Servo

Learn how to use the basics of the Servo Library and interact with a Servo.

Required Components

Hooking up Components

If you are using a basic servo that does not require external power, this should be your configuration:

Create a new project

  1. Create a new project from the template.
  2. Hook up the signal wire (orange if you are using the Micro Servo above) to pin 3 on your Galileo.
  3. Hook up the ground wire (brown if you are using the Micro Servo above) to the Ground pin on your Galileo.
  4. Hook up the voltage wire (red if you are using the Micro Servo above) to the 5V pin on your Galileo.
  5. Replace the existing code in main.cpp with the following code:

Code

Main.cpp

// Main.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include "arduino.h" 
#include <Servo.h> 

int _tmain(int argc, _TCHAR* argv[])
{
    return RunArduinoSketch();
}

Servo myservo;  // create servo object to control a servo

int delayAmount = 2000; // used for spacing out calls
int pin = 3; // the pin that the Servo is on

void setup()
{
    myservo.attach(pin);  // attaches the servo on pin to the servo object 
}

void loop()
{
    if (!myservo.attached())
    {
        Log("Servo is not attached\n");
        Log("Servo is attaching\n");
        myservo.attach(pin); 
        if (myservo.attached())
        {
            Log("Servo is attached\n");
        }
    }
    else
    {
        Log("Servo is attached\n");
    }

    myservo.write(0); // tells the servo to go to angle 0
    Log("ServoIndex: %d\n", myservo.read());
    Log("ServoIndex in Microseconds: %d\n", myservo.readMicroseconds());
    delay(delayAmount);
    myservo.write(180); // tells the servo to go to angle 180
    Log("ServoIndex: %d\n", myservo.read());
    Log("ServoIndex in Microseconds: %d\n", myservo.readMicroseconds());
    delay(delayAmount);
    
    if (myservo.attached())
    {
        Log("Servo is attached\n");
        Log("Servo is detaching\n");
        myservo.detach();
        if (!myservo.attached())
        {
            Log("Servo is detached\n");
        }
    }
    else
    {
        Log("Servo is not attached\n");
    }
}

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