#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd(0x27, 20, 4);

int ts ;  // train speed
int tls ; // train limit speed
void setup()
 {
  lcd.init();
  lcd.backlight();

  lcd.setCursor(0, 0);
  lcd.print("train speed : ");
  lcd.setCursor(16,0);
  lcd.print("Kmph");
  lcd.setCursor(0, 1);
  lcd.print("speed limit : ");
  lcd.setCursor(16,1);
  lcd.print("Kmph");
}
/*
  12---15
*/
void loop() 
{
  ts = (200.0/1023.0)*analogRead(A0);
  lcd.setCursor(0, 3);
  lcd.print(analogRead(A0));
  lcd.setCursor(0, 2);
  lcd.print(ts);
  

}