# Top **URL:** https://discourse.nodered.org/top.md?page=17 [Latest](https://discourse.nodered.org/latest.md) · [Categories](https://discourse.nodered.org/categories.md) · [Tags](https://discourse.nodered.org/tags.md) **Page:** 18 --- ## [Override Dashboard 2 favicon](https://discourse.nodered.org/t/override-dashboard-2-favicon/101540)
**Author:** [@jbudd](https://discourse.nodered.org/u/jbudd)\ **Replies:** 2\ **Last updated:** [28 July 2026 20:18 UTC](https://discourse.nodered.org/t/override-dashboard-2-favicon/101540 "2026-07-28T20:18:33Z")
In Firefox I can use a ui-template to override the dashboard favicon, giving me a visual indication of which Node-red machine I am viewing (In this case glasspi): However, this technique does not work on Brave or o… --- ## [Advice for Modbus?](https://discourse.nodered.org/t/advice-for-modbus/100381)
**Author:** [@Janvi](https://discourse.nodered.org/u/Janvi)\ **Replies:** 2\ **Last updated:** [19 February 2026 11:46 UTC](https://discourse.nodered.org/t/advice-for-modbus/100381 "2026-02-19T11:46:48Z")
Up on now, my script is using the node-red-contrib-modbus and node-red-contrib-buffer-parser to access several Modbus-TCP solar devices with and without SunSpec. The script runs fine and stable for month with my dashb… --- ## [How to rate limit messages](https://discourse.nodered.org/t/how-to-rate-limit-messages/101473)
**Author:** [@NodyRed](https://discourse.nodered.org/u/NodyRed)\ **Replies:** 3\ **Last updated:** [14 July 2026 18:12 UTC](https://discourse.nodered.org/t/how-to-rate-limit-messages/101473 "2026-07-14T18:12:57Z")
With the delay node I can set it to rate limit messages, but the behavior is different from what I expect. Setting: 60msg/h, this means 1 msg/min, delete intermediate messages If I have a message and another message 2 … --- ## [Need help with Wordcloud template node in dashboard-2](https://discourse.nodered.org/t/need-help-with-wordcloud-template-node-in-dashboard-2/100283)
**Author:** [@thebaldgeek](https://discourse.nodered.org/u/thebaldgeek)\ **Replies:** 4\ **Last updated:** [31 January 2026 01:52 UTC](https://discourse.nodered.org/t/need-help-with-wordcloud-template-node-in-dashboard-2/100283 "2026-01-31T01:52:42Z")
I have this example code working in dashboard-1.... (Big thanks to @Steve-Mcl for the clear working example). I've tried wrapping the code in \ tags as per the example in the template node from Dash-2, but no… --- ## [contrib-easybotics-vl53l0x](https://discourse.nodered.org/t/contrib-easybotics-vl53l0x/100097)
**Author:** [@Roman2809](https://discourse.nodered.org/u/Roman2809)\ **Replies:** 6\ **Last updated:** [6 January 2026 16:53 UTC](https://discourse.nodered.org/t/contrib-easybotics-vl53l0x/100097 "2026-01-06T16:53:53Z")
Hello, I'm using several VL53L0X sensors. They are switched individually via the XShut without any problems. I start the node with an injection interval (pollstart), but I need to switch the node back to pollstop when… --- ## [Dashboard 2.0 ui-chart, prevent line color changes for certain data](https://discourse.nodered.org/t/dashboard-2-0-ui-chart-prevent-line-color-changes-for-certain-data/100214)
**Author:** [@Sergii](https://discourse.nodered.org/u/Sergii)\ **Replies:** 3\ **Last updated:** [22 January 2026 08:14 UTC](https://discourse.nodered.org/t/dashboard-2-0-ui-chart-prevent-line-color-changes-for-certain-data/100214 "2026-01-22T08:14:56Z")
I have some data. For example, it's the temperatures of cold and hot water. I wanted to plot a temperature graph with two lines. Cold temperature water - blue line. Hot water - red line. I did it this way: \[{"id":"602a… --- ## [Node-red-contrib-buffer-parser - the output keep being an array](https://discourse.nodered.org/t/node-red-contrib-buffer-parser-the-output-keep-being-an-array/100129)
**Author:** [@michaell](https://discourse.nodered.org/u/michaell)\ **Replies:** 4\ **Last updated:** [9 January 2026 15:36 UTC](https://discourse.nodered.org/t/node-red-contrib-buffer-parser-the-output-keep-being-an-array/100129 "2026-01-09T15:36:26Z")
hello I need to combine the 2 first bytes of the array to create an integer. My output keep being a array. Are you able to see what did I do wrong? --- ## [Using Node-RED with any AI? any application examples?](https://discourse.nodered.org/t/using-node-red-with-any-ai-any-application-examples/100260)
**Author:** [@Elindo586](https://discourse.nodered.org/u/Elindo586)\ **Replies:** 1\ **Last updated:** [27 January 2026 21:38 UTC](https://discourse.nodered.org/t/using-node-red-with-any-ai-any-application-examples/100260 "2026-01-27T21:38:52Z")
So Node-RED is a good monitoring tool for industrial machine applications... I am not sure if I ever want to give the ability of a machine operator to start a machine remotely.. but.. that is a different related topic.. … --- ## [$split doesn't support default settings?](https://discourse.nodered.org/t/split-doesnt-support-default-settings/101002)
**Author:** [@gregorius](https://discourse.nodered.org/u/gregorius)\ **Replies:** 4\ **Last updated:** [13 May 2026 16:10 UTC](https://discourse.nodered.org/t/split-doesnt-support-default-settings/101002 "2026-05-13T16:10:21Z")
Hi There, This might be a known unknown since I'm using NR 4.0.9 - so it might be fixed already. Or maybe it's not a bug? In which case what am I doing wrong! It concerns JSONata $split: The description gives me t… --- ## [HTTP request fails depending on message origin?](https://discourse.nodered.org/t/http-request-fails-depending-on-message-origin/100446)
**Author:** [@dth](https://discourse.nodered.org/u/dth)\ **Replies:** 4\ **Last updated:** [3 March 2026 07:44 UTC](https://discourse.nodered.org/t/http-request-fails-depending-on-message-origin/100446 "2026-03-03T07:44:58Z")
I have a flow that sends events to ntfy.sh. I have a certain type of event that fails most of the time with "no response from server". Using wireshark I have confirmed that the TCP connection is established, but no requ… --- ## [Linter: \[msg\] 'Buffer' is not defined](https://discourse.nodered.org/t/linter-msg-buffer-is-not-defined/101810)
**Author:** [@protonmw](https://discourse.nodered.org/u/protonmw)\ **Replies:** 3\ **Last updated:** [21 September 2026 15:55 UTC](https://discourse.nodered.org/t/linter-msg-buffer-is-not-defined/101810 "2026-09-21T15:55:29Z")
Hi experts! I'm using Buffer.from(xyz); in a function node and it works exactly as intended, but linter gives an error: \[msg\] 'Buffer' is not defined. How can I prevent this? (Or: how to put ascii character 182 int… --- ## [Help switching bytes from buffer](https://discourse.nodered.org/t/help-switching-bytes-from-buffer/100672)
**Author:** [@omega\_elite](https://discourse.nodered.org/u/omega_elite)\ **Replies:** 4\ **Last updated:** [28 March 2026 21:37 UTC](https://discourse.nodered.org/t/help-switching-bytes-from-buffer/100672 "2026-03-28T21:37:24Z")
Hi I am looking for help to switch the 7 bytes in this buffer out of a switch node \[ { "id": "0873afcd15cbc239", "type": "tab", "label": "Flow 1", "disabled": false, "info"… --- ## [Display tooltip as label on switch node](https://discourse.nodered.org/t/display-tooltip-as-label-on-switch-node/100072)
**Author:** [@zfox](https://discourse.nodered.org/u/zfox)\ **Replies:** 4\ **Last updated:** [3 January 2026 06:24 UTC](https://discourse.nodered.org/t/display-tooltip-as-label-on-switch-node/100072 "2026-01-03T06:24:51Z")
I want to show the tooltips/output names/conditons on the switch node as a label. Visual example: How can this be achieved in the GUI Editor? --- ## [Q: RE: node-red-contrib-play-audio \>\> voices](https://discourse.nodered.org/t/q-re-node-red-contrib-play-audio-voices/102054)
**Author:** [@StrongTown](https://discourse.nodered.org/u/StrongTown)\ **Replies:** 8\ **Last updated:** [6 November 2026 21:01 UTC](https://discourse.nodered.org/t/q-re-node-red-contrib-play-audio-voices/102054 "2026-11-06T21:01:59Z")
I decided it was time to update my rpi4 (rev B) Home Controller from Bookworm to Debian Trixie (13). For full disclosure I read it is a challenge to upgrade Bookworm to Trixie, best to start from scratch, so I did on a s… --- ## [UIBUILDER asyncSend and ESM use](https://discourse.nodered.org/t/uibuilder-asyncsend-and-esm-use/100852)
**Author:** [@Buckskin](https://discourse.nodered.org/u/Buckskin)\ **Replies:** 5\ **Last updated:** [26 April 2026 22:29 UTC](https://discourse.nodered.org/t/uibuilder-asyncsend-and-esm-use/100852 "2026-04-26T22:29:32Z")
To change the subject back to uibuilder :rofl: I am trying to use asyncSend() - just because - but I am obviously not doing it right because although the send part works OK I am not getting a response (well I do but not… --- ## [Custom autheitication. sharing data with variable in settings.json](https://discourse.nodered.org/t/custom-autheitication-sharing-data-with-variable-in-settings-json/101700)
**Author:** [@svefro](https://discourse.nodered.org/u/svefro)\ **Replies:** 3\ **Last updated:** [1 September 2026 07:56 UTC](https://discourse.nodered.org/t/custom-autheitication-sharing-data-with-variable-in-settings-json/101700 "2026-09-01T07:56:10Z")
I have made a custom authentication middleware in settings.js that handles session and users for all my http nodes. Currently i store data in a global in settings.js global\['my\_auth\_data'\] this is loaded on each reques… --- ## [How do I find this node?](https://discourse.nodered.org/t/how-do-i-find-this-node/101192)
**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\ **Replies:** 3\ **Last updated:** [5 June 2026 12:06 UTC](https://discourse.nodered.org/t/how-do-i-find-this-node/101192 "2026-06-05T12:06:47Z")
Mia culpa - again. I seem to have taken an MQTT node from one machine to another. Which is annoying. So how do I find it? --- ## [Different types in one chart](https://discourse.nodered.org/t/different-types-in-one-chart/100746)
**Author:** [@nygma2004](https://discourse.nodered.org/u/nygma2004)\ **Replies:** 3\ **Last updated:** [11 April 2026 13:44 UTC](https://discourse.nodered.org/t/different-types-in-one-chart/100746 "2026-04-11T13:44:13Z")
I wanted to create a chart which has both a bar and a line series. I got it working, with Gemini's help: But since I am a boomer I don't immediately trust AI and wanted to ask the experts here. So there is a very go… --- ## [Status Node Issues After Upgrading to NRv5](https://discourse.nodered.org/t/status-node-issues-after-upgrading-to-nrv5/101736)
**Author:** [@dudleyjosh](https://discourse.nodered.org/u/dudleyjosh)\ **Replies:** 2\ **Last updated:** [8 September 2026 18:16 UTC](https://discourse.nodered.org/t/status-node-issues-after-upgrading-to-nrv5/101736 "2026-09-08T18:16:52Z")
This flow hasn't changed in the last 18 months or so, and it was rock-solid until upgrading to Node-RED v5 (all of the dot revisions so far up to 5.0.6). The Status node is just meant to monitor the TCP node named "E… --- ## [Auto start Node-RED on Raspberry Pi at boot](https://discourse.nodered.org/t/auto-start-node-red-on-raspberry-pi-at-boot/100684)
**Author:** [@karlgotbread](https://discourse.nodered.org/u/karlgotbread)\ **Replies:** 2\ **Last updated:** [30 March 2026 07:41 UTC](https://discourse.nodered.org/t/auto-start-node-red-on-raspberry-pi-at-boot/100684 "2026-03-30T07:41:10Z")
Hello everyone, I’m looking for the most reliable and efficient way to automatically start Node-RED when my Raspberry Pi boots. Currently, I have to run node-red-start manually after each restart, and I would like to a… --- ## [How do I set the background color in the DB2 template using msg.payload?](https://discourse.nodered.org/t/how-do-i-set-the-background-color-in-the-db2-template-using-msg-payload/101359)
**Author:** [@Hubertus](https://discourse.nodered.org/u/Hubertus)\ **Replies:** 3\ **Last updated:** [26 June 2026 10:27 UTC](https://discourse.nodered.org/t/how-do-i-set-the-background-color-in-the-db2-template-using-msg-payload/101359 "2026-06-26T10:27:15Z")
Hello, I'm at my wits' end. I want to dynamically set a color in hex format (e.g., ‘#167099’) as the background color of a template. I've tried all the available examples—without success. \
**Author:** [@ThingsTinkerer](https://discourse.nodered.org/u/ThingsTinkerer)\ **Replies:** 3\ **Last updated:** [24 February 2026 17:02 UTC](https://discourse.nodered.org/t/template-strings-in-subflow-args/100445 "2026-02-24T17:02:57Z")
Learned the hard way I need to environmentalize url in node red today. I have a lot of http subflows which take URL string arg. Is it possible to mix in env vars here? For example ${MY\_URL}/api/auth/login. This is a piec… --- ## [Fanuc plc opc-ua](https://discourse.nodered.org/t/fanuc-plc-opc-ua/101628)
**Author:** [@AlastairLong](https://discourse.nodered.org/u/AlastairLong)\ **Replies:** 2\ **Last updated:** [18 August 2026 10:30 UTC](https://discourse.nodered.org/t/fanuc-plc-opc-ua/101628 "2026-08-18T10:30:37Z")
I am getting a new machine which is controlled by FANUC PLC. The supplier has also said that the can setup OPC-UA communication so that we can get data from the machine. I have never used OPC-UA before, but from lookin… --- ## [UIBuilder markweb permissions issue running as dedicated user](https://discourse.nodered.org/t/uibuilder-markweb-permissions-issue-running-as-dedicated-user/101323)
**Author:** [@Colin](https://discourse.nodered.org/u/Colin)\ **Replies:** 4\ **Last updated:** [20 June 2026 10:29 UTC](https://discourse.nodered.org/t/uibuilder-markweb-permissions-issue-running-as-dedicated-user/101323 "2026-06-20T10:29:31Z")
On Ubuntu I have created a system user noderedblog and group noderedblog to run node-red. The user does not have a home directory. Node red is running from a folder /home/colinl/noderedblog. Ownership of that folder and … --- ## [Help getting kwh with node-red](https://discourse.nodered.org/t/help-getting-kwh-with-node-red/100752)
**Author:** [@fogmajor](https://discourse.nodered.org/u/fogmajor)\ **Replies:** 3\ **Last updated:** [12 April 2026 10:53 UTC](https://discourse.nodered.org/t/help-getting-kwh-with-node-red/100752 "2026-04-12T10:53:22Z")
Hi I have a shelly wave uk plug that i can control using the zwavejs-device and it works fine. I am struggling to find a way off getting the kwh usage. Any help will be greatly appreciated. Thank you in advance Andr… --- ## [Watch node doesn't work when file was modified on NFS volume](https://discourse.nodered.org/t/watch-node-doesnt-work-when-file-was-modified-on-nfs-volume/101483)
**Author:** [@sidisl16](https://discourse.nodered.org/u/sidisl16)\ **Replies:** 2\ **Last updated:** [20 July 2026 15:50 UTC](https://discourse.nodered.org/t/watch-node-doesnt-work-when-file-was-modified-on-nfs-volume/101483 "2026-07-20T15:50:55Z")
I have hosted Node red in Oracle's OCI container instance, where I have mounted FSS volume(NFS V3), the same volume has been mounted on the OCI VM, when we create edit or delete any file in the mounted path from VM, the … --- ## [Dashboard 2.0 ui-spacer size](https://discourse.nodered.org/t/dashboard-2-0-ui-spacer-size/99876)
**Author:** [@Chris378](https://discourse.nodered.org/u/Chris378)\ **Replies:** 2\ **Last updated:** [6 December 2025 12:16 UTC](https://discourse.nodered.org/t/dashboard-2-0-ui-spacer-size/99876 "2025-12-06T12:16:19Z")
Dear Community Im using Dashboard 2.0 and as it seems, its not possible to set the size of the spacer, its always 1x1. Is this correct or do I have a problem anywhere? If this is correct, what is the sense behind a spac… --- ## [How do you handle disappearing messages? Or do you? Dead letter queue](https://discourse.nodered.org/t/how-do-you-handle-disappearing-messages-or-do-you-dead-letter-queue/100686)
**Author:** [@ThingsTinkerer](https://discourse.nodered.org/u/ThingsTinkerer)\ **Replies:** 3\ **Last updated:** [30 March 2026 15:23 UTC](https://discourse.nodered.org/t/how-do-you-handle-disappearing-messages-or-do-you-dead-letter-queue/100686 "2026-03-30T15:23:23Z")
Found an interesting article: And turns out this is exactly the problem I faced in so many I/O places (read/write, doesn't matter where from or to, http, mqtt, modbus, mbus, bacnet ++). It describes it elegantly and di… --- ## [Another set of eyes on this "routine" please](https://discourse.nodered.org/t/another-set-of-eyes-on-this-routine-please/100063)
**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\ **Replies:** 2\ **Last updated:** [1 January 2026 08:37 UTC](https://discourse.nodered.org/t/another-set-of-eyes-on-this-routine-please/100063 "2026-01-01T08:37:34Z")
No foreign nodes. Scope: I have a NAS (that is not always on). When it is, I want to backup (via rsync to the NAS. Not repeatedly. Maybe just once per it being turned on. (The NAS) Walkthrough of the code seen: hea… --- ## [Updating Node.js & Node-Red Help](https://discourse.nodered.org/t/updating-node-js-node-red-help/100773)
**Author:** [@acestu](https://discourse.nodered.org/u/acestu)\ **Replies:** 4\ **Last updated:** [16 April 2026 08:26 UTC](https://discourse.nodered.org/t/updating-node-js-node-red-help/100773 "2026-04-16T08:26:27Z")
Hi, I am currently using Node.js ver 18.20.8 and node-red ver 4.1.8 , when I run the update script it exits and tells me that node-red no longer support node.js 18.xx , it then tells me that I can force the installation… --- ## [Can gauges be targeted by msg.topic?](https://discourse.nodered.org/t/can-gauges-be-targeted-by-msg-topic/100639)
**Author:** [@locastan](https://discourse.nodered.org/u/locastan)\ **Replies:** 4\ **Last updated:** [24 March 2026 11:18 UTC](https://discourse.nodered.org/t/can-gauges-be-targeted-by-msg-topic/100639 "2026-03-24T11:18:25Z")
Hi, I am trying to target a specific gauge (flowfuse dashboard) out of many simply by having msg.topic match the gauge nodes defined name, but it seems to be problematic. Instead of one specific gauge, all of them chang… --- ## [(Doing preliminary research) Network capable AVR amplifiers](https://discourse.nodered.org/t/doing-preliminary-research-network-capable-avr-amplifiers/100185)
**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\ **Replies:** 4\ **Last updated:** [18 January 2026 11:07 UTC](https://discourse.nodered.org/t/doing-preliminary-research-network-capable-avr-amplifiers/100185 "2026-01-18T11:07:59Z")
As is, I have an "old" amp. It has HDMI-CEC, but that doesn't quite cut it for all needs. So I am looking at getting an AMP with a network port too. Then I should be able to control it - I hope. eg: Yamaha RX-V6A D… --- ## [BLE data into a MySQL DB](https://discourse.nodered.org/t/ble-data-into-a-mysql-db/101720)
**Author:** [@GerB](https://discourse.nodered.org/u/GerB)\ **Replies:** 3\ **Last updated:** [3 September 2026 17:20 UTC](https://discourse.nodered.org/t/ble-data-into-a-mysql-db/101720 "2026-09-03T17:20:35Z")
Dear reader, I am just beginning with Node-red (5.0.4, npm 11.15.0) and have some trouble with the following. All the BLE messages I can receive with the BLE Scanner result in a lot of info and I would like to make it mo… --- ## [Jsonata in combination with the buffer maker of node-red-contrib-buffer-parser](https://discourse.nodered.org/t/jsonata-in-combination-with-the-buffer-maker-of-node-red-contrib-buffer-parser/100576)
**Author:** [@gregorius](https://discourse.nodered.org/u/gregorius)\ **Replies:** 3\ **Last updated:** [16 March 2026 16:10 UTC](https://discourse.nodered.org/t/jsonata-in-combination-with-the-buffer-maker-of-node-red-contrib-buffer-parser/100576 "2026-03-16T16:10:45Z")
Hi There, This might be a question for @Steve-Mcl but perhaps someone else has an idea. I'm using the buffer maker to create a buffer array from a string value, the format is basically: \\ **Author:** [@Suso](https://discourse.nodered.org/u/Suso)\ **Replies:** 3\ **Last updated:** [4 January 2026 23:54 UTC](https://discourse.nodered.org/t/why-is-my-function-text-looking-like-this/100085 "2026-01-04T23:54:11Z") Hi. I don´t know what happened but when i try to edit my functions the indent of the text is weird. I am using the last version of node-red in windows 11, i tried in 2 different pcs an with chrome, firefox and brave… --- ## [Project Nodes vs. MQTT](https://discourse.nodered.org/t/project-nodes-vs-mqtt/101698)
**Author:** [@kenm](https://discourse.nodered.org/u/kenm)\ **Replies:** 2\ **Last updated:** [28 August 2026 21:23 UTC](https://discourse.nodered.org/t/project-nodes-vs-mqtt/101698 "2026-08-28T21:23:09Z")
Currently testing a proof-of-concept with FlowFuse Community Edition and I see that Project Nodes are not supported without an Enterprise license. My first thought was to just use MQTT messaging between instances. Besid… --- ## [Shutting Down a Windows PC from Node-RED Running in Docker – Best Practices & Deployment Advice](https://discourse.nodered.org/t/shutting-down-a-windows-pc-from-node-red-running-in-docker-best-practices-deployment-advice/100122)
**Author:** [@hipatel93](https://discourse.nodered.org/u/hipatel93)\ **Replies:** 2\ **Last updated:** [9 January 2026 09:50 UTC](https://discourse.nodered.org/t/shutting-down-a-windows-pc-from-node-red-running-in-docker-best-practices-deployment-advice/100122 "2026-01-09T09:50:33Z")
I am relatively new to Node-RED and have been learning through daily contributions over the past few months. I am now approaching the stage where I can build a partial project, as shown in the attached image. Currently,… --- ## [Request: Add node-name as a CSS class to flow display](https://discourse.nodered.org/t/request-add-node-name-as-a-css-class-to-flow-display/100741)
**Author:** [@TotallyInformation](https://discourse.nodered.org/u/TotallyInformation)\ **Replies:** 5\ **Last updated:** [10 April 2026 12:57 UTC](https://discourse.nodered.org/t/request-add-node-name-as-a-css-class-to-flow-display/100741 "2026-04-10T12:57:00Z")
Hi all, I'd like to request that a node's name be added as a class to the top-level \ entry for a node in a flow: e.g. In this example of an http-in node in a flow, what was: \ **Author:** [@Colin](https://discourse.nodered.org/u/Colin)\ **Replies:** 1\ **Last updated:** [5 July 2026 07:53 UTC](https://discourse.nodered.org/t/nr-5-0-1-repeated-node-red-must-be-restarted-to-enable-upgraded-modules/101411 "2026-07-05T07:53:31Z") After upgrading a pi to 5.0.1 (from 4), and nodejs upgrade to 24 (using the script) I see the 'Node-RED must be restarted to enable upgraded modules' popup when I refresh the page, even after restarts. There is nothing … --- ## [Changes made in the web UI do not save or persist](https://discourse.nodered.org/t/changes-made-in-the-web-ui-do-not-save-or-persist/101879)
**Author:** [@RichardL](https://discourse.nodered.org/u/RichardL)\ **Replies:** 3\ **Last updated:** [9 October 2026 10:25 UTC](https://discourse.nodered.org/t/changes-made-in-the-web-ui-do-not-save-or-persist/101879 "2026-10-09T10:25:10Z")
I have a weird issue. I am running version 5.0.8 in a container managed by Podman and have been running node-red with periodic updates for several years and in the last month I have had a very weird issue some up. Any e… --- ## [Modbus value display problem](https://discourse.nodered.org/t/modbus-value-display-problem/101117)
**Author:** [@jlt57](https://discourse.nodered.org/u/jlt57)\ **Replies:** 3\ **Last updated:** [25 May 2026 08:59 UTC](https://discourse.nodered.org/t/modbus-value-display-problem/101117 "2026-05-25T08:59:25Z")
Hello everyone, I'm having a problem with Modbus and data display. (I'm a beginner, but I think I understand the basics of Node-RED.) When I send a query of several words to a PLC, the data arrives correctly (in an ar… --- ## [Telnet commands to FourKay 4K HDBT switcher](https://discourse.nodered.org/t/telnet-commands-to-fourkay-4k-hdbt-switcher/100486)
**Author:** [@BartKrap](https://discourse.nodered.org/u/BartKrap)\ **Replies:** 4\ **Last updated:** [3 March 2026 13:20 UTC](https://discourse.nodered.org/t/telnet-commands-to-fourkay-4k-hdbt-switcher/100486 "2026-03-03T13:20:11Z")
Hello, I have a Fourkay (OREI) HDBT matrix which I would like to integrate with Home Assistant through Node-RED. See: https://www.youtube.com/watch?v=i756a9TwtpQ I'm able to send Telnet commands through Putty without i… --- ## [LLM calls in Node-RED through an OpenAI-compatible gateway, with a bounded retry + fallback model (flow included)](https://discourse.nodered.org/t/llm-calls-in-node-red-through-an-openai-compatible-gateway-with-a-bounded-retry-fallback-model-flow-included/101953)
**Author:** [@apigoto](https://discourse.nodered.org/u/apigoto)\ **Replies:** 2\ **Last updated:** [21 October 2026 02:36 UTC](https://discourse.nodered.org/t/llm-calls-in-node-red-through-an-openai-compatible-gateway-with-a-bounded-retry-fallback-model-flow-included/101953 "2026-10-21T02:36:32Z")
I work on the APIGOTO team, and APIGOTO is independent of OpenAI, Anthropic and Google. It's an OpenAI-compatible API gateway. The flow below works the same against OpenAI itself or any compatible endpoint. I wanted LLM… --- ## [Link Node Properties Window](https://discourse.nodered.org/t/link-node-properties-window/100123)
**Author:** [@MyRandomThoughts](https://discourse.nodered.org/u/MyRandomThoughts)\ **Replies:** 1\ **Last updated:** [9 January 2026 14:56 UTC](https://discourse.nodered.org/t/link-node-properties-window/100123 "2026-01-09T14:56:20Z")
Can I suggest adding some extra controls to the properties window for the three link nodes (link-in, link-out, link-call) 1: Add a tick box to show just the currently selected link partner(s). It would be nice to filt… --- ## [Ui-form misbehaving all of a sudden](https://discourse.nodered.org/t/ui-form-misbehaving-all-of-a-sudden/100630)
**Author:** [@metawops](https://discourse.nodered.org/u/metawops)\ **Replies:** 4\ **Last updated:** [26 March 2026 16:27 UTC](https://discourse.nodered.org/t/ui-form-misbehaving-all-of-a-sudden/100630 "2026-03-26T16:27:29Z")
Dear lovely, helpful people, I have a ui-form in my flow that used to work fine. It consists of 5 input fields, 3 text, 2 number, an "add" and a "cancel" button. These options are dynamically set via a function node i… --- ## [Nodered Email Node](https://discourse.nodered.org/t/nodered-email-node/100714)
**Author:** [@gegge](https://discourse.nodered.org/u/gegge)\ **Replies:** 2\ **Last updated:** [4 April 2026 14:03 UTC](https://discourse.nodered.org/t/nodered-email-node/100714 "2026-04-04T14:03:42Z")
Hello I'm trying to set up the email node, but I'm having trouble. I created and entered the 16-digit Gmail token. But it still says "Sending failed!" Thanks --- ## [Switch on buffer payload type](https://discourse.nodered.org/t/switch-on-buffer-payload-type/99767)
**Author:** [@cymplecy](https://discourse.nodered.org/u/cymplecy)\ **Replies:** 2\ **Last updated:** [24 November 2025 16:39 UTC](https://discourse.nodered.org/t/switch-on-buffer-payload-type/99767 "2025-11-24T16:39:17Z")
I've got an MQTT buffer feed of the RGB values of a coloured switch press e.g. press red - get \[255,0,0\], blue get \[0,0,255\] etc I'd like to have a switch that routes each colour to a different output but there doesn'… --- ## [Upgrading to zwave-js version 11](https://discourse.nodered.org/t/upgrading-to-zwave-js-version-11/102010)
**Author:** [@ottsm](https://discourse.nodered.org/u/ottsm)\ **Replies:** 4\ **Last updated:** [30 October 2026 07:43 UTC](https://discourse.nodered.org/t/upgrading-to-zwave-js-version-11/102010 "2026-10-30T07:43:59Z")
I've been converting my old flows over to version 11 of zwave.js. First of all I appreciate all the hard work that was put into this development. I figured most of what is needed in my code to make the conversion. One… --- ## [Editing flow or node window has a queue?](https://discourse.nodered.org/t/editing-flow-or-node-window-has-a-queue/101462)
**Author:** [@Robert0](https://discourse.nodered.org/u/Robert0)\ **Replies:** 4\ **Last updated:** [13 July 2026 10:31 UTC](https://discourse.nodered.org/t/editing-flow-or-node-window-has-a-queue/101462 "2026-07-13T10:31:39Z")
Whenever you select a flow or node in the explorer, it opens an edit window. Is it a feature that the edit window queues up follow up edits? Just a question --- ## [Exec node execution environment](https://discourse.nodered.org/t/exec-node-execution-environment/100108)
**Author:** [@mhl](https://discourse.nodered.org/u/mhl)\ **Replies:** 4\ **Last updated:** [9 January 2026 17:49 UTC](https://discourse.nodered.org/t/exec-node-execution-environment/100108 "2026-01-09T17:49:06Z")
I am running node-red in a docker container on an rpios-lite system which comes with busybox tar instead of real tar. I need to use the --checkpoint option of real tar -- and that option is not provided by busybox tar. S… [Previous page](https://discourse.nodered.org/top.md?page=16&per_page=50) [Next page](https://discourse.nodered.org/top.md?page=18&per_page=50)