# Latest

**URL:** https://discourse.nodered.org/latest.md?page=1347

[Latest](https://discourse.nodered.org/latest.md) · [Categories](https://discourse.nodered.org/categories.md) · [Tags](https://discourse.nodered.org/tags.md)

**Page:** 1348

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## [How to store device(Sonoff,s) status in database using node-red?](https://discourse.nodered.org/t/how-to-store-device-sonoff-s-status-in-database-using-node-red/4765)

<div class="topic-metadata">

**Author:** [@ahmad](https://discourse.nodered.org/u/ahmad)\
**Replies:** 4\
**Last updated:** [11 November 2018 13:36 UTC](https://discourse.nodered.org/t/how-to-store-device-sonoff-s-status-in-database-using-node-red/4765 "2018-11-11T13:36:48Z")

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I want to store device's status e.g which device connected to mqtt or which device is sending signals(ON,OFF) to mqtt.

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## [Sudo in Exec node](https://discourse.nodered.org/t/sudo-in-exec-node/4762)

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**Author:** [@hazymat](https://discourse.nodered.org/u/hazymat)\
**Replies:** 1\
**Last updated:** [11 November 2018 08:25 UTC](https://discourse.nodered.org/t/sudo-in-exec-node/4762 "2018-11-11T08:25:36Z")

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I'd like to run the following command when I press a button in the dashboard: sudo systemctl restart socat.service When I use the exec mode to do so, its output is this: sudo: no tty present and no askpass program spec…

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## [3D plot in NodeRed](https://discourse.nodered.org/t/3d-plot-in-nodered/4602)

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**Author:** [@e0003315](https://discourse.nodered.org/u/e0003315)\
**Replies:** 11\
**Last updated:** [11 November 2018 00:47 UTC](https://discourse.nodered.org/t/3d-plot-in-nodered/4602 "2018-11-11T00:47:24Z")

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Hi, Does anyone know how to plot a 3d scatter plot in node red? A flow example will be great! I want to create a plot that allows inputs and update in real time.

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## [New category for "Getting started"](https://discourse.nodered.org/t/new-category-for-getting-started/4733)

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**Author:** [@krambriw](https://discourse.nodered.org/u/krambriw)\
**Replies:** 1\
**Last updated:** [10 November 2018 21:19 UTC](https://discourse.nodered.org/t/new-category-for-getting-started/4733 "2018-11-10T21:19:17Z")

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I have full respect, we have all been beginners at some point and therefore I try myself to help fellows as much where I feel I can contribute But lately the General category on board has become so fully crowded, almost…

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## [How do you check HTML as multiple messages?](https://discourse.nodered.org/t/how-do-you-check-html-as-multiple-messages/4751)

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**Author:** [@MichalNemecek](https://discourse.nodered.org/u/MichalNemecek)\
**Replies:** 12\
**Last updated:** [10 November 2018 20:41 UTC](https://discourse.nodered.org/t/how-do-you-check-html-as-multiple-messages/4751 "2018-11-10T20:41:40Z")

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Hi, I am trying to process data from supremenewyork.com/shop. I have this chain so far. HTTP input \> HTTP request \> HTML \> HTML \> join \> HTTP response. the HTTP request gets the wanted site, the first HTML gets the HTML …

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## [Switch node causes Feedback!](https://discourse.nodered.org/t/switch-node-causes-feedback/4757)

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**Author:** [@Gaff](https://discourse.nodered.org/u/Gaff)\
**Replies:** 2\
**Last updated:** [10 November 2018 18:58 UTC](https://discourse.nodered.org/t/switch-node-causes-feedback/4757 "2018-11-10T18:58:32Z")

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Hi, I've noticed that the swicth node is causing feedback. Perhaps it's simplest to explain with a diagram: When I click on the ON inject node the following happens: Nodered sends a power on command over MQTT Sonoff…

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## [IR Detector - the project that grew and grew](https://discourse.nodered.org/t/ir-detector-the-project-that-grew-and-grew/4738)

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**Author:** [@dynamicdave](https://discourse.nodered.org/u/dynamicdave)\
**Replies:** 2\
**Last updated:** [10 November 2018 17:06 UTC](https://discourse.nodered.org/t/ir-detector-the-project-that-grew-and-grew/4738 "2018-11-10T17:06:04Z")

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The project that 'grew and grew'. Here's a link to an instruction sheet, for my IoT students, on how to interface an InfraRed (IR) detector to a WeMos D1 Mini.. Note: This exercise uses a WeMos D1 Mini, Node-RED and MQ…

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## [Editable table in template node](https://discourse.nodered.org/t/editable-table-in-template-node/461)

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**Author:** [@karlbo](https://discourse.nodered.org/u/karlbo)\
**Replies:** 11\
**Last updated:** [10 November 2018 06:33 UTC](https://discourse.nodered.org/t/editable-table-in-template-node/461 "2018-11-10T06:33:55Z")

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Hi, i will move this topic from groups in google forum to here my problem: im sending data from mysql to template node displaying in a table. im using the code of Steve Rickus, great code by the way some changes incl…

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## [Node-Red uses UTC](https://discourse.nodered.org/t/node-red-uses-utc/4712)

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**Author:** [@DerekG007](https://discourse.nodered.org/u/DerekG007)\
**Replies:** 3\
**Last updated:** [10 November 2018 00:36 UTC](https://discourse.nodered.org/t/node-red-uses-utc/4712 "2018-11-10T00:36:29Z")

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Why does node-red convert time to utc. I have records in a mysql data that is stored in local time. When you execute the stored procedure from phpMyAdmin, the datetime field is correct, but for some reason the mysql co…

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## [HTTP request node makes node-red freeze when waiting for response?](https://discourse.nodered.org/t/http-request-node-makes-node-red-freeze-when-waiting-for-response/4700)

<div class="topic-metadata">

**Author:** [@mmoole](https://discourse.nodered.org/u/mmoole)\
**Replies:** 2\
**Last updated:** [9 November 2018 23:05 UTC](https://discourse.nodered.org/t/http-request-node-makes-node-red-freeze-when-waiting-for-response/4700 "2018-11-09T23:05:58Z")

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Hi, at first I thought I might have done something wrong so I set up my raspberry 1 again completely fresh with node-red. But after this I am running into the same problem again, so here it is: Node-red on a Raspberry …

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## [Encoding 4 byte Float value](https://discourse.nodered.org/t/encoding-4-byte-float-value/4727)

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**Author:** [@aabbas](https://discourse.nodered.org/u/aabbas)\
**Replies:** 2\
**Last updated:** [9 November 2018 21:56 UTC](https://discourse.nodered.org/t/encoding-4-byte-float-value/4727 "2018-11-09T21:56:07Z")

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Hi, I am trying to convert 4 byte float value to decimal. Here you find the encoding steps : Thank you for help

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## [SNMP Set - NoSuchName](https://discourse.nodered.org/t/snmp-set-nosuchname/4697)

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**Author:** [@jch360](https://discourse.nodered.org/u/jch360)\
**Replies:** 20\
**Last updated:** [9 November 2018 21:49 UTC](https://discourse.nodered.org/t/snmp-set-nosuchname/4697 "2018-11-09T21:49:06Z")

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I am trying to just pass a simple value across and seem to be encountering a problem. Any suggestions on this? I have confirmed the value being set is a Unsigned32 \[ { "oid": "1.3.6.1.4.1.29956.3.1.2.1.1.6.1", "type…

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## [Sending msg.payload inside template function](https://discourse.nodered.org/t/sending-msg-payload-inside-template-function/4669)

<div class="topic-metadata">

**Author:** [@BastianG](https://discourse.nodered.org/u/BastianG)\
**Replies:** 3\
**Last updated:** [9 November 2018 19:56 UTC](https://discourse.nodered.org/t/sending-msg-payload-inside-template-function/4669 "2018-11-09T19:56:30Z")

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Hi All. I'm using a dashboard template to make some buttons. Each button fires an simple function inside the template. I have problems sending a msg.payload from the function. I can't use the predefined ng-click. Here…

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## [Export Charts to Jpeg](https://discourse.nodered.org/t/export-charts-to-jpeg/4693)

<div class="topic-metadata">

**Author:** [@Jeremy](https://discourse.nodered.org/u/Jeremy)\
**Replies:** 5\
**Last updated:** [9 November 2018 17:26 UTC](https://discourse.nodered.org/t/export-charts-to-jpeg/4693 "2018-11-09T17:26:56Z")

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Hello everyone, I have a question that I can not solve. My flow creates graphs of temperature, co2 etc. I would like the graphics to be saved automatically, at specific times for example, like jpg, to be able to reco…

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## [A node-red-contrib-dsm question](https://discourse.nodered.org/t/a-node-red-contrib-dsm-question/4723)

<div class="topic-metadata">

**Author:** [@Colin](https://discourse.nodered.org/u/Colin)\
**Replies:** 3\
**Last updated:** [9 November 2018 16:54 UTC](https://discourse.nodered.org/t/a-node-red-contrib-dsm-question/4723 "2018-11-09T16:54:02Z")

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I have a question about the dsm node. I am looking at the hysteresis example on the wiki \[1\] and I want to change it so that it only sends a message on the way down and does nothing on the way up. I tried "cro…

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## [Telegram bot, inline keyboard](https://discourse.nodered.org/t/telegram-bot-inline-keyboard/4714)

<div class="topic-metadata">

**Author:** [@Folgore](https://discourse.nodered.org/u/Folgore)\
**Replies:** 3\
**Last updated:** [9 November 2018 13:44 UTC](https://discourse.nodered.org/t/telegram-bot-inline-keyboard/4714 "2018-11-09T13:44:39Z")

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Hi, I have create a telegram bot. I have create my inline keybord. Now I want update the message and the button. The button texti !\[Screenshot\_20181109-101337\_\_01|281x500\](upload://8Usl61XozxE5ZSptbAxjTlUbtU2.j peg) s no…

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## [Is it Possible to Collect Datas with Visualizing with Nodered](https://discourse.nodered.org/t/is-it-possible-to-collect-datas-with-visualizing-with-nodered/3818)

<div class="topic-metadata">

**Author:** [@wtrk](https://discourse.nodered.org/u/wtrk)\
**Replies:** 41\
**Last updated:** [9 November 2018 12:02 UTC](https://discourse.nodered.org/t/is-it-possible-to-collect-datas-with-visualizing-with-nodered/3818 "2018-11-09T12:02:18Z")

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I done something with dsm node and when the device shut down and up it is showing in dashboard. My question is this is it possible to any statistic showing with nodered like acronis dashboard pict below?

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## [Question from a noob: Connecting to sqlite 3](https://discourse.nodered.org/t/question-from-a-noob-connecting-to-sqlite-3/4675)

<div class="topic-metadata">

**Author:** [@Eclairee](https://discourse.nodered.org/u/Eclairee)\
**Replies:** 7\
**Last updated:** [9 November 2018 10:40 UTC](https://discourse.nodered.org/t/question-from-a-noob-connecting-to-sqlite-3/4675 "2018-11-09T10:40:45Z")

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Hi!! I'm new using node - red. My project is basically this one So here my question: How can I get the values from ehall and gas in order to send to my DB? how can I get the 10 higher values from the bd? or can i …

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## [Set deploy "modified node only" by default](https://discourse.nodered.org/t/set-deploy-modified-node-only-by-default/4689)

<div class="topic-metadata">

**Author:** [@sragneau](https://discourse.nodered.org/u/sragneau)\
**Replies:** 3\
**Last updated:** [9 November 2018 08:11 UTC](https://discourse.nodered.org/t/set-deploy-modified-node-only-by-default/4689 "2018-11-09T08:11:15Z")

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Hi, Is there any file where we can inform the application to start with the option deploy : "modified node only" thx in advance.

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## [Does node-red supports over the air (OTA) update?](https://discourse.nodered.org/t/does-node-red-supports-over-the-air-ota-update/4674)

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**Author:** [@ahmad](https://discourse.nodered.org/u/ahmad)\
**Replies:** 10\
**Last updated:** [9 November 2018 02:34 UTC](https://discourse.nodered.org/t/does-node-red-supports-over-the-air-ota-update/4674 "2018-11-09T02:34:29Z")

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I have to upgrade my Sonoff Tasmoda firmware through OTA using node-red platform. Please help me to achieve this. It would be highly appreciated. Best Regards: Ahmad

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## [Error with neopixels](https://discourse.nodered.org/t/error-with-neopixels/3379)

<div class="topic-metadata">

**Author:** [@cymplecy](https://discourse.nodered.org/u/cymplecy)\
**Replies:** 14\
**Last updated:** [9 November 2018 00:27 UTC](https://discourse.nodered.org/t/error-with-neopixels/3379 "2018-11-09T00:27:14Z")

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Setup a new pi - installed Node-RED from script - added Blocky and Neopixel nodes using palette I'm getting this showing up in editor and this in the terminal window pi@27Jun18\_19Sep18:~/.node-red $ node-red 23 Sep …

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## [Export menu disabled](https://discourse.nodered.org/t/export-menu-disabled/4698)

<div class="topic-metadata">

**Author:** [@machadotiago](https://discourse.nodered.org/u/machadotiago)\
**Replies:** 2\
**Last updated:** [8 November 2018 21:40 UTC](https://discourse.nodered.org/t/export-menu-disabled/4698 "2018-11-08T21:40:02Z")

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Hello all! I have a suggestion for the export functionality. When you want to export all Flows (for backup reasons) the first act, by instinct, is to click on Menu and then Export. Unfortunately, when you do this, the…

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## [Shared subflow context](https://discourse.nodered.org/t/shared-subflow-context/3596)

<div class="topic-metadata">

**Author:** [@adesjardins](https://discourse.nodered.org/u/adesjardins)\
**Replies:** 11\
**Last updated:** [8 November 2018 21:10 UTC](https://discourse.nodered.org/t/shared-subflow-context/3596 "2018-11-08T21:10:20Z")

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Hello, That'd be useful if there was a context that would be shared by every instances of a subflow. It's like having private static variables in a class. Every instances of the class have access to theses static variab…

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## [Isolate a value](https://discourse.nodered.org/t/isolate-a-value/4661)

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**Author:** [@rogier](https://discourse.nodered.org/u/rogier)\
**Replies:** 3\
**Last updated:** [8 November 2018 19:19 UTC](https://discourse.nodered.org/t/isolate-a-value/4661 "2018-11-08T19:19:37Z")

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Hello, Iam looking for a solution to isolate a "value" with the Function Node. The Node have 2 outputs. The value is 0 or 1, If it is 0 a output must deploy a 1, the other output does nothing if de value is 1 the ot…

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## [Smarthome integrations](https://discourse.nodered.org/t/smarthome-integrations/4686)

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**Author:** [@ksvan](https://discourse.nodered.org/u/ksvan)\
**Replies:** 1\
**Last updated:** [8 November 2018 18:15 UTC](https://discourse.nodered.org/t/smarthome-integrations/4686 "2018-11-08T18:15:10Z")

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After a while I got the need to make different IoT solutions in my house work together, and integrating not-so-smart or not-open things as well. Currently very satisfied with Netatmo reporting too high C02 levels, the…

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## [Raspberry Pi Modbus TCP, port 502 not listening](https://discourse.nodered.org/t/raspberry-pi-modbus-tcp-port-502-not-listening/4625)

<div class="topic-metadata">

**Author:** [@kfsoo01](https://discourse.nodered.org/u/kfsoo01)\
**Replies:** 13\
**Last updated:** [8 November 2018 17:54 UTC](https://discourse.nodered.org/t/raspberry-pi-modbus-tcp-port-502-not-listening/4625 "2018-11-08T17:54:31Z")

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Hi, I installed node-red in my Raspberry Pi, and would like to apply with Modbus TCP; however, it is not listening on port 502. Please help.. pi@raspberrypi:~ $ netstat --tcp --listening Active Internet connections (o…

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## [Get web html5 position](https://discourse.nodered.org/t/get-web-html5-position/4408)

<div class="topic-metadata">

**Author:** [@did](https://discourse.nodered.org/u/did)\
**Replies:** 2\
**Last updated:** [8 November 2018 15:12 UTC](https://discourse.nodered.org/t/get-web-html5-position/4408 "2018-11-08T15:12:23Z")

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HI all, do you know how to get the web browser position (gps) from html5. I have found the code, but how implement it ??!!! Anyone can create a node for this please ?

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## [Extract object name and put it in a flow variable (help needed)](https://discourse.nodered.org/t/extract-object-name-and-put-it-in-a-flow-variable-help-needed/4676)

<div class="topic-metadata">

**Author:** [@iridiu](https://discourse.nodered.org/u/iridiu)\
**Replies:** 3\
**Last updated:** [8 November 2018 13:36 UTC](https://discourse.nodered.org/t/extract-object-name-and-put-it-in-a-flow-variable-help-needed/4676 "2018-11-08T13:36:44Z")

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I am trying to setup a router from Node-Red dashboard via JSON-RPC, payload response received from router is a JSON object: {"\_msgid":"124cf3d6.b47a9c","topic":"","payload":{"jsonrpc":"2.0","id":6,"result":\[0,{"values":…

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## [XML node options](https://discourse.nodered.org/t/xml-node-options/4682)

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**Author:** [@ziggemannen](https://discourse.nodered.org/u/ziggemannen)\
**Replies:** 0\
**Last updated:** [8 November 2018 13:04 UTC](https://discourse.nodered.org/t/xml-node-options/4682 "2018-11-08T13:04:34Z")

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Hi. New to the Node-RED and are exploring it using various channels. I have however stumbled on a simple task that I can't get grips on. I have a http POST sending an XML, that i convert to JS object using a XML node.…

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## [How to block a function in other Tabs](https://discourse.nodered.org/t/how-to-block-a-function-in-other-tabs/4678)

<div class="topic-metadata">

**Author:** [@BastianG](https://discourse.nodered.org/u/BastianG)\
**Replies:** 1\
**Last updated:** [8 November 2018 12:23 UTC](https://discourse.nodered.org/t/how-to-block-a-function-in-other-tabs/4678 "2018-11-08T12:23:28Z")

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Hi All. I currently have 3 Tab nodes on my Dashboard. I'm using some inputs from my RPI to trigger a ui control. BUT It should only work in 1 of the 3 Tab Nodes. Is there a "Tab Node" property/id which I can use in my…

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