#include <Servo.h>

// define global variables

int sp=1500;
int dr=5;

// define servos

Servo s00;
Servo s01;
Servo s02;
Servo s03;
Servo s04;
Servo s05;
Servo s06;
Servo s07;
Servo s08;
Servo s09;
Servo s10;
Servo s11;
Servo s12;
Servo s13;
Servo s14;
Servo s15;
Servo s16;
Servo s17;
Servo s18;
Servo s19;
Servo s20;
Servo s21;
Servo s22;
Servo s23;
Servo s24;
Servo s25;
Servo s26;
Servo s27;
Servo s28;
Servo s29;
Servo s30;
Servo s31;
Servo s32;
Servo s33;
Servo s34;
Servo s35;
Servo s36;
Servo s37;
Servo s38;
Servo s39;
Servo s40;
Servo s41;
Servo s42;
Servo s43;
Servo s44;
Servo s45;
Servo s46;
Servo s47;

void setup()
{
  
  s00.attach(2);
  s01.attach(3);
  s02.attach(4);
  s03.attach(5);
  s04.attach(6);
  s05.attach(7);
  s06.attach(8);
  s07.attach(9);
  s08.attach(10);
  s09.attach(11);
  s10.attach(12);
  s11.attach(13);
  s12.attach(14);
  s13.attach(15);
  s14.attach(16);
  s15.attach(17);
  s16.attach(18);
  s17.attach(19);
  s18.attach(20);
  s19.attach(21);
  s20.attach(22);
  s21.attach(23);
  s22.attach(24);
  s23.attach(25);
  s24.attach(26);
  s25.attach(27);
  s26.attach(28);
  s27.attach(29);
  s28.attach(30);
  s29.attach(31);
  s30.attach(32);
  s31.attach(33);
  s32.attach(34);
  s33.attach(35);
  s34.attach(36);
  s35.attach(37);
  s36.attach(38);
  s37.attach(39);
  s38.attach(40);
  s39.attach(41);
  s40.attach(42);
  s41.attach(43);
  s42.attach(44);
  s43.attach(45);
  s44.attach(46);
  s45.attach(47);
  s46.attach(48);
  s47.attach(49);
}

void loop()
{
  s00.writeMicroseconds(sp);
  s01.writeMicroseconds(sp);
  s02.writeMicroseconds(sp);
  s03.writeMicroseconds(sp);
  s04.writeMicroseconds(sp);
  s05.writeMicroseconds(sp);
  s06.writeMicroseconds(sp);
  s07.writeMicroseconds(sp);
  s08.writeMicroseconds(sp);
  s09.writeMicroseconds(sp);
  s10.writeMicroseconds(sp);
  s11.writeMicroseconds(sp);
  s12.writeMicroseconds(sp);
  s13.writeMicroseconds(sp);
  s14.writeMicroseconds(sp);
  s15.writeMicroseconds(sp);
  s16.writeMicroseconds(sp);
  s17.writeMicroseconds(sp);
  s18.writeMicroseconds(sp);
  s19.writeMicroseconds(sp);
  s20.writeMicroseconds(sp);
  s21.writeMicroseconds(sp);
  s22.writeMicroseconds(sp);
  s23.writeMicroseconds(sp);
  s24.writeMicroseconds(sp);
  s25.writeMicroseconds(sp);
  s26.writeMicroseconds(sp);
  s27.writeMicroseconds(sp);
  s28.writeMicroseconds(sp);
  s29.writeMicroseconds(sp);
  s30.writeMicroseconds(sp);
  s31.writeMicroseconds(sp);
  s32.writeMicroseconds(sp);
  s33.writeMicroseconds(sp);
  s34.writeMicroseconds(sp);
  s35.writeMicroseconds(sp);
  s36.writeMicroseconds(sp);
  s37.writeMicroseconds(sp);
  s38.writeMicroseconds(sp);
  s39.writeMicroseconds(sp);
  s40.writeMicroseconds(sp);
  s41.writeMicroseconds(sp);
  s42.writeMicroseconds(sp);
  s43.writeMicroseconds(sp);
  s44.writeMicroseconds(sp);
  s45.writeMicroseconds(sp);
  s46.writeMicroseconds(sp);
  s47.writeMicroseconds(sp);
  
  sp+=dr;
  if (sp>2000 || sp<1000) dr=-dr;
  delay(1);
}