//Vref dari dalam = 1.1V = 1100 mvolt; Resolusi = Vref/(2~10-1)= 1100/1023 = 1.0742 mV
//Data out = Vin/resolusi = Vin*1023/2046; Vin = Data_out*resolusi
#include <LiquidCrystal.h>
LiquidCrystal LCD_Perdana (1,2,3,10,11,12,13);
unsigned char x;
const float Res=1.07;
float Vin;
int Data_conv;
float suhu;

void setup() 
{

   LCD_Perdana.begin(16,2);
 LCD_Perdana.clear();
   pinMode (8,OUTPUT);
  pinMode (9, OUTPUT);

    analogReference(INTERNAL); 
  }

void loop() 
{
 Data_conv = analogRead (0);    //analogRead(0);
 LCD_Perdana.clear();
 LCD_Perdana.setCursor(0,0);
 LCD_Perdana.print("Data ADC =");
 LCD_Perdana.print (Data_conv);
 delay (2000);
     
 Vin = Data_conv*Res ; 
 LCD_Perdana.clear();
 LCD_Perdana.setCursor(0,0);
 LCD_Perdana.print("V input =");
 LCD_Perdana.print (Vin);
 delay (2000);
 
 suhu = Vin/10;
  LCD_Perdana.clear();
 LCD_Perdana.setCursor(0,0);
 LCD_Perdana.print("Suhu =");
 LCD_Perdana.print (suhu);
 LCD_Perdana.print(char(223));
 LCD_Perdana.print('C');
 delay (2000);
 
 if (suhu <= 34.5)
 {digitalWrite (8,LOW);
 digitalWrite (9,HIGH);

 }
 else if (suhu>35.5)
 {digitalWrite (8,HIGH);
 digitalWrite (9,LOW);
  }
  }