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

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

int value = 0;
String stringOne = "   ";
void setup()
{
  lcd.init();                      // initialize the lcd
  // Print a message to the LCD.
  lcd.backlight();
  lcd.setCursor(0,0);
  lcd.print("Hello, world!");
  //lcd.setCursor(0,1);
 // lcd.print("Ywrobot Arduino!");
  pinMode(A3, INPUT);
  Serial.begin(115200);
}


void loop()
{
  value = analogRead(A3);
  Serial.println(value);
  
  lcd.setCursor(0,0);
  lcd.print("Hello, world!");
  lcd.setCursor(0,1);

  value = map(value, 136, 365, 10, 125);
  value = constrain(value, 10, 125);






  lcd.print(value);
  if (value > 999)
  {  stringOne = "";}
  if (value > 99)
  {  stringOne = " ";}
  if (value > 9)
  {  stringOne = "  ";}
  if (value < 10)
  {  stringOne = "   ";}

  lcd.print(stringOne);
}