#include <Servo.h>  // Include the Servo library to control servo motors

// Create Servo objects for each of the 4 servos
Servo servo1;
Servo servo2;
Servo servo3;
Servo servo4;

// Define analog input pins where potentiometers are connected
const int pot1 = A0;  // Potentiometer 1 connected to analog pin A0
const int pot2 = A1;  // Potentiometer 2 connected to analog pin A1

// Define digital pins where servos signal wires are connected
const int servoPin1 = 2;   // Servo 1 connected to digital pin 2
const int servoPin2 = 3;   // Servo 2 connected to digital pin 3
const int servoPin3 = 6;   // Servo 3 connected to digital pin 6
const int servoPin4 = 10;  // Servo 4 connected to digital pin 10

void setup() {
  // Attach each servo object to its respective pin
  servo1.attach(servoPin1);
  servo2.attach(servoPin2);
  servo3.attach(servoPin3);
  servo4.attach(servoPin4);

  // Initialize all servos to the neutral (center) position at 90 degrees
  servo1.write(90);
  servo2.write(90);
  servo3.write(90);
  servo4.write(90);
}

void loop() {
  // Read the analog value from potentiometer 1 (range: 0 to 1023)
  int val1 = analogRead(pot1);

  // Read the analog value from potentiometer 2 (range: 0 to 1023)
  int val2 = analogRead(pot2);

  // Map potentiometer 1's value from 0-1023 to servo angle 0-180 degrees
  int angle1 = map(val1, 0, 1023, 0, 180);

  // Map potentiometer 2's value from 0-1023 to servo angle 0-180 degrees
  int angle2 = map(val2, 0, 1023, 0, 180);

  // Write the mapped angle to servo 1 (controlled by potentiometer 1)
  servo1.write(angle1);

  // Write the same mapped angle to servo 2 (also controlled by potentiometer 1)
  servo2.write(angle1);

  // Write the mapped angle to servo 3 (controlled by potentiometer 2)
  servo3.write(angle2);

  // Write the same mapped angle to servo 4 (also controlled by potentiometer 2)
  servo4.write(angle2);

  // Small delay to allow servos to move smoothly before next reading
  delay(20);
}