Servo Sweep

/**

 * @file: Servo sweep example

 * @description 

 * turn servo from 0 to 180 deg, wait, turn servo 180 to 0 deg

 *

 */

// include additional headers

#include <Servo.h>

 //global declarations

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

                // a maximum of eight servo objects can be created

#define SERVO 4  // connect to this pin

int pos = 0;    // variable to store the servo position

//--- Function: Setup ()

void setup()

{

  myservo.attach(SERVO);  // attaches the servo on pin 4 to the servo object

}

//--- Function: loop ()

void loop()

{

  for(pos = 0; pos < 180; pos += 1)  // goes from 0 degrees to 180 degrees

  {                                  // in steps of 1 degree

    myservo.write(pos);              // tell servo to go to position in variable 'pos'

    delay(15);                       // waits 15ms for the servo to reach the position

  }

  for(pos = 180; pos>=1; pos-=1)     // goes from 180 degrees to 0 degrees

  {                                

    myservo.write(pos);              // tell servo to go to position in variable 'pos'

    delay(15);                       // waits 15ms for the servo to reach the position

  }

}