L298P Motor Driver Shield Features

Today, DC motors are used in the manufacturing many tools and equipments. So, speed and direction control of these motors is very common.

A half-bridge circuit is one of the simplest methods to control a DC motor. This method not only controls the motor direction, but also can be used for speed control. This shield is based on L298P IC.

The most important features are:

Control two DC motors simultaneously with voltage 4.8 to 24V and up to 2A current
Schottky diodes to protect against reverse motor voltage
Drive a servo motor with a dedicated voltage regulator
Buzzer to make sound
Bluetooth connections
6 digital and analog pins with 5V and GND pins for easy connection
Special pins for connection to ultrasonic sensor

Control of two DC motors connections:

VMS: Module voltage
GND: Ground
MA1: Positive end for motor A
MA2: Negative end for motor A
MB1: Positive end for motor B
MB2: Negative end for motor B
PWMA: Speed control signal for motor A – This pin is connected to pin 10 of Arduino
PWMB: Speed control signal for motor B – This pin is connected to pin 11 of Arduino
ENA: Control signal for motor A – If HIGH, motor is in direct mode and if LOW, motor is rotating in reverse. This pin is connected to pin 12 of Arduino
ENB: Control signal for motor B – If HIGH, motor is in direct mode and if LOW, motor is rotating in reverse. This pin is connected to pin 13 of Arduino