//YWROBOT
//Compatible with the Arduino IDE 1.0
//Library version:1.1
#include <Wire.h> 
#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd(0x27,20,4);  // set the LCD address to 0x27 for a 16 chars and 2 line display
int value;
int value2;

byte s[]{
  B11111,
  B11111,
  B11111,
  B11111,
  B11111,
  B11111,
  B11111
};
void setup()
{
  lcd.init();                      // initialize the lcd 
  lcd.init();
  // Print a message to the LCD.
  lcd.backlight();
  lcd.createChar(0,s);
}


void loop()
{
  value = analogRead(A0);
  value = map(value,1023,0,15,0);
  value2 = 0;

  while(value2<=value){
    lcd.setCursor(value2,0);
    lcd.write(0);
    value2++;
  }
  lcd.print("       ");
}