From: Milton Aupperle <milton@outcastsoft.com>

Date: April 11, 2008 9:55:51 AM MDT

To: Astro_IIDC@yahoogroups.com

Subject: Re: [Astro_IIDC] Re: Guiding Celestron mount?

Dear Alen;

On 11-Apr-08, at 3:26 AM, alien2108 wrote:

Hello Milton!

Do you think this Autoguide-Serial adapter would work with Astro IIDC:

http://jthommes.com/MiscAstro/AutoGuideAS_Circuit.htm

It uses serial byte for control:

Bit     Function

0  RA+

1 RA-

2 RA Stop

4 DEC+

5 DEC-

Is this by any chance compatible with already implemented function?

It won't with Astro IIDC. For a serial devices, it has to emulate the Meade LX protocol to be compatible with Astro IIDC. That uses a single 5 (8 actual) bit value to control it.

And although I could probably add it in, there are no commercial implementations of that hardware so it becomes a one off. I spend way more time in development and testing (especially testing) than the cost of a GPUSB would be.

Sorry, but it simply isn't going to work.

Milton J. Aupperle