How to Use Servo Motors with Arduino

1#include <Servo.h>
2
3Servo myservo;  // create servo object to control  a servo
4// twelve servo objects can be created on most boards
5
6int pos  = 0;    // variable to store the servo position
7
8void setup() {
9  myservo.attach(9);  // attaches the servo on pin 9 to the servo object
10}
11
12void loop() {
13  for (pos = 0; pos <= 180; pos += 1) { // goes from 0 degrees to 180 degrees
14    // in steps of 1 degree
15    myservo.write(pos);              // tell servo  to go to position in variable 'pos'
16    delay(15);                       // waits  15ms for the servo to reach the position
17  }
18  for (pos = 180; pos >= 0; pos  -= 1) { // goes from 180 degrees to 0 degrees
19    myservo.write(pos);              //  tell servo to go to position in variable 'pos'
20    delay(15);                       //  waits 15ms for the servo to reach the position
21  }
22}
23