L298N Motor Driver With Arduino Uno | Step-by-Step Wiring, Connections, PWM Speed Control, Debugging

Welcome to this detailed step-by-step tutorial on how to connect and program the L298N Motor Driver with Arduino Uno.
This video is made especially for school students and beginners who want to learn motor control safely and correctly.

In this tutorial, you will learn:

🔧 Hardware Setup

Overview of L298N driver, Arduino Uno, BO motor
Inserting 3× 3.7V batteries in the holder
Measuring battery pack voltage using a multimeter
Understanding the L298N jumper and why we remove it
Full wiring connection (Motor → L298N → Arduino Uno)
Common ground connection
Safety checks & polarity checks

💡 Programming on Arduino IDE

Basic forward–stop–reverse motor code
PWM speed control (analogWrite)
Serial Monitor debugging
Code explanation line by line

🛠 Debugging & Troubleshooting

Motor not spinning
Motor vibrating or spinning slowly
Incorrect direction
Battery voltage issues

Arduino IDE issues:
✔ Port not found
✔ avrdude / upload errors
✔ Driver not detected

🎯 Perfect for

Students, hobbyists, school robotics clubs, STEM educators, and anyone starting with DC motor control.

📥 Source Code Used in This Video

int IN1 = 5;
int IN2 = 6;
int ENA = 3;

void setup() {
pinMode(IN1, OUTPUT);
pinMode(IN2, OUTPUT);
pinMode(ENA, OUTPUT);

Serial.begin(9600);
Serial.println("Motor test start");
}

void loop() {
// Forward
Serial.println("Forward");
digitalWrite(IN1, HIGH);
digitalWrite(IN2, LOW);
analogWrite(ENA, 200);
delay(2000);

// Stop
Serial.println("Stop");
analogWrite(ENA, 0);
delay(1000);

// Reverse
Serial.println("Reverse");
digitalWrite(IN1, LOW);
digitalWrite(IN2, HIGH);
analogWrite(ENA, 200);
delay(2000);

// Stop
analogWrite(ENA, 0);
delay(2000);
}

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Видео L298N Motor Driver With Arduino Uno | Step-by-Step Wiring, Connections, PWM Speed Control, Debugging канала Siddham Robotics