Brian Morgan thanked Jasem Mutlaq in topic Timestamp video frames on ASI120MC 1 hour 3 minutes ago
Brian Morgan replied to the topic 'Timestamp video frames on ASI120MC' in the forum. 3 hours 25 minutes ago

Hi Jasem,

When I playback a 30-frame clip that I recorded with V4L2 using SER Player, I see the following information (see attachment). The time is correct but the date is not. It should read "26/03/2017" not "26/02/0117".

Thank you.

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Brian Morgan thanked Jasem Mutlaq in topic Timestamp video frames on ASI120MC 3 hours 56 minutes ago
Brian Morgan created a new topic ' Timestamp video frames on ASI120MC' in the forum. 7 hours 51 minutes ago

I am waiting for delivery of my camera so it is difficult to experiment without the equipment.

Question #5 in the FAQ document at ZWO asks:

I use ASI120MM camera to do meteor monitoring, how to show the time information in the video
The answer utilizes a program called SharpCap. The instructions show how to enable timestamping to a resolution of one millisecond.

Does the INDI driver offer control of this feature? If yes then is the timestamp written by the camera as the frame is acquired, or is it done downstream by the driver running on the RPi?

Thank you.

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Brian Morgan replied to the topic 'Just getting started and need a little help' in the forum. 2 days ago

Yes, it's the power drop of 10% that we need to be careful with. I am looking online for a 12V switch then I can sleep soundly but they all seem to be 5V.

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Brian Morgan replied to the topic 'Just getting started and need a little help' in the forum. 2 days ago

@supernov, at the time I read your post I was intrigued by the maximum "15 meter" length between your devices. After running the numbers, wishing to do PoE, I came up with a maximum acceptable distance to the switch of 45 feet given a 5V power supply and 21AWG effective wire gauge (twisted pair). Should I be surprised that the laws of nature are the same for you and me?

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Brian Morgan replied to the topic 'Just getting started and need a little help' in the forum. 2 days ago

Thanks, I learned that it is called PoE, I just failed to mention that in my post. I really just asked the question because of the strong reaction to wanting to try Powerline Ethernet. I figured that there could still be a small amount of crosstalk due to the fact that DC is really a relative term, there is ripple and minor surges when loads change in the house like the refrigerator kicking on. Plus on top of that the PoE wires are running parallel to the signal lines. Sorry, just being anal retentive.

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Brian Morgan replied to the topic 'Just getting started and need a little help' in the forum. 2 days ago

I have been watching some very good YouTube videos on wiring a home network. Now I see that I can use the four unused wires to carry DC voltage from the router in my office to a switch I want to install in the basement just at the point where the cable goes through the wall to the exterior of the house. Should I not do this?

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Brian Morgan replied to the topic 'Just getting started and need a little help' in the forum. 2 days ago

Just an update:

High Point Scientific has got a 15% off sale on ZWO products that may last only about a week or until their new inventory is exhausted or Sam pulls the plug on it! I purchased the ASI120MC, a 2.8mm-12mm zoom lens, and a T2-CS adapter: $185.40 with free shipping.

No telescope purchase yet. I am really torn between the "pros" of the ETX-90 and choosing a telescope with a larger aperture. I think the ETX-90 is a great value for $499: Mak-Cass optics, hard carry case, tripod carry bag. The two big negatives are: 3.5 inch aperture (I already have a 3 inch refractor so there will be no great improvement), and no motor focus (not even 3rd party).

So I am holding off on the scope. In the meantime I will be able to connect the ZWO camera to INDI and develop much-needed experience with it. I can do meteor showers with the 150 deg lens. And I have a fondness for appulses of the planets and the Moon; the zoom lens will give me a 30 deg FOV.

I made a trip to Home Depot yesterday and picked up the parts I need to install an outdoors CAT5 socket.

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Brian Morgan replied to the topic 'What type of science do you do with your instrument?' in the forum. 3 days ago

Thank you everyone for all the great ideas!

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Brian Morgan replied to the topic 'What type of science do you do with your instrument?' in the forum. 3 days ago

To be fair, I did not originate that idea. Last summer I participated in a "MakerSpace" build of a Pi-controlled telescope from scratch. From scratch, I mean from scratch. I wrote the GoTo algorithms in Python, designed the ADC boards for the axis encoders, and began developing the website. The leader of the project is an adjunct prof of Physics and Astronomy of a not-too-well-known university in a neighboring U.S. state. The professor and I parted ways after we had fundamental disagreements on how to engineer things. He was also trying to find a way to make money off of it, which I don't agree should be a motivating force. If it happens, it happens, but it should not guide you.

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Brian Morgan replied to the topic 'What type of science do you do with your instrument?' in the forum. 3 days ago

Regarding my interest in asteroid occultations, imagine if you could "pepper" the landscape with robotic scopes in the 6in to 10in range. Then you could collect data from many sites that could yield refinements to the orbit plus reveal the asteroid's profile, its shape, and rotation. I find that fascinating. Perhaps we could find a way to raise public interest and awareness, and have community libraries sponsor the build and cost of operation. And then when the scope is not used for that purpose you could offer web access to citizens, educators, and students to image whatever interests them.

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Brian Morgan created a new topic ' What type of science do you do with your instrument?' in the forum. 3 days ago

Asteroid occultations fascinate me but what other science can I contribute to?

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Brian Morgan replied to the topic 'Just getting started and need a little help' in the forum. 3 days ago

Thanks all, you've saved me money and heartache!

I think I am just going to run CAT5/6 cable. I am not even going to try wi-fi extenders and waps. I don't think it will turn out well.

Time to get out the measuring tape. If I were to venture a guess, I'd say 200 feet.

One thing I would like to do however is install an outdoors socket. That way I don't have to deal with mosquitoes getting in the house. It should be fairly easy to install since I am on the first floor and have an unfinished basement below me.

Are there any noise concerns with running cat5 in two segments (one from the router to the socket, the other from the socket to the telescope)?

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Brian Morgan replied to the topic 'Just getting started and need a little help' in the forum. 3 days ago

I am curious if anyone has a positive (or negative) experience using a "Powerline Network Adapter" such as the one for sale here on Amazon:
www.amazon.com/gp/product/B00Y3XRRI8/ref=ask_ql_qh_dp_hza

The idea is to use your home's electrical wiring as an extension of your local area network. The kit comes with two adapters. You plug one into a wall socket next to your router/modem connected by an Ethernet cable. The other adapter you take to some far region of your home having poor wi-fi coverage and then plug in the second adapter into a wall socket and connect your laptop to it with an Ethernet cable. Presto! You now have network connectivity, or at least that is the theory.

This is an attractive solution for me. My property is located in a rural setting but has lots of trees and hills to the east and west. Depending on what I want to image I will have to locate the scope to a different location. Up until this point I was certain that I would run all power to the telescope and Pi using a deep-cycle 12V battery. But there is still a missing component: I need network connectivity. I first considered using a wi-fi extender but now I am not very excited about that option after reading a lot of reviews. So I came across these Powerline Network Adapters. Now I am considering running a 100 ft electrical extension cord from my home to the telescope. That would give me power for the drive and the Pi but also, in theory, I should be able to plug in the Powerline Adapter. I am going to give it a try and see what happens.

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