Hi, I added a notification node to my dashboard 2. I use a dark mode theme and it is hard to see the notification. How can I change the background color of the notification? Here is a screenshot. I would like to us…
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## [Cant set auth for Node-red at Render](https://discourse.nodered.org/t/cant-set-auth-for-node-red-at-render/96528)
Hello everyone, im trying to deploy Node-red on render.com at free instance as web service, using as source github repository (GitHub - yarickshark/Node-red), but i cant set authorization. I just uncommented part of "set…
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## [Setting and managing zigbee2mqtt EUROTRONIC heater thermostat COMET](https://discourse.nodered.org/t/setting-and-managing-zigbee2mqtt-eurotronic-heater-thermostat-comet/96767)
Please find attached picture of 2 heater thermostats with different settings. The first one is set to manage the valve directly from 0 to 100% ( trv -mode manual). The second one is set to manage the temperature by the…
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## [Another 'Cannot GET /ui'](https://discourse.nodered.org/t/another-cannot-get-ui/96764)
I have very limited experience with RPi and Linux, and usually depend on others to create scripts or 'how to's ' on the web to get things up and running. Firstly, let me describe what I'm dealing with:- RPi 3 (updated…
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## [Form node: mistake on output of two date fields](https://discourse.nodered.org/t/form-node-mistake-on-output-of-two-date-fields/96754)
Hi to everybody. i've insert a form node with 2 date fileds ("start" and "end" fileds). Then insert 2 date: start = 24/04/2025 end = 25/04/2025 The debug node, showing 1 day less Any idea? Thanks a lot
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## [NR Installation not on 'pi'](https://discourse.nodered.org/t/nr-installation-not-on-pi/96761)
One point to make the operation of Raspbain OS more secure, there are instructions like this on the net: The default user/password must be changed. At least the password should be changed. To increase security, the use…
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## [Gather Fuel Data in Sydney!..sorted (fuelcheck.nsw.gov.au)](https://discourse.nodered.org/t/gather-fuel-data-in-sydney-sorted-fuelcheck-nsw-gov-au/96733)
I'm trying to load the Sydney Fuel data (https://www.fuelcheck.nsw.gov.au/app) into Node-Red using the proposed API reuqtest (same comes from ChatGPT). But somehow I'm missing something. Has anybody had any luck with t…
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## [Envoi d'une image snapshot via nodered sous home assistant](https://discourse.nodered.org/t/envoi-dune-image-snapshot-via-nodered-sous-home-assistant/96751)
Bonjour, J'ai un dialogue entre nodered et telegram avec une commande /data et 3 choix, mais le choix snapshot d'une caméra ne veut pas fonctionner. Voilà le flux global : En haut l'affichage de la commande /data av…
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## [Copy node/subflow by Reference](https://discourse.nodered.org/t/copy-node-subflow-by-reference/96730)
I was thinking about this feature and it seems to make sense. What if we could create copies of nodes/subflows without actually making a new node instance when deployed? I saw people having issues with memory allocation …
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## [Changing the pictures as per the buttons click on](https://discourse.nodered.org/t/changing-the-pictures-as-per-the-buttons-click-on/96759)
Hello, Ibuilt two buttons and one template inDashboard. When I pressed button 1, button is sending path of the picture 1. However I could not run the image change by pressing the button in dashboard 2.JSON code is belo…
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## [Local saved icons](https://discourse.nodered.org/t/local-saved-icons/96756)
Hello, I switched from Dashboard 1 to Dashboard 2. How can I use local saved icons? I used the following code in template node in dashboard 1: \ \
**Author:** [@ThingsTinkerer](https://discourse.nodered.org/u/ThingsTinkerer)\
**Replies:** 2\
**Last updated:** [25 April 2025 13:14 UTC](https://discourse.nodered.org/t/delete-subflow-context/96752 "2025-04-25T13:14:20Z")
Really enjoying the latest feature in nr 4.0.9 which allows for easy debugging of subflow context! I noticed delete button is there, can click it to open confirmation dialog, however it doesn't seem to be deleted? Should…
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## [Using exec node as root](https://discourse.nodered.org/t/using-exec-node-as-root/96737)
I'm new here so first of all hello to everyone. I have a Victron Cerbo GX with Venus OS and a node-red v3.1.10 instance is running there. Node-red itself works fine, but I have a problem that I lost remote access to the…
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## [Problems updating ui-lable on Button](https://discourse.nodered.org/t/problems-updating-ui-lable-on-button/96750)
I want to change the color and the lable text based on the input "on" and "off". The color change works but not the lable change. What is the problem? let state = msg.payload.state; msg.ui\_update = {} if (state === "O…
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## [Node-red-contrib-gc - Exec format error on AMD EPYC Processor](https://discourse.nodered.org/t/node-red-contrib-gc-exec-format-error-on-amd-epyc-processor/96741)
Hy , somehow , i can't run the flows on the customers AMD EPYC Processor machine. How to find the problem / cause ? ( there is no internet access on that machine, so we develop it inHouse and transfering it onto…
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## [Alexa Cookie is not saved](https://discourse.nodered.org/t/alexa-cookie-is-not-saved/96746)
Hi everyone, I am using alexa-remote2-applestrudel and am setting up on a clean install of nodered. Another PI is also running fine with the same configuration. On this new install I entered the same details including …
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## [Performance issues with large project – need optimization advice](https://discourse.nodered.org/t/performance-issues-with-large-project-need-optimization-advice/96726)
Hi everyone, I'm working on a fairly large Node-RED project (portable version), and I'm running into hardware limitations, especially in terms of CPU and memory usage. My main concern is about flow optimization, partic…
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## [Custom node subscribed to flow restart event](https://discourse.nodered.org/t/custom-node-subscribed-to-flow-restart-event/42350)
Is it possible for my custom node to subscribe to the flow restart event? This would be to allow me to run some code when the flows restart. TIA
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## [Message Throttling/limits and Message Totals](https://discourse.nodered.org/t/message-throttling-limits-and-message-totals/96723)
Hello, Hopefully, I can explain my issue. Please feel free to ask any questions. I'm migrating millions of files from one volume to another. However, it's not a straightforward bulk copy of a file. The file's destinat…
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## [@smcgann/node-red-face-detection-plus](https://discourse.nodered.org/t/smcgann-node-red-face-detection-plus/95554)
Hi all, Hot on the heels of @smcgann/node-red-annotate-image-plus :rofl: I'm pleased to announce my second contrib node :tada: In fact this is one of a set of 3, which can work together to form a complete face recogni…
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## [How to find out the credentialSecret](https://discourse.nodered.org/t/how-to-find-out-the-credentialsecret/96729)
Hi everyone, I'm a bit new to Node Red and unfortunately I used a password in a config node which can't be reset and so I thought maybe I can decrypt the flows\_cred.json, for that I would need the credentialSecret. I ha…
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## [Help with the node-red-contrib-ui-time-scheduler node](https://discourse.nodered.org/t/help-with-the-node-red-contrib-ui-time-scheduler-node/96736)
Sorry, this is sort of a problem, and I want to ask for a second set of eyes to look at it if there is an elephant I'm missing. Screen shot of flow: the white lines show the other link node paths. Sorry for the Mes…
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## [Chart Log Axis Configuration](https://discourse.nodered.org/t/chart-log-axis-configuration/96734)
Hello to everyone, does anyone know of a way to set the number formatting on a log axis to avoid this issue? It seems the chart does only accept a small subset of the Chart.js configuration options. yAxes: \[{ t…
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## [Node Red as opc ua client(IOT2050) to WinCC RT Unified V18 OPCUA Server](https://discourse.nodered.org/t/node-red-as-opc-ua-client-iot2050-to-wincc-rt-unified-v18-opcua-server/96732)
I’m trying to set up my node red(node js version 18 and node red v3.0.2) as a opc ua client to WinCC Unified RT V18 OPCUA Server. however, it is giving invalid endpoint error (node-red-contrib-opcua-0.2.339). I initiall…
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## [Cannot Read Modbus TCP Data From Node-Red](https://discourse.nodered.org/t/cannot-read-modbus-tcp-data-from-node-red/96688)
New to Node-Red. We got a Vector controller which uses Node Red, and I'm trying to read data from it with a Siemens PLC using modbus TCP. The Siemens used the same code to read from another PLC. I was surprised that when…
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## [Node red on Mac mini m2 starting as a service can't execute commands via exec node](https://discourse.nodered.org/t/node-red-on-mac-mini-m2-starting-as-a-service-cant-execute-commands-via-exec-node/96684)
Hello I've installed node-red on my macmini m2 running 15.4.1 Sequoia. Everything is working fine - if is start NR by terminal (cmd node-red) the exec node is working as expected - commands are executed correctly. But …
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## [Problem comparing dates with moment isBefore](https://discourse.nodered.org/t/problem-comparing-dates-with-moment-isbefore/96711)
A follow on to Problem comparing dates I'm on BST and have now found that the database source i am using always uses UTC. I'm trying to get the following to compare with the UTC time now and not GMT but can't see how to…
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## [UI-text background color](https://discourse.nodered.org/t/ui-text-background-color/96719)
Hi, I set the dynamic properties with this code without problem ... output\[0\] = { ui\_update: { label: "ROOM", font: 'Verdana', fontSize: '26', color: 'red' } } I would like to change the background color too, so I cre…
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## [Count Unique Entries in Database to Graph](https://discourse.nodered.org/t/count-unique-entries-in-database-to-graph/96717)
Hi folks, I've resurrected an old project and I need a little help please. Long story short, I've installed Node Red on a phone. I've managed to get it to use a motion detection app to take photos and put them in a fol…
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## [Mosquitto mqtt example without escaping quotes?](https://discourse.nodered.org/t/mosquitto-mqtt-example-without-escaping-quotes/96716)
This is a not exactly a question about node red, but since this community is also expert in related fields, perhaps someone can answer anyway. I've been playing around with mosquitto\_pub and an example from thingsboard: …
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