int checkSensors(byte whichSensor, byte howManyBytes){ . . .}

int checkSensors(byte whichSensor, byte howManyBytes){
   
   int timeOut = 40;
   
   roombaSerial.write(149);
   roombaSerial.write((byte)howManyBytes);
   
   for (int x = 0; x < howManyBytes ; x++) {
      
      roombaSerial.write((byte)whichSensor++);
      
   }
   
   int bufferPos = 0;
   
   while(howManyBytes) {
      
      while (roombaSerial.available() == 0) {
         delayMicroseconds(1);     
      }  
      
      response[bufferPos++] = roombaSerial.read();
      
      howManyBytes -= 1;
      
   }
   
}