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Arduino Robotic Projects

You're reading from   Arduino Robotic Projects Build awesome and complex robots with the power of Arduino.

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Product type Paperback
Published in Aug 2014
Publisher
ISBN-13 9781783989829
Length 240 pages
Edition Edition
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Author (1):
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Richard Grimmett Richard Grimmett
Author Profile Icon Richard Grimmett
Richard Grimmett
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Table of Contents (21) Chapters Close

Arduino Robotic Projects
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
1. Powering on Arduino FREE CHAPTER 2. Getting Started with the Arduino IDE 3. Simple Programming Concepts Using the Arduino IDE 4. Accessing the GPIO Pins 5. Working with Displays 6. Controlling DC Motors 7. Controlling Servos with Arduino 8. Avoiding Obstacles Using Sensors 9. Even More Useful Sensors 10. Going Truly Mobile – the Remote Control of Your Robot 11. Using a GPS Device with Arduino 12. Taking Your Robot to Sea 13. Robots That Can Fly 14. Small Projects with Arduino Index

Connecting a DC motor directly to Arduino


The first step in connecting a DC motor to Arduino is to actually obtain a DC motor. The motors that you will be dealing with here are simple, small DC motors. The motors must not require much current because Arduinos cannot supply more than 40 mA of current directly. For this example, you can use a small 6 V DC motor available at most electronics or hobby stores. The following figure shows one such motor:

In order to connect this motor to your Arduino, you'll need some additional parts. You'll need two male-to-male solderless jumper cables and two alligator clip jumper cables. You'll also need a transistor, a TIP120 to be specific. In this case, the transistor will act like an electronic switch; when you send a control signal to it, the power will flow from the battery. You'll also need a diode, the 1N4004 diode. The diode is a device that protects from reverse power flow. You'll need a 1000 ohm resistor; this will translate the control signal out...

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