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INDI Library v1.9.2 Released (14 Sep 2021)

Bimonthly Stable INDI Library release introduces new drivers and fixes for existing ones.

Altair 26C Anti-Dew Heater

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I am using INDI/EKOS on Ubuntu and have had a problem with the Altair Astro 26C. The camera's control features seem to be missing the ability to turn On or Off the Dew Heater function. I read somewhere that the ZWO 2600mc has the button for the Dew Heater in it's controls, but not so with the Altair version. Does anyone know what I can do to fix the issue? It wasn't a problem in the winter, but now that it is summer in a humid Florida environment, I'm stuck having to stop imaging every five frames and use a hair dryer to remove dew from the AR glass in front of the chip.
1 month 2 weeks ago #74073

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There should be a dedicated control for that called "Heat". It's a switch under the Control tab. If you don't see it, then that means the camera does not expose this feature.
Jasem Mutlaq
Support INDI & Ekos; Get StellarMate Astrophotography Gadget.
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1 month 2 weeks ago #74095

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Thanks, I will check again after I am done working today. However, the program N.I.N.A. does have an on/off feature for the anti-dew setting on the Altair 26c.
1 month 2 weeks ago #74106

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I just checked under the Controls tab again, and there was no "Heat" switch. However, I also checked the Windows program N.I.N.A. again on a different laptop, and there was a "Dew Control" button for the camera there that you can turn on or off. Would it be possible to add it to the Controls for the AA26CTEC?
1 month 1 week ago #74130

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This is automatically detected from the camera. So if the camera is not reporting it, then it's either an SDK issue, or perhaps there is another flag to query?
// Heat Up
    if (m_Instance->model->flag & CP(FLAG_HEAT))
    {
        m_HasHeatUp = true;
    }
Jasem Mutlaq
Support INDI & Ekos; Get StellarMate Astrophotography Gadget.
How to Submit Logs when you have problems?
Add your observatory info
1 month 1 week ago #74134

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To be honest, I do not personally know how to do much of anything with Linux myself. I started using your program on a Linux machine after the Stellarmate kept losing connecting with my Raspberry Pi over VPN. I do not know how to check flags for what is working or not on pieces of hardware. However, I brought the issue up to Altair Astro, and since the Altair camera does have the Anti-Dew button in the program NINA, they said, "actually this control as been in the SDK since we launched the 26 series product and was in fact already present in 2020, therefore if you are using an earlier SDK without dew heater support, the camera would not work at all. We suggest that you inform your contact at Indi to raise a new support ticket at www.altairastro.help and we will explain to them how the feature works. Thank you."
Last edit: 1 month 1 week ago by Christopher Westphal. Reason: more info was obtained from a third party
1 month 1 week ago #74333

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Would it be possible for you to work towards the solution with the camera's tech people by raising a ticket at altairastro.help? I would prefer to both continue using this camera, and continue using this program. I have zero developing background. There is clearly something going on with this program that is not allowing the camera to function properly. The camera's developers are more than happy to get it worked out with you. 
1 month 1 day ago #74533

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I ended up coming up with a solution, however it relies on additional dew control hardware rather than your program correctly detecting the camera's specs. I would appreciate if you would take the time to confer with Altair Astro's tecnnical specialists on altairastro.help. I do not have a programming background, so fixing the gap between your program and their hardware really should not be my responsibility. I can appreciate the open source nature of your program, but I really am not versed in picking through code and making corrections myself. Once again, they want to speak with you about it to get it worked out...
3 weeks 1 day ago #74853

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