[APML] LX200 serial protocol outputs?

["Carlos Milovic F." <cmilovic@yahoo.es>]

Hi guys!

 

I'm trying to build a serial to ST4 ports interfase, becouse I'll use an old Connectix B&W QuickCam for autoguiding. I already made such interfase, for the parallel port when using a Toucam, and worked very well (I followed Shoestring's instructions). The problem now is that the QuickCam camera uses the parallel port, and the guiding softwares uses the serial port to comunicate with the mount, throught the LX200 protocol.

Some friends (electrical engeneers) are going to help me with this, designing a digital circuit (with shift register chips and optocouples instead of relays), and they asked me for the signals that the serial port sends to the mount for each command. I already found those commands, as used in the programming lenguages (Mn, Ms, Mw and Me to start movements, and Qn, Qs, Qe and Qw to stop them) but I don't know what are the binary commands that the serial port sends... Any of you know this information?

 

 

Regards,

Carlos Milovic F.
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Astro & Photo - CMF
http://www.astrophoto.vze.com
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Visita "AstroFoto", el foro de astrofotografía en español
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