# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=28

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

**Page:** 29

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## [Dynamic broker connection - best practice](https://discourse.nodered.org/t/dynamic-broker-connection-best-practice/98759)

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**Author:** [@bakman2](https://discourse.nodered.org/u/bakman2)\
**Replies:** 1\
**Last updated:** [21 August 2025 08:42 UTC](https://discourse.nodered.org/t/dynamic-broker-connection-best-practice/98759 "2025-08-21T08:42:24Z")

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I want to efficiently connect and subscribe to a mqtt broker in 1 go. I have the following in a function node: const action = \["disconnect","connect","subscribe"\] const force = true const topic = "zigbee2mqtt/#" const …

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## [Issue SVG in dashboard 2.0](https://discourse.nodered.org/t/issue-svg-in-dashboard-2-0/98746)

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**Author:** [@Bao](https://discourse.nodered.org/u/Bao)\
**Replies:** 3\
**Last updated:** [20 August 2025 14:14 UTC](https://discourse.nodered.org/t/issue-svg-in-dashboard-2-0/98746 "2025-08-20T14:14:14Z")

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Hi Friend, I have an issue with SVG in dashboard 2.0. I can not select group. Pls help me solve this issue. Thank you

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## [Restarting node-red service in Bookworm OS](https://discourse.nodered.org/t/restarting-node-red-service-in-bookworm-os/98720)

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**Author:** [@Manikandan](https://discourse.nodered.org/u/Manikandan)\
**Replies:** 23\
**Last updated:** [20 August 2025 13:10 UTC](https://discourse.nodered.org/t/restarting-node-red-service-in-bookworm-os/98720 "2025-08-20T13:10:09Z")

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Hello Everyone, I recently upgraded my Revolution Pi from Stretch to Bookworm OS. In my Node-RED application, I used to restart the Node-RED service once a week using the sudo node-red-restart command in an Exec node. W…

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## [Issue on Rasperry pi 3 when use chart](https://discourse.nodered.org/t/issue-on-rasperry-pi-3-when-use-chart/98719)

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**Author:** [@Bao](https://discourse.nodered.org/u/Bao)\
**Replies:** 11\
**Last updated:** [20 August 2025 11:46 UTC](https://discourse.nodered.org/t/issue-on-rasperry-pi-3-when-use-chart/98719 "2025-08-20T11:46:23Z")

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Hi everyone So far, I use slider node and chart node on dashboard 2. when i use on my PC the chart is display information is good. However when i use these node on Rasperry Pi 3. the information did not display. I real…

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## [Boolean logic to value](https://discourse.nodered.org/t/boolean-logic-to-value/98726)

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**Author:** [@martijnspaan](https://discourse.nodered.org/u/martijnspaan)\
**Replies:** 1\
**Last updated:** [18 August 2025 21:39 UTC](https://discourse.nodered.org/t/boolean-logic-to-value/98726 "2025-08-18T21:39:17Z")

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Hi, I’m trying to do something incredibly simple, but I’m stuck in combining switch and boolean functions which overcomplicate things. Maybe somebody can point me in the right direction, this is what I try to accomplish…

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## [HA - How would I pass a random RGB value to light.turn\_on?](https://discourse.nodered.org/t/ha-how-would-i-pass-a-random-rgb-value-to-light-turn-on/98715)

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**Author:** [@Temmy](https://discourse.nodered.org/u/Temmy)\
**Replies:** 1\
**Last updated:** [18 August 2025 13:19 UTC](https://discourse.nodered.org/t/ha-how-would-i-pass-a-random-rgb-value-to-light-turn-on/98715 "2025-08-18T13:19:22Z")

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Hello folks, absolutely new to Node-RED (but not visual scripting / code) so appreciate any help you can provide to get me up to speed with things. I’m using the Node-RED add-on (v20.0.0) inside of HA. For my first flo…

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## [New user to Node-RED](https://discourse.nodered.org/t/new-user-to-node-red/98696)

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**Author:** [@mocallins](https://discourse.nodered.org/u/mocallins)\
**Replies:** 4\
**Last updated:** [18 August 2025 08:09 UTC](https://discourse.nodered.org/t/new-user-to-node-red/98696 "2025-08-18T08:09:38Z")

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Hello everybpdy , i hope this is as fun and great as it sounds

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## [Node-red-contrib-tuya-smart-device across VLANs](https://discourse.nodered.org/t/node-red-contrib-tuya-smart-device-across-vlans/98703)

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**Author:** [@Sirhc](https://discourse.nodered.org/u/Sirhc)\
**Replies:** 9\
**Last updated:** [17 August 2025 12:43 UTC](https://discourse.nodered.org/t/node-red-contrib-tuya-smart-device-across-vlans/98703 "2025-08-17T12:43:25Z")

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Hi All I have put all of my tuya devices on a separate VLAN. I can ping the devices from the nodered VLAN, but I get an error connecting to the devices on the other VLAN using Node-red-contrib-tuya-smart-device. Keep g…

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## [Issue with mp4frag node](https://discourse.nodered.org/t/issue-with-mp4frag-node/98692)

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**Author:** [@krambriw](https://discourse.nodered.org/u/krambriw)\
**Replies:** 5\
**Last updated:** [17 August 2025 06:50 UTC](https://discourse.nodered.org/t/issue-with-mp4frag-node/98692 "2025-08-17T06:50:33Z")

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Hello, I have been since long been using the great nodes developed & contributed by @kevinGodell In planning my next generation of video surveillance system with new net cameras, I started to setup a video server solut…

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## [Need help using HTTP Endpoint to serve a binary buffer](https://discourse.nodered.org/t/need-help-using-http-endpoint-to-serve-a-binary-buffer/98643)

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**Author:** [@no\_mpimpi](https://discourse.nodered.org/u/no_mpimpi)\
**Replies:** 4\
**Last updated:** [16 August 2025 11:47 UTC](https://discourse.nodered.org/t/need-help-using-http-endpoint-to-serve-a-binary-buffer/98643 "2025-08-16T11:47:24Z")

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Hello Fellow Noderoids, I initially asked this in Dashboard, but I’m not trying to make it work with Dashboard anymore, and I'm still failing at this. I am trying to pull audio out of a buffer using an HTTP endpoint, b…

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## [Node-Red Help OBIX connector](https://discourse.nodered.org/t/node-red-help-obix-connector/98641)

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**Author:** [@nick.494](https://discourse.nodered.org/u/nick.494)\
**Replies:** 1\
**Last updated:** [15 August 2025 18:38 UTC](https://discourse.nodered.org/t/node-red-help-obix-connector/98641 "2025-08-15T18:38:24Z")

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Hi All, I am new to node red and am currently trying to use it as a gateway connection from a MS SQL server to Niagara 4, With the purpose of writing data from the MS SQL to the Niagara 4 station. Currently I have succe…

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## [Alternative node for OPC UA Compact Server](https://discourse.nodered.org/t/alternative-node-for-opc-ua-compact-server/97528)

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**Author:** [@Manikandan](https://discourse.nodered.org/u/Manikandan)\
**Replies:** 17\
**Last updated:** [15 August 2025 11:48 UTC](https://discourse.nodered.org/t/alternative-node-for-opc-ua-compact-server/97528 "2025-08-15T11:48:33Z")

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Hi, I was using ' OPC UA Compact Server' in one of my Project, this project was handover two year ago. Recently i was trying update OS of the image and stared updating my node-red application to it's latest nodes and f…

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## [Multivalue mysql insert to mariadb](https://discourse.nodered.org/t/multivalue-mysql-insert-to-mariadb/98661)

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**Author:** [@gmc\_5303](https://discourse.nodered.org/u/gmc_5303)\
**Replies:** 7\
**Last updated:** [14 August 2025 18:44 UTC](https://discourse.nodered.org/t/multivalue-mysql-insert-to-mariadb/98661 "2025-08-14T18:44:56Z")

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Hello, first time poster here! I’ve been working to replace some older python scripts that export data from MSSQL and import it into MariaDB. I can successfully do this with nodered function by creating separate insert s…

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## [Reconnect to a uibuilder instance if node red is deployed](https://discourse.nodered.org/t/reconnect-to-a-uibuilder-instance-if-node-red-is-deployed/98588)

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**Author:** [@magicman](https://discourse.nodered.org/u/magicman)\
**Replies:** 3\
**Last updated:** [14 August 2025 14:27 UTC](https://discourse.nodered.org/t/reconnect-to-a-uibuilder-instance-if-node-red-is-deployed/98588 "2025-08-14T14:27:35Z")

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i am looking to reconnect to an open uibuilder instance automatically when a node red full deploy has taken place, is this possible? At present i have to refresh the instance for this to happen. Any help would be apprec…

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## [Using AI tools (Cursor, Claude Code etc) for Node-RED development & testing – experiences?](https://discourse.nodered.org/t/using-ai-tools-cursor-claude-code-etc-for-node-red-development-testing-experiences/98663)

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**Author:** [@flipzz](https://discourse.nodered.org/u/flipzz)\
**Replies:** 1\
**Last updated:** [14 August 2025 13:58 UTC](https://discourse.nodered.org/t/using-ai-tools-cursor-claude-code-etc-for-node-red-development-testing-experiences/98663 "2025-08-14T13:58:22Z")

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Hi all, We run Node-RED in a multi-instance setup with: We manage everything with Git directly in the Node-RED user folder (we don’t use the Node-RED’s project feature). Flows and custom nodes are in GitHub (sourc…

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## [Working with TP-Link cameras and IFTTT](https://discourse.nodered.org/t/working-with-tp-link-cameras-and-ifttt/98618)

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**Author:** [@CrazyAngle](https://discourse.nodered.org/u/CrazyAngle)\
**Replies:** 7\
**Last updated:** [14 August 2025 07:38 UTC](https://discourse.nodered.org/t/working-with-tp-link-cameras-and-ifttt/98618 "2025-08-14T07:38:31Z")

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I’m using NR v4.05 at the moment on a Linux system. I have my smart lights all working perfectly and have several routines. The problem I’m having, however, is with the KASA / TP-Link cameras. The basic flow is if I’m ho…

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## [I cant see how to node-ify my function?](https://discourse.nodered.org/t/i-cant-see-how-to-node-ify-my-function/98638)

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**Author:** [@larkingabout](https://discourse.nodered.org/u/larkingabout)\
**Replies:** 22\
**Last updated:** [13 August 2025 10:55 UTC](https://discourse.nodered.org/t/i-cant-see-how-to-node-ify-my-function/98638 "2025-08-13T10:55:14Z")

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I cant seem to see how to accomplish with nodes what i can do with a simple function? Perhaps i made a bad design decision taking advantage of the context storage to maintain a list of sensors that get updated vie ble/m…

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## [Switch node for multiple criteria](https://discourse.nodered.org/t/switch-node-for-multiple-criteria/98632)

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**Author:** [@MeSteve](https://discourse.nodered.org/u/MeSteve)\
**Replies:** 2\
**Last updated:** [13 August 2025 01:08 UTC](https://discourse.nodered.org/t/switch-node-for-multiple-criteria/98632 "2025-08-13T01:08:12Z")

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For what ever reason, I cannot wrap my head around the logic on NodeRed… I am trying to combine a battery state of charge value and a time since last fully charged value and decide if the last full charge was X number o…

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## [Getting Null instead of data in sqlight database](https://discourse.nodered.org/t/getting-null-instead-of-data-in-sqlight-database/98608)

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**Author:** [@Eric1](https://discourse.nodered.org/u/Eric1)\
**Replies:** 3\
**Last updated:** [12 August 2025 13:55 UTC](https://discourse.nodered.org/t/getting-null-instead-of-data-in-sqlight-database/98608 "2025-08-12T13:55:10Z")

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Hi, hope this is an easy question, I am trying to add data to a spreadsheet and I get null in the spreadsheet if I try and use my variable but if I input a number it works correctly. If I do the function like this it in…

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## [Mariadb and SQL generated by Gemini](https://discourse.nodered.org/t/mariadb-and-sql-generated-by-gemini/98601)

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**Author:** [@jbudd](https://discourse.nodered.org/u/jbudd)\
**Replies:** 17\
**Last updated:** [12 August 2025 11:34 UTC](https://discourse.nodered.org/t/mariadb-and-sql-generated-by-gemini/98601 "2025-08-12T11:34:07Z")

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I run Mariadb on a Raspberry Pi mysql -V shows the version to be 10.11.11-MariaDB. Node-red has node-red-node-mysql v 2.0.0. There is a table socketevent containing socketid (primary key), and ontime (datetime). Gemi…

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## [Node-red-contrib-opcua: what is the best alternative?](https://discourse.nodered.org/t/node-red-contrib-opcua-what-is-the-best-alternative/97796)

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**Author:** [@rromele](https://discourse.nodered.org/u/rromele)\
**Replies:** 3\
**Last updated:** [12 August 2025 06:38 UTC](https://discourse.nodered.org/t/node-red-contrib-opcua-what-is-the-best-alternative/97796 "2025-08-12T06:38:52Z")

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Hi, I am using node node-red-contrib-opcua V.0.2.340. At the startup of node-red there is a warning: "node-opcua-client-crawler module has been deprecated....". What could be a functioning alternative node/influx? The…

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## [Flow with RS flip-flop](https://discourse.nodered.org/t/flow-with-rs-flip-flop/97565)

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**Author:** [@rzajac03](https://discourse.nodered.org/u/rzajac03)\
**Replies:** 9\
**Last updated:** [11 August 2025 20:23 UTC](https://discourse.nodered.org/t/flow-with-rs-flip-flop/97565 "2025-08-11T20:23:38Z")

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How to realize flow with really working RS flip-flow? I've tested redPLC SR flip-flop but I don't know how to set .S and .R inputs and how to read .Q output.

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## [Clicking outside the editor no longer works](https://discourse.nodered.org/t/clicking-outside-the-editor-no-longer-works/97858)

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**Author:** [@Frida](https://discourse.nodered.org/u/Frida)\
**Replies:** 22\
**Last updated:** [11 August 2025 14:30 UTC](https://discourse.nodered.org/t/clicking-outside-the-editor-no-longer-works/97858 "2025-08-11T14:30:32Z")

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In node-red@latest, I can no longer close the editor when I click outside the editor, now I have to click either cancel or done. Can it be made to work again?

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## [Failing to install "node-red-contrib-ads1x15\_i2c"](https://discourse.nodered.org/t/failing-to-install-node-red-contrib-ads1x15-i2c/98595)

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**Author:** [@IDirkI](https://discourse.nodered.org/u/IDirkI)\
**Replies:** 1\
**Last updated:** [11 August 2025 05:24 UTC](https://discourse.nodered.org/t/failing-to-install-node-red-contrib-ads1x15-i2c/98595 "2025-08-11T05:24:54Z")

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Hello, I am trying to access an ADC on a flight controller that will go on top of a Raspberry Pi4B. The ADC model is an ADS1115 so I wanted to use the node to access its outputs. I cannot get it to work normally though. …

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## [Node red crashes after ~1h "heap out of memory"](https://discourse.nodered.org/t/node-red-crashes-after-1h-heap-out-of-memory/98274)

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**Author:** [@Desmond-Zeh](https://discourse.nodered.org/u/Desmond-Zeh)\
**Replies:** 33\
**Last updated:** [10 August 2025 11:10 UTC](https://discourse.nodered.org/t/node-red-crashes-after-1h-heap-out-of-memory/98274 "2025-08-10T11:10:42Z")

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Hello team! My node red clashes after few hours of use. Here below is an image of the message display anytime it clashes. . Any idea on what could be the cause of this failure, please…. Thanks in advance

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## [\[SOLVED\] Double-click on node\> all text in edit dialog is selected?](https://discourse.nodered.org/t/solved-double-click-on-node-all-text-in-edit-dialog-is-selected/98584)

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**Author:** [@wwjd1924](https://discourse.nodered.org/u/wwjd1924)\
**Replies:** 1\
**Last updated:** [9 August 2025 15:05 UTC](https://discourse.nodered.org/t/solved-double-click-on-node-all-text-in-edit-dialog-is-selected/98584 "2025-08-09T15:05:08Z")

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I have an annoying issue: clicking on a node, the edit window does open and ALL text in that window is selected. this happens on both grouped and non-grouped nodes latest version LINUX Brave AND Chrome browsers. Node-R…

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## [Kaitai - anyone heard of it?](https://discourse.nodered.org/t/kaitai-anyone-heard-of-it/98578)

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**Author:** [@gregorius](https://discourse.nodered.org/u/gregorius)\
**Replies:** 5\
**Last updated:** [9 August 2025 10:47 UTC](https://discourse.nodered.org/t/kaitai-anyone-heard-of-it/98578 "2025-08-09T10:47:13Z")

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Hi There, This .ksy file can be compiled into gif.cpp / Gif.cs / gif.go / Gif.java / Gif.js / gif.lua / gif.nim / Gif.pm / Gif.php / gif.py / gif.rb and then one can instantly load a .gif file and access, for example…

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## [UIBuilder Sender Node no Response](https://discourse.nodered.org/t/uibuilder-sender-node-no-response/98553)

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**Author:** [@Robert0](https://discourse.nodered.org/u/Robert0)\
**Replies:** 10\
**Last updated:** [8 August 2025 19:31 UTC](https://discourse.nodered.org/t/uibuilder-sender-node-no-response/98553 "2025-08-08T19:31:00Z")

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I am trying to get a response from the UIBuilder instance, after using a injection node to a sender node to a debug node. I have set the originator in the response message but I am not getting the hang of it. Receiving …

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## [DB2: Pie/Donut Chart legend/segment outlines](https://discourse.nodered.org/t/db2-pie-donut-chart-legend-segment-outlines/98575)

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**Author:** [@rakgupta](https://discourse.nodered.org/u/rakgupta)\
**Replies:** 0\
**Last updated:** [8 August 2025 14:31 UTC](https://discourse.nodered.org/t/db2-pie-donut-chart-legend-segment-outlines/98575 "2025-08-08T14:31:03Z")

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Is there a way to get rid of the white outlines of the chart and around the legend? I’m using a black background and the outline(s) actually make the chart segments smaller and more difficult to see. The gauge doesn’…

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## [FlowFuse is Hiring](https://discourse.nodered.org/t/flowfuse-is-hiring/98574)

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**Author:** [@sumitshinde-84](https://discourse.nodered.org/u/sumitshinde-84)\
**Replies:** 0\
**Last updated:** [8 August 2025 10:56 UTC](https://discourse.nodered.org/t/flowfuse-is-hiring/98574 "2025-08-08T10:56:49Z")

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Hey folks! :waving\_hand: FlowFuse is hiring a Developer Relations Advocate to join our team. In this role, you’ll help developers get the most out of our tools, create engaging technical content, speak at events, and a…

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