it rly cool SO PROGRAM YA DARN ARDUNIO

import procs=essing.serial.*;
char inputChar=7;
serial commsport;
void setup()
{
  commsPort=newSerial(this, Serial.list ()[1],38400);
}
void draw()
{
  while(mousePressed==true)
  {
    commsPort.write(inputChar);
  }
}