(...) John, Are you thinking of doing this in TclTk as discussed before? If so, why don't we collaborate a bit...I've done a serial handler in TclTk for a proprietary RS485 network at 9600 baud. At 2400 baud, I'm sure I could do the same. Your (...) (26 years ago, 19-May-99, to lugnet.robotics.rcx.pbforth)