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Mastering Arduino

You're reading from   Mastering Arduino A project-based approach to electronics, circuits, and programming

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Product type Paperback
Published in Sep 2018
Publisher Packt
ISBN-13 9781788830584
Length 372 pages
Edition 1st Edition
Languages
Tools
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Author (1):
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Jon Hoffman Jon Hoffman
Author Profile Icon Jon Hoffman
Jon Hoffman
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Toc

Table of Contents (23) Chapters Close

Preface The Arduino FREE CHAPTER Basic Electronics Circuit Diagrams Basic Prototyping Arduino IDE Programming the Arduino - The Basics Programming the Arduino - Beyond the Basics Motion Sensor Environment Sensors Obstacle Avoidance and Collision Detection Fun with Lights Fun with Sound Using LCD Displays Speech Recognition and Voice Synthesizing DC Motors and Motor Controllers Servo Motors Using a Relay Remotely Controlling the Arduino Creating a Robot Bluetooth LE Bluetooth Classic Another Book You May Enjoy

Code

Both the Arduino IDE and Web Editor come with a servo library that we can use simply by including the header file. The following code will do this:

#include <Servo.h>

Next, we need to define the pin that the servo motor and the potentiometer are connected to. The following code will connect the signal wire to the digital 3 pin and the potentiometer to the analog 0 pin on the Arduino:

#define SERVO0_POT 0
#define SERVO0_OUT 3 

Now we need to define an instance of the Servo type as shown in the following line:

Servo servo0;

Within the setup function, we need to call the attach() method from the servo instance to initialize the instance and to tell it what pin the servo is attached to. The following code shows this:

void setup() {
  servo0.attach(SERVO0_OUT);
}

We will want to define a function that will read the potentiometer and set the position of the servo position...

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