The L298N Dual H-Bridge Motor Control Module can be used to control 2 DC motors or 1 stepper motor at 2A continous current per channel.
- L298N Dual H-Bridge Motor Control Module
KEY FEATURES OF L298N DUAL H-BRIDGE MOTOR CONTROL MODULE:
- Drive 2 DC motors with speed and direction control
- Drive 1 stepper motor
- 5 – 35V motor voltage range
- 2.5A peak current per channel (2A continuous)
The module can handle up to 2.5A peak per bridge or 2A continuous and 25W total power.
L298N modules do not have built-in current limiting, so they are best suited for DC motor control rather than stepper control, so that is what we are going to focus on here.
When used with DC motors, the H-Bridge drive arrangement allows the direction of the rotation of the motors to be changed. In addition PWM can be used to control the speed of the motors. This gives full control over the DC motors.
PWM stands for Pulse Width Modulation which means that the duty cycle (signal HIGH vs signal LOW) of the waveform can be changed. As the duty cycle is changed, the average DC voltage as seen by the motors also changes which changes the speed at which the motor turns. Motors require a minimum amount of voltage to start turning, so low PWM values may not move the motors but you may be able to hear the motors humming.