Name: L298N Dual H Bridge DC & Stepper Motor Driver Module
Brand: Thingbits Electronics
SKU: TH0619
Price: 77.0 INR
Availability: OutOfStock

Overview

The L298N Motor Driver is a high-performance module designed for controlling motors for robotics and automation. It integrates a dual full-bridge driver capable of driving inductive loads like relays, solenoids, DC, and stepper motors. This driver allows for standard TTL logic level inputs and provides two enable inputs for easy on/off control.

Specifications

Detailed Specifications:

Input Voltage (VMS): 6 to 35V
Current (Per Channel): 2A
Logic Voltage: 5 to 7V (internal LDO outputs 5V when enabled)
Maximum Driver Power: 20 to 25W
Dimensions: 60 x 54 x 30mm

Pinouts

12V	Motor Power Supply 6V to 35V (Even though 12V is mentioned on the board, it supports 6V to 35V)
GND	Ground
5V	5V is the logic voltage pin. It gives 5V output when the internal LDO is enabled using the jumper above the 12V pin. We recommend keep the jumper connected.
OUT1/ OUT2	Output pins for Motor A
OUT3/ OUT4	Output pins for Motor B
ENA	TTL Compatible Enable Input: the L state disables the bridge A. Use PWM signal on this pin to control the speed of the motor, for using the PWM remove the jumper. (Default state is enabled, it is connected to 5V with a jumper which drives the motor A in full speed.)
ENB	TTL Compatible Enable Input: the L state disables the bridge B. Use PWM signal on this pin to control the speed of the motor, for using PWM remove the jumper. (Default state is enabled, it is connected to 5V with a jumper which drives the motor B in full speed)
IN1, IN2	TTL Compatible Inputs of the Bridge A (5V Logic)
IN3, IN4	TTL Compatible Inputs of the Bridge B (5V Logic)

Connections & Code

Power

VMS: Connect it to a 6V to 35V power supply w.r.t the voltage rating of the motor.
GND: Connect it to the power supply ground. Make sure you tie all the GND ground pins together.
5V: 5V is the logic voltage pin. It gives 5V output when the internal LDO is enabled using the 5V-EN jumper. We recommend keep the jumper connected.

Signal

Connections for Arduino UNO

ENA: Connect it to Pin ~9. Remove the jumper before connecting
IN1: Connect it to Pin 8
IN2: Connect it to Pin 7
IN3: Connect it to Pin ~6
IN4: Connect it to Pin ~5
ENB: Connect it to Pin ~3. Remove the jumper before connecting

Code


/*
MOTORA    IN1   |   IN2   |   ENA
------------------------------------
Forward   HIGH  |   LOW   |   255
------------------------------------
Reverse   LOW   |   HIGH  |   255
------------------------------------
STOP      LOW   |   LOW   |   0
------------------------------------

MOTORB    IN3   |   IN4   |   ENB
------------------------------------
Forward   HIGH  |   LOW   |   255
------------------------------------
Reverse   LOW   |   HIGH  |   255
------------------------------------
STOP      LOW   |   LOW   |   0
------------------------------------
*/

// Motor A, Left Side  
const unit8_t ENA = 9
const unit8_t IN1 = 8
const unit8_t IN2 = 7
// Motor B, Right Side 
const unit8_t IN3 = 6
const unit8_t IN4 = 5
const unit8_t ENB = 3

void stop(){
  digitalWrite(IN1, LOW);
  digitalWrite(IN2, LOW);
  digitalWrite(IN3, LOW);
  digitalWrite(IN4, LOW);
  analogWrite(ENA, 0);
  analogWrite(ENB, 0);
}

void moveForward(){
  digitalWrite(IN1, HIGH);
  digitalWrite(IN2, LOW);
  digitalWrite(IN3, HIGH);
  digitalWrite(IN4, LOW);    
  analogWrite(ENA, 255);
  analogWrite(ENB, 255);
}

void moveReverse(){
  digitalWrite(IN1, LOW);
  digitalWrite(IN2, HIGH);
  digitalWrite(IN3, LOW);
  digitalWrite(IN4, HIGH);    
  analogWrite(ENA, 255);
  analogWrite(ENB, 255);
}

void increaseForward(){
  for (int i=0; i<256; i++){   
    digitalWrite(IN1, HIGH);
    digitalWrite(IN2, LOW);
    digitalWrite(IN3, HIGH);
    digitalWrite(IN4, LOW);    
    analogWrite(ENA, i);
    analogWrite(ENB, i);
    delay(20);      
  }
}

void setup() {
  pinMode(ENA, OUTPUT); //ENA Enable Pin
  pinMode(IN1, OUTPUT); //IN1
  pinMode(IN2, OUTPUT); //IN2
  pinMode(IN3, OUTPUT); //IN3
  pinMode(IN4, OUTPUT); //IN4
  pinMode(ENB, OUTPUT); //ENB Enable Pin
}

void loop(){
  stop(); // Stop DC Motors
  delay(3000);
  moveForward(); // Drive DC Motors Forward
  delay(3000);
  moveReverse(); // Drive DC Motors Reverse
  delay(3000);
  increaseForward(); // Drive DC Motors 0 to 100 Forward
  delay(3000);
}