/* Sweep Code for Robotīs Sonar  Emanuel Cesar  ( Brasil )  public domain.

 modified 22 Dec 2016
 by Emanuel Cesar 
 http://www.arduino.cc/en/Tutorial/Sweep
*/

#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(03);                                   // attaches the servo on pin 3 to the servo object
}

void loop() {
  for (pos = 0; pos <= 90; pos +=2) {                              // 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(05);                                                               // waits 15ms for the servo to reach the position
  }
  delay(300);

  
  for (pos = 90; pos <= 180; pos +=2) {                        // goes from 90 degrees to 180 degrees
    myservo.write(pos);                                                   // tell servo to go to position in variable 'pos'
    delay(05);                                                                  // waits 05ms for the servo to reach the position
  } 
  delay(300);


for (pos = 180; pos >= 90; pos -=2) {                            // goes from 180 degrees to 90 degrees
    myservo.write(pos);                                                     // tell servo to go to position in variable 'pos'
    delay(05);                                                                      // waits 05ms for the servo to reach the position
  } 
delay(300);


for (pos = 90; pos >= 0; pos -=2) {                              // goes from 90 degrees to 0 degrees
    myservo.write(pos);                                                 // tell servo to go to position in variable 'pos'
    delay(05);                                                                  // waits 05ms for the servo to reach the position
  } 
delay(300);
 for (pos = 0; pos <= 90; pos +=3) {                           // goes from 0 degrees to 90 degrees
    myservo.write(pos);                                                // tell servo to go to position in variable 'pos'
    delay(20);                                                               // waits 20ms for the servo to reach the position
  } 
  delay(300);
  
   
   for (pos = 90; pos <= 180; pos +=3) {                      // goes from 90 degrees to180 degrees
    myservo.write(pos);                                                   // tell servo to go to position in variable 'pos'
    delay(20);                                                                 // waits 20ms for the servo to reach the position
  } 
  delay(300);
  
   for (pos = 180; pos >= 90; pos -=3) {                         // goes from 180 degrees to0 0 degrees
    myservo.write(pos);                                                   // tell servo to go to position in variable 'pos'
    delay(20);                                                                 // waits 20ms for the servo to reach the position
  } 
  delay(300);
  
  for (pos = 90; pos >= 0; pos -=3) {                              // goes from 90 degrees to 0 degrees
    myservo.write(pos);                                                  // tell servo to go to position in variable 'pos'
    delay(20);                                                                 // waits 20ms for the servo to reach the position
  } 
  delay(300);
  
  }