# Latest

**URL:** https://discourse.nodered.org/latest.md?page=1148

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

**Page:** 1149

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## ["Numeric" as delay pin trigger](https://discourse.nodered.org/t/numeric-as-delay-pin-trigger/22395)

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**Author:** [@MasterOfPuppets](https://discourse.nodered.org/u/MasterOfPuppets)\
**Replies:** 12\
**Last updated:** [29 February 2020 13:25 UTC](https://discourse.nodered.org/t/numeric-as-delay-pin-trigger/22395 "2020-02-29T13:25:31Z")

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Hello Friends, i'm new here an the last days i worked on my dashboard. Node red is installed on a Raspberry Pi 3 and I want to build a onboard computer for my motorcycle with a self made chain oiler. The layout is read…

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## [Node-red-contrib-xiaomi-ble Cannot Connect](https://discourse.nodered.org/t/node-red-contrib-xiaomi-ble-cannot-connect/22403)

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**Author:** [@andrewa](https://discourse.nodered.org/u/andrewa)\
**Replies:** 1\
**Last updated:** [29 February 2020 08:37 UTC](https://discourse.nodered.org/t/node-red-contrib-xiaomi-ble-cannot-connect/22403 "2020-02-29T08:37:41Z")

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I have installed node-red-contrib-xiaomi-ble and from reading the documentation for noble, finally got it to run using the command: sudo setcap cap\_net\_raw+eip $(eval readlink -f \`which node\`) However, it now comes up …

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## [Integrating C++ classes](https://discourse.nodered.org/t/integrating-c-classes/22377)

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**Author:** [@guitarpicva](https://discourse.nodered.org/u/guitarpicva)\
**Replies:** 19\
**Last updated:** [28 February 2020 22:12 UTC](https://discourse.nodered.org/t/integrating-c-classes/22377 "2020-02-28T22:12:34Z")

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Where does one find the definitive guide on integrating back end C++ (or other language) classes in order to do complex business logic in the "background"? Best practices? Practical advice? I work primarily in C++ (Qt…

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## [Charts or ads side by side](https://discourse.nodered.org/t/charts-or-ads-side-by-side/22389)

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**Author:** [@knieshe1](https://discourse.nodered.org/u/knieshe1)\
**Replies:** 2\
**Last updated:** [28 February 2020 22:11 UTC](https://discourse.nodered.org/t/charts-or-ads-side-by-side/22389 "2020-02-28T22:11:47Z")

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Newbie !!! How can you display charts or ads side by side on the dashboard? Can someone help me

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## [Charts nebeneinander](https://discourse.nodered.org/t/charts-nebeneinander/22387)

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**Author:** [@knieshe1](https://discourse.nodered.org/u/knieshe1)\
**Replies:** 2\
**Last updated:** [28 February 2020 21:37 UTC](https://discourse.nodered.org/t/charts-nebeneinander/22387 "2020-02-28T21:37:47Z")

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Neuling!!! Wie kann man Charts oder Anzeigen nebeneinander im Dashboard anzeigen? Kann mir jemand (auf Deutsch) Hilfe geben.

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## [Uibuilder uibindex not working](https://discourse.nodered.org/t/uibuilder-uibindex-not-working/22116)

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**Author:** [@stanleyseow](https://discourse.nodered.org/u/stanleyseow)\
**Replies:** 31\
**Last updated:** [28 February 2020 16:58 UTC](https://discourse.nodered.org/t/uibuilder-uibindex-not-working/22116 "2020-02-28T16:58:23Z")

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I'm running uibuilder on ubuntu installed on a user account $home/.node-red/uibuilder When I tried to access uibindex via Show Detailed Information icon, I got this error msg Unauthorized May I know how do I trouble…

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## [Authentication using passport-jwt](https://discourse.nodered.org/t/authentication-using-passport-jwt/22345)

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**Author:** [@acoulson2000](https://discourse.nodered.org/u/acoulson2000)\
**Replies:** 4\
**Last updated:** [28 February 2020 15:55 UTC](https://discourse.nodered.org/t/authentication-using-passport-jwt/22345 "2020-02-28T15:55:46Z")

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I'm trying to setup authentication using the passport-jwt strategy, but am so far having now luck. I want to pass the JWT token as a query parameter for authentication I first tried using the passports fromUrlQueryParam…

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## [Node red browser interaction](https://discourse.nodered.org/t/node-red-browser-interaction/22376)

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**Author:** [@statecLata](https://discourse.nodered.org/u/statecLata)\
**Replies:** 8\
**Last updated:** [28 February 2020 15:49 UTC](https://discourse.nodered.org/t/node-red-browser-interaction/22376 "2020-02-28T15:49:37Z")

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Hello everybody, I'm pretty new to node-red so this may be a stupid question. I did search a lot though and found nothing. Currently I have node-red up and running on a raspberry pi and a bluetooth smart button linked …

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## [\[Solved\] How to realise auto-control and manual-control of the light?](https://discourse.nodered.org/t/solved-how-to-realise-auto-control-and-manual-control-of-the-light/22352)

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**Author:** [@molly](https://discourse.nodered.org/u/molly)\
**Replies:** 7\
**Last updated:** [28 February 2020 14:46 UTC](https://discourse.nodered.org/t/solved-how-to-realise-auto-control-and-manual-control-of-the-light/22352 "2020-02-28T14:46:46Z")

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Hi, I have a question about the IoT system by using MQTT nodes. I want to realize that people can choose to manually and automatically control the lights in the dashboard, like the flow in the figure below, but the prob…

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## [Nicht mehr als 2 Motoren einschalten](https://discourse.nodered.org/t/nicht-mehr-als-2-motoren-einschalten/22372)

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**Author:** [@rene.we5](https://discourse.nodered.org/u/rene.we5)\
**Replies:** 1\
**Last updated:** [28 February 2020 12:08 UTC](https://discourse.nodered.org/t/nicht-mehr-als-2-motoren-einschalten/22372 "2020-02-28T12:08:19Z")

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Hallo ich versuche ein Programm zu schreiben, indem es 4 Motoren gibt, aber es sollen sich maximal 2 gleichzeitig einschalten lassen. aber es wird IMMER "false" ausgegeben // Code in der Funktion var x0 = {payload: …

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## [Dashboard UI Label](https://discourse.nodered.org/t/dashboard-ui-label/22348)

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**Author:** [@Deon](https://discourse.nodered.org/u/Deon)\
**Replies:** 1\
**Last updated:** [28 February 2020 11:46 UTC](https://discourse.nodered.org/t/dashboard-ui-label/22348 "2020-02-28T11:46:16Z")

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Hi, I'm adding some UI widgets into a subflow of which I have multiple copies. I'd like to set the label for these widgets using environment variables, but I can't find a efficient and reliable method to achieve this. …

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## [1GB Raspberry pi 4 axed](https://discourse.nodered.org/t/1gb-raspberry-pi-4-axed/22318)

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**Author:** [@ghayne](https://discourse.nodered.org/u/ghayne)\
**Replies:** 19\
**Last updated:** [28 February 2020 11:28 UTC](https://discourse.nodered.org/t/1gb-raspberry-pi-4-axed/22318 "2020-02-28T11:28:09Z")

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Good news! The 1GB pi will not be on sale any more, the 2GB model will cost the same!

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## [Dashboard didn't start](https://discourse.nodered.org/t/dashboard-didnt-start/22141)

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**Author:** [@gbuurman](https://discourse.nodered.org/u/gbuurman)\
**Replies:** 12\
**Last updated:** [28 February 2020 10:38 UTC](https://discourse.nodered.org/t/dashboard-didnt-start/22141 "2020-02-28T10:38:22Z")

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Error: GET /ui and that is it I have installed all the packages needed for the dashboard. Any ideas? Macbook pro Node -v 12.6.0 Npm -v 6.9.0 Want to get some info from a external api and show the results in a ui

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## [Mustache on external js file](https://discourse.nodered.org/t/mustache-on-external-js-file/22327)

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**Author:** [@tukru](https://discourse.nodered.org/u/tukru)\
**Replies:** 7\
**Last updated:** [28 February 2020 10:33 UTC](https://discourse.nodered.org/t/mustache-on-external-js-file/22327 "2020-02-28T10:33:55Z")

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Hi all, So I am using Mustache for some stuff off the JS. In a script tag inside the HTML is working but if I use it with an external JS file it isn't. Is there any way to make it work with external JS file? Thanks!

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## [Is there any way to do dynamic configuration for mysql node in node-red?](https://discourse.nodered.org/t/is-there-any-way-to-do-dynamic-configuration-for-mysql-node-in-node-red/22354)

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**Author:** [@Jignesh](https://discourse.nodered.org/u/Jignesh)\
**Replies:** 2\
**Last updated:** [28 February 2020 10:20 UTC](https://discourse.nodered.org/t/is-there-any-way-to-do-dynamic-configuration-for-mysql-node-in-node-red/22354 "2020-02-28T10:20:40Z")

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I am using node-red-node-mysql node to connect with mySQL database. I want to set my database credential (i.e. server name, db name, uid and password) from global variables. Is there any way to do it?

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## [MQTT keeps running inside a function node](https://discourse.nodered.org/t/mqtt-keeps-running-inside-a-function-node/22320)

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**Author:** [@Guillermo](https://discourse.nodered.org/u/Guillermo)\
**Replies:** 8\
**Last updated:** [28 February 2020 10:14 UTC](https://discourse.nodered.org/t/mqtt-keeps-running-inside-a-function-node/22320 "2020-02-28T10:14:57Z")

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Hi all, I was trying to use the mqtt nodejs package inside a function node, so I implemented the "require" function as suggested in this comment in github: So my code is this one: require = global.get('require'); var…

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## [An Alternate Pop Up Dialog?](https://discourse.nodered.org/t/an-alternate-pop-up-dialog/19591)

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**Author:** [@KELVINHAN95](https://discourse.nodered.org/u/KELVINHAN95)\
**Replies:** 9\
**Last updated:** [28 February 2020 09:25 UTC](https://discourse.nodered.org/t/an-alternate-pop-up-dialog/19591 "2020-02-28T09:25:08Z")

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Hi, so far the only pop up i can see is the ok/cancel dialog. However I need something slightly different. Instead of an OK/Cancel pop up, i need one that allows the user to manually type the message on the pop up, …

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## [I am getting confused with the notifications](https://discourse.nodered.org/t/i-am-getting-confused-with-the-notifications/22324)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 3\
**Last updated:** [28 February 2020 09:13 UTC](https://discourse.nodered.org/t/i-am-getting-confused-with-the-notifications/22324 "2020-02-28T09:13:09Z")

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I really must be missing something. When I am looking at posts I no longer understand what is being shown to me. EG; Picture 1 - though I have looked at the thread, I didn't post in it. So why is there a notification …

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## [Cannot read Tim551 Laser data from node red tcp in node](https://discourse.nodered.org/t/cannot-read-tim551-laser-data-from-node-red-tcp-in-node/22355)

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**Author:** [@Jude.Robise](https://discourse.nodered.org/u/Jude.Robise)\
**Replies:** 5\
**Last updated:** [28 February 2020 08:15 UTC](https://discourse.nodered.org/t/cannot-read-tim551-laser-data-from-node-red-tcp-in-node/22355 "2020-02-28T08:15:44Z")

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Cannot read Tim551 Laser data from node red tcp in node. Flow is shown below. any help would be really appreciated! send command in function node: msg.payload = "\\02"+"sRN LMDscandata"+"\\03"; But nothing receives.

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## [Padding for Text on Button](https://discourse.nodered.org/t/padding-for-text-on-button/22288)

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**Author:** [@AmrDwarf](https://discourse.nodered.org/u/AmrDwarf)\
**Replies:** 9\
**Last updated:** [28 February 2020 07:16 UTC](https://discourse.nodered.org/t/padding-for-text-on-button/22288 "2020-02-28T07:16:18Z")

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Hi, I am googling like a mad-man trying to find how to change the inside padding on a button in the dashboard. I know you can do som magic with style sheets in a templete node, but I cannot find the right thing to chang…

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## [Use the node red values in Python](https://discourse.nodered.org/t/use-the-node-red-values-in-python/22086)

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**Author:** [@gragtoni435](https://discourse.nodered.org/u/gragtoni435)\
**Replies:** 34\
**Last updated:** [28 February 2020 04:52 UTC](https://discourse.nodered.org/t/use-the-node-red-values-in-python/22086 "2020-02-28T04:52:33Z")

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Hello, I can not find a solution how I can process the values from Node-Red in a Python script. Here, I get the X & Y coordinate from a Siemens CPU (317F) over a OPC UA Server to my Raspberry The coordinates are in …

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## [Downloading node palettes](https://discourse.nodered.org/t/downloading-node-palettes/22316)

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**Author:** [@NewNoob](https://discourse.nodered.org/u/NewNoob)\
**Replies:** 6\
**Last updated:** [28 February 2020 01:29 UTC](https://discourse.nodered.org/t/downloading-node-palettes/22316 "2020-02-28T01:29:37Z")

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Hi everyone, I am relatively new to Node-Red and Linux and am facing a roadblock Is there any way to install node modules onto a snap installed node-red in an Ubuntu Core 16 IPC? The IPC I am using only offers the term…

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## [Are there exist the align functionality on dropdown ui?](https://discourse.nodered.org/t/are-there-exist-the-align-functionality-on-dropdown-ui/22335)

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**Author:** [@XiaoBin](https://discourse.nodered.org/u/XiaoBin)\
**Replies:** 2\
**Last updated:** [27 February 2020 23:56 UTC](https://discourse.nodered.org/t/are-there-exist-the-align-functionality-on-dropdown-ui/22335 "2020-02-27T23:56:33Z")

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Hello I am making UI page using the dropdown ui node. But when I place the dropdown ui node on the page, it is the left align in default. I'd like to make it to the right align. Is it possible on the dropdown ui? Th…

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## [Connecting a RFID reader to Groov Epic](https://discourse.nodered.org/t/connecting-a-rfid-reader-to-groov-epic/22343)

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**Author:** [@Lili](https://discourse.nodered.org/u/Lili)\
**Replies:** 1\
**Last updated:** [27 February 2020 22:05 UTC](https://discourse.nodered.org/t/connecting-a-rfid-reader-to-groov-epic/22343 "2020-02-27T22:05:52Z")

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I am new to Node-RED, is there any sort of general node to connect a groov epic to a generic RFID reader? I found this collection : https://flows.nodered.org/collection/9RgOMM3J9oyX But I don't believe it fits my needs…

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## [Help with a Select Query Function](https://discourse.nodered.org/t/help-with-a-select-query-function/22341)

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**Author:** [@SamBozman](https://discourse.nodered.org/u/SamBozman)\
**Replies:** 12\
**Last updated:** [27 February 2020 21:56 UTC](https://discourse.nodered.org/t/help-with-a-select-query-function/22341 "2020-02-27T21:56:16Z")

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Hi, I need help formatting a query from a node-red function node to a sqlite database. I have already designed and verified my database and the query I am trying to use works properly within sqlite. The problem is I do n…

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## [Node-red-node-openweathermap 0.2.1 \> Insufficient Entropy / severity vulnerability](https://discourse.nodered.org/t/node-red-node-openweathermap-0-2-1-insufficient-entropy-severity-vulnerability/22333)

<div class="topic-metadata">

**Author:** [@RueCo](https://discourse.nodered.org/u/RueCo)\
**Replies:** 3\
**Last updated:** [27 February 2020 21:08 UTC](https://discourse.nodered.org/t/node-red-node-openweathermap-0-2-1-insufficient-entropy-severity-vulnerability/22333 "2020-02-27T21:08:25Z")

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After installing NR and the flow node-red-node-openweathermap 0.2.1 Node-RED Version: v1.0.3 Node.js Version: v12.16.1 Linux 4.19.79-v7+ arm LE we got an npm audit error message which we are not able to fix. What d…

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## [Dashboard crashing - EMFILE error](https://discourse.nodered.org/t/dashboard-crashing-emfile-error/22323)

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**Author:** [@kaless](https://discourse.nodered.org/u/kaless)\
**Replies:** 7\
**Last updated:** [27 February 2020 20:34 UTC](https://discourse.nodered.org/t/dashboard-crashing-emfile-error/22323 "2020-02-27T20:34:25Z")

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Hello, When I activate a loop (30 process of about 500 ms), that simulate a CAN network, I get the following error and my dashboard become inactive (connection lost): 27 Feb 12:38:06 - \[info\] \[exec:40bcec03.751834\] er…

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## [Regarding Dht11 sensor and Node-red interface](https://discourse.nodered.org/t/regarding-dht11-sensor-and-node-red-interface/22312)

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**Author:** [@Ramesh](https://discourse.nodered.org/u/Ramesh)\
**Replies:** 9\
**Last updated:** [27 February 2020 20:28 UTC](https://discourse.nodered.org/t/regarding-dht11-sensor-and-node-red-interface/22312 "2020-02-27T20:28:34Z")

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Heloo friends, im getting dht11 sensor readings on arduino serial monitor but not displaying on NODE-red GUI. please help me to solve this issue...

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## [Node-red-contrib-ui-level](https://discourse.nodered.org/t/node-red-contrib-ui-level/22334)

<div class="topic-metadata">

**Author:** [@olab](https://discourse.nodered.org/u/olab)\
**Replies:** 7\
**Last updated:** [27 February 2020 19:52 UTC](https://discourse.nodered.org/t/node-red-contrib-ui-level/22334 "2020-02-27T19:52:00Z")

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I have been struggerling with the node-red-contrib-ui-level for a while now and I can't se why this is not working properly. I use the latest release of both Node Red and node-red-contrib-ui-level. After deploying the …

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## [Extract labels & values from MQTT message](https://discourse.nodered.org/t/extract-labels-values-from-mqtt-message/22339)

<div class="topic-metadata">

**Author:** [@Paul-Reed](https://discourse.nodered.org/u/Paul-Reed)\
**Replies:** 2\
**Last updated:** [27 February 2020 19:40 UTC](https://discourse.nodered.org/t/extract-labels-values-from-mqtt-message/22339 "2020-02-27T19:40:16Z")

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On a cloud node-RED instance I receive a MQTT message of power data (in the influx line protocol format); grafana,device=diverter,type=energy grid=264,solar=0,divert=0,volts=242.71,accusage=0.7333333333333333,accsolar=0…

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