Thanks Barry,
What I meant to ask if the hand controller switches may not be just simple on/off switches for the electronics, but could be used by the mcu to turn the drive on and off, because when tracking is off, the switches turn on the drive electronics to turn the motors by increments, but when tracking is on, and the same switches are depressed, that is used to adjust the speed of the motors, and that would be by varying pulseswidth or dutycycle?
My drive is picaxe based that has serial input and I can easily translate the lx200 commands that i've seen in documentation to movements for my mount.
But I needed to capture the commands that are being sent over the serial port from planetarium software, especially when you click on connect, I guess it queries for firmware version.
I needed to know what the query and response is so i can get the picaxe to send back the same.
I've got this serial port monitoring software serialmon that can capture any data sent/received over the serial port.
only wish I had a compatible mount.
http://www.serialmon.com/