if($reader === chr(06)) { echo "\nAcknowledged\n"; } if($reader===chr(0)) { echo "\nYou got a NULL"; } //echo $reader; }while($reader !== chr(10)); //} echo $message; // Reply */ do { //$myArray .= $reader; $reader = $serial->getMessage(); echo "\n" . $reader . "\n"; if ($reader == chr(0x0)) { echo "null "; } if ($reader === chr(0x16)) { echo "idle"; } } while (true); //$myArray = unpack("n*", $myArray); // Rebuild message from array if ($reader === 10) { echo "hello there"; } echo "\n" . $reader . "\n"; //}