I am working in my project and i want to use Timer2 interrupt every 50ms to get new measurement from the output of my 5 sensors which connected to pins A1,A2,A3,A4,A5.
I read in some article that using delay instruction is not as good as using timers'Interruptions so,
I tried this code put it didn't work properly :

void setup(){

cli();

  TCCR2A = 0;
  TCCR2B = 0;
  TCNT2  = 0;
  OCR2A = 49;
  TCCR2A |= (1 << WGM21);
  TCCR2B |= (1 << CS21);   
  TIMSK2 |= (1 << OCIE2A);
sei();

Serial.begin(9600);  
}
void loop()
{
Serial.print(digitalRead(1));
Serial.print(' ');
Serial.print(digitalRead(2));
Serial.print(' ');
Serial.print(digitalRead(3));
Serial.print(' ');
Serial.print(digitalRead(4));
Serial.print(' ');
Serial.print(digitalRead(5));
Serial.println(' ');
             
}