If you need assistance with your particular setup, post a question in the comments section below and I, or someone else, can try to help you. If you are using a different Arduino board or computer setup, the vast majority of this tutorial should still apply, however, some minor changes may be necessary. I am using the Arduino Uno WiFi Rev2 development board connected to a macOS based computer running the desktop Arduino IDE. The board also supports a motor supply voltage range of 2.7 – 10.8 V and an input logic range of 2.7 – 5.75 V. It also includes reverse EMF and over current protection circuitry. This breakout board has the ability to drive two DC motors (including speed control with PWM) or one stepper motor. over current and fault detection, that I was not planning to add to the original design.Īfter researching the motor controller boards available, I chose the Adafruit DRV8833 DC/Stepper Motor Driver Breakout Board based on the DRV8833 Dual H-Bridge Motor Driver chip from Texas Instruments. Going this route also has the benefits of providing extra features, e.g. I chose instead to use a pre-built motor controller breakout board. Since I wanted to provide the appropriate details to back up my design choices, this route proved insufficient. However, my research showed that modeling a motor in a circuit simulator is not an easy task and requires specialized test equipment that I do not have. I initially set out to write an article on how to build your own custom H-bridge based motor controller and interface it to your Arduino board. Almost all of them are based on the H-bridge circuit that uses four transistors to drive a motor forward as well as in reverse. You can find many designs, integrated circuit chips, and breakout boards used for controlling motors when searching the internet. A Benchtop Power Supply (recommended) Or A 9V Battery With Corresponding Battery Clip (available on Digi-Key and Jameco)

10 KΩ Linear Potentiometer (available on Adafruit and Sparkfun).

1 or 2 DC Motors (available on Adafruit and PiShop) with optional propellers (available on Adafruit) and motor mounts (available on Adafruit).

Adafruit DRV8833 DC/Stepper Motor Driver Breakout Board (available on Adafruit and Digi-Key).

6 x Alligator Clip Test Leads (available on Adafruit and SparkFun).

9 x Male/Male Jumper Wires (available on Adafruit and Arrow).

Preformed Breadboard Jumper Wire Kit (available on SparkFun and CanaKit).

Solderless Breadboard (available on Adafruit and SparkFun).

Soldering Station (for attaching headers to motor driver board).

Arduino Uno (R3 available on Arduino and SparkFun WiFi Rev2 on Arduino and SparkFun) With Compatible USB Cable.

Linux, macOS, Or Windows Based Computer With A USB Port.

The resources created for this tutorial are available on GitHub for your reference. The All About Circuit’s Understanding Schematics, SparkFun’s How to Read a Schematic, Core Electronics’ How to Use Breadboards, and Science Buddies’ How to Use a Breadboard guides are good resources for learning how to translate a schematic to a breadboard. This tutorial uses a solderless breadboard to build a circuit from a schematic diagram. If you are new to Arduino, or would just like to refresh your knowledge, please see our Blink: Making An LED Blink On An Arduino Uno tutorial before proceeding with this one.

Demonstrating how to provide variable speed control using a potentiometer.Ī basic understanding of electronics and programming is expected along with some familiarity with the Arduino platform.

Showing how to ramp up and down a motor’s speed over a specific time frame, and.

Enhancing the sketch by checking for any faults that may be occurring on the motor driver,.

Using the Motor class in a sketch to perform basic operations,.Constructing a distinct Motor class that interfaces with the motor driver board to provide various methods for controlling a motor,.Connecting a motor driver board and two motors to an Arduino Uno,.This tutorial will teach you how to drive small DC motors with your Arduino Uno.

Skill Level: Intermediate Table Of Contents

Dc motor arduino circuit