#include <Wire.h>
#include <LiquidCrystal_I2C.h>

// Define pins for Potentiometer, LEDs, and LCD
int potPin = 32;
int led[] = { 12, 13, 14, 15, 16, 17, 23, 19 };
LiquidCrystal_I2C lcd(0x27, 16, 2);  // Address 0x27, 16 columns, 2 rows

int freq = 13000;      // ความถี่ในการสร้างสัญญาณ PWM
int ledChannel[] = { 0,1,2,3,4,5,6,7 };  // ช่อง 0-15
int resolution = 8;  // ความละเอียด 0-16 bit

void setup() {
  // Initialize LCD
  lcd.init();
  lcd.backlight();  // Turn on backlight
  // Set LED pins as OUTPUT
  for (int i = 0; i < 8; i++) {
    ledcSetup(ledChannel[i], freq, resolution);
    ledcAttachPin(led[i], ledChannel[i]);
  }
}

void ledPattern1() {
  ledcWrite(ledChannel[0], 155);
  ledcWrite(ledChannel[1], 155);  //1
  ledcWrite(ledChannel[2], 155);
  ledcWrite(ledChannel[3], 155);
  ledcWrite(ledChannel[4], 0);
  ledcWrite(ledChannel[5], 0);
  ledcWrite(ledChannel[6], 0);
  ledcWrite(ledChannel[7], 0);
  delay(500);
  ledcWrite(ledChannel[0], 0);  //2
  ledcWrite(ledChannel[1], 155);
  ledcWrite(ledChannel[2], 155);
  ledcWrite(ledChannel[3], 155);
  ledcWrite(ledChannel[4], 155);
  ledcWrite(ledChannel[5], 0);
  ledcWrite(ledChannel[6], 0);
  ledcWrite(ledChannel[7], 0);
  delay(500);
  ledcWrite(ledChannel[0], 0);  //3
  ledcWrite(ledChannel[1], 0);
  ledcWrite(ledChannel[2], 130);
  ledcWrite(ledChannel[3], 130);
  ledcWrite(ledChannel[4], 130);
  ledcWrite(ledChannel[5], 130);
  ledcWrite(ledChannel[6], 0);
  ledcWrite(ledChannel[7], 0);
  delay(500);
  ledcWrite(ledChannel[0], 0);  //4
  ledcWrite(ledChannel[1], 0);
  ledcWrite(ledChannel[2], 0);
  ledcWrite(ledChannel[3], 155);
  ledcWrite(ledChannel[4], 155);
  ledcWrite(ledChannel[5], 155);
  ledcWrite(ledChannel[6], 155);
  ledcWrite(ledChannel[7], 0);
  delay(500);
  ledcWrite(ledChannel[0], 0);  //5
  ledcWrite(ledChannel[1], 0);
  ledcWrite(ledChannel[2], 0);
  ledcWrite(ledChannel[3], 0);
  ledcWrite(ledChannel[4], 155);
  ledcWrite(ledChannel[5], 155);
  ledcWrite(ledChannel[6], 155);
  ledcWrite(ledChannel[7], 155);
  delay(500);
  ledcWrite(ledChannel[0], 0);  //6
  ledcWrite(ledChannel[1], 0);
  ledcWrite(ledChannel[2], 0);
  ledcWrite(ledChannel[3], 0);
  ledcWrite(ledChannel[4], 155);
  ledcWrite(ledChannel[5], 155);
  ledcWrite(ledChannel[6], 155);
  ledcWrite(ledChannel[7], 155);
  delay(500);
  ledcWrite(ledChannel[0], 0);  //7
  ledcWrite(ledChannel[1], 0);
  ledcWrite(ledChannel[2], 0);
  ledcWrite(ledChannel[3], 155);
  ledcWrite(ledChannel[4], 155);
  ledcWrite(ledChannel[5], 155);
  ledcWrite(ledChannel[6], 155);
  ledcWrite(ledChannel[7], 0);
  delay(500);
  ledcWrite(ledChannel[0], 0);  //8
  ledcWrite(ledChannel[1], 0);
  ledcWrite(ledChannel[2], 155);
  ledcWrite(ledChannel[3], 155);
  ledcWrite(ledChannel[4], 155);
  ledcWrite(ledChannel[5], 155);
  ledcWrite(ledChannel[6], 0);
  ledcWrite(ledChannel[7], 0);
  delay(500);
  ledcWrite(ledChannel[0], 0);  //9
  ledcWrite(ledChannel[1], 155);
  ledcWrite(ledChannel[2], 155);
  ledcWrite(ledChannel[3], 155);
  ledcWrite(ledChannel[4], 155);
  ledcWrite(ledChannel[5], 0);
  ledcWrite(ledChannel[6], 0);
  ledcWrite(ledChannel[7], 0);
  delay(500);
  ledcWrite(ledChannel[0], 0);  //10
  ledcWrite(ledChannel[1], 0);
  ledcWrite(ledChannel[2], 0);
  ledcWrite(ledChannel[3], 0);
  ledcWrite(ledChannel[4], 0);
  ledcWrite(ledChannel[5], 0);
  ledcWrite(ledChannel[6], 0);
  ledcWrite(ledChannel[7], 0);
  delay(500);
}

void ledPattern2() {
  ledcWrite(ledChannel[0], 0);
  ledcWrite(ledChannel[1], 0);  //1
  ledcWrite(ledChannel[2], 0);
  ledcWrite(ledChannel[3], 0);
  ledcWrite(ledChannel[4], 240);
  ledcWrite(ledChannel[5], 240);
  ledcWrite(ledChannel[6], 240);
  ledcWrite(ledChannel[7], 240);
  delay(500);
  ledcWrite(ledChannel[0], 240);  //2
  ledcWrite(ledChannel[1], 0);
  ledcWrite(ledChannel[2], 0);
  ledcWrite(ledChannel[3], 0);
  ledcWrite(ledChannel[4], 0);
  ledcWrite(ledChannel[5], 240);
  ledcWrite(ledChannel[6], 240);
  ledcWrite(ledChannel[7], 240);
  delay(500);
  ledcWrite(ledChannel[0], 240);  //3
  ledcWrite(ledChannel[1], 240);
  ledcWrite(ledChannel[2], 0);
  ledcWrite(ledChannel[3], 0);
  ledcWrite(ledChannel[4], 0);
  ledcWrite(ledChannel[5], 0);
  ledcWrite(ledChannel[6], 240);
  ledcWrite(ledChannel[7], 240);
  delay(500);
  ledcWrite(ledChannel[0], 240);  //4
  ledcWrite(ledChannel[1], 240);
  ledcWrite(ledChannel[2], 240);
  ledcWrite(ledChannel[3], 0);
  ledcWrite(ledChannel[4], 0);
  ledcWrite(ledChannel[5], 0);
  ledcWrite(ledChannel[6], 0);
  ledcWrite(ledChannel[7], 240);
  delay(500);
  ledcWrite(ledChannel[0], 240);  //5
  ledcWrite(ledChannel[1], 240);
  ledcWrite(ledChannel[2], 240);
  ledcWrite(ledChannel[3], 240);
  ledcWrite(ledChannel[4], 0);
  ledcWrite(ledChannel[5], 0);
  ledcWrite(ledChannel[6], 0);
  ledcWrite(ledChannel[7], 0);
  delay(500);
  ledcWrite(ledChannel[0], 240);  //6
  ledcWrite(ledChannel[1], 240);
  ledcWrite(ledChannel[2], 240);
  ledcWrite(ledChannel[3], 0);
  ledcWrite(ledChannel[4], 0);
  ledcWrite(ledChannel[5], 0);
  ledcWrite(ledChannel[6], 0);
  ledcWrite(ledChannel[7], 240);
  delay(500);
  ledcWrite(ledChannel[0], 240);  //7
  ledcWrite(ledChannel[1], 240);
  ledcWrite(ledChannel[2], 0);
  ledcWrite(ledChannel[3], 0);
  ledcWrite(ledChannel[4], 0);
  ledcWrite(ledChannel[5], 0);
  ledcWrite(ledChannel[6], 240);
  ledcWrite(ledChannel[7], 240);
  delay(500);
  ledcWrite(ledChannel[0], 240);  //8
  ledcWrite(ledChannel[1], 0);
  ledcWrite(ledChannel[2], 0);
  ledcWrite(ledChannel[3], 0);
  ledcWrite(ledChannel[4], 0);
  ledcWrite(ledChannel[5], 240);
  ledcWrite(ledChannel[6], 240);
  ledcWrite(ledChannel[7], 240);
  delay(500);
  ledcWrite(ledChannel[0], 0);  //9
  ledcWrite(ledChannel[1], 0);
  ledcWrite(ledChannel[2], 0);
  ledcWrite(ledChannel[3], 0);
  ledcWrite(ledChannel[4], 240);
  ledcWrite(ledChannel[5], 240);
  ledcWrite(ledChannel[6], 240);
  ledcWrite(ledChannel[7], 240);
  delay(500);
  ledcWrite(ledChannel[0], 240);  //10
  ledcWrite(ledChannel[1], 240);
  ledcWrite(ledChannel[2], 240);
  ledcWrite(ledChannel[3], 240);
  ledcWrite(ledChannel[4], 240);
  ledcWrite(ledChannel[5], 240);
  ledcWrite(ledChannel[6], 240);
  ledcWrite(ledChannel[7], 240);
  delay(500);
}


void loop() {
  // Read potentiometer value
  int potValue = analogRead(potPin);

  // Map potentiometer value to percentage
  int percentage = map(potValue, 0, 4095, 0, 100);

  // Display percentage on LCD
  lcd.setCursor(0, 0);
  lcd.print("Pot %: ");
  lcd.print(percentage);

  // Calculate LED brightness based on percentage and set pattern
  int brightness;
  if (percentage > 70) {
    brightness = 155;  // Pattern 1
    // Blink LEDs in a pattern
    
    lcd.setCursor(0, 1);
    lcd.print("PWM: ");
    lcd.print(brightness);


    ledPattern1();
  } else {
    brightness = 240;  // Pattern 2
                       // Turn off all LEDs
    
    lcd.setCursor(0, 1);
    lcd.print("PWM: ");
    lcd.print(brightness);



    ledPattern2();
  }

  delay(100);

  lcd.clear();
}