L298N H-Bridge Dual Motor Driver Module – 2A Dual Channel DC & Stepper Motor Driver

The L298N H-Bridge Dual Motor Driver Module is designed to provide bidirectional control of motors from a low-power digital controller. The module uses two full H-bridge circuits, allowing independent control of two DC motors or coordinated control of a suitable bipolar stepper motor. The L298 is specifically designed to drive inductive loads including relays, solenoids, DC motors, and stepping motors.

Features

• L298N dual H-bridge driver IC.
• Two independent motor-control channels.
• Suitable for two brushed DC motors.
• Can drive compatible 2-phase bipolar stepper motors.
• Up to 2A output per channel under appropriate operating conditions.
• EnA and EnB enable inputs for PWM speed control.
• IN1–IN4 directional control inputs.
• Separate OUT1–OUT4 motor terminals.
• Current-sense connections for the two bridges.
• Built-in over-temperature protection.
• Onboard aluminum heatsink.
• Power-on LED indicator.
• Screw terminals for convenient motor and power connections.
• Compatible with Arduino and other microcontroller platforms.

Applications

• 2WD and 4WD robot vehicles.
• Line-following robots.
• Obstacle-avoidance robots.
• Differential-drive robotic platforms.
• DC motor direction and speed control.
• Bipolar stepper motor control.
• Arduino robotics projects.
• Conveyor and actuator prototypes.
• Small automation systems.
• Educational electronics projects.
• DIY CNC and positioning mechanisms.

Pin Details

• OUT1 / OUT2: Motor A output.
• OUT3 / OUT4: Motor B output.
• VMS / 12V: Main motor power input.
• GND: Common ground.
• 5V: Logic supply/output depending on the onboard regulator and jumper configuration.
• EnA: Enable/PWM control for Motor A.
• IN1 / IN2: Direction/control inputs for Motor A.
• IN3 / IN4: Direction/control inputs for Motor B.
• EnB: Enable/PWM control for Motor B.

How to Use

1. Connect the motor power supply to VMS and GND.
2. Connect the DC motor to OUT1/OUT2 or OUT3/OUT4.
3. Connect the Arduino or other controller's ground to the driver's GND.
4. Connect IN1/IN2 and IN3/IN4 to suitable digital control pins.
5. Connect EnA and/or EnB to PWM-capable pins if variable speed control is required.
6. Remove the corresponding enable jumper when controlling EnA or EnB through PWM.
7. Upload the motor-control program to the microcontroller.
8. For a bipolar stepper motor, connect each winding to one H-bridge channel and control the two bridges using an appropriate stepper-control sequence.

Important Notes

• The 2A figure is a maximum output rating, not a guarantee that the module can continuously deliver 2A per channel without substantial heating. Cooling and operating conditions are important.
• The L298N has a relatively high saturation voltage. At higher current, the voltage lost inside the driver can be several volts, producing considerable heat.
• Do not select the motor supply voltage solely by adding 2V to the motor's nominal voltage. Instead, consider the motor's actual voltage/current requirements, driver voltage drop, and thermal limits.
• The onboard regulator and jumper configuration can vary between L298N module versions. Verify the module's regulator arrangement before using its 5V terminal to power external electronics.
• If using the onboard 5V regulator, excessive input voltage and current can cause regulator heating.
• Never short OUT1/OUT2 or OUT3/OUT4 while the power supply is active.
• Do not connect or disconnect motors while the driver is powered.
• Use an appropriate external power supply capable of handling the motor's startup and stall current.
• A suitable heatsink and airflow may be necessary for demanding applications.
• For stepper motors, use a proper stepping sequence and current-controlled operation where appropriate.
• The module is not an ideal choice for applications requiring very low voltage drop or high efficiency because the L298N's bipolar output stage dissipates significant power.
• Product dimensions, connector layout, heatsink size, and component arrangement may vary slightly between module batches.

Package Includes

• 1 × L298N H-Bridge Dual Motor Driver / Stepper Motor Driver Module