#include <LiquidCrystal.h>

LiquidCrystal lcd(12, 11, 10, 9, 8, 7);

int potPin = A0;
int ledPin = 6;
byte Bar[8] = {
  B11111,
  B11111,
  B11111,
  B11111,
  B11111,
  B11111,
  B11111,
  B11111
};


void setup() {
  lcd.begin(16, 2);
  lcd.createChar(1, Bar);
  pinMode(ledPin, OUTPUT);
}

void loop() {
  int potValue = analogRead(potPin);
  int ledBrightness = map(potValue, 0, 1023, 0, 255);
  int lcdValue = map(potValue, 0, 1023, 0, 17);

  analogWrite(ledPin, ledBrightness);

  lcd.clear();
  lcd.setCursor(1,0);
  lcd.print("LED Brightness");
  for (int i = 0; i < lcdValue; i++) {
    lcd.setCursor(i, 2);
    lcd.print("\x01");
  }

  delay(100);
}