L298N Motor Driver 21

Control direction and speed for common two-wire DC motors.

/*
  Roboda verified Arduino sample 0517
  Feature: L298N Motor Driver
  Generated for online build, classroom practice, and hardware upload testing.
*/

const byte in1 = 7;
const byte in2 = 8;
const byte enablePin = 6;

void setup() {
  pinMode(in1, OUTPUT);
  pinMode(in2, OUTPUT);
  pinMode(enablePin, OUTPUT);
}

void loop() {
  digitalWrite(in1, HIGH);
  digitalWrite(in2, LOW);
  analogWrite(enablePin, 110);
  delay(1000);
  digitalWrite(in1, LOW);
  digitalWrite(in2, HIGH);
  delay(1000);
}

How it works

Control DC motor direction and speed through an L298N-style driver.

1. Connect IN1/IN2 to direction pins.
2. Connect ENA/ENB to the PWM enable pin.
3. Use an external motor power supply.
4. Share GND between Arduino and motor driver.

Connections