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20 Aug 2017
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TOPIC: Sharpsky Pro Focuser Driver

Sharpsky Pro Focuser Driver 8 months 2 weeks ago #14968

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From what I can see there is no driver for the Sharpsky Pro focuser. I've tried to contact the manufacturer but have had no recent responses from him. In the past he mentioned that there had been no real need for creating the INDI driver so he hadn't gone to the effort.

Anyway, I've got one of these and I'd really like it to work under INDI. It works under ASCOM of course. In case it followed the same protocols as the Moonlite and Robofocuser I tried those, but had no luck.

I'm willing to learn whatever is required to get it done. Can anyone give me the path/process required to do this? How do I reverse engineer what it is doing under ASCOM? Once I have that info, what's the best way forward from there - copy and existing focuser driver and modify it for the Sharpsky? Any tips, etc would be greatly appreciated.

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Sharpsky Pro Focuser Driver 8 months 2 weeks ago #14972

You might want to start with some USB Serial monitor/sniffer and watch the traffic as you issue command and receive response. I believe it was done before by other users here (google the forum). Once you have the protocol, the rest is easy. You can customize moonlite focuser driver and change it to fit the protocol you found.

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Sharpsky Pro Focuser Driver 8 months 2 weeks ago #14985

Hi,

I know, to email, the original designer of the Sharpsky focuser - Dave Trewren... I'll drop him an email to see if he can get interested...

Phil
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Sharpsky Pro Focuser Driver 8 months 2 weeks ago #15003

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That's what I've tried - maybe you'll have better luck.

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Sharpsky Pro Focuser Driver 8 months 2 weeks ago #15004

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knro wrote: You might want to start with some USB Serial monitor/sniffer and watch the traffic as you issue command and receive response. I believe it was done before by other users here (google the forum). Once you have the protocol, the rest is easy. You can customize moonlite focuser driver and change it to fit the protocol you found.


Ok, if we get nowhere with Dave, I'll start on this and see what I can discover.

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Sharpsky Pro Focuser Driver 8 months 2 weeks ago #15010

I'll let you know what happens... or maybe Dave will join the forum.... let's see....

Phil

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Sharpsky Pro Focuser Driver 8 months 2 weeks ago #15012

It looks like Sharpsky focuser is MoonLite/Robo compatible (as described in Other features on the focuser site )
This means that you can either:
1) use MoonLite/Robo control box and MoonLite focuser driver
2) skip any control box and use any stepper motor controller (see this post ) or use Astroberry PiFace driver (see this post )

Option #2 will let you just control the stepper motor and will not provide all other focuser capabilities (i.e. temperature compensation etc.). Depending on level of compatibility option #1 might provide you with support for all capabilities.

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Sharpsky Pro Focuser Driver 8 months 1 week ago #15013

I'd be interested as well. I asked Dave some time ago as well.

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Sharpsky Pro Focuser Driver 8 months 1 week ago #15016

I got an email back from Dave.... I have asked him, if he has some time as he does have a day job, to join the forum to potentially join in the discussions....

Phil

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Last Edit: by psjshep.

Sharpsky Pro Focuser Driver 8 months 1 week ago #15017

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In reply to Kaczorek: I've tried both of these drivers (for #1). I haven't tried #2 yet.
I'd like to get temperature compensation as well.

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Last Edit: by lazjen.

Sharpsky Pro Focuser Driver 8 months 3 days ago #15293

Hi Phil

Did David get back to you on this? I did ask him a while ago. I have the same focuser.

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Sharpsky Pro Focuser Driver 8 months 3 days ago #15295

Hi,

The last email I had from Dave said he was going to look at the Indi project if I could give him various links (which I did) - the final sentence was, "it's sad, but it just boils down to time... or the lack of it"

It sounds like he would like to get involved... but can't afford the time...

Phil

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