On Sat, Nov 29, 2003 at 10:44:41PM -0600, justin c. rounds wrote:

has anyone had any experience using the comport object on a win2k machine to send data?

Not on win2k, but on Linux.

i'm actually trying to send commands to a lego mindstorms rcx via the ir tower (in case there are any mindstorm users out there), but any related comport advice/patches would be greatly appreciated.

one specific question: how should i send data to the object? i've been using messages with bytes (as decimal and hex) separated by spaces, but so far with minimal results.

some info on the protocol can be found at http://graphics.stanford.edu/~kekoa/rcx/protocol.html

I don't really understand the protocol, but to me it looks like a binary only protocol, like this good old MIDI protocol that we all learned to love and hate. So you should send and receive data directly with the comport object, without special translation and spaces. In case you need to deal with ascii characters, you can try to compile my ascii externals; there's only a makefile and a binary for Linux, so I would appreciate any help to compile a windows version: http://www.pure-data.org/Members/odradek/ascii-0.1.1.tar.bz2/file_view

-- Marc