In this video, I'll show you how to use the L298N HBridge Motor Controller with an Arduino. Includes plans for a simple robot car.

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The L298N Dual HBridge Motor Controller is an inexpensive device that allows you to control two independent DC motors using 5volt digital logic signals, such as the digital output pins of an Arduino. The L298N can also be used to control a single stepper motor or two sets of LED lighting strips.

In this tutorial, we'll learn how to control two 6volt DC motors with the L298N.

First, we will enlighten ourselves by learning a quick bit of the history of DC motors and discovering how they actually work. We will also learn what an “HBridge” is, how it works, and how we can control the direction of rotation of a DC motor with it.

We will then quickly discuss the concept of Pulse Width Modulation, or PWM, as it is used to control the speed of DC motors. Don’t worry, it’s a lot easier than it sounds!

Then we will look at how the L288N HBridge module actually works, how to hook it up to a couple of motors, and how to power it correctly.

Next, we will connect the L298N Dual HBridge Motor Controller to an Arduino. Once that's done we’ll run a motor demo sketch to put the device through its paces.

After the demo, we will expand upon our sketch to allow a couple of potentiometers (connected to the Arduino’s analog inputs) to control the speed of each motor.

And now that we’ve become experts we will replace the potentiometers with a joystick and use it to control the motors. Just for fun, we’ll use this setup to build an Arduinodriven car!

The L298N Dual HBridge Motor Controller is a very versatile device that is sure to find a lot of use in your robotics and IoT projects. Anywhere you want to make things move with an Arduino!

This is a long video, so if you’d like to jump ahead to a specific spot here is the table of contents:

00:00 Introduction
01:25 What is a DC Motor & Where is it used?
03:01 How does a DC Motor work?
04:17 What is an HBridge?
05:25 Popular L298N Interface boards
06:49 L298N Module Pinouts and hookup
09:04 Understanding PWM (Pulse Width Modulation)
09:58 Testing the L298N without a controller
13:28 Arduino Hookup to L289N
14:53 Sketch 1 Motor Control Demo
19:29 Motor Control Demo
20:38 Potentiometer Hookup to Arduino and L298N Module
21:38 Sketch 2 Two Potentiometer Control Demo
25:08 Two Potentiometer Control Demo
25:43 Joystick and Arduino Hookup
27:52 Sketch 3 Joystick Control Demo
34:22 Driving our car!


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