Temperature meter code to show Internal temperature after each 3 seconds

Temperature meter code to show Internal temperature after each 3 seconds

#include <Arduino.h>
byte secpass=0;
int adct=0,x1,x2;
float bintemp;

void setup()
{

Serial.begin(9600);

ADMUX=0xC8; /// 1.1 V refrrence, Right adjust, channel 8

bitWrite(ADCSRA,7,1); /// ADC Enabled
bitWrite(ADCSRA,5,1); /// Auto Triggering Enabled

ADCSRA |= B00000110; /// Pre Scaler to 1/64 // CLKAdc 250Khz

bitWrite(ADCSRA,6,1); ///Start Convertion
while (bitRead(ADCSRA,4) !=HIGH)
{
}
adct=ADCW;

Serial.println(adct,DEC);

TCCR1A=0x00; /// Normal mode for TC1
TCCR1B=0x00; /// Counter stop

TCNT1=0x48E5; /// preset value for 3sec delay

bitWrite(TIFR1,2,1); /// TOV1 CLEAR
TCCR1B=0x05; /// Counter on with 1/1024 prescaler
bitWrite(ADCSRA,6,1); ///Start Convertion
}
  
  
void loop()
{
  if ( bitRead(TIFR1,2)==HIGH)
  {
    TCCR1B=0x00; /// Counter stop
    bitWrite(TIFR1,2,1); /// TOV1 CLEAR
    TCNT1=0x48E5; /// preset value for 3sec delay
    x1=ADCL;
    x2=ADCH;
    adct=x2<<8|x1;
    Serial.println(adct,HEX);
    float x=(float)(0xEEA6D*adct-0xF863864)/pow(10,6);
    Serial.println(x,10);
    TCCR1B=0x05; /// Counter Start
    
  }
}