#include <LiquidCrystal_I2C.h>
 LiquidCrystal_I2C lcd(0x27,16,2);
/*define prototypes*/
void LCD_Init(void);
float SensorTemp(void);


void setup() {
  LCD_Init();

  // put your setup code here, to run once:
}

void loop() {

  lcd.setCursor(0,0);
  lcd.print("Temp Current");
  lcd.setCursor(0,1);
  lcd.print(SensorTemp());
  lcd.setCursor(5,1);
  lcd.print("C");

  delay(1000);
  // put your main code here, to run repeatedly:
}

/*@param void LCD_Init(void)
* @param This function initialize config to LCD
* @param return none
*/
void LCD_Init(void){
 
  lcd.init();
  lcd.backlight();
  lcd.setCursor(0,0);
  lcd.print("SensingTemp");
  lcd.setCursor(0,1);
  lcd.print("With NTC Sensor");
  delay(1000);
  lcd.clear();
}
/*@param float SensorTemp(void)
* @param this function return value the sensor
* @param return value sensor in tyoe data float
*/
float SensorTemp(void){
  float analogValue; 
  analogValue = analogRead(A0);
  return (1 / (log(1 / (1023. / analogValue - 1)) / 3950 + 1.0 / 298.15) - 273.15);
}