ASIAIR and FS2 Mount space problem

s5c233F0

Hi,
I am very happy with my ASI2600MC Air, but unfortunately it doesn't work in the club observatory with the large telescopes. The connection with the FS2 (FW 1.21) is faulty.
I debugged it and figured out that the main reason is the missing space character in the :Sr and :Sd command:
Sync or goto send from Asiair (Version 2.4.4(42.33)) with Mount set to "Astro Electronic FS-2"= "Sr10:08:59#:Sd+4506:06#:CM#"
As mentioned in the FAQ, it must be "Sr 10:08:59#:Sd +4506:06#" http://www.astro-electronic.de/faq.htm#38

The Indi driver handles this correctly: https://github.com/indilib/indi/blob/master/drivers/telescope/lx200fs2.cpp#L391

Maybe there is a little setting missing in the asiair driver? Is it possible to fix this? It would be great to use the Asiair on the big telecopes...

Best Regards
Sven

s5c233F0

Okay, the next problem is that the Astro Electronic FS2 does not support guiding commands (:Mgxxxxx) over the serial interface. So I decided to develop a small protocol proxy that adds the space character and translates the guiding commands to the ST4 interface. The first test worked fine, and I'm very happy that I can now do sync, goto, and guiding on the FS2 with only the ASI2600MC AIR camera, this speeds up the setuptime 🙂

I put it on GitHub. If someone is interested in the solution, please contact me.
https://github.com/svenlissel/lx200_proxy

Best Regards,
Sven