# Latest

**URL:** https://discourse.nodered.org/latest.md?page=201

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

**Page:** 202

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## [Why does concat give back empty value?](https://discourse.nodered.org/t/why-does-concat-give-back-empty-value/87617)

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**Author:** [@novski](https://discourse.nodered.org/u/novski)\
**Replies:** 10\
**Last updated:** [30 April 2024 21:10 UTC](https://discourse.nodered.org/t/why-does-concat-give-back-empty-value/87617 "2024-04-30T21:10:49Z")

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This .concat function does not work. let device = {"spot1":{"value": \[1,1\] }}; let k = "spot1"; let value = \[\]; node.warn("value:" + value + ", typeof value:" + typeof value); if (typeof device\[k\].value === 'number') { …

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## [Dashboard 2 - Form - New FR](https://discourse.nodered.org/t/dashboard-2-form-new-fr/87570)

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**Author:** [@SandeepA](https://discourse.nodered.org/u/SandeepA)\
**Replies:** 4\
**Last updated:** [30 April 2024 20:43 UTC](https://discourse.nodered.org/t/dashboard-2-form-new-fr/87570 "2024-04-30T20:43:36Z")

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Hi Is it possible to consider below 2 Feature Requests for the current Form Node 1 Allow option to add DropDown as an element. User may define comma separated options - or send them via. msg. This would make the Form …

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## [Need help with huemagic](https://discourse.nodered.org/t/need-help-with-huemagic/87596)

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**Author:** [@aredhone](https://discourse.nodered.org/u/aredhone)\
**Replies:** 6\
**Last updated:** [30 April 2024 19:58 UTC](https://discourse.nodered.org/t/need-help-with-huemagic/87596 "2024-04-30T19:58:25Z")

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so here i am again most posible asking you guys aa easy quistion i have trouble setting up somthing that recieves a singnal of my hue dot and do somthing with it i got \[{"id":"79f1f61985718e40","type":"debug","z":"d5d…

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## [Error loading settings file: /data/settings.js](https://discourse.nodered.org/t/error-loading-settings-file-data-settings-js/87608)

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**Author:** [@Mil05h](https://discourse.nodered.org/u/Mil05h)\
**Replies:** 7\
**Last updated:** [30 April 2024 16:02 UTC](https://discourse.nodered.org/t/error-loading-settings-file-data-settings-js/87608 "2024-04-30T16:02:26Z")

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Hi, I have issues to run node-red locally using docker-compose up. My colleagues are using Mac and Linux and can run the remote repo locally. I am using Windows, and am getting this error: Attaching to nodered-1 nodered…

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## [FlowFuse Platform Update](https://discourse.nodered.org/t/flowfuse-platform-update/87081)

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**Author:** [@gdziuba](https://discourse.nodered.org/u/gdziuba)\
**Replies:** 6\
**Last updated:** [30 April 2024 14:18 UTC](https://discourse.nodered.org/t/flowfuse-platform-update/87081 "2024-04-30T14:18:29Z")

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Hey everyone. We are hosting a webinar looking back on the last 3 years of FlowFuse and doing a platform update highlighting some of the latest features at the end of the month on April 30th.

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## [Uibuilder + react](https://discourse.nodered.org/t/uibuilder-react/87573)

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**Author:** [@EchoSmith](https://discourse.nodered.org/u/EchoSmith)\
**Replies:** 5\
**Last updated:** [30 April 2024 13:32 UTC](https://discourse.nodered.org/t/uibuilder-react/87573 "2024-04-30T13:32:16Z")

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Hello, I am trying to setup React with node-red using uibuilder and have been following this guide. But it seems to fail the build process and cannot locate the uibuilderfe module. I check the folder and it is locate…

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## [Why does that dynamic selector select both spotlights?](https://discourse.nodered.org/t/why-does-that-dynamic-selector-select-both-spotlights/87610)

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**Author:** [@novski](https://discourse.nodered.org/u/novski)\
**Replies:** 5\
**Last updated:** [30 April 2024 12:49 UTC](https://discourse.nodered.org/t/why-does-that-dynamic-selector-select-both-spotlights/87610 "2024-04-30T12:49:42Z")

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Hi I use a dynamic selector to pick my device in a flow object by name. But it changes the offset values of all devices. let init = { "offset": 0 } let spotlights = flow.get("spotlights") ?? flow.set("spotlights",…

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## [Someone with experience with REDIS subscribing?](https://discourse.nodered.org/t/someone-with-experience-with-redis-subscribing/87561)

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**Author:** [@JeromeVISUALS](https://discourse.nodered.org/u/JeromeVISUALS)\
**Replies:** 11\
**Last updated:** [30 April 2024 12:41 UTC](https://discourse.nodered.org/t/someone-with-experience-with-redis-subscribing/87561 "2024-04-30T12:41:19Z")

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Hi, I have no experience with REDIS yet, but for one of my flows I need to subscribe to a REDIS . I tried this : https://flows.nodered.org/node/node-red-v4-contrib-redis And loaded the example flow, but everything I g…

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## [Ui-template set httpstatic for dashboard 2](https://discourse.nodered.org/t/ui-template-set-httpstatic-for-dashboard-2/87591)

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**Author:** [@denissanga](https://discourse.nodered.org/u/denissanga)\
**Replies:** 7\
**Last updated:** [30 April 2024 12:20 UTC](https://discourse.nodered.org/t/ui-template-set-httpstatic-for-dashboard-2/87591 "2024-04-30T12:20:35Z")

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Hi all, I'm trying using dashboard2 and I would understand where locate the external javascript scripts for dashboard 1 I set httpstatic path in the setting file adding the folder where my script are located in "/static…

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## [Create mapping template node](https://discourse.nodered.org/t/create-mapping-template-node/87452)

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**Author:** [@mstoffel-sag](https://discourse.nodered.org/u/mstoffel-sag)\
**Replies:** 3\
**Last updated:** [30 April 2024 09:32 UTC](https://discourse.nodered.org/t/create-mapping-template-node/87452 "2024-04-30T09:32:14Z")

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Hi experts, I'm quite new to NodeRed development. I try to implement an integration for a Rest API that requires a specific json payload. I would like to create my own node that allows to map certain fields in that json…

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## [Not sure what the blue squares below the delay node is](https://discourse.nodered.org/t/not-sure-what-the-blue-squares-below-the-delay-node-is/87599)

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**Author:** [@bostonareahuman](https://discourse.nodered.org/u/bostonareahuman)\
**Replies:** 1\
**Last updated:** [29 April 2024 21:58 UTC](https://discourse.nodered.org/t/not-sure-what-the-blue-squares-below-the-delay-node-is/87599 "2024-04-29T21:58:11Z")

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So there is the blue square with 0 next to it....not sure what the 0 means and why the blue square is just hanging out...

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## [Is this a side effect of the PWA functionality?](https://discourse.nodered.org/t/is-this-a-side-effect-of-the-pwa-functionality/87544)

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**Author:** [@Colin](https://discourse.nodered.org/u/Colin)\
**Replies:** 22\
**Last updated:** [29 April 2024 20:27 UTC](https://discourse.nodered.org/t/is-this-a-side-effect-of-the-pwa-functionality/87544 "2024-04-29T20:27:00Z")

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Since 1.8.0 of Dashboard 2 I notice that the home screen shortcut to the dashboard on my Android phone, created using Add to Home Screen in the Brave browser no longer works, it just shows a blank screen. If I browse to…

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## [Ui-template: javascript to run function when a global var define in script changes](https://discourse.nodered.org/t/ui-template-javascript-to-run-function-when-a-global-var-define-in-script-changes/87578)

<div class="topic-metadata">

**Author:** [@denissanga](https://discourse.nodered.org/u/denissanga)\
**Replies:** 3\
**Last updated:** [29 April 2024 17:18 UTC](https://discourse.nodered.org/t/ui-template-javascript-to-run-function-when-a-global-var-define-in-script-changes/87578 "2024-04-29T17:18:01Z")

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Hi all, I'm writing a script in ui-template and I defined a global var. I would like to add a function which is called when the global var change \<script type="text/javascript"\> var generic; function sendMessag…

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## [Vertical alignment of ui-template widgets in dashboard](https://discourse.nodered.org/t/vertical-alignment-of-ui-template-widgets-in-dashboard/87545)

<div class="topic-metadata">

**Author:** [@Colin](https://discourse.nodered.org/u/Colin)\
**Replies:** 4\
**Last updated:** [29 April 2024 15:07 UTC](https://discourse.nodered.org/t/vertical-alignment-of-ui-template-widgets-in-dashboard/87545 "2024-04-29T15:07:05Z")

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I have a v-switch in a ui-template. Defined using \<template\> \<div\> \<v-switch label="Template switch"\> \</v-switch\> \</div\> \</template\> with no particular styling applied. Alongside I have a core…

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## [In Change Node, setting output of mySQL node to Flow.Context gives "\[object Object\]"](https://discourse.nodered.org/t/in-change-node-setting-output-of-mysql-node-to-flow-context-gives-object-object/87580)

<div class="topic-metadata">

**Author:** [@IanH](https://discourse.nodered.org/u/IanH)\
**Replies:** 11\
**Last updated:** [29 April 2024 13:43 UTC](https://discourse.nodered.org/t/in-change-node-setting-output-of-mysql-node-to-flow-context-gives-object-object/87580 "2024-04-29T13:43:57Z")

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I am trying to store the output of a node-red-node-mysql mysql node into a flow Context variable to aid verification and debuging (I keep missing output in debug pane as they only occur every 10 minutes or so). But all…

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## [How to Update Device Agent Version In Scale](https://discourse.nodered.org/t/how-to-update-device-agent-version-in-scale/87260)

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**Author:** [@Anmirazik](https://discourse.nodered.org/u/Anmirazik)\
**Replies:** 1\
**Last updated:** [29 April 2024 11:11 UTC](https://discourse.nodered.org/t/how-to-update-device-agent-version-in-scale/87260 "2024-04-29T11:11:46Z")

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Hi , I would like to have some suggestions on how can we update the device agent automatically and in scale ? I saw that the device agent are being developed quite extensively on github and being release quite frequent …

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## [Dashboard Form Bugs](https://discourse.nodered.org/t/dashboard-form-bugs/87584)

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**Author:** [@xty19](https://discourse.nodered.org/u/xty19)\
**Replies:** 2\
**Last updated:** [29 April 2024 09:55 UTC](https://discourse.nodered.org/t/dashboard-form-bugs/87584 "2024-04-29T09:55:08Z")

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node-red-dashboard 3.6.5 node-red 3.1.9 I want to use the form component to select a time range, such as selecting a time range between 12:00 on April 27, 2024 and 12:30 on April 27, 2024. If the form of dashboard …

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## [Updated coding window node-red editor](https://discourse.nodered.org/t/updated-coding-window-node-red-editor/87576)

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**Author:** [@verkerkGIT](https://discourse.nodered.org/u/verkerkGIT)\
**Replies:** 2\
**Last updated:** [29 April 2024 08:18 UTC](https://discourse.nodered.org/t/updated-coding-window-node-red-editor/87576 "2024-04-29T08:18:38Z")

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Hi, when I install node-red on a raspberry pi, or some other devices I get a neat code editor with autocomplete, code hints etc, kind of like a Visual Studio environment. However on my main machine I only have a older lo…

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## [Use dynamic context based variable in change node for setting a variable](https://discourse.nodered.org/t/use-dynamic-context-based-variable-in-change-node-for-setting-a-variable/87519)

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**Author:** [@psmtvdw](https://discourse.nodered.org/u/psmtvdw)\
**Replies:** 4\
**Last updated:** [29 April 2024 06:02 UTC](https://discourse.nodered.org/t/use-dynamic-context-based-variable-in-change-node-for-setting-a-variable/87519 "2024-04-29T06:02:44Z")

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I have a subflow, inside this subflow I want to use the value of an env variable of this subflow in a change node to write a global variable This is how it looks like (and works succesfully) in a function node: global.…

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## [Node "delay" doesn't work as expected anymore](https://discourse.nodered.org/t/node-delay-doesnt-work-as-expected-anymore/87568)

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**Author:** [@cairon](https://discourse.nodered.org/u/cairon)\
**Replies:** 5\
**Last updated:** [28 April 2024 23:08 UTC](https://discourse.nodered.org/t/node-delay-doesnt-work-as-expected-anymore/87568 "2024-04-28T23:08:23Z")

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Hi there, I have an automation to turn on my coffee machine. I am using a motion sensor in the kitchen for that. The idea was that the coffee machine gets power when I am entering the kitchen for the first time a day. …

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## [Dashboard v2 v-edit-dialog on template table](https://discourse.nodered.org/t/dashboard-v2-v-edit-dialog-on-template-table/87571)

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**Author:** [@aym](https://discourse.nodered.org/u/aym)\
**Replies:** 0\
**Last updated:** [28 April 2024 20:52 UTC](https://discourse.nodered.org/t/dashboard-v2-v-edit-dialog-on-template-table/87571 "2024-04-28T20:52:08Z")

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Im testing dashboard v2 template table , and have not idea why i cannot see column that can be editable via snackbar with v-edit-dialog witch looks kinda cool, this is my code attempt so i give up with puting v-text-fiel…

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## [Nice(?) and cheap ESP32+Colour display](https://discourse.nodered.org/t/nice-and-cheap-esp32-colour-display/82413)

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**Author:** [@TotallyInformation](https://discourse.nodered.org/u/TotallyInformation)\
**Replies:** 117\
**Last updated:** [28 April 2024 18:05 UTC](https://discourse.nodered.org/t/nice-and-cheap-esp32-colour-display/82413 "2024-04-28T18:05:23Z")

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Looking for a project for Christmas? :slight\_smile: Just seen this video from Brian Lough about a low-cost ESP32 + Colour screen device from Ali Express. He is participating in a community effort to get some solid docum…

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## [Pass the name of a database table into a function?](https://discourse.nodered.org/t/pass-the-name-of-a-database-table-into-a-function/87560)

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**Author:** [@questuk](https://discourse.nodered.org/u/questuk)\
**Replies:** 8\
**Last updated:** [28 April 2024 16:40 UTC](https://discourse.nodered.org/t/pass-the-name-of-a-database-table-into-a-function/87560 "2024-04-28T16:40:20Z")

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Hi I am uploading data from Node-RED to my PostgreSQL database via a function. Currently i have to change the INSERT INTO table in this function, what I would like to do is pass the table into this function via msg.tab…

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## [Getting the rain amount with OpenWeather](https://discourse.nodered.org/t/getting-the-rain-amount-with-openweather/87567)

<div class="topic-metadata">

**Author:** [@alveron](https://discourse.nodered.org/u/alveron)\
**Replies:** 2\
**Last updated:** [28 April 2024 15:35 UTC](https://discourse.nodered.org/t/getting-the-rain-amount-with-openweather/87567 "2024-04-28T15:35:09Z")

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Working with the openweather API and am trying to get the precipitation forecasted in the next 24h. The forecast message gives you the expected rain in three hour chunks so using a function to sum this should do the tri…

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## [How to use serial port control node](https://discourse.nodered.org/t/how-to-use-serial-port-control-node/87564)

<div class="topic-metadata">

**Author:** [@ALOKA1432](https://discourse.nodered.org/u/ALOKA1432)\
**Replies:** 1\
**Last updated:** [28 April 2024 14:37 UTC](https://discourse.nodered.org/t/how-to-use-serial-port-control-node/87564 "2024-04-28T14:37:05Z")

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How can i use serial port control node to change the port and other parameters on the fly. Kindly help someone.

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## [Send msg.payload from ui template to nodered](https://discourse.nodered.org/t/send-msg-payload-from-ui-template-to-nodered/87340)

<div class="topic-metadata">

**Author:** [@denissanga](https://discourse.nodered.org/u/denissanga)\
**Replies:** 16\
**Last updated:** [28 April 2024 14:16 UTC](https://discourse.nodered.org/t/send-msg-payload-from-ui-template-to-nodered/87340 "2024-04-28T14:16:53Z")

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hi all, I have a ui template with some javascript function i would like return a value to node-red \<script type="text/javascript"\> function onQRCodeScanned(scannedText) { var scannedTextM…

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## [How to change storage path influxdb2](https://discourse.nodered.org/t/how-to-change-storage-path-influxdb2/87538)

<div class="topic-metadata">

**Author:** [@Gravino](https://discourse.nodered.org/u/Gravino)\
**Replies:** 13\
**Last updated:** [28 April 2024 14:11 UTC](https://discourse.nodered.org/t/how-to-change-storage-path-influxdb2/87538 "2024-04-28T14:11:26Z")

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hello every one, i'm running node-red with influxdb2 opcua connect to Siemen Plc, everything working good, but now i need to change the path to save my influxdb data, i installed influxdb using powershell, i don't know …

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## [NodeRed and Alexa for dialogues](https://discourse.nodered.org/t/nodered-and-alexa-for-dialogues/87363)

<div class="topic-metadata">

**Author:** [@Gnomi](https://discourse.nodered.org/u/Gnomi)\
**Replies:** 9\
**Last updated:** [28 April 2024 12:48 UTC](https://discourse.nodered.org/t/nodered-and-alexa-for-dialogues/87363 "2024-04-28T12:48:01Z")

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Hi, I am using node-red-contrib-alexa-remote2-applestrudel to play announcements or prompts for different automatic or via my alexa skill requested information from the home environment, mainly from Homematic. I now wa…

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## [Project of vehicle using node red](https://discourse.nodered.org/t/project-of-vehicle-using-node-red/87558)

<div class="topic-metadata">

**Author:** [@Ndolothom](https://discourse.nodered.org/u/Ndolothom)\
**Replies:** 1\
**Last updated:** [27 April 2024 22:26 UTC](https://discourse.nodered.org/t/project-of-vehicle-using-node-red/87558 "2024-04-27T22:26:53Z")

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## [Home Assistant + NodeRED logic when several devices have different values](https://discourse.nodered.org/t/home-assistant-nodered-logic-when-several-devices-have-different-values/87553)

<div class="topic-metadata">

**Author:** [@SNR93](https://discourse.nodered.org/u/SNR93)\
**Replies:** 5\
**Last updated:** [27 April 2024 18:40 UTC](https://discourse.nodered.org/t/home-assistant-nodered-logic-when-several-devices-have-different-values/87553 "2024-04-27T18:40:12Z")

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I ask for help in implementing the following logic: device - status my phone is home wife's phone - not home child's phone - not home if devices have exactly these states, then there should be an output from the nod…

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