$linewidth = 16
$sp = SerialPort.new(ARGV[0], ARGV[1].to_i, ARGV[2].to_i, ARGV[3].to_i, SerialPort::NONE);
$sp.read_timeout=1000; # 1 second
$linewidth = 16
$sp = SerialPort.new(ARGV[0], ARGV[1].to_i, ARGV[2].to_i, ARGV[3].to_i, SerialPort::NONE);
$sp.read_timeout=1000; # 1 second