View Full Version here: : USB to Serial port adapter?

21-05-2016, 07:40 PM
One that actually works on a Skywatcher Synscan handset with Stellarium.
Prolific chipset? I have bought two, neither work. One I suspect is a prolific clone, the other has a winchiphead driver. Looking to buy something that works, without costing an arm and a leg. Given that I bought popcorn, a drink and a choc-top at the cinema the other night.......

21-05-2016, 07:50 PM
I bought mine from Jaycar. Worked with windows 10. It auto loaded the drivers didn't need the disk.

22-05-2016, 05:38 AM
Thanks for that, they're in my local Autobarn, going there today for something else. If it doesn't work it wont be too hard to return it. Maybe third time lucky. :-)

22-05-2016, 10:39 AM
This is a reliable one
FWIW this is also recommended by Astro-Physics, who are big on quality.

22-05-2016, 12:57 PM
I use an Aten UC-232A for connection to my Az-Eq6. I also use the same adapter to connect to PABX's and for console access top routers without issue.

The Aten UC-232A costs around $35 online.

I've had no problems with the Aten from WinXP through to Win10.

22-05-2016, 01:04 PM
+1 I have two of the Keyspan ones and never had any problem with them.

22-05-2016, 07:24 PM
I bought one from Jaycar, hooked it up tonight. Got a reticle display which was a first and moved the scope twice before it disappeared on me. I even tried an ASCOM setup with StellariumScope. I'm over it. I'll stick to the handset. Thanks for all the advice.

22-05-2016, 09:04 PM

I use one with my AP1600 mount and its trouble free.


23-05-2016, 06:45 AM
I thought maybe it would work using ASCOM drivers and StellariumScope. It listens on the tcip ports but when I select the connect box a window appears with no data showing, it then vanishes and I get an error message that the scope is parked. I cant uncheck the scope parked as I don't see an option to do it. Not sure if I should be in PC-Direct mode either. I've got Carte du Ceil, I might have a go at that tonight. I've spent enough money on this already.

23-05-2016, 08:20 AM
Ive had driver problems with windows 10. PC sees the driver but it doesn't connect.

With mine putting an older win 7/xp driver version on fixed it. Bang ! Connects to stellarium etc. Just got to remember where the article was about this. Or - justsearch "windows 10 driver usb serial problem" and you'll get swamped !

Also check the prolifoc website

23-05-2016, 06:27 PM
The Keyspan Serial / USB adaptor works reliably each and every time, irrespective of what it's plugged into. I haven't tried it with windows 10.


23-05-2016, 08:30 PM
The Keyspan USA-19HS has drivers available for all Windows operating
systems including Windows 10.

The latest drivers can be downloaded from here -

A good USB Serial adapter is a combination of good hardware and a
good driver.

Not all of them are born equal.

Having received feedback from a very large number of customers who
had tried a large number of different makes and models of adapters,
the Keyspan ones always came out on top. So, as a service, we stock
and recommend them ourselves. This has, no doubt, saved our
own customers a lot of time.

We also use them ourselves on Windows, Mac OS X and Linux machines.

Best Regards

Gary Kopff
Managing Director
Wildcard Innovations Pty. Ltd.
20 Kilmory Place
Mount Kuring-Gai NSW 2080
Phone +61-2-9457-9049
Fax +61-2-9457-9593

24-05-2016, 06:33 AM
Thanks for the info Gary, unfortunately out of my price range at the moment.