#include <Adafruit_NeoPixel.h>

// Define the GPIO pin connected to the potentiometer.
#define POTPIN 12 // Analog input pin (use GPIO34 as an example)

// Define the pin where the NeoPixel ring is connected
#define PIN 26 // Replace with the GPIO pin number you use

// Define the number of LEDs in the ring
#define NUM_LEDS 16

// Create the NeoPixel object
Adafruit_NeoPixel ring = Adafruit_NeoPixel(NUM_LEDS, PIN, NEO_GRB + NEO_KHZ800);

void setup() {
  // Initialize the NeoPixel ring
  Serial.begin(115200);
  ring.begin();
  ring.show(); // Turn off all LEDs initially
}

void loop() {
  static bool richting = false;
  static int numerLet = 0;
  int analogValue = analogRead(POTPIN);
  int timeOut = map(analogValue, 0, 4095, 30, 500);
  static int timeStamp1;

  
  if(millis() - timeStamp1 >= timeOut){
    timeStamp1 = millis();
    if(numerLet == NUM_LEDS - 2){
      richting = true;
    }else if(numerLet == 1){
      richting = false;
    }
    if(richting == false){
      ring.setPixelColor(numerLet, ring.Color(150, 0, 0));
      ring.setPixelColor(numerLet + 1, ring.Color(255, 0, 0));
      ring.setPixelColor(numerLet + 2, ring.Color(150, 0, 0));
      ring.setPixelColor(numerLet - 1, ring.Color(0, 0, 0));
      numerLet++;
      ring.show();
    }else if(richting == true){
      ring.setPixelColor(numerLet, ring.Color(150, 0, 0));
      ring.setPixelColor(numerLet - 1, ring.Color(255, 0, 0));
      ring.setPixelColor(numerLet - 2, ring.Color(150, 0, 0));
      ring.setPixelColor(numerLet + 1, ring.Color(0, 0, 0));
      numerLet--;
      ring.show();
    }
    Serial.println(numerLet);
  }
}