Example 3-3

// Example 3.3 – servo examination
 
#include <Servo.h>
Servo myservo;  // create servo object to control a servo
 
int pos = 0;    // variable to store the servo position
int del = 100; // delay in micoseconds
 
void setup()
{
  Serial.begin(9600);
  myservo.attach(9);  // attaches the servo on pin 9 to the servo object
}
 
void loop()
{
  for (int loopy = 0; loopy<=3; loopy++)
  {
    for (pos = 180; pos >=0; pos--) // from left to right with Hextronik HXT900
    {
      myservo.write(pos);
      delay(del);
    }
    delay(1000);
  }
  for (int loopy = 0; loopy<=3; loopy++)
  {
    myservo.write(180);
    delay (1000);
    myservo.write(90);
    delay (1000);
    myservo.write(0);
    delay (3000);
  }
}