# sACN filteren van data

**URL:** <https://discourse.nodered.org/t/sacn-filteren-van-data/46609>\
**Category:** General\
**Created:** [2 June 2021 16:37 UTC](https://discourse.nodered.org/t/sacn-filteren-van-data/46609 "2021-06-02T16:37:03Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![bvt-events](https://avatars.discourse-cdn.com/v4/letter/b/a8b319/32.png) [@bvt-events](https://discourse.nodered.org/u/bvt-events)\
**Post date:** [2 June 2021 16:37 UTC](https://discourse.nodered.org/t/sacn-filteren-van-data/46609/1 "2021-06-02T16:37:03Z")

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good afternoon,

who could help me with the following.

I receive sACN from a light desk (for a light show), I also see this coming in via a debug.

this string consists of 512 steps, I would like to filter this so that only step 5 can pass.

the value is only 0 to 255 and this should be between 0 and 100%.

who knows the solution to make this. added the flow.

groet barry

[{"id":"46a2b97a.cdf2b8","type":"tab","label":"Westhof","disabled":false,"info":""},{"id":"3175211a.dce70e","type":"sacn\_in","z":"46a2b97a.cdf2b8","name":"welkom allemaal","universe":1,"interval":"5000","x":280,"y":220,"wires":[["f7acad9.23bc85"]]},{"id":"f7acad9.23bc85","type":"debug","z":"46a2b97a.cdf2b8","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"payload","targetType":"msg","statusVal":"","statusType":"auto","x":600,"y":240,"wires":}]

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<div class="post-metadata">

**Author:** ![E1cid](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/e1cid/32/77971_2.png) [@E1cid](https://discourse.nodered.org/u/E1cid)\
**Post date:** [2 June 2021 16:50 UTC](https://discourse.nodered.org/t/sacn-filteren-van-data/46609/2 "2021-06-02T16:50:48Z")

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It would be best to give an example of your string.

Your flow is corrupt as you posted it without backticks  
e.g.  
```  
code  
```

You can use the range node to change 0-255 to 0-100.  
As to your string, as we have not seen it, all I can offer is look at the split node to create an array

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**Author:** ![jovee](https://avatars.discourse-cdn.com/v4/letter/j/bbce88/32.png) [@jovee](https://discourse.nodered.org/u/jovee)\
**Post date:** [7 June 2021 05:26 UTC](https://discourse.nodered.org/t/sacn-filteren-van-data/46609/3 "2021-06-07T05:26:35Z")

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yep, range node + post the string, likely can be solved with a function.

while we're on the topic of sACN, does anyone have a good method for sending out sACN data? I see that there are several contrib-nodes that might do this, but they seem like dead projects. i had some loose success with the [node-red-contrib-sacn (node) - Node-RED](https://flows.nodered.org/node/node-red-contrib-sacn) node, but it soon stopped working altogether. no success using OLA + the OLA node, but i also don't have a comp-sci degree...

my goal is to control and (loosely) animate around 30 meters of 30px/m strip, WS2812b, divided into a few universes, controlled by an advatek pixlite IV. thanks to a handy LFO node, the animations won't be an issue (they're not super sophisticated, and i'm trying to achieve this with a raspberry pi, rather than upgrade to a windows box to use touchdesigner), but getting consistent communication to the LED has been the issue.

any sage wisdom out there?

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**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\
**Post date:** [6 August 2021 05:26 UTC](https://discourse.nodered.org/t/sacn-filteren-van-data/46609/4 "2021-08-06T05:26:59Z")

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