#include <Servo.h>
Servo myservo13, myservo7;

void setup() {
  Serial.begin(9600);
  pinMode(A0, INPUT);
  myservo13.attach(13);  // attaches the servo on pin 13 to the servo object
  myservo7.attach(7);  // attaches the servo on pin 7 to the servo object
}

void loop() {
  int data = analogRead(A0);
  Serial.print("Data = " + String(data));
  float resolution = 5.0 / 1023 ;
  float volt = data * resolution ;
  Serial.print("\t Volt = " + String(volt));
  int p = map(data, 0, 1023, 0, 180);
  Serial.println("\t Position = " + String(p));
  myservo13.write(p);
  myservo7.write(180-p);
  delay(250);
}