DiyLightAnimation
Hardware => Lynx Smart String => Topic started by: travailen on August 29, 2012,
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I'm laying out my show and can see some advantages to having some SSC's a little distance from the first pixel. I would like to run the cable between the SSC and the first pixel about 10 feet. Has anybody had any experience with this spacing. Also, are there any guidelines regarding the SSC pixel spacing?
Thanks,
Rick S
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The question comes up often, but I never write down the answer or mark the thread.
I think it would be a great service to record a summary of the cable lengths.
I'd like to see pixelnet lengths,
DMX lengths,
SSC (to first pixel) lengths,
max length between pixels,
...and I'd even like to see the impact of wire gauge on amps for the 110v wiring.
Putting this info in the wiki would be great.
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Keep the distance short to the first pixel or you will have problems. There is another thread about it but I can't look it up easily on my phone. Initially the title mentioned a possible bug which later turned out to be something else causing the problem. In the thread RJ mentions changing a resistor to get more distance to the first node. With the original resistor I wouldn't go beyond 2 feet. The symptoms are the first node will be a different color than the rest. And the rest will often be the wrong color.
Sent from my Thunderbolt using Tapatalk 2.
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I believe this contains what your asking about the SSC's
http://diylightanimation.com/index.php?action=dlattach;topic=3554.0;attach=4452 (http://diylightanimation.com/index.php?action=dlattach;topic=3554.0;attach=4452)
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There is an issue that one of our members (Corey) pointed out to me that is causing this. I have been testing a firmware update that seems to make it solid and should make the 6 ft I have always used as a max length not a problem agian. There is too many variables to use 10ft as a promise. You may do this all day no problem. But I can't promise it as it is getting long for the type of comminucations were talking about.
Most people are telling me it is not creating a problem on the normal length of lead on the strings they come with. But longer can cause this issue on the current firmware/hardware setup.
RJ
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Is there a guesstimate on when the new SSC firmware will be released and will that be posted on the wiki and a thread noted about it in the forum to let everyone know to update their SSC's?
Thanks again for all your hard work RJ
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yes, once it has been tested well.
It is a few weeks away yet.
RJ
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yes, once it has been tested well.
It is a few weeks away yet.
RJ
Should we hold off on replacing the resistor then? Or is it a combo new firware and resistor replacement?
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yes, once it has been tested well.
It is a few weeks away yet.
RJ
Should we hold off on replacing the resistor then? Or is it a combo new firware and resistor replacement?
Good question- forgot to ask that one! Thanks
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I would hold off on making any changes until the changes have been approved and released.
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I would not mod anything yet.
RJ
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Perfect- thanks
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Okie dokey my replacement resistors are still in a bag. Now back to sequencing for me! Well after work that is.
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Ok another question! My length between the controller and the first nodes are less than two feet, I have cut my flex strips in half, I soldered the halves to more wire, programmed all my strips. Tested then, but myself and another DLY member have had the same experience. On one of the cut halves which is the back half, it appears that the last 3 nodes are not working. I am having this issue with two strips. All nodes were working fine before I cut them. The other three halves are working fine as well. I have programmed them twice over, rechecking their numbers, still to no avail. I was testing them with all strips on using color finder, also using test sequences in vixen from nutcracker to test. I have switched those two strips to two other ssc's and the last three nodes still don't come on. I've checked the soldering, there doesn't appear to be any bridging that I can see. But if they were working before the cut and not after the cut, any ideas for more troubleshooting?? I am at a brick wall now!
Thanks
Julie
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Would this be an instance where I would need to change the resistor to 150 ohm on the SSC? Even if it's for a flex strip and not a string? To help those last 3 nodes speak so to say?
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I have cut my TM1809 strips into 4 equal sections (30 nodes each) and soldered 6 feet of cable in between the sections without any problem.
So I am at a loss too regarding your problem. Each one of your sections is 60 nodes? And you are controlling them with 120 RGB channels with SSC programmed to pixel mode?
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Yes they are 60 nodes each. I have 10 strings. That are all half cuts of 60 nodes each. They are all programmed with 180 channels, using etherdongle flashed to pixel, active hub, ssc's flashed, etc. All 8 of 10 half strings work perfectly except for the 2 that the last nodes which if they were still full strips the nodes would be 118,119,120 on both strips. Another DLA member has the exact same issue as well but only with one string. Exact same nodes also. His are also but in half with the exact same setup as mine. So we are both at a loss here as we have the same oddity going on. But all other strings program and work perfectly.
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Each section is 60 nodes, each section has it's own SSC. Out of the 17 flex strips we purchased we've successfully cut 8 of those and 3 have developed the same problem. Testing was done on all 17 strips prior to cutting, all seemed to be in perfect working condition, all 120 nodes on all strips working properly. After cutting, three of the strips, the original nodes 118,119 and 120 (same nodes on each strip) (new node #'s 58,59 and 60) now seems to be not receiving any signal at all.
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Sorry Joe, I forgot it was 3 strings! :o
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I have done 8 strips cut in half and now have a 16 string x 60 pixel mega tree. All my pixels work, but I have one in the middle of one strip that stays on whenever there is power on so I just call that my pilot light. It seems to work fine when programmed. When you soldered to the cut strips did you join the two middle solder points together?
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I have done about 24 strips, 16 are connected to SSC version 1, and 8 are connected to SSC version 2. Node length varies from 24 nodes to 120 nodes.
All my LED Flexstrips work fine (although the length from the SSC is less than 12 inches), although I also have one strip when on node stays Blue, similar to jneland and it works fine when changing the nodes color.
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Does the SSC(s) have the correct amount of nodes assigned to it with the SS Utility program?
Rick R.
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Ok yes I joined the two middle ones with solder on all strips, and yes they have been assigned the correct number of nodes with utility tool and have been double checked twice over for right number of nodes and channel assignment. They all work right when being tested in vixen, but just those last 3 on each strip do not turn on. These are all V2 ssc's as well. All ssc's have been verified and have the correct checksum. Have swapped them with other strips and the strips still do the same thing regardless of what SSC they are attached to. When all the rest complete working strips come on full. I don't have any nodes that come on and stay solid when power is on them. They pretty much do as they are told except for those last 3 on 2 strips.