#include <Servo.h>

Servo servo1;
Servo servo2;
Servo servo3;
Servo servo4;

int pot1Pin = A0;
int pot2Pin = A1;
int pot3Pin = A2;
int pot4pin = A3;

int pos1, pos2, pos3, pos4;

void setup(){
  servo1.attach(9);
  servo2.attach(10);
  servo3.attach(11);
  servo4.attach(12);
}

void loop(){
  pos1 = map(analogRead(pot1Pin), 0, 1023, 0, 180);
  pos2 = map(analogRead(pot2Pin), 0, 1023, 0, 180);
  pos3 = map(analogRead(pot3Pin), 0, 1023, 0, 180);
  pos4 = map(analogRead(pot4pin), 0, 1023, 0, 180);
  servo1.write(pos1);
  servo2.write(pos2);
  servo3.write(pos3);
  servo4.write(pos4);

  delay(3);  
}