#include "PID_v1.h"        // PID library for control

// Pins (Dummy pins for simulation purposes)
#define LED_PIN 7

// PID control variables
double setpoint = 1000;  // Desired position (fixed for simplicity)
double input = 0;        // Simulated position (feedback)
double output = 0;       // Output to control
double Kp = 2, Ki = 0.5, Kd = 0.1; // PID constants

// PID object
PID myPID(&input, &output, &setpoint, Kp, Ki, Kd, DIRECT);

void setup() {
  Serial.begin(9600);
  pinMode(LED_PIN, OUTPUT);
  
  // Initialize PID controller
  myPID.SetMode(AUTOMATIC);
  myPID.SetOutputLimits(0, 255); // Limit output to PWM range
}

void loop() {
  // Simulate position change
  input += 1; // Increment the input for simulation
  
  // Compute the PID output
  myPID.Compute();
  
  // Use the output to control an LED (simulated behavior)
  analogWrite(LED_PIN, output);
  
  // Debugging
  Serial.print("Setpoint: ");
  Serial.print(setpoint);
  Serial.print(" | Input: ");
  Serial.print(input);
  Serial.print(" | Output: ");
  Serial.println(output);
  
  delay(100); // Small delay for stability
}