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    LED System controlled with blob track through a Kinect in Isadora

    How To... ?
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    • E
      Elena last edited by

      Thank you @bonemap 

      MacBook Pro M3 Max
      32GB Ram
      Sonoma 14.6.1

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      • E
        Elena last edited by

        Hello,

        I cannot understand if the LeDMX4Pro allows enough pixels to allocate the two strips.


        Here is what I have got from the LeDMX4-Pro description

        • Up to 680 RGB pixels or 512 RGBW pixels per output spanning 4 DMX universes (2720 RGB pixels / 16 universes per board).
        • Up to 340 16bit RGB pixels or 256 16bit RGBW pixels per output. Requires firmware 3.3+
        • Automatic RGB / RGBW order correction and additional pixel re-mapping features.
        • Per pixel intensity control for APA102/SK9822 utilizing the 5bit current pre-regulator. Requires firmware 3.3+
        • Master Level control independent of incoming universe streams. Requires firmware 3.3+
        • Flexible Full Mapping option for outputs permitting any start address and zig-zag corrections for RGB, RGB16, RGBW and RGBW16 pixel types..

        Here is what I have got from the LED strip

        Individually addressable. Full Color, Programmable LED Strip, WS2812B LED, WS2811 IC Built in 5050SMD.256 Brightness Display and 24-Bit Color Display.
        With super bright SMD LED as light source, high brightness, low decay. Making LED screen, LED wall, billboard, apply to hotel, KTV, bars, outdoor advertising signs, Festivel Christmas or wedding decoration.

        They are 60 LED/m for a length of 5m

        So, here is the numbers I ran:

        60x5(meters)x3(RGB)=4500 pixels    per output    +60(position...?!?) 


        But the description of the LeDMX4-Pro says 680 RGB pixels per output. 

        So am I calculating this wrong or what? Can anyone explain how should I run this process so I get it once for all.

        Thanks

        Elena

        MacBook Pro M3 Max
        32GB Ram
        Sonoma 14.6.1

        DusX 1 Reply Last reply Reply Quote 0
        • DusX
          DusX Tech Staff @Elena last edited by

          @elena

          looks to me like you got the math wrong.
          60x5 = 300 (rgb leds)
          300x3 = 900 (DMX channels for RGB control)

          Each DMX universe has 512 channels.
          So using 2 Universes you can control your 5m led strip. 

          The LeDMX4 offers enough to handle both of your strips without any additional hardware (although you will need a ethernet router, since the LeDMX4 must connect to a router, and your computer to the same router)
          note: I use a cheap D-link home wifi router, that cost me $10 from a second hand store
          AND you need a power supply

          I have not yet setup this device to try to use more than 2 universes on a single output (it says it can do 4), but I am running 2 Universes on each of the 4 outputs.

          The DMXking configuration software is going to be your best friend getting this to work.
          To start you don't even really need to use Isadora, as you need to work out the connections/addressing, and can use one of the utilities features (opens another window) that lets you send DMX out in a number of ways.. to a full universe or to parts. This will allow you to more easily see how/if the led strips are addressed correctly.
          Once you know this information (and its saved to the LeDMX4 board) you can start to experiment with sending artnet to the same addresses.
          note: Its possible the universe addresses will not match. NOT SURE THIS IS THE CASE, but it may be that the DMXking software is using 1 thru 15 where isadora is using 0thru 15.
          Either way the output data on the Isadora Artnet actor helps make the selected universe easier to understand.

          Working out the addressing will probably be the hardest part of this, and may require some trial and error.

          Also, once connected to the LeDMX board, and using the DMXking utility to send DMX to the led strips, you will need to send full white to all the LEDS (better to start with 25%, then 50%, then 75, then 100%)
          This is so that you can see if the LEDs toward the end of the LED strips are getting enough power. Often, what you will see is that the LEDs toward the end of the strip are beginning to look orange, then red.. this is due to power issues.
          If that is the case, you need to wire in 'power injection' along the strip and/or supply more amperage. The LeDMX4 pro supplies 5amps of power per output, but this may not be enough for your strips.
          Your lights use: 18 W/ m, 0,3 W / LED
          so 5 meters of these lights will require, 18x5 = 90 watts (best to add 20% for buffer) so make that 108 watts
          With 2 of these strips running you are going to need minimum a 200 watt power supply. Thats a 40 amp (I would get 50) at 5v power supply. (for 2 strips... you may want double that if you want to extend this to use all 4 outputs at some point with more leds)

          You may want to consider using 12 or 24 v leds strips rather than 5v as they handle power loss over distance better (require less power injection).
          But they also can't be directly controlled via 5v controllers like Arduinos etc..(in case you want that flexibility for the future)

          Sorry this is a bit of a ramble... I was remembering things as I wrote.
          Let me know if you need more clarification etc.. 

          Troikatronix Technical Support

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          • E
            Elena last edited by

            @dusx said:

            The LeDMX4 offers enough to handle both of your strips without any additional hardware (although you will need a ethernet router, since the LeDMX4 must connect to a router, and your computer to the same router)

             Thank you so much, this is very helpful. I have several questions though and I am sure it is cause of my low experience. So I am going to have only 1 LeDMX4 for both the LED strips, correct? Then why can't I just connect the King to the laptop through ethernet cable?

            Let's start with this as I am still waiting for the components to arrive.

            Thanks

            Elena

            MacBook Pro M3 Max
            32GB Ram
            Sonoma 14.6.1

            DusX 1 Reply Last reply Reply Quote 0
            • DusX
              DusX Tech Staff @Elena last edited by

              @elena

               You can, but it requires 'harder' network config.

              To get started it will be much easier to use a router... once working you can then remove the router and reconfigure the networking to be static if you like.

              Troikatronix Technical Support

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              • E
                Elena last edited by Elena

                @DusX 

                Ok great. Sorry to be pain but this is fine using only one LeDMX 4. Just because the production is spending money and I don't want to mess up. Thanks

                MacBook Pro M3 Max
                32GB Ram
                Sonoma 14.6.1

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                • E
                  Elena last edited by Michel

                  @DusX 

                  This would work right? 8Port Network Switch 10/100Mbps Gigabit LAN POE Ethernet HUB Desktop-Adapter

                  MacBook Pro M3 Max
                  32GB Ram
                  Sonoma 14.6.1

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                  • Juriaan
                    Juriaan Tech Staff last edited by

                    Hi there @Elena,

                    You want a router not a network switch, you need an DHCP broker in your configuration to make sure that every single device gets an unique IP. Network Switches only work for static networks.

                    Isadora 3.1.1, Dell XPS 17 9710, Windows 10
                    Interactive Performance Designer, Freelance Artist, Scenographer, Lighting Designer, TroikaTronix Community moderator
                    Always in for chatting about interaction in space / performance design. Drop me an email at hello@juriaan.me

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                    • DusX
                      DusX Tech Staff @Elena last edited by

                      @elena

                      As @Juriaan said.

                      Troikatronix Technical Support

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                      • E
                        Elena last edited by Michel

                        @juriaan and @DusX 

                        Thank you both for the patience. I know I am very annoying.

                        Would this work then? Router ASUS RT-N12 Wireless-N300

                        MacBook Pro M3 Max
                        32GB Ram
                        Sonoma 14.6.1

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                        • DusX
                          DusX Tech Staff @Elena last edited by

                          @elena

                          Yes. I beleive I have used the same model at one time also.

                          And your not annoying, this is a complicated thing to work out, especially the first time.

                          Have you found a power supply yet?

                          Troikatronix Technical Support

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                          • E
                            Elena last edited by Elena

                            @DusX 

                            Ok thank you for confirming the router. So... for the power supplier, I have a 500mA which based on the numbers you ran above, doesn't seem to be enough.

                            Now, I don't know if I should go for 12-24 V LED and so also for the correspondent variant of the King. 

                            I am going to use only 4m per strip, cause that is how much my length is, but if you say I should just go for the 12-24V also to be able to keep it open also to future different applications...

                            So do I look for 200W/12V= 17 -> 20amp...? which is the highest amp for 12-24V? 

                            Also I will need some cables extension cause I have to take both the strips, one at the top, one at the bottom, like in the first drawing up there... and connect them to the DMXking which will be somewhere around there... then I have to go to the router offstage and then to the laptop. 


                            Also when you say power injection, does it mean I have to solder? Cause I don't have anything to do so...

                            Thanks again for all your help

                            MacBook Pro M3 Max
                            32GB Ram
                            Sonoma 14.6.1

                            DusX 1 Reply Last reply Reply Quote 0
                            • DusX
                              DusX Tech Staff @Elena last edited by DusX

                              @elena

                              I would recommend reading this page..  it appears to be a pretty good overview of power injection.  http://spikerlights.com/pwrinj...

                              Yes, you may need to soldier.

                              20 amps is not the max. It is simply the max that the ledmx4-pro can output ( 5 amps per channel) BUT you can connect, for example a 60 amp power supply to the ledmx4-pro. Only 20 amps will flow thru the ledmx4-pro the other 40 amps are still available for power injection. This is what I have typically done. You can run the positive and negatives from the power supply to the ledmx4-pro and to the + - lines of the led strips every X number of leds (this is your power injection).

                              You can do this easily with 1 power supply since the ground is common. 

                              This gets slightly more complicated if you want to use multiple power supplies.ļ

                              Troikatronix Technical Support

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                              • E
                                Elena last edited by

                                Thank you for the heads up. So, I read it and I feel it is really going beyond my competences and also I don't have the equipment to solder. 

                                Is there a world where I can have the LED strips fairly bright for 4M length without having to do power injection?

                                @DusX Thank you for all your help on this. I really appreciate it.  

                                Elena

                                MacBook Pro M3 Max
                                32GB Ram
                                Sonoma 14.6.1

                                bonemap 2 Replies Last reply Reply Quote 0
                                • Juriaan
                                  Juriaan Tech Staff last edited by

                                  Hi there Elena,


                                  Not really, if you want to do White for example all 3 of the colors need to be full on (Causing some powerdrop down the line). The length that you describe is just too much..

                                  What you can try is adding power injection at both sides. So on the input side of the strip and the other side. (Power doesn't know what direction is, so this is a valid option), that will give you double the power, perhaps this is enough. If it isn't, you can always play around with the brightness of the strip to see or that causes the problem to disspear.


                                  If all of the above fails, you should get your solder station and make some easy soldering :)

                                  Isadora 3.1.1, Dell XPS 17 9710, Windows 10
                                  Interactive Performance Designer, Freelance Artist, Scenographer, Lighting Designer, TroikaTronix Community moderator
                                  Always in for chatting about interaction in space / performance design. Drop me an email at hello@juriaan.me

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                                  • bonemap
                                    bonemap Izzy Guru @Elena last edited by

                                    @elena said:

                                    I don't have the equipment to solder

                                     There are solderless connector options available: like this and this

                                    best wishes

                                    Russell

                                    http://bonemap.com | Australia
                                    Izzy STD 4.2 | USB 3.6 | + Beta
                                    MBP 16” 2019 2.4 GHz Intel i9 64GB AMD Radeon Pro 5500 8 GB 4TB SSD | 14.5 Sonoma
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                                    • bonemap
                                      bonemap Izzy Guru @Elena last edited by

                                      @elena said:

                                      Is there a world where I can have the LED strips fairly bright for 4M length

                                      Hi,

                                      This also depends on the pitch (frequency of LED along the strip). 

                                      The pitch of standard supply LED strips are 30, 60, or 144 per metre. I have used 5m strips on the LeDMX Pro that are 30 LED per meter without any noticeable drop-off. In terms of creating a quality of light that is continuous the LED's can be diffused with products like this

                                      best wishes

                                      Russell

                                      http://bonemap.com | Australia
                                      Izzy STD 4.2 | USB 3.6 | + Beta
                                      MBP 16” 2019 2.4 GHz Intel i9 64GB AMD Radeon Pro 5500 8 GB 4TB SSD | 14.5 Sonoma
                                      Mac Studio 2023 M2 Ultra 128GB | OSX 15.3 Sequoia
                                      A range of deployable older Macs

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                                      • DusX
                                        DusX Tech Staff last edited by DusX

                                        another thing to consider is that the need for power injection is less if you are not turning all leds white at the same time.

                                        For example if you wanted to move a Red block of leds (say 1m wide) the other 3m of leds would be off and you wouldn't need power injection. 

                                        As Juriaan said, connecting the power to both ends is probably the easiest way to extend the normal (single sided) setup.

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