// put your setup code here, to run once:
#include <Servo.h>  

int POSservo = 0;  

Servo myservo1;  // create servo object to control a servo
Servo myservo2;  // create servo object to control a servo
Servo myservo3;  // create servo object to control a servo
Servo myservo4;  // create servo object to control a servo
Servo myservo5;  // create servo object to control a servo
Servo myservo6;  // create servo object to control a servo 

void setup()  
{  
  myservo1.attach(3);
  myservo2.attach(5);
  myservo3.attach(6);
  myservo4.attach(9);
  myservo5.attach(10);
  myservo6.attach(11); // power pin connected to pin 5 of Arduino board  
// Here, the pin of the Arduino board connected to the servo should be a PWM pin   
}  
void loop()  
{  
  // It will sweep the servo from 0 to 180 degrees  
  for (POSservo = 0; POSservo <= 90; POSservo=POSservo+1)   
  {  
    // tell servo to go to position in variable 'POSservo'  
    myservo1.write(POSservo);
    myservo3.write(POSservo);
    myservo5.write(POSservo);  
    // It will wait for the specified duration (20 milliseconds) to reach the position  
    delay(30); // delay of 15 millisecond(s)  
  }  
  for (POSservo = 90; POSservo >= 0;POSservo= POSservo-1)   
  {  
    // It will tell servo to go to position in the declared variable 'POSservo'  
    myservo2.write(POSservo);
    myservo4.write(POSservo);
    myservo6.write(POSservo);  
    delay(30);  
    // we can modify the duration as per the requirements  
  }  
}