#include <ESP32Servo.h>

// Create a servo object
Servo myservo;

// Pin for servo signal
int servoPin = 15;

const int meterPin = 25; // Pin connected to the potentiometer
int meterValue = 0;  // Variable to store the value coming from the potentiometer

const int redPin = 26; // Red pin of the RGB LED
const int greenPin = 34; // Green pin of the RGB LED
const int bluePin = 14; // Blue pin of the RGB LED

void setup() {
  // Attach the servo to the pin
  myservo.attach(servoPin);

  // Optional: you can set the initial position of the servo
  // myservo.write(90);  // Set servo to mid-point (90°)
  Serial.begin(9600); // Initialize serial communication at 9600 baud rate
  pinMode(redPin, OUTPUT); // Set the red pin as an output
  pinMode(greenPin, OUTPUT); // Set the green pin as an output
  pinMode(bluePin, OUTPUT); // Set the blue pin as an output
}

void loop() {
  // Move the servo back and forth
  for (int pos = 0; pos <= 180; pos += 1) { // goes from 0 degrees to 180 degrees
    // in steps of 1 degree
    myservo.write(pos);              // tell servo to go to position in variable 'pos'
    delay(15);                       // waits 15ms for the servo to reach the position
  }
  for (int pos = 180; pos >= 0; pos -= 1) { // goes from 180 degrees to 0 degrees
    myservo.write(pos);              // tell servo to go to position in variable 'pos'
    delay(15);                       // waits 15ms for the servo to reach the position

    // read the value from the potentiometer
  meterValue = analogRead(meterPin);

  // print the results to the serial monitor
  Serial.print("meterValue: ");
  Serial.println(meterValue);
// Control the color of the RGB LED based on the degree intervals
  if (meterValue == 0) {
    analogWrite(redPin, 0);
    analogWrite(greenPin, 0);
    analogWrite(bluePin, 0);
  } else if (meterValue > 0 && meterValue <= 60) {
    analogWrite(redPin, 255);
    analogWrite(greenPin, 0);
    analogWrite(bluePin, 0);
  } else if (meterValue > 60 && meterValue <= 100) {
    analogWrite(redPin, 0);
    analogWrite(greenPin, 0);
    analogWrite(bluePin, 255);
  } else if (meterValue > 100 && meterValue <= 130) {
    analogWrite(redPin, 255);
    analogWrite(greenPin, 255);
    analogWrite(bluePin, 0);
  } else if (meterValue > 130 && meterValue < 180) {
    analogWrite(redPin, 0);
    analogWrite(greenPin, 255);
    analogWrite(bluePin, 0);
  } else if (meterValue == 180) {
    analogWrite(redPin, 255);
    analogWrite(greenPin, 0);
    analogWrite(bluePin, 255);
  }

  delay(100); // Small delay to make reading more stable
  }
}