Clearing serial buffer solved

I recently had a similar problem to send data to Arduino Unity and I developed this little demonstration.

It has the advantage of adjusting the write speed of Arduino speed at which empties buffe ...

Please note that is just a small demonstration.

int MaxBytesAvailable;
int CurrentAvailable;
int delayNumber=1000;
int n;
String messageOut;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  MaxBytesAvailable=Serial.availableForWrite();
}

void loop() {
  // put your main code here, to run repeatedly:
  messageOut="";
  messageOut+=Serial.availableForWrite();
  messageOut+=" Current Delay =";
  messageOut+=delayNumber;
  Serial.println(messageOut);
  for(n=0;n<delayNumber;n++)
  {
    if((CurrentAvailable=Serial.availableForWrite())>=MaxBytesAvailable) break;
    
  }
  if (CurrentAvailable>(MaxBytesAvailable/2))
  {
    delayNumber-=100;
    if(delayNumber<0)delayNumber=0;
    
  }
  else
  {
    delayNumber+=100;
    if(delayNumber>65000) delayNumber=65000;
  }
}