# Latest

**URL:** https://discourse.nodered.org/latest.md?page=217

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

**Page:** 218

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## [How to build nodered RAG systems!](https://discourse.nodered.org/t/how-to-build-nodered-rag-systems/86614)

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**Author:** [@abedmalak](https://discourse.nodered.org/u/abedmalak)\
**Replies:** 3\
**Last updated:** [21 March 2024 09:34 UTC](https://discourse.nodered.org/t/how-to-build-nodered-rag-systems/86614 "2024-03-21T09:34:17Z")

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I am new to nodered and couldn't find tutorials or documentations anywhere, can someone please guide me

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## [Daemon node message in debug window not available in status node](https://discourse.nodered.org/t/daemon-node-message-in-debug-window-not-available-in-status-node/86624)

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**Author:** [@iot.regenesis](https://discourse.nodered.org/u/iot.regenesis)\
**Replies:** 0\
**Last updated:** [21 March 2024 06:58 UTC](https://discourse.nodered.org/t/daemon-node-message-in-debug-window-not-available-in-status-node/86624 "2024-03-21T06:58:52Z")

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hi all, I am using few daemon nodes. I know how to evaluate the daemon node states by using status node. When the flow redeployed/restarted each daemon node sent out message like in the picture below, message inside re…

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## [Dashboard 2.0 is now Generally Available](https://discourse.nodered.org/t/dashboard-2-0-is-now-generally-available/84913)

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**Author:** [@joepavitt](https://discourse.nodered.org/u/joepavitt)\
**Replies:** 95\
**Last updated:** [14 March 2024 10:52 UTC](https://discourse.nodered.org/t/dashboard-2-0-is-now-generally-available/84913 "2024-03-14T10:52:44Z")

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Hi All, I'm very pleased to announce that we've just hit a big milestone with the development effort on Node-RED Dashboard 2.0 - we've just released our first major version - v1.0.0: You can read more about it here: N…

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## [Converting Node-RED flows to UNIX pipes](https://discourse.nodered.org/t/converting-node-red-flows-to-unix-pipes/86590)

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**Author:** [@gregorius](https://discourse.nodered.org/u/gregorius)\
**Replies:** 5\
**Last updated:** [20 March 2024 20:18 UTC](https://discourse.nodered.org/t/converting-node-red-flows-to-unix-pipes/86590 "2024-03-20T20:18:43Z")

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Hi There, I was thinking about UNIX pipes and the obvious relationship to NR flows, as both are based on flow based programming. Is there anything that converts NR flows to a UNIX pipes representation? It won't have to…

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## [Node-Red High CPU load after 24 hours](https://discourse.nodered.org/t/node-red-high-cpu-load-after-24-hours/86318)

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**Author:** [@Learn](https://discourse.nodered.org/u/Learn)\
**Replies:** 10\
**Last updated:** [20 March 2024 16:51 UTC](https://discourse.nodered.org/t/node-red-high-cpu-load-after-24-hours/86318 "2024-03-20T16:51:17Z")

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Hello, for a few days now I have had the problem that everything is very slow. For example, no matter where I press a button, it takes a very long time (about 5 seconds) for the assigned light to come on. I noticed that…

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## [No connection information in flows](https://discourse.nodered.org/t/no-connection-information-in-flows/86599)

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**Author:** [@Ives25](https://discourse.nodered.org/u/Ives25)\
**Replies:** 0\
**Last updated:** [20 March 2024 16:43 UTC](https://discourse.nodered.org/t/no-connection-information-in-flows/86599 "2024-03-20T16:43:32Z")

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Hi, Hi, Connection information in the flows is displayed after several minutes (Home Assistant add-on) as is the possibility of using the debugger; This problem appeared over a month ago and I can't find the cause.

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## [AxiDraw: plotting/drawing flows](https://discourse.nodered.org/t/axidraw-plotting-drawing-flows/86275)

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**Author:** [@gregorius](https://discourse.nodered.org/u/gregorius)\
**Replies:** 4\
**Last updated:** [20 March 2024 16:11 UTC](https://discourse.nodered.org/t/axidraw-plotting-drawing-flows/86275 "2024-03-20T16:11:57Z")

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Hi There, I recently obtained an AxiDraw plotter and have been playing around with plotting flows: The work is based on the screenshot tab node and a flow that removes duplication from the SVG - everything is only d…

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## [Installing dependency modules when cloning project to server](https://discourse.nodered.org/t/installing-dependency-modules-when-cloning-project-to-server/86475)

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**Author:** [@bs-eng](https://discourse.nodered.org/u/bs-eng)\
**Replies:** 14\
**Last updated:** [20 March 2024 16:01 UTC](https://discourse.nodered.org/t/installing-dependency-modules-when-cloning-project-to-server/86475 "2024-03-20T16:01:43Z")

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Hi there! Currently I am cloning my project to two other linux PCs, which are set up identical to the the source system. When starting node-red first time on the clone I setup the git and switch to the branch needed. …

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## [Uibuilder import free vue/tailwind template](https://discourse.nodered.org/t/uibuilder-import-free-vue-tailwind-template/86591)

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**Author:** [@David83](https://discourse.nodered.org/u/David83)\
**Replies:** 2\
**Last updated:** [20 March 2024 14:50 UTC](https://discourse.nodered.org/t/uibuilder-import-free-vue-tailwind-template/86591 "2024-03-20T14:50:16Z")

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Hello, i'm not shure if it's possible. And if it's possible how dose it works? What must i do? If i use uibuilder in node-red can i import some free templates like this?

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## [Android Client node-red](https://discourse.nodered.org/t/android-client-node-red/12324)

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**Author:** [@ben1](https://discourse.nodered.org/u/ben1)\
**Replies:** 39\
**Last updated:** [20 March 2024 12:55 UTC](https://discourse.nodered.org/t/android-client-node-red/12324 "2024-03-20T12:55:25Z")

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Hi, New to node-red . I did my first button and text area in a dashboard. Now i can access to http://localhost:1880/ui it is good ! My goal is to be able to open my ui from my android phone without browser. Do you …

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## [Troubleshoot Reconnect error in Dashboard](https://discourse.nodered.org/t/troubleshoot-reconnect-error-in-dashboard/86493)

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**Author:** [@jslegers73](https://discourse.nodered.org/u/jslegers73)\
**Replies:** 2\
**Last updated:** [20 March 2024 12:19 UTC](https://discourse.nodered.org/t/troubleshoot-reconnect-error-in-dashboard/86493 "2024-03-20T12:19:26Z")

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Hi, I have node-red running in docker. I see that this question is asked a lot. I get an error when I go to the dashboard. If I check the log I don't see much usefull info : The last line was me restarting the Z…

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## [Download a file from dashboard](https://discourse.nodered.org/t/download-a-file-from-dashboard/86273)

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**Author:** [@madmax](https://discourse.nodered.org/u/madmax)\
**Replies:** 6\
**Last updated:** [20 March 2024 11:30 UTC](https://discourse.nodered.org/t/download-a-file-from-dashboard/86273 "2024-03-20T11:30:49Z")

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Hello! I would like to click on a button on the dashboard that would then trigger a flow and then download the file as a buffer. How do I do this best? Does anyone have a tip for me? Thanks in advance.

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## [How to display a PDF file in a new tab](https://discourse.nodered.org/t/how-to-display-a-pdf-file-in-a-new-tab/86573)

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**Author:** [@Yury](https://discourse.nodered.org/u/Yury)\
**Replies:** 5\
**Last updated:** [20 March 2024 11:24 UTC](https://discourse.nodered.org/t/how-to-display-a-pdf-file-in-a-new-tab/86573 "2024-03-20T11:24:37Z")

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I made the HTML file display (read as utf 8) in a new tab as described by dear Steve-Mcl: https://flows.nodered.org/flow/db68bd4934cf46f39e6e453a348bc419 But the PDF file can only be downloaded in a new tab (read as bu…

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## [Mcprotocol logging bad quality then uncaught exception](https://discourse.nodered.org/t/mcprotocol-logging-bad-quality-then-uncaught-exception/86221)

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**Author:** [@Leon001](https://discourse.nodered.org/u/Leon001)\
**Replies:** 17\
**Last updated:** [20 March 2024 10:21 UTC](https://discourse.nodered.org/t/mcprotocol-logging-bad-quality-then-uncaught-exception/86221 "2024-03-20T10:21:03Z")

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error text: " Response Header is not valid Logging a Bad Quality the Pointer 0 " it usually runs correctly but sometimes it disconnceted when i read data from mcprotocol PLC.Is there something wrong with the PLC? …

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## [Node red OPCUA write through kepserver](https://discourse.nodered.org/t/node-red-opcua-write-through-kepserver/86589)

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**Author:** [@ect\_09](https://discourse.nodered.org/u/ect_09)\
**Replies:** 2\
**Last updated:** [20 March 2024 09:14 UTC](https://discourse.nodered.org/t/node-red-opcua-write-through-kepserver/86589 "2024-03-20T09:14:37Z")

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Hi, I am new to forum, below is the code for node red flow to write the value to opc client. the purpose is to first read the setpoint and then change the set point in it by increasing/decreasing arrow. but issue is it…

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## [IFM VTV 122 Vibration Transmitter](https://discourse.nodered.org/t/ifm-vtv-122-vibration-transmitter/86416)

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**Author:** [@union](https://discourse.nodered.org/u/union)\
**Replies:** 9\
**Last updated:** [20 March 2024 02:06 UTC](https://discourse.nodered.org/t/ifm-vtv-122-vibration-transmitter/86416 "2024-03-20T02:06:42Z")

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Hello, is there anyone who use this type of sensor? I still a bit confuse about this sensor output and communication protocol. This is the technical specification from ifm website: VTV122 - Vibration transmitter - ifm M…

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## [Error in user guide?](https://discourse.nodered.org/t/error-in-user-guide/86486)

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**Author:** [@jbudd](https://discourse.nodered.org/u/jbudd)\
**Replies:** 5\
**Last updated:** [19 March 2024 22:26 UTC](https://discourse.nodered.org/t/error-in-user-guide/86486 "2024-03-19T22:26:56Z")

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The user guide on using environment variables says that when Node-red is running as a service, environment variables can be defined in a file ~/.node-red/environment. The file path seems to be defined in /lib/systemd…

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## ["Invalid properties: Error in JavaScript Code" in Function Node but Function works](https://discourse.nodered.org/t/invalid-properties-error-in-javascript-code-in-function-node-but-function-works/86571)

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**Author:** [@stephenn](https://discourse.nodered.org/u/stephenn)\
**Replies:** 4\
**Last updated:** [19 March 2024 18:56 UTC](https://discourse.nodered.org/t/invalid-properties-error-in-javascript-code-in-function-node-but-function-works/86571 "2024-03-19T18:56:30Z")

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I am trying to use a Function Node to pull a stored temperature value and format it so that I can send it to a Call Service Node in Home Assistant. This code works just as I want. However, the Function Node has a Red T…

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## [SparkPlug B Manual DBirth but with a Loop Function node](https://discourse.nodered.org/t/sparkplug-b-manual-dbirth-but-with-a-loop-function-node/86468)

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**Author:** [@314PITester](https://discourse.nodered.org/u/314PITester)\
**Replies:** 3\
**Last updated:** [19 March 2024 18:36 UTC](https://discourse.nodered.org/t/sparkplug-b-manual-dbirth-but-with-a-loop-function-node/86468 "2024-03-19T18:36:55Z")

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Afternoon everyone, I have a flow that currently works but I think it could be prone to message errors and what I've attempted to do is build this into single function node that loops the data instead. So the end goal …

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## [Add logo to header?](https://discourse.nodered.org/t/add-logo-to-header/86569)

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**Author:** [@network\_potato](https://discourse.nodered.org/u/network_potato)\
**Replies:** 1\
**Last updated:** [19 March 2024 17:26 UTC](https://discourse.nodered.org/t/add-logo-to-header/86569 "2024-03-19T17:26:10Z")

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Is it psosible somehow to add an image/logo to the top right of the header of the dashboard? And/or other text/widgets?

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## [Pico W HiveMQ Cloud and Node Red issue](https://discourse.nodered.org/t/pico-w-hivemq-cloud-and-node-red-issue/86565)

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**Author:** [@badflash](https://discourse.nodered.org/u/badflash)\
**Replies:** 4\
**Last updated:** [19 March 2024 17:19 UTC](https://discourse.nodered.org/t/pico-w-hivemq-cloud-and-node-red-issue/86565 "2024-03-19T17:19:03Z")

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Totally new to this. I can’t get Node Red to receive MQTT data from HiveMQ Cloud. The Pico W is sending data and I see it in HiveMQ Cloud, but I just can’t seem to connect Node Red to HiveMQ Cloud. I'm using the free acc…

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## [Accessing environment variables](https://discourse.nodered.org/t/accessing-environment-variables/86388)

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**Author:** [@ThisEndUp](https://discourse.nodered.org/u/ThisEndUp)\
**Replies:** 15\
**Last updated:** [19 March 2024 16:47 UTC](https://discourse.nodered.org/t/accessing-environment-variables/86388 "2024-03-19T16:47:38Z")

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I'm trying to use an MQTT broker to broadcast some data. For flexibility, I want to set the MQTT variables in the system environment and then read them in my Node-Red flow. It used to work (some years ago) but no longe…

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## [Variable instead of fixed value](https://discourse.nodered.org/t/variable-instead-of-fixed-value/86563)

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**Author:** [@ziege3.0](https://discourse.nodered.org/u/ziege3.0)\
**Replies:** 1\
**Last updated:** [19 March 2024 15:00 UTC](https://discourse.nodered.org/t/variable-instead-of-fixed-value/86563 "2024-03-19T15:00:23Z")

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Hello, is it possible to set a variable instead of the 15? It would be enough for me if I could define it once in the node. PS: sorry about my english.

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## [Redirecting from one page to another while passing variables?](https://discourse.nodered.org/t/redirecting-from-one-page-to-another-while-passing-variables/86535)

<div class="topic-metadata">

**Author:** [@network\_potato](https://discourse.nodered.org/u/network_potato)\
**Replies:** 13\
**Last updated:** [19 March 2024 14:42 UTC](https://discourse.nodered.org/t/redirecting-from-one-page-to-another-while-passing-variables/86535 "2024-03-19T14:42:23Z")

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I have a page, let's call it /invoices. On that page, I have a data table that contains a list of invoices related to a specific customer (the table loads all invoices using a customer number stored in a global context …

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## [Multi-user Dashboards with Node-RED Dashboard 2.0](https://discourse.nodered.org/t/multi-user-dashboards-with-node-red-dashboard-2-0/85237)

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**Author:** [@nygma2004](https://discourse.nodered.org/u/nygma2004)\
**Replies:** 20\
**Last updated:** [19 March 2024 13:44 UTC](https://discourse.nodered.org/t/multi-user-dashboards-with-node-red-dashboard-2-0/85237 "2024-03-19T13:44:33Z")

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I am a farily new chap here, and was going through the documentation and also checked this article out: So far I only installed the @flowfuse/node-red-dashboard but I don't see how I could access the FlowFuse dashboard…

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## [Switch Pi GPIO via Node Red not ok, via HA Dashboard ok?](https://discourse.nodered.org/t/switch-pi-gpio-via-node-red-not-ok-via-ha-dashboard-ok/86561)

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**Author:** [@DerKlotz74](https://discourse.nodered.org/u/DerKlotz74)\
**Replies:** 0\
**Last updated:** [19 March 2024 13:34 UTC](https://discourse.nodered.org/t/switch-pi-gpio-via-node-red-not-ok-via-ha-dashboard-ok/86561 "2024-03-19T13:34:09Z")

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Hello, i´m still at the beginning using HA and Node Red. I´m at a point where i like to use Node Red for small automations. Where I am currently failing is the physical switching of relays that are connected to the Pi.…

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## [Mqtt not connecting to broker ip](https://discourse.nodered.org/t/mqtt-not-connecting-to-broker-ip/86551)

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**Author:** [@neyarprasanth1](https://discourse.nodered.org/u/neyarprasanth1)\
**Replies:** 17\
**Last updated:** [19 March 2024 11:36 UTC](https://discourse.nodered.org/t/mqtt-not-connecting-to-broker-ip/86551 "2024-03-19T11:36:23Z")

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Hello All, Actually I bought new R-Pi 4. There inside I installed mosquitto broker and nodered also. And mosquitto.conf file inside edit the things for listener port 1883 and Allow Anonymous true. But still in my nodere…

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## [How to disable back/forward button in UI page?](https://discourse.nodered.org/t/how-to-disable-back-forward-button-in-ui-page/86550)

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**Author:** [@2shlee](https://discourse.nodered.org/u/2shlee)\
**Replies:** 2\
**Last updated:** [19 March 2024 11:10 UTC](https://discourse.nodered.org/t/how-to-disable-back-forward-button-in-ui-page/86550 "2024-03-19T11:10:39Z")

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I want to disable the forward and back button of browser for dashboard screen. Is there any solution for me?

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## [JSON: how to generate random number?](https://discourse.nodered.org/t/json-how-to-generate-random-number/86554)

<div class="topic-metadata">

**Author:** [@realtebo](https://discourse.nodered.org/u/realtebo)\
**Replies:** 2\
**Last updated:** [19 March 2024 09:22 UTC](https://discourse.nodered.org/t/json-how-to-generate-random-number/86554 "2024-03-19T09:22:03Z")

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I need to inject random a single value in a json. I am trying msg.payload = { "temperature" : jsonata("Math.random() \* 20 + 10").evaluate(), } msg.topic = "device/ht"; return msg; but temperature is empty. What i…

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## [Disable Export in context menu](https://discourse.nodered.org/t/disable-export-in-context-menu/86542)

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**Author:** [@HarryPottar](https://discourse.nodered.org/u/HarryPottar)\
**Replies:** 1\
**Last updated:** [19 March 2024 09:15 UTC](https://discourse.nodered.org/t/disable-export-in-context-menu/86542 "2024-03-19T09:15:03Z")

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Hello, I did search but couldn't find anything. I have disabled the export in the settings file "menu-item-export-library": false, But I can still export through the context menu. How do you disable items in the con…

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