#include <Servo.h>

// Pin definitions
const int servoPin = 9;     // PWM pin connected to servo
const int ledPin = 10;      // PWM pin connected to LED
const int pot1Pin = A0;     // Analog pin for servo position control
const int pot2Pin = A1;     // Analog pin for LED brightness control
const int pot3Pin = A2;     // Analog pin for servo speed control

// Variables to store sensor readings and control values
int pot1Value = 0;         // Value from pot1 (0-1023)
int pot2Value = 0;         // Value from pot2 (0-1023)
int pot3Value = 0;         // Value from pot3 (0-1023)

int servoTargetPos = 90;   // Target position for servo (0-180)
int servoCurrentPos = 90;  // Current position of servo (0-180)
int ledBrightness = 0;     // LED brightness (0-255)
int servoDelay = 50;       // Delay between servo movements (ms)

Servo servo1;              // Create a servo object

void setup() {
  // Initialize serial communication for debugging
  Serial.begin(9600);
  
  // Initialize servo
  servo1.attach(servoPin);
  servo1.write(servoCurrentPos);
  
  // Initialize LED pin as output
  pinMode(ledPin, OUTPUT);
}

void loop() {
  // Read potentiometer values
  pot1Value = analogRead(pot1Pin);
  pot2Value = analogRead(pot2Pin);
  pot3Value = analogRead(pot3Pin);
  
  // Map pot1 value (0-1023) to servo angle (0-180)
  servoTargetPos = map(pot1Value, 0, 1023, 0, 180);
  
  // Map pot2 value (0-1023) to LED brightness (0-255)
  ledBrightness = map(pot2Value, 0, 1023, 0, 255);
  
  // Map pot3 value (0-1023) to servo delay (10-100 ms)
  // Lower delay = faster movement
  servoDelay = map(pot3Value, 0, 1023, 10, 100);
  
  // Set LED brightness
  analogWrite(ledPin, ledBrightness);
  
  // Move servo smoothly to target position
  if (servoCurrentPos < servoTargetPos) {
    servoCurrentPos++;
    servo1.write(servoCurrentPos);
    delay(servoDelay);
  } 
  else if (servoCurrentPos > servoTargetPos) {
    servoCurrentPos--;
    servo1.write(servoCurrentPos);
    delay(servoDelay);
  }
  
  // If servo is already at target position, just a small delay
  // to prevent excessive reading of the potentiometers
  if (servoCurrentPos == servoTargetPos) {
    delay(10);
  }
}