L298N Dual H-Bridge Motor Driver

L298N Dual H-Bridge Motor Driver

The L298N is India's most-used motor driver module for robotics and automation projects. It drives two DC motors independently (forward, reverse, speed via PWM) or one stepper motor, handling up to 2A per channel and 5–35V motor voltage.

What the L298N Does

Microcontrollers like Arduino output 5V logic signals — far too weak to drive a motor directly. The L298N acts as an amplifier between your Arduino and the motors, translating logic signals into high-current motor commands. The onboard 5V regulator can also power your Arduino when the motor supply is 7V or above.

Key Specifications

• Channels: 2 independent DC or 1 stepper motor
• Motor voltage: 5–35V
• Current per channel: 2A (peak 3A)
• Logic voltage: 5V TTL compatible
• Enable pins: PWM speed control
• Onboard 5V regulator (for logic supply)

Typical Robotics Setup

Connect to Arduino Uno or ESP32, wire two gear motors, and you have a complete 2-wheel drive robot base. Add an HC-SR04 ultrasonic sensor for obstacle avoidance. This combination powers 80% of Indian engineering college robotics projects.