#include <Servo.h>

#define S1 4
#define S2 7
#define S3 8
#define button 12

Servo servo1, servo2, servo3;
uint16_t rnd_angle1, rnd_angle2, rnd_angle3;


void setup() 
{
  pinMode(button, INPUT);

  servo1.attach(S1);
  servo2.attach(S2);
  servo3.attach(S3);

  servo1.write(0);
  servo2.write(0);
  servo3.write(0);

  randomSeed(analogRead(A0));

}

void loop()
{
  while(digitalRead(button) == 1)
  {
    delay(20);
    if(digitalRead(button) == 1)
    {
      rnd_angle1 = random(180);
      rnd_angle2 = random(180);
      rnd_angle3 = random(180);
    }
  }

  servo1.write(rnd_angle1);
  servo2.write(rnd_angle2);
  servo3.write(rnd_angle3);
}