Author Topic: P10 1/8scan 16x32 panels - current low price $11/ea + ship by Ray Wu  (Read 11459 times)

Offline Charles Belcher

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Re: P10 1/8scan 16x32 panels - current low price $11/ea + ship by Ray Wu
« Reply #15 on: July 19, 2015, 08:10:11 PM »
Charles, while the Octoscroller / BBB  can support 64 panels, because of ribbon cabling, I think you'll need 2 BBBs.  First one in the middle of 6 and 6. Second between the next 6 and 6.

If you only needed 16, then you could do 8 and 8.

Jon,

That is what I thought would be the case.  You actually showed me the matrix outside the little room on Thursday but that was my first look.  Glad to see you are nearby Rowlett (Dallas suburb).  I am certain that I will need help when the time comes.

Is this because of the overall combined length of the ribbon cable going out 12 panels in each direction from center or because the outputs on the octoscroller will only do 8 per?

Charles
Loser in the 2014 Great Light Fight

Offline JonB256

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Re: P10 1/8scan 16x32 panels - current low price $11/ea + ship by Ray Wu
« Reply #16 on: July 19, 2015, 08:48:31 PM »
I'm certain that ribbon cable length, just like pixel wire length, is a "distance to first device" problem.

If, as BradsXmasLights says, the 5M length has no problems, then you should be able to get the job done with a single BBB and Octoscroller.

Since you want to do 24, my suggestion would be:

From left to right:  8 panels on an output, then 4 panels. Then the BBB in the middle. Then 4 panels, then the last 8 panels. That would mean even your longest run is well under 5M


Offline neilric99

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Re: P10 1/8scan 16x32 panels - current low price $11/ea + ship by Ray Wu
« Reply #17 on: July 19, 2015, 10:09:36 PM »
I think there is a limit of 256 pixels (8 of the 32x16 panels) on each of the 8 octoscroller outputs.


Offline patdelaney

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Re: P10 1/8scan 16x32 panels - current low price $11/ea + ship by Ray Wu
« Reply #18 on: July 20, 2015, 05:31:41 AM »
I have a 2 meter ribbon cable, I can test that later today. I need to put ends on it.

Pat


Offline patdelaney

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Re: P10 1/8scan 16x32 panels - current low price $11/ea + ship by Ray Wu
« Reply #19 on: July 20, 2015, 06:45:46 AM »
I tested a 2 meter cable and that looked just fine. I don't have anything longer at this point to test with.
FYI My test was just with a single panel.

A better test, that I can do later is to use it in on my 24 panel matrix. That way I will be able to see if the intensity of the colors changes on the section of the display that has the longer cable.

Pat

Offline JonB256

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Re: P10 1/8scan 16x32 panels - current low price $11/ea + ship by Ray Wu
« Reply #20 on: July 20, 2015, 07:29:07 AM »
I tested a 2 meter cable and that looked just fine. I don't have anything longer at this point to test with.
FYI My test was just with a single panel.

A better test, that I can do later is to use it in on my 24 panel matrix. That way I will be able to see if the intensity of the colors changes on the section of the display that has the longer cable.

Pat

Pat, thanks for testing. 2 Meter cables will make some pretty big displays possible. 5 Meter is even crazier!

Offline CaptainMurdoch

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Re: P10 1/8scan 16x32 panels - current low price $11/ea + ship by Ray Wu
« Reply #21 on: July 20, 2015, 01:29:14 PM »
Now we need someone to test the max distance between panels. :)

Theoretically, if you can go 4 feet between panels, then you could span a 64-foot width with a single BBB/Octoscroller by interleaving the panels and chains.

Left end
Output 1 Panel 8
Output 2 Panel 8
Output 3 Panel 8
Output 4 Panel 8
Output 1 Panel 7
Output 2 Panel 7
...
Output 1 Panel 2
Output 2 Panel 2
Output 3 Panel 2
Output 4 Panel 2
Output 1 Panel 1
Output 2 Panel 1
Output 3 Panel 1
Output 4 Panel 1
BBB
Output 5 Panel 1
Output 6 Panel 1
Output 7 Panel 1
Output 8 Panel 1
Output 5 Panel 2
Output 6 Panel 2
Output 7 Panel 2
Output 8 Panel 2
...
Output 5 Panel 8
Output 6 Panel 8
Output 7 Panel 8
Output 8 Panel 8
Right End
-
Chris

Offline patdelaney

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Re: P10 1/8scan 16x32 panels - current low price $11/ea + ship by Ray Wu
« Reply #22 on: July 20, 2015, 03:48:38 PM »
I need a longer cable to test, but I also want to put a really long cable in my current matrix and see if there is any "Loss".
I'm not sure exactly what is going on under the covers, but my thought is that my current "Jumbotron" is 24 panels. That is eight panels per output.
The configuration is 8 panels wide by 3 panels high, all mounted vertically.
Row 1 is on output 1, row 2 is on output 2,... and so on.

I want toe test a really long cable on row 2. If there is any loss, I should be able to see it.

Pat

Offline AussiePhil

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Re: P10 1/8scan 16x32 panels - current low price $11/ea + ship by Ray Wu
« Reply #23 on: July 21, 2015, 06:51:22 PM »
Hey Captain, didn't think of interleaving the panels and yes that can make mega arrays possible, easy to test as well

 

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