Robocon Assignment

delete.ino

int count = 0;
int sum = 0;
byte a;
void setup() {
	Serial.begin(9600);
}

void loop() {
   
  /*
  *	Check if data is available for reading on the Serial Port.
  */
  if(Serial.available())
  {
        a = Serial.read() - 48;
        sum = sum*10 + a;
        count = count + 1;
        delay(50);
  }
  /*
  *   If the count which indicates the number of digits is 3, print the number.
  */
  if(count == 3) 
  {
    Serial.println(sum);
    sum = 0;
    count = 0;
  }
  
  delay(10); 
}

Fixes

1. Removed unused variable from first line.
2. Changed 'while' to 'if', since we're already inside a loop.
3. Added 'count = 0' onto line 27, because if it isn't there, the code would infinitely print the sum. Also if the counter 'count' were not reset, it would never print the next 3 digit inputs.