# Latest

**URL:** https://discourse.nodered.org/latest.md?page=10

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

**Page:** 11

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## [Using simpler globar variables \`RED.f.myVar\`](https://discourse.nodered.org/t/using-simpler-globar-variables-red-f-myvar/101179)

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**Author:** [@PizzaProgram](https://discourse.nodered.org/u/PizzaProgram)\
**Replies:** 40\
**Last updated:** [7 June 2026 14:50 UTC](https://discourse.nodered.org/t/using-simpler-globar-variables-red-f-myvar/101179 "2026-06-07T14:50:50Z")

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I'm currently a bit frustrated why it has to be sooooo complicated to use always these flow.get() .set() methods to simply store a variable in memory? I know I can make my own "utility functions", but still I have to de…

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## [Ned-red work as modbus tcp server communicate with scada application](https://discourse.nodered.org/t/ned-red-work-as-modbus-tcp-server-communicate-with-scada-application/101205)

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**Author:** [@Boy\_co\_don](https://discourse.nodered.org/u/Boy_co_don)\
**Replies:** 8\
**Last updated:** [7 June 2026 11:28 UTC](https://discourse.nodered.org/t/ned-red-work-as-modbus-tcp-server-communicate-with-scada-application/101205 "2026-06-07T11:28:28Z")

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Dear Expert I want to buid node-red as Modbus TCP server to communicate with SCADA. I need Node-red Mobus TCP server send data to SCADA via FC4 and FC2. And receive command from SCADA with FC3/FC6 and FC1/FC5. I tried…

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## [Node-red-contrib-markdown-note — Always-visible Markdown notes on the flow canvas](https://discourse.nodered.org/t/node-red-contrib-markdown-note-always-visible-markdown-notes-on-the-flow-canvas/101207)

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**Author:** [@Backroads4me](https://discourse.nodered.org/u/Backroads4me)\
**Replies:** 15\
**Last updated:** [6 June 2026 20:55 UTC](https://discourse.nodered.org/t/node-red-contrib-markdown-note-always-visible-markdown-notes-on-the-flow-canvas/101207 "2026-06-06T20:55:56Z")

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I created node-red-contrib-markdown-note a while ago for my own flows. I’ve finally gotten it to a place I’m happy with, so I figured it was time to share it with the community. It adds always-visible, Markdown-formatte…

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## [Nssm + Log user](https://discourse.nodered.org/t/nssm-log-user/101176)

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**Author:** [@jlt57](https://discourse.nodered.org/u/jlt57)\
**Replies:** 6\
**Last updated:** [6 June 2026 12:20 UTC](https://discourse.nodered.org/t/nssm-log-user/101176 "2026-06-06T12:20:42Z")

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Hello everyone, I installed Node-RED a month ago and I'm testing it thoroughly. For automatic startup, I'm using nssm.exe, which runs it as a service. This works very well, but there's a drawback: the connections made …

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## [Node-red-start - nodered.service: ...empty string: NODE\_RED\_OPTIONS](https://discourse.nodered.org/t/node-red-start-nodered-service-empty-string-node-red-options/101196)

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**Author:** [@mudwalker](https://discourse.nodered.org/u/mudwalker)\
**Replies:** 23\
**Last updated:** [6 June 2026 10:10 UTC](https://discourse.nodered.org/t/node-red-start-nodered-service-empty-string-node-red-options/101196 "2026-06-06T10:10:34Z")

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Hi, I seem to have done something to my Development Node-RED installation and I have checked a few things, but it is now beyond my knowledge... node-red-start Start Node-RED Once Node-RED has started, point a brow…

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## [Send data using WLAN from Serial control node (ttyUSB0) from Raspberry Pi Zero W to a Raspberry Pi 4B](https://discourse.nodered.org/t/send-data-using-wlan-from-serial-control-node-ttyusb0-from-raspberry-pi-zero-w-to-a-raspberry-pi-4b/101125)

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**Author:** [@nosered1966](https://discourse.nodered.org/u/nosered1966)\
**Replies:** 25\
**Last updated:** [5 June 2026 20:22 UTC](https://discourse.nodered.org/t/send-data-using-wlan-from-serial-control-node-ttyusb0-from-raspberry-pi-zero-w-to-a-raspberry-pi-4b/101125 "2026-06-05T20:22:28Z")

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Hi all, currently I use the serial control node (ttyUSB0) of a Raspberry Pi 4B (1) to read data from a directly connected heating device and showing this data in a Node-RED dashboard. However, since the rpi4B (1) is ac…

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## [Subflow Name from Varibable](https://discourse.nodered.org/t/subflow-name-from-varibable/101206)

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**Author:** [@AndyX](https://discourse.nodered.org/u/AndyX)\
**Replies:** 0\
**Last updated:** [5 June 2026 17:20 UTC](https://discourse.nodered.org/t/subflow-name-from-varibable/101206 "2026-06-05T17:20:29Z")

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Hello, Can I use a variable in my example "topic" for the Name when no Name is set so I don't have to set it twice? Thanks

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## [Flashing LED's on dashboard for kWh for High or Low rate is active](https://discourse.nodered.org/t/flashing-leds-on-dashboard-for-kwh-for-high-or-low-rate-is-active/101180)

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**Author:** [@Johannesje](https://discourse.nodered.org/u/Johannesje)\
**Replies:** 12\
**Last updated:** [5 June 2026 13:18 UTC](https://discourse.nodered.org/t/flashing-leds-on-dashboard-for-kwh-for-high-or-low-rate-is-active/101180 "2026-06-05T13:18:20Z")

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Hi My kWh meter displays a low and a high rate (counters). I have an MQTT connection to Node Red. When the high rate is active, I would like an LED light on my dashboard to flash. And the same applies when the low rat…

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## [How do I find this node?](https://discourse.nodered.org/t/how-do-i-find-this-node/101192)

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**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")

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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?

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## [Inject nodes not always firing](https://discourse.nodered.org/t/inject-nodes-not-always-firing/101191)

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**Author:** [@dougle03](https://discourse.nodered.org/u/dougle03)\
**Replies:** 5\
**Last updated:** [5 June 2026 09:05 UTC](https://discourse.nodered.org/t/inject-nodes-not-always-firing/101191 "2026-06-05T09:05:32Z")

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I've noticed over the last month or so that occasionally some inject nodes are failing to fire? I've a number of interval and timed interval nodes, but on more than a few occasions now I've noticed that they sometimes f…

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## [FlowFuse v2.31 - Agentic Development is Out of Open Beta!](https://discourse.nodered.org/t/flowfuse-v2-31-agentic-development-is-out-of-open-beta/101190)

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**Author:** [@KristopherLeads](https://discourse.nodered.org/u/KristopherLeads)\
**Replies:** 0\
**Last updated:** [4 June 2026 17:13 UTC](https://discourse.nodered.org/t/flowfuse-v2-31-agentic-development-is-out-of-open-beta/101190 "2026-06-04T17:13:23Z")

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FlowFuse 2.31 is out. The headline: agentic development is now in open beta. FlowFuse Expert builds your industrial application for you. Describe the OEE dashboard, MES handover screen, or UNS topic mapping you need, an…

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## [Introducing Nodebuilder](https://discourse.nodered.org/t/introducing-nodebuilder/101185)

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**Author:** [@pankajithetaai](https://discourse.nodered.org/u/pankajithetaai)\
**Replies:** 3\
**Last updated:** [4 June 2026 14:19 UTC](https://discourse.nodered.org/t/introducing-nodebuilder/101185 "2026-06-04T14:19:15Z")

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This is my first post on the forum. Let me introduce myself. My name is Pankaj Sharma and I have been using Node-RED for the better part of 5 years. We recently went on an endeavor to simplify node creation using scaffol…

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## [Problem by using node-red-contrib-opcua for PLC backup](https://discourse.nodered.org/t/problem-by-using-node-red-contrib-opcua-for-plc-backup/101182)

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**Author:** [@Petonius](https://discourse.nodered.org/u/Petonius)\
**Replies:** 3\
**Last updated:** [4 June 2026 14:10 UTC](https://discourse.nodered.org/t/problem-by-using-node-red-contrib-opcua-for-plc-backup/101182 "2026-06-04T14:10:45Z")

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Hi, I have a problem with reading out data from PLC to make a backup. I use node-red-contrib-opcua client node and Browser node for it. The data(Recipes of a machine) are send to specified datablock of Siemens S7-1500…

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## [🎉 Node-RED 4.1.11 released](https://discourse.nodered.org/t/node-red-4-1-11-released/101187)

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**Author:** [@knolleary](https://discourse.nodered.org/u/knolleary)\
**Replies:** 1\
**Last updated:** [4 June 2026 11:54 UTC](https://discourse.nodered.org/t/node-red-4-1-11-released/101187 "2026-06-04T11:54:26Z")

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Node-RED 4.1.11 has been published. This contains a number of minor bug fixes in the editor, removes some stray logging that slipped into 4.1.10 and keeps dependencies up to date. That said, we're aware of the current …

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## [How to increase font size in function node editor (Victron Cerbo)](https://discourse.nodered.org/t/how-to-increase-font-size-in-function-node-editor-victron-cerbo/101077)

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**Author:** [@usernamepasswordBS](https://discourse.nodered.org/u/usernamepasswordBS)\
**Replies:** 45\
**Last updated:** [4 June 2026 11:33 UTC](https://discourse.nodered.org/t/how-to-increase-font-size-in-function-node-editor-victron-cerbo/101077 "2026-06-04T11:33:16Z")

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Hi all, on my Win 10 laptop I have tried various touchpad gestures and key combinations but the best I can get is a zoom on the whole page, not just the text within the editor. The actual instance of Node-red is running…

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## [Node-red won't open, can't connect etc. Suspect nodes](https://discourse.nodered.org/t/node-red-wont-open-cant-connect-etc-suspect-nodes/101169)

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**Author:** [@usernamepasswordBS](https://discourse.nodered.org/u/usernamepasswordBS)\
**Replies:** 18\
**Last updated:** [3 June 2026 20:26 UTC](https://discourse.nodered.org/t/node-red-wont-open-cant-connect-etc-suspect-nodes/101169 "2026-06-03T20:26:33Z")

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I've had a problem where the browser was giving various errors, not connecting etc. and I think it's down to this little combination: \[{"id":"cb6f5ca6c9e19168","type":"inject","z":"1dd0a75c02dce780","name":"","props":\[{…

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## [Catch-all in group and order of insertion](https://discourse.nodered.org/t/catch-all-in-group-and-order-of-insertion/101178)

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**Author:** [@gregorius](https://discourse.nodered.org/u/gregorius)\
**Replies:** 0\
**Last updated:** [2 June 2026 18:07 UTC](https://discourse.nodered.org/t/catch-all-in-group-and-order-of-insertion/101178 "2026-06-02T18:07:33Z")

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Hi There, Yippee another nichy edge-case: What is happening? The function nodes are generating exceptions and the catch 1 nodes are receiving those exceptions respectively (i.e. the catch: 1 at the top catches the f…

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## [Should the catch node be able to catch warnings?](https://discourse.nodered.org/t/should-the-catch-node-be-able-to-catch-warnings/101163)

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**Author:** [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)\
**Replies:** 18\
**Last updated:** [2 June 2026 08:52 UTC](https://discourse.nodered.org/t/should-the-catch-node-be-able-to-catch-warnings/101163 "2026-06-02T08:52:00Z")

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... or should core have a dedicated node to catch warning messages? There are a few nodes that spit out warnings that can sometimes be critical to smooth operation however they cannot be caught and programmatically acti…

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## [Another weird happening with \`msg\` and \`null\`](https://discourse.nodered.org/t/another-weird-happening-with-msg-and-null/101172)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 9\
**Last updated:** [2 June 2026 08:22 UTC](https://discourse.nodered.org/t/another-weird-happening-with-msg-and-null/101172 "2026-06-02T08:22:35Z")

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I am really having fun with rogue messages and strange things happening in my flows. (my thread on subflows for buttons for instance) So I'm confused with what I am seeing and to maybe save me a lot of typing here is a…

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## [Another "Weird" question for coders. (Gate nodes)](https://discourse.nodered.org/t/another-weird-question-for-coders-gate-nodes/101161)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 10\
**Last updated:** [1 June 2026 21:15 UTC](https://discourse.nodered.org/t/another-weird-question-for-coders-gate-nodes/101161 "2026-06-01T21:15:37Z")

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Only because I am still learning BETTER WAYS TO CODE I am seeing mistakes now and then. And - alas - some are on the gate node/s. node-red-contrib-simple-gate Anyway, now and then I am getting messages from said gates…

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## [Wait until node, sensor.time and input\_datetime](https://discourse.nodered.org/t/wait-until-node-sensor-time-and-input-datetime/101167)

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**Author:** [@hansjeu](https://discourse.nodered.org/u/hansjeu)\
**Replies:** 2\
**Last updated:** [1 June 2026 11:38 UTC](https://discourse.nodered.org/t/wait-until-node-sensor-time-and-input-datetime/101167 "2026-06-01T11:38:47Z")

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I use Node-red in Home assistent. I have the two variables: 1.sensor.time 2.input\_datetime.stop\_airco I would like to use the "wait until node". The node must wait until the time is stored in input\_datetime.stop\_air…

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## [A subflow for people who like buttons](https://discourse.nodered.org/t/a-subflow-for-people-who-like-buttons/101162)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 10\
**Last updated:** [1 June 2026 10:35 UTC](https://discourse.nodered.org/t/a-subflow-for-people-who-like-buttons/101162 "2026-06-01T10:35:26Z")

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Yeah, I know subflows area a bit Hit and miss you either love them or ate them. I was writing function nodes that does SOME of this but not all. They were HUGE blocks of text and though it/they were robust, accidental…

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## [Function node: msg properties tab definition](https://discourse.nodered.org/t/function-node-msg-properties-tab-definition/101133)

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**Author:** [@gregorius](https://discourse.nodered.org/u/gregorius)\
**Replies:** 7\
**Last updated:** [1 June 2026 08:32 UTC](https://discourse.nodered.org/t/function-node-msg-properties-tab-definition/101133 "2026-06-01T08:32:12Z")

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Hi There, Just out of interest, is there any work being done on definition of msg properties required/used by a function nodes? What I'm thinking of is a specification of "possible" properties that are accessed on a ms…

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## [Tidied up Install script for v5](https://discourse.nodered.org/t/tidied-up-install-script-for-v5/100880)

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**Author:** [@dceejay](https://discourse.nodered.org/u/dceejay)\
**Replies:** 11\
**Last updated:** [31 May 2026 10:02 UTC](https://discourse.nodered.org/t/tidied-up-install-script-for-v5/100880 "2026-05-31T10:02:26Z")

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The current install script has done a fair few rounds, so I have had a go at tidying it up somewhat - to get rid of some of the old cruft that had accumulated along the way - and to make it more ready for v5 (ie node 22…

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## [Help cleaning up old code. SEARCH seems rather poor](https://discourse.nodered.org/t/help-cleaning-up-old-code-search-seems-rather-poor/101156)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 7\
**Last updated:** [30 May 2026 11:46 UTC](https://discourse.nodered.org/t/help-cleaning-up-old-code-search-seems-rather-poor/101156 "2026-05-30T11:46:08Z")

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I am not sure it is a good thing, but my past is kind of haunting me. WAY BACK WHEN..... var was used to declare variables used in function node. This has made way to let. So I a thought I would go through and searc…

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## [Additional mini display](https://discourse.nodered.org/t/additional-mini-display/101157)

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**Author:** [@krambriw](https://discourse.nodered.org/u/krambriw)\
**Replies:** 1\
**Last updated:** [30 May 2026 11:38 UTC](https://discourse.nodered.org/t/additional-mini-display/101157 "2026-05-30T11:38:32Z")

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Not the most exciting thing we have seen, but for me, I needed a little better & simpler way to provide me with some informative stuff from my home automation system Instead of starring at the full size browser on my co…

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## [Modbus RTU transparent proxy](https://discourse.nodered.org/t/modbus-rtu-transparent-proxy/101147)

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**Author:** [@RobStockley](https://discourse.nodered.org/u/RobStockley)\
**Replies:** 3\
**Last updated:** [30 May 2026 00:14 UTC](https://discourse.nodered.org/t/modbus-rtu-transparent-proxy/101147 "2026-05-30T00:14:19Z")

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Does anyone here have an example, or can put me in touch with someone, with a working example of Modbus RTU transparent proxy using RPi and Node-Red? I'd like to monitor RS485 metering data. Increased latency will not be…

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## [\[announce\] node-red-contrib-interactive-inject](https://discourse.nodered.org/t/announce-node-red-contrib-interactive-inject/101118)

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**Author:** [@dirkjanfaber](https://discourse.nodered.org/u/dirkjanfaber)\
**Replies:** 30\
**Last updated:** [29 May 2026 20:24 UTC](https://discourse.nodered.org/t/announce-node-red-contrib-interactive-inject/101118 "2026-05-29T20:24:24Z")

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Hello everyone, My new "interactive inject" node makes developing and debugging flows easier by allowing you to inject values interactively directly from the canvas. I've released it over a week ago and it seems to …

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## [Node-RED Projects and Credentials Encryption in DevOps Pipeline](https://discourse.nodered.org/t/node-red-projects-and-credentials-encryption-in-devops-pipeline/101141)

<div class="topic-metadata">

**Author:** [@aitor](https://discourse.nodered.org/u/aitor)\
**Replies:** 3\
**Last updated:** [29 May 2026 10:22 UTC](https://discourse.nodered.org/t/node-red-projects-and-credentials-encryption-in-devops-pipeline/101141 "2026-05-29T10:22:19Z")

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Hi, I'm having trouble with Node-RED projects and credential encryption. Context of my setup: Development is done in a Dockerized Node-RED instance with Projects (git) enabled. When I commit code, it is pushed to a G…

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## [Template node - Add JSONata syntax highlighting and formatting](https://discourse.nodered.org/t/template-node-add-jsonata-syntax-highlighting-and-formatting/101155)

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**Author:** [@christopher-lambe](https://discourse.nodered.org/u/christopher-lambe)\
**Replies:** 0\
**Last updated:** [29 May 2026 07:45 UTC](https://discourse.nodered.org/t/template-node-add-jsonata-syntax-highlighting-and-formatting/101155 "2026-05-29T07:45:05Z")

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JSONata is becoming more popular and I am using lately a lot to clean the JSON outputs of OData and LLM structured JSON outputs. I keep the JSONata in the template node for easy access and I noticed it cannot be syntax …

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