sadas

#include <LiquidCrystal.h>

const int rs = 8, en = 9, d4 = 4, d5 = 5, d6 = 6, d7 = 7;
LiquidCrystal lcd(rs, en, d4, d5, d6, d7);
unsigned short secunde=0, miliSecunde=0, minute=40, ore=15;
unsigned char nrInterrupts;

unsigned int numar_CAN;
int voltageValue, temperatureRead;
unsigned int temp;
void setup()
{
  DDRD |= 0xFF;
  DDRB|=0x03;
  lcd.begin(0, 2);
  TIMSK2 = 0x01; // validare intrerupere de la Timer 0 Overflow
  TCCR2A = 0x00; // setare mod normal
  TCCR2B = 0x07;
  /////
  DDRC&=~0x10;
  DDRD=B00001111;
}
void Print0(unsigned short nr){
 if(nr < 10) lcd.print('0');
}
void loop(){
  lcd.clear();
  lcd.setCursor(0,0);
  lcd.print("Ora:");
  Print0(ore);
  lcd.print(ore);
  lcd.print(':');
  Print0(minute);
  lcd.print(minute);
  lcd.print(':');
  Print0(secunde);
  lcd.print(secunde);
  delay(1000);
     adc_init();
     lcd.setCursor(0,1);
     numar_CAN=read_adc(4);
     temp=read_adc(5);
     voltageValue=(temp*5000.0)/1024.0;
     temperatureRead=(voltageValue-500)/10;
     lcd.print("Temp=");
     lcd.print(temperatureRead);
     lcd.print("'C");
     delay(100);
}
ISR(TIMER2_OVF_vect){
   ++nrInterrupts;
  if(nrInterrupts == 61){
   ++secunde;
  nrInterrupts = 0;
  if(secunde > 59){
    ++minute;
    secunde = 0;
  }
  if(minute > 59){
   ++ore;
    minute = 0;
  }
  if(ore == 24)
    ore = 0;
  }
}
void adc_init() //adc initialization
{
  //set division factor between system clock frequency and the input clock to the ADC- 128
  ADCSRA |= ((1<<ADPS2) | (1<<ADPS1) | (1<<ADPS0));
  ADMUX|=(1<<REFS0); //AVcc with external capacitor at Aref pin
  ADCSRA|=(1<<ADEN); //enable ADC
  ADCSRA|=(1<<ADSC); //ADC start conversion
}

uint16_t read_adc(uint8_t channel)
{
  ADMUX&=0xF0; //set input AO to A5
  ADMUX|=channel; //select chanel AO to A5
  ADCSRA|=(1<<ADSC); //start conversion
  while(ADCSRA & (1<<ADSC)); //wait while adc conversion are not updated
  return ADCW; //read and return voltage
}