# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=37

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

**Page:** 38

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## [Change node documentation wrong?](https://discourse.nodered.org/t/change-node-documentation-wrong/97355)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 20\
**Last updated:** [1 June 2025 15:00 UTC](https://discourse.nodered.org/t/change-node-documentation-wrong/97355 "2025-06-01T15:00:08Z")

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Folks, I'm trying to use a change node to get a global context value and not having luck. Looking at: how to get global context in change node And I now see that it has been answered as I had fallen for this in the p…

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## [Strange Row Height Fault in DB2](https://discourse.nodered.org/t/strange-row-height-fault-in-db2/97327)

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**Author:** [@Buckskin](https://discourse.nodered.org/u/Buckskin)\
**Replies:** 11\
**Last updated:** [1 June 2025 13:35 UTC](https://discourse.nodered.org/t/strange-row-height-fault-in-db2/97327 "2025-06-01T13:35:58Z")

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The row height in all my DB2 pages has suddenly reduced since updating to v1.24.1. This has happened in at least 3 different Node-RED instances and at least 2 different browsers. The only way I have found to (temporaril…

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## [Simpletime Cannot read property 'nodes' of null](https://discourse.nodered.org/t/simpletime-cannot-read-property-nodes-of-null/97359)

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**Author:** [@khfischbach](https://discourse.nodered.org/u/khfischbach)\
**Replies:** 8\
**Last updated:** [1 June 2025 10:44 UTC](https://discourse.nodered.org/t/simpletime-cannot-read-property-nodes-of-null/97359 "2025-06-01T10:44:07Z")

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I had to reinstall my Homematic-IP CCU3 from my backup. Node-Red is missing two modules. When installing node-red-contrib-simpletime I get the error: Cannot read property 'nodes' of null What could be the reason?

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## [\[Announce\] @colinl/node-red-dashboard-2-ui-gauge-classic v1.4.0 release](https://discourse.nodered.org/t/announce-colinl-node-red-dashboard-2-ui-gauge-classic-v1-4-0-release/97353)

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**Author:** [@Colin](https://discourse.nodered.org/u/Colin)\
**Replies:** 0\
**Last updated:** [31 May 2025 15:46 UTC](https://discourse.nodered.org/t/announce-colinl-node-red-dashboard-2-ui-gauge-classic-v1-4-0-release/97353 "2025-05-31T15:46:58Z")

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In case anyone is interested I have just released version 1.4.0 of @colinl/node-red-dashboard-2-ui-gauge-classic v1.4.0 incorporating the following enhancements and fixes: I have provided a configuration checkbox that …

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## [Contrib S7 error](https://discourse.nodered.org/t/contrib-s7-error/97347)

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**Author:** [@CobyCoffee](https://discourse.nodered.org/u/CobyCoffee)\
**Replies:** 2\
**Last updated:** [31 May 2025 15:08 UTC](https://discourse.nodered.org/t/contrib-s7-error/97347 "2025-05-31T15:08:06Z")

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Hi! I'm working on a project using contrib s7, I have configured the PLC IP adress and Rack Slot and the memory adresses of some variables I am using in TIA Portal, everything was working fine for a while but I was worki…

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## [Play an mp3 file in Linux Mint](https://discourse.nodered.org/t/play-an-mp3-file-in-linux-mint/97351)

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**Author:** [@cymplecy](https://discourse.nodered.org/u/cymplecy)\
**Replies:** 4\
**Last updated:** [31 May 2025 14:03 UTC](https://discourse.nodered.org/t/play-an-mp3-file-in-linux-mint/97351 "2025-05-31T14:03:11Z")

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I'm looking for someone who currently has a working flow that plays an mp3 file. Not someone with a friend who says they can. Someone that has one :slight\_smile:

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## [Noobie Node Red Automation Help](https://discourse.nodered.org/t/noobie-node-red-automation-help/96990)

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**Author:** [@nr\_ha\_user](https://discourse.nodered.org/u/nr_ha_user)\
**Replies:** 6\
**Last updated:** [30 May 2025 18:41 UTC](https://discourse.nodered.org/t/noobie-node-red-automation-help/96990 "2025-05-30T18:41:41Z")

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I'm a noob to Node Red with Home Assistant and have created an API flow that retrieves aviation weather. I parse it with the json node and am able to see all of the needed elements of the API call. What I'm struggling …

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## [Global Variable Values to a file or E-mail](https://discourse.nodered.org/t/global-variable-values-to-a-file-or-e-mail/97326)

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**Author:** [@acestu](https://discourse.nodered.org/u/acestu)\
**Replies:** 4\
**Last updated:** [30 May 2025 15:11 UTC](https://discourse.nodered.org/t/global-variable-values-to-a-file-or-e-mail/97326 "2025-05-30T15:11:42Z")

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Hi, I have now worked out how to get my sensor data stored in global variables with the change node, so how do I get all the values into a file or an email ? Thanks Stuart

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## [How to deconstruct web pages with http-request](https://discourse.nodered.org/t/how-to-deconstruct-web-pages-with-http-request/97323)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 19\
**Last updated:** [29 May 2025 14:07 UTC](https://discourse.nodered.org/t/how-to-deconstruct-web-pages-with-http-request/97323 "2025-05-29T14:07:43Z")

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This is the base line of my code: \[{"id":"dcd80a56f41caa81","type":"http request","z":"65c9b63cb09879a0","name":"","method":"GET","ret":"txt","paytoqs":"ignore","url":"","tls":"","persist":false,"proxy":"","insecureHTTP…

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## [How should I start and stop a loop with a Switch Node?](https://discourse.nodered.org/t/how-should-i-start-and-stop-a-loop-with-a-switch-node/97312)

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**Author:** [@pedro\_uno](https://discourse.nodered.org/u/pedro_uno)\
**Replies:** 3\
**Last updated:** [29 May 2025 12:29 UTC](https://discourse.nodered.org/t/how-should-i-start-and-stop-a-loop-with-a-switch-node/97312 "2025-05-29T12:29:32Z")

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Hello, I am new to Node-Red but I have a flow that controls and receives data from some instrument logic. I have a "Single Event Trigger" Button that acquires data and plots it using a Chart. I want to add a "Continuou…

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## [Change variable type?](https://discourse.nodered.org/t/change-variable-type/97321)

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**Author:** [@acestu](https://discourse.nodered.org/u/acestu)\
**Replies:** 2\
**Last updated:** [29 May 2025 10:51 UTC](https://discourse.nodered.org/t/change-variable-type/97321 "2025-05-29T10:51:18Z")

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Hi, I have some formula nodes which work out temperatures from incoming mqtt messages, in the node they say var temp1, var temp 2 etc, my question is can i change the var to global. so that the information can be harves…

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## [Http-request - new question](https://discourse.nodered.org/t/http-request-new-question/97322)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 3\
**Last updated:** [29 May 2025 10:48 UTC](https://discourse.nodered.org/t/http-request-new-question/97322 "2025-05-29T10:48:11Z")

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Although I'm getting nowhere fast with the other stuff WRT this node..... When the node is open: I'm confused. (What's new?) So the way I've been using it is the URL is FIXED. But looking at the docs (part of pic…

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## [Uibuilder instance problem](https://discourse.nodered.org/t/uibuilder-instance-problem/97254)

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**Author:** [@magicman](https://discourse.nodered.org/u/magicman)\
**Replies:** 24\
**Last updated:** [28 May 2025 19:43 UTC](https://discourse.nodered.org/t/uibuilder-instance-problem/97254 "2025-05-28T19:43:45Z")

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When i attempt to open my uibuilder instance i get this message Cannot GET /uibindex i am using the open function in uibuilder itself. if i enter 127.0.0.1:1880/project it opens correctly Anyone have any idea what i …

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## [Manage palette is missing after fresh install Node red 4.09 (Dietpi)](https://discourse.nodered.org/t/manage-palette-is-missing-after-fresh-install-node-red-4-09-dietpi/97142)

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**Author:** [@devifast](https://discourse.nodered.org/u/devifast)\
**Replies:** 20\
**Last updated:** [28 May 2025 14:55 UTC](https://discourse.nodered.org/t/manage-palette-is-missing-after-fresh-install-node-red-4-09-dietpi/97142 "2025-05-28T14:55:40Z")

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Manage palette is missing after fresh install Node red 4.09 and fresh install Dietpi. on Rpi zero2.

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## [Discovered weird caching behavior in mbus](https://discourse.nodered.org/t/discovered-weird-caching-behavior-in-mbus/97307)

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**Author:** [@ThingsTinkerer](https://discourse.nodered.org/u/ThingsTinkerer)\
**Replies:** 3\
**Last updated:** [28 May 2025 14:25 UTC](https://discourse.nodered.org/t/discovered-weird-caching-behavior-in-mbus/97307 "2025-05-28T14:25:39Z")

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Today my team discovered a weird error when polling data from M-bus. The values didn't change, and apparently haven't changed in weeks. No errors or warnings. Most likely a physical device frozen / locked up. After a res…

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## [Remote deploy feature issue from the node-red-contrib-flow-manager library](https://discourse.nodered.org/t/remote-deploy-feature-issue-from-the-node-red-contrib-flow-manager-library/97110)

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**Author:** [@bereket-09](https://discourse.nodered.org/u/bereket-09)\
**Replies:** 3\
**Last updated:** [28 May 2025 10:48 UTC](https://discourse.nodered.org/t/remote-deploy-feature-issue-from-the-node-red-contrib-flow-manager-library/97110 "2025-05-28T10:48:48Z")

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Hello, I'm currently testing the remote deploy feature from the Flow Manager library. I've configured the remote URLs as shown below, and Flow Manager is already installed and functioning on the remote destination serve…

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## [Joe-ab1do/mcp-pcf-aio install problem](https://discourse.nodered.org/t/joe-ab1do-mcp-pcf-aio-install-problem/94430)

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**Author:** [@pin32](https://discourse.nodered.org/u/pin32)\
**Replies:** 44\
**Last updated:** [27 May 2025 17:39 UTC](https://discourse.nodered.org/t/joe-ab1do-mcp-pcf-aio-install-problem/94430 "2025-05-27T17:39:04Z")

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hi, I’m trying to upgrade my hardware from pi3b to pi4, I can’t install it, every time I try the web interface disconnects and you can’t reach it anymore. I’m using the 64bit OS, previously I used on 32bit and it worked …

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## [certificate has expired settings.js](https://discourse.nodered.org/t/certificate-has-expired-settings-js/97289)

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**Author:** [@BaNod-Red](https://discourse.nodered.org/u/BaNod-Red)\
**Replies:** 1\
**Last updated:** [27 May 2025 13:19 UTC](https://discourse.nodered.org/t/certificate-has-expired-settings-js/97289 "2025-05-27T13:19:09Z")

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Hello, Do you know of any other methods to unblock TLS for transactional. In the settings js In no way solves the problem I still get the message RequestError: certificate has expired settings.js process.env.NODE\_T…

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## [Delete data of influxDB by Node Red](https://discourse.nodered.org/t/delete-data-of-influxdb-by-node-red/97285)

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**Author:** [@MFChow](https://discourse.nodered.org/u/MFChow)\
**Replies:** 3\
**Last updated:** [27 May 2025 10:59 UTC](https://discourse.nodered.org/t/delete-data-of-influxdb-by-node-red/97285 "2025-05-27T10:59:05Z")

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Hi, I would like to delete data of influxDB. I try to use curl method. I can use post man to run curl to delete data. However, it is error when i use http request node in Node Red. Any idea? Thank you for your help. …

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## [Worldmap compression 1.7.5](https://discourse.nodered.org/t/worldmap-compression-1-7-5/97281)

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**Author:** [@Roland](https://discourse.nodered.org/u/Roland)\
**Replies:** 2\
**Last updated:** [27 May 2025 08:36 UTC](https://discourse.nodered.org/t/worldmap-compression-1-7-5/97281 "2025-05-27T08:36:03Z")

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I have a question belonging to "node-red-contrib-web-worldmap": "5.1.5" I get an npm error ELSPROBLEMS invalid: compression@1.7.5 I see : worldmap dependencies -\> compression ^1.8. 0 worldmap node\_modules installed …

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## [Dashboard crash](https://discourse.nodered.org/t/dashboard-crash/97283)

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**Author:** [@Dar](https://discourse.nodered.org/u/Dar)\
**Replies:** 1\
**Last updated:** [27 May 2025 07:32 UTC](https://discourse.nodered.org/t/dashboard-crash/97283 "2025-05-27T07:32:06Z")

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Help whenever I tried to open the dashboard it kept crashing. It happened a few times a few days before but It usually work after restarting the raspberry pi but now it wont even let me open my dashboard and cr…

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## [Chart disappeared on refresh](https://discourse.nodered.org/t/chart-disappeared-on-refresh/97282)

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**Author:** [@Dar](https://discourse.nodered.org/u/Dar)\
**Replies:** 0\
**Last updated:** [27 May 2025 00:57 UTC](https://discourse.nodered.org/t/chart-disappeared-on-refresh/97282 "2025-05-27T00:57:00Z")

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Hello I need some help. I am currently using ui template to display my chart and it works just fine. But when I refresh webpage it disappeared. After Deploy After Refresh \[ { "id": "auto\_inject\_trig…

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## [Goodwe inverter](https://discourse.nodered.org/t/goodwe-inverter/96457)

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**Author:** [@RienPutmans](https://discourse.nodered.org/u/RienPutmans)\
**Replies:** 8\
**Last updated:** [26 May 2025 22:11 UTC](https://discourse.nodered.org/t/goodwe-inverter/96457 "2025-05-26T22:11:52Z")

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Is there someone who communicates directly with a Goodwe inverter in the home network? I"m fairly new to node-red and are hoping for some code to do this Greets Rien

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## [Node-RED Stopped Running but not Crashed](https://discourse.nodered.org/t/node-red-stopped-running-but-not-crashed/97180)

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**Author:** [@ajisindhu9](https://discourse.nodered.org/u/ajisindhu9)\
**Replies:** 27\
**Last updated:** [26 May 2025 03:30 UTC](https://discourse.nodered.org/t/node-red-stopped-running-but-not-crashed/97180 "2025-05-26T03:30:57Z")

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Hello, I run Node-RED on a Windows Server 2019, the node-red stopped running, the terminal not shown any crashes but when I access the node-red from browser, it won't load, and my programs that use node-red also not runn…

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## [Flow for heating solution for job interview](https://discourse.nodered.org/t/flow-for-heating-solution-for-job-interview/97266)

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**Author:** [@BraCra](https://discourse.nodered.org/u/BraCra)\
**Replies:** 10\
**Last updated:** [25 May 2025 21:26 UTC](https://discourse.nodered.org/t/flow-for-heating-solution-for-job-interview/97266 "2025-05-25T21:26:20Z")

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Hello there - i funnily enough came to Node Red via a job offer where i'm asked to simulate/add to a flow. I primarily need to present it as a way how i'd get it to run, but better would be to get a running JSON (request…

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## [Reolink - set state/scene](https://discourse.nodered.org/t/reolink-set-state-scene/97253)

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**Author:** [@JJdave](https://discourse.nodered.org/u/JJdave)\
**Replies:** 2\
**Last updated:** [25 May 2025 04:55 UTC](https://discourse.nodered.org/t/reolink-set-state-scene/97253 "2025-05-25T04:55:08Z")

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Hi, I am struggling changing some scenes given by the integration Reolink in Home Assistant. Could read the scence as attributes (see screen shot) but do not know how to change them. Any idea how to do that with node r…

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## [How to use ESM only modules in Custom Nodes?](https://discourse.nodered.org/t/how-to-use-esm-only-modules-in-custom-nodes/97240)

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**Author:** [@AllanOricil](https://discourse.nodered.org/u/AllanOricil)\
**Replies:** 4\
**Last updated:** [24 May 2025 20:08 UTC](https://discourse.nodered.org/t/how-to-use-esm-only-modules-in-custom-nodes/97240 "2025-05-24T20:08:04Z")

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Because aws-cdk-lib v2 is esm only, the only way I was able to make Node-RED load it was using esbuild to bundle it together with my authored source code. Is there another option? When I configure esbuild to avoid bundl…

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## [Help with subflows and node-status.... Looking for ideas](https://discourse.nodered.org/t/help-with-subflows-and-node-status-looking-for-ideas/97248)

<div class="topic-metadata">

**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 2\
**Last updated:** [24 May 2025 09:39 UTC](https://discourse.nodered.org/t/help-with-subflows-and-node-status-looking-for-ideas/97248 "2025-05-24T09:39:44Z")

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Sorry folks, something has got my curiosity going and it is kind of annoying. :wink: I got STUNG today re-writing code from 8 years ago (or there about). I was using a function node as a gate, but with a bit more comp…

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## [Modbus Read and Write float32 values - Precision issue or setup issue](https://discourse.nodered.org/t/modbus-read-and-write-float32-values-precision-issue-or-setup-issue/97205)

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**Author:** [@BambosD](https://discourse.nodered.org/u/BambosD)\
**Replies:** 2\
**Last updated:** [24 May 2025 08:29 UTC](https://discourse.nodered.org/t/modbus-read-and-write-float32-values-precision-issue-or-setup-issue/97205 "2025-05-24T08:29:03Z")

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Dear everyone, I'm working on a node to achieve float32 values read and write based on IEEE754 (real type on PLC's) So i have a flow to inject a float value in buffer parser and then parser maker to split that into 2 w…

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## [Pentair Intellicenter](https://discourse.nodered.org/t/pentair-intellicenter/97247)

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**Author:** [@k5map](https://discourse.nodered.org/u/k5map)\
**Replies:** 0\
**Last updated:** [24 May 2025 07:18 UTC](https://discourse.nodered.org/t/pentair-intellicenter/97247 "2025-05-24T07:18:29Z")

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Has anyone successfully interfaced Node-Red with Pentair Intellicenter pool controller?

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