another site, not written by us — this list is our best match of their components against what we stock, not a verified bill of materials. Always check the original blog (linked above) for the actual parts list before buying.

Arduino UNO R3 Board (Compatible) – ATmega328P Microcontroller with USB Cable Rs. 999.00
L298N Dual H-Bridge Motor Driver Module – 2A Rs. 195.00
3–6V R140 DC Motor (High-Speed DIY & Toy Motor) Rs. 49.00
Jumper Wire 10 Pin Male To Male 20cm Rs. 45.00
400 Points Mini Solderless Prototype PCB Breadboard High Quality Rs. 89.00
MB102 Adjustable Breadboard Power Supply Module (3.3V & 5V) for Arduino & Raspberry Pi Rs. 139.00
Jumper Wire 10 Pin Male To Female 20cm Rs. 45.00

Selected: Rs. 0.00

We don't carry yet: Battery (generic / unspecified)

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How It Works

This project enables your Arduino Uno R3 to control the direction and rotational speed of a 12V DC motor using an L298N Motor Driver Module. Because an Arduino microcontroller outputs low-current digital signals that cannot directly drive power-hungry motors, the L298N acts as an intermediary power amplifier. Powered by an external 12V lithium battery pack, the motor driver uses a dual H-bridge circuit to route high current safely to the motor based on control signals from the Arduino. By sending specific high and low digital signals to the driver's input pins, you can make the DC motor spin clockwise, counter-clockwise, or stop completely. Furthermore, by utilizing Pulse Width Modulation (PWM) signals generated through the Arduino IDE, you can rapidly pulse the power to the motor, allowing you to seamlessly adjust its operational speed.

Why Build This

Build custom mobile robots and remote-controlled cars that can move forward, backward, and turn.

Experiment with automated conveyor systems for school science fairs or engineering prototypes.

Learn how to safely interface low-voltage microcontrollers with high-power mechanical actuators.

Real-World Application

Used in building mobile robots, automated conveyor systems, remote-controlled cars, and various motorized DIY mechatronic devices.

Skills You'll Learn

PWM speed control

H-bridge motor operation

DC motor direction control

microcontroller digital output

external power supply integration

Safety Precautions

Ensure correct voltage supply and jumper placement for the logic circuit. Do not exceed 12V on the onboard 5V regulator unless providing an external 5V source to the logic pins to prevent thermal damage.

Technology Tags

ARDUINO

L298N

DC MOTOR

H-BRIDGE

PWM

MOTOR CONTROL

ROBOTICS

Frequently Asked Questions

Can I power the Arduino directly from the 12V battery through the L298N?

Yes, the L298N module has an onboard 5V regulator that can supply power to the Arduino if the 5V jumper is in place, provided your input voltage does not exceed safe limits.

Why won't my motor spin even though the code is uploaded correctly?

Check your wiring to ensure the 12V battery ground is connected to the ground (GND) pin of the Arduino, creating a common ground reference for the control signals.

How do I change the speed of the motor?

You can change the speed by connecting the driver's enable pin to an Arduino PWM-capable pin and using the analogWrite() function in the Arduino IDE.

Gallery

This page is part of Kitkraft's Project Hub — a curated collection of electronics & robotics projects gathered from the maker community to help students and hobbyists discover and learn to build. Kitkraft does not claim authorship of the original project, and makes no representation as to the accuracy, completeness or safety of third-party source material. The summary and "How It Works" explanation above are AI-generated, rewritten with reference to the original tutorial — not a reproduction of it. Full credit and a direct link to the original source are provided above. If you're the original creator and have a concern about how your work is represented here, please contact us and we'll address it promptly.

Kitkraft Project Hub — curated from the maker community, credited at the source.

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