L298N Motor Driver Module

Overview

L298N Dual H-Bridge Motor Driver Module designed for controlling DC motors, stepper motors, and robotic actuators using microcontrollers such as Arduino, ESP32, STM32, and Raspberry Pi. Based on the STMicroelectronics L298N dual full-bridge driver IC, the module supports bidirectional motor control with independent speed and direction management.

The module includes onboard voltage regulator, screw terminals, heat sink, and easy-to-use pin headers, making it one of the most popular motor driver solutions for robotics, automation, and embedded systems projects.

Specifications

Parameter	Value
Model	L298N
Driver Type	Dual H-Bridge
Motor Channels	2
Motor Voltage	5V – 35V
Logic Voltage	5V
Max Current	2A per channel
Peak Current	3A
Control Interface	TTL Logic
PWM Support	Yes
Voltage Regulator	Onboard 5V regulator
Driver IC	ST L298N
Heat Sink	Included
Dimensions	~43mm × 43mm × 27mm

Pin Configuration

Pin	Description
ENA	Enable Motor A (PWM Speed)
IN1	Motor A Direction 1
IN2	Motor A Direction 2
IN3	Motor B Direction 1
IN4	Motor B Direction 2
ENB	Enable Motor B (PWM Speed)
OUT1	Motor A Output
OUT2	Motor A Output
OUT3	Motor B Output
OUT4	Motor B Output
+12V	Motor Power Input
GND	Ground
5V	Logic Power

Features

• Dual H-Bridge control — control 2 DC motors independently
• Bidirectional motor control
• PWM speed control
• Supports stepper motors
• High motor voltage support — up to 35V
• Integrated heat sink
• Onboard 5V regulator
• Easy screw terminal connections
• Widely compatible with microcontrollers
• Stable and reliable motor control
• Ideal for robotics applications

L298N vs L293D

Feature	L298N	L293D
Max Current	2A	600mA
Motor Voltage	35V	36V
Heat Sink	Yes	No
Efficiency	Medium	Low
Module Size	Larger	Smaller
Best For	Medium motors	Small motors

Wiring with STM32 Blue Pill

L298N	Blue Pill
ENA	PA8
IN1	PB0
IN2	PB1
IN3	PB10
IN4	PB11
ENB	PA9
GND	GND

Wiring with Arduino UNO

L298N	Arduino UNO
ENA	D5
IN1	D8
IN2	D9
IN3	D10
IN4	D11
ENB	D6
GND	GND

Common Applications

• Robot cars
• Line-following robots
• RC vehicles
• Smart automation systems
• Conveyor control
• Stepper motor projects
• DIY robotics
• Embedded motor control systems
• STEM education projects

Basic Arduino Motor Example

#define ENA 5
#define IN1 8
#define IN2 9

void setup() {
    pinMode(ENA, OUTPUT);
    pinMode(IN1, OUTPUT);
    pinMode(IN2, OUTPUT);
}

void loop() {

    // Forward
    digitalWrite(IN1, HIGH);
    digitalWrite(IN2, LOW);
    analogWrite(ENA, 200);

    delay(2000);

    // Stop
    analogWrite(ENA, 0);

    delay(1000);

    // Reverse
    digitalWrite(IN1, LOW);
    digitalWrite(IN2, HIGH);
    analogWrite(ENA, 200);

    delay(2000);
}

Package Includes

• 1× L298N Motor Driver Module
• 1× Heat Sink

Notes

• Large motors may require external power supply
• Module can become hot under heavy load
• Remove 5V regulator jumper above 12V input
• Common ground required with microcontroller
• Not suitable for high-efficiency battery systems
• Modern MOSFET drivers are more efficient for advanced projects