#include <ESP32Servo.h>

Servo servo1; 
Servo servo2;
Servo servo3;
Servo servo4;
Servo servo5;
Servo servo6;
Servo servo7;
Servo servo8;

void setup() {
  servo1.attach(15);  
  servo2.attach(2);
  servo3.attach(4);
  servo4.attach(16);
  servo5.attach(19);
  servo6.attach(21);
  servo7.attach(22);
  servo8.attach(23);
}

void loop() {
  servo1.write(0); 
  servo2.write(0);
  servo3.write(0);
  servo4.write(0);
  servo5.write(0);
  servo6.write(0);
  servo7.write(0);
  servo8.write(0);
  delay(500); 

  servo1.write(45); 
  servo2.write(45);
  servo3.write(45);
  servo4.write(45);
  servo5.write(45);
  servo6.write(45);
  servo7.write(45);
  servo8.write(45);
  delay(500);  

  servo1.write(90); 
  servo2.write(90);
  servo3.write(90);
  servo4.write(90);
  servo5.write(90);
  servo6.write(90);
  servo7.write(90);
  servo8.write(90);
  delay(500);  

  servo1.write(135); 
  servo2.write(135);
  servo3.write(135);
  servo4.write(135);
  servo5.write(135);
  servo6.write(135);
  servo7.write(135);
  servo8.write(135);
  delay(500);   

  servo1.write(180); 
  servo2.write(180);
  servo3.write(180);
  servo4.write(180);
  servo5.write(180);
  servo6.write(180);
  servo7.write(180);
  servo8.write(180);
  delay(500);