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SMAKN relay support - clicks on, but not off


khobar
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I was very excited to see SMAKN relay support added, and I just updated my version of BYN. Unfortunately, while the relay does trigger "ON", it never triggers, "OFF" and BYN hangs. 

Any ideas what could be going wrong? Is there a log file I could send? Is there any diagnostics I can run to help figure it out?

Thanks very much!

khobar

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Based on this post I'm not sending the correct sequence to close the shutter.

https://electronics.stackexchange.com/questions/108448/controling-an-xd-40-lcus-usb-relay

I'll try to upload a new version in the pre-release section later tonight.

No promises and if this is not working, I won't be able to do anything else for now.

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Wow - thank you for the quick reply!

I noticed I'd asked about this back in 2018, but I then got the KMTronic board and, of course, that works perfectly. But I've since acquired a second D5100 and, well, I had this SMAKN relay board and a couple of HID relay boards and figured why not give them a go.

I did test the board on a Windows 7 laptop and was able to get it to work with the sequence you linked to:

Open the USB switch: A0 01 01 A2
Close USB Switch: A0 01 00 A1

Anyway, thanks again. I can test, if that would help!

Paul

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Thank you again. 

I was able to download the new version.

I was able to take a 45 second image - the relay triggered on, then triggered off successfully.

BUT - for some reason, when I attempted to take a second image, the relay triggered, but the camera did not. That doesn't seem like it would be an issue with BYN I don't think. I will have to do further testing with the other cable.

Unless you happen to know what's going on?

I am very grateful for your help. Cheers!

Paul

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It looks like I had a duff cable between the relay output and camera. Using the other relay board, this "new" cam works fine. Using the DC-2 cable from the other relay board, this "new" cam also works fine.

It's only three wires - how did I go wrong? ;););) 

Cheers!

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