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This example is for Wiring version 1.0 build 0100+. If you have a previous version, use the examples included with your software. If you see any errors or have comments, please let us know.

Driving Servo by BARRAGAN
Demonstrates the use of the servo library, it sweeps a generic servo motor from the minimum to the maximum position

    #include <Servo.h>

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

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

    void setup()
    {
      myservo.attach(8); // attaches the servo on pin 8 to the servo object
    }

    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
      }
    }