DC Motors Control Using Arduino PWM with L298N H-Bridge

In this tutorial i'm going to show you how to control the speed and direction of two DC motors by the most common method PWM signals.

Nov 9, 2019

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embedded

robots

Devices & Components

Arduino Uno Rev3

Dual H-Bridge motor drivers L298

DC Motor, Miniature

Hardware & Tools

Servo Motor, Premium Male/Male Jumper Wires

Premium Female/Male 'Extension' Jumper Wires, 40 x 3" (75mm)

Software & Tools

Arduino IDE

Project description

Code

L298N.ino

arduino

1const int IN1 = 7;
2const int IN2 = 6;
3const int IN3 = 5;
4const   int IN4 = 4;
5const int ENA = 9;
6const int ENB = 3;
7
8
9void setup()   {
10
11  pinMode (IN1, OUTPUT);
12  pinMode (IN2, OUTPUT);
13  pinMode (IN3,   OUTPUT);
14  pinMode (IN4, OUTPUT);
15  pinMode (ENA, OUTPUT);
16  pinMode (ENB,   OUTPUT);
17
18}
19
20void loop() {
21//control speed 
22  analogWrite(ENA,   255);
23  analogWrite(ENB, 255); 
24//control direction 
25  digitalWrite(IN1,   HIGH);
26  digitalWrite(IN2, LOW);
27  digitalWrite(IN3, HIGH);
28  digitalWrite(IN4,   LOW);
29  
30  
31
32}
33

const int IN1 = 7;
const int IN2 = 6;
const int IN3 = 5;
const   int IN4 = 4;
const int ENA = 9;
const int ENB = 3;


void setup()   {

  pinMode (IN1, OUTPUT);
  pinMode (IN2, OUTPUT);
  pinMode (IN3,   OUTPUT);
  pinMode (IN4, OUTPUT);
  pinMode (ENA, OUTPUT);
  pinMode (ENB,   OUTPUT);

}

void loop() {
//control speed 
  analogWrite(ENA,   255);
  analogWrite(ENB, 255); 
//control direction 
  digitalWrite(IN1,   HIGH);
  digitalWrite(IN2, LOW);
  digitalWrite(IN3, HIGH);
  digitalWrite(IN4,   LOW);
  
  

}

L298N.ino

arduino

1const int IN1 = 7;
2const int IN2 = 6;
3const int IN3 = 5;
4const  int IN4 = 4;
5const int ENA = 9;
6const int ENB = 3;
7
8
9void setup()  {
10
11  pinMode (IN1, OUTPUT);
12  pinMode (IN2, OUTPUT);
13  pinMode (IN3,  OUTPUT);
14  pinMode (IN4, OUTPUT);
15  pinMode (ENA, OUTPUT);
16  pinMode (ENB,  OUTPUT);
17
18}
19
20void loop() {
21//control speed 
22  analogWrite(ENA,  255);
23  analogWrite(ENB, 255); 
24//control direction 
25  digitalWrite(IN1,  HIGH);
26  digitalWrite(IN2, LOW);
27  digitalWrite(IN3, HIGH);
28  digitalWrite(IN4,  LOW);
29  
30  
31
32}
33

const int IN1 = 7;
const int IN2 = 6;
const int IN3 = 5;
const  int IN4 = 4;
const int ENA = 9;
const int ENB = 3;


void setup()  {

  pinMode (IN1, OUTPUT);
  pinMode (IN2, OUTPUT);
  pinMode (IN3,  OUTPUT);
  pinMode (IN4, OUTPUT);
  pinMode (ENA, OUTPUT);
  pinMode (ENB,  OUTPUT);

}

void loop() {
//control speed 
  analogWrite(ENA,  255);
  analogWrite(ENB, 255); 
//control direction 
  digitalWrite(IN1,  HIGH);
  digitalWrite(IN2, LOW);
  digitalWrite(IN3, HIGH);
  digitalWrite(IN4,  LOW);
  
  

}

Downloadable files

L298N

Connections

Documentation

Components Required

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