# Latest

**URL:** https://discourse.nodered.org/latest.md?page=927

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

**Page:** 928

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## [Trigger on USB Drive Insertion - Raspberry Pi](https://discourse.nodered.org/t/trigger-on-usb-drive-insertion-raspberry-pi/19096)

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**Author:** [@jeff8houses](https://discourse.nodered.org/u/jeff8houses)\
**Replies:** 11\
**Last updated:** [23 December 2020 09:28 UTC](https://discourse.nodered.org/t/trigger-on-usb-drive-insertion-raspberry-pi/19096 "2020-12-23T09:28:32Z")

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Hey friends! I'm working on a Node-RED Pi Zero project and am looking for a way to monitor when a USB drive is plugged in. The aim is to auto-copy a bunch of files when a drive is inserted then unmount the drive. Copying…

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## [MQTT with Arduino Nano + NodeRed](https://discourse.nodered.org/t/mqtt-with-arduino-nano-nodered/37351)

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**Author:** [@PizzaProgram](https://discourse.nodered.org/u/PizzaProgram)\
**Replies:** 23\
**Last updated:** [23 December 2020 09:13 UTC](https://discourse.nodered.org/t/mqtt-with-arduino-nano-nodered/37351 "2020-12-23T09:13:40Z")

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Continuing the discussion from Arduino i2c Firmata: Is there any way to connect Arduino NANO boards to handle I/O + Analog (+ I2C ?) through NodeRed? Important: NANO has ONLY a USB port! ... so most of the MQTT librar…

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## [Side tab menu at the bottom and/or on the top](https://discourse.nodered.org/t/side-tab-menu-at-the-bottom-and-or-on-the-top/37233)

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**Author:** [@noBody](https://discourse.nodered.org/u/noBody)\
**Replies:** 11\
**Last updated:** [22 December 2020 20:36 UTC](https://discourse.nodered.org/t/side-tab-menu-at-the-bottom-and-or-on-the-top/37233 "2020-12-22T20:36:06Z")

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Hi, is there a way to put left side menu of tabs on the top or at the bottom of page?

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## [Beta testing - Remote-RED: Remote Access and Push Notifications](https://discourse.nodered.org/t/beta-testing-remote-red-remote-access-and-push-notifications/35866)

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**Author:** [@Thorsten](https://discourse.nodered.org/u/Thorsten)\
**Replies:** 3\
**Last updated:** [23 December 2020 07:44 UTC](https://discourse.nodered.org/t/beta-testing-remote-red-remote-access-and-push-notifications/35866 "2020-12-23T07:44:35Z")

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Hi everyone, three months ago I switched from OpenHAB to Node-RED and was impressed after the first minutes. But directly on this weekend I searched but did not found a possibility to use my smartphone to control my dev…

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## [Nodejs version in node-RED docker container](https://discourse.nodered.org/t/nodejs-version-in-node-red-docker-container/37901)

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**Author:** [@augjoh](https://discourse.nodered.org/u/augjoh)\
**Replies:** 0\
**Last updated:** [23 December 2020 05:57 UTC](https://discourse.nodered.org/t/nodejs-version-in-node-red-docker-container/37901 "2020-12-23T05:57:55Z")

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Hi there, I've written a little Node-Red project, that relies on the docker container of Node-Red. I would like to upgrade to a newer nodejs version. Currently I'm using nodejs version 10 (slim). How can I update to the …

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## [Change Text Label via UI Button](https://discourse.nodered.org/t/change-text-label-via-ui-button/37812)

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**Author:** [@hawks76](https://discourse.nodered.org/u/hawks76)\
**Replies:** 8\
**Last updated:** [23 December 2020 02:47 UTC](https://discourse.nodered.org/t/change-text-label-via-ui-button/37812 "2020-12-23T02:47:37Z")

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Pretty new to Node-Red. I know it's probably a rookie mistake causing this, but i can't figure it out. Trying to set the label of a button based on a global variable (that is being stored in a file). Also wanting to c…

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## [Adding login to ui dashboard as flow page?](https://discourse.nodered.org/t/adding-login-to-ui-dashboard-as-flow-page/37770)

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**Author:** [@halukmy](https://discourse.nodered.org/u/halukmy)\
**Replies:** 8\
**Last updated:** [22 December 2020 22:20 UTC](https://discourse.nodered.org/t/adding-login-to-ui-dashboard-as-flow-page/37770 "2020-12-22T22:20:31Z")

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Greetings everybody, i am now using this login, but this not works on /ui how can i add this security to ui too?

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## [\[feature request\] middleware integration](https://discourse.nodered.org/t/feature-request-middleware-integration/37890)

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**Author:** [@kevinGodell](https://discourse.nodered.org/u/kevinGodell)\
**Replies:** 1\
**Last updated:** [22 December 2020 22:08 UTC](https://discourse.nodered.org/t/feature-request-middleware-integration/37890 "2020-12-22T22:08:36Z")

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I would like to add the feature that will allow the middleware(s) configured in settings.js for httpAdminMiddleware and ui.middleware to allow for an array of functions instead of just a single function. This will make …

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## [How to dynamically set HTML attribute value using UI template mustache syntax?](https://discourse.nodered.org/t/how-to-dynamically-set-html-attribute-value-using-ui-template-mustache-syntax/37860)

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**Author:** [@Herold](https://discourse.nodered.org/u/Herold)\
**Replies:** 4\
**Last updated:** [22 December 2020 21:22 UTC](https://discourse.nodered.org/t/how-to-dynamically-set-html-attribute-value-using-ui-template-mustache-syntax/37860 "2020-12-22T21:22:30Z")

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I've tried to set dynamically UI template button onclick attribute value using mustache syntax (myfunction is intended to be executed in browser). I've got parse syntax error, any hints ? Thank's Function node: msg.m…

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## [Using fa-icon in template node](https://discourse.nodered.org/t/using-fa-icon-in-template-node/6767)

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**Author:** [@cpaolojo](https://discourse.nodered.org/u/cpaolojo)\
**Replies:** 7\
**Last updated:** [22 December 2020 20:13 UTC](https://discourse.nodered.org/t/using-fa-icon-in-template-node/6767 "2020-12-22T20:13:06Z")

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hi all. I would use some fa-icons in my template node but I have 2 Problems: where could I find the complete list of the fa-icon? could you show me an example of template node code wich uses fa-icon? thanks a lot Pa…

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## [Horizontal line in card - (small contribution)](https://discourse.nodered.org/t/horizontal-line-in-card-small-contribution/37847)

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**Author:** [@Tomadoggy](https://discourse.nodered.org/u/Tomadoggy)\
**Replies:** 1\
**Last updated:** [22 December 2020 18:33 UTC](https://discourse.nodered.org/t/horizontal-line-in-card-small-contribution/37847 "2020-12-22T18:33:23Z")

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I have come across a few topics where users are attempting to place a horizontal line in their UI. I myself had this need so messed around with a \</\>template node and some HTML. There could be better ways, but this is …

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## [Integrating an angular app in node properties, TypeError: $(...).i18n](https://discourse.nodered.org/t/integrating-an-angular-app-in-node-properties-typeerror-i18n/37718)

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**Author:** [@Kib](https://discourse.nodered.org/u/Kib)\
**Replies:** 8\
**Last updated:** [22 December 2020 18:12 UTC](https://discourse.nodered.org/t/integrating-an-angular-app-in-node-properties-typeerror-i18n/37718 "2020-12-22T18:12:43Z")

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I have built a couple of custom nodes (mostly using the default settings and not anything fancy) and i just tried the following to serve an existing compiled angular application inside the node-properties HTML. the new h…

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## [Energy calculation](https://discourse.nodered.org/t/energy-calculation/11851)

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**Author:** [@Pisti](https://discourse.nodered.org/u/Pisti)\
**Replies:** 5\
**Last updated:** [22 December 2020 17:29 UTC](https://discourse.nodered.org/t/energy-calculation/11851 "2020-12-22T17:29:33Z")

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Hi all. I try to work out how to make a function javascript to calculate cost ow energy. I have daily data coming through mqtt, which is zero itself every day at 00:00 I managed to store the data to the flow, and I mana…

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## [Squeezebox "socket hang up"](https://discourse.nodered.org/t/squeezebox-socket-hang-up/37875)

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**Author:** [@oma](https://discourse.nodered.org/u/oma)\
**Replies:** 3\
**Last updated:** [22 December 2020 17:25 UTC](https://discourse.nodered.org/t/squeezebox-socket-hang-up/37875 "2020-12-22T17:25:32Z")

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I was trying to add my squeezeboxes to NodeRED, and some commands like pause, status etc do work already. I would like to have a dedicated webstream played after pushing a button but i do get a "socket hang up" and i hav…

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## [Uncaught ReferenceError: require is not defined](https://discourse.nodered.org/t/uncaught-referenceerror-require-is-not-defined/37868)

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**Author:** [@GowriAradhya](https://discourse.nodered.org/u/GowriAradhya)\
**Replies:** 10\
**Last updated:** [22 December 2020 16:44 UTC](https://discourse.nodered.org/t/uncaught-referenceerror-require-is-not-defined/37868 "2020-12-22T16:44:25Z")

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How to install require and CryptoJS module in nodered?? When starting node-red i am not getting any errors. While launching i am getting Uncaught ReferenceError: require is not defined in the console. I tried to insta…

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## [Socket ID of the dashboard](https://discourse.nodered.org/t/socket-id-of-the-dashboard/37867)

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**Author:** [@Becker](https://discourse.nodered.org/u/Becker)\
**Replies:** 1\
**Last updated:** [22 December 2020 14:31 UTC](https://discourse.nodered.org/t/socket-id-of-the-dashboard/37867 "2020-12-22T14:31:55Z")

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Hi, can I affect the socketid ? =\> "IP:1880/ui/#!/0?socketid=AnUFbQQ1zxQzKf9sAAAL" can I change "AnUFbQQ1zxQzKf9sAAAL" to a name that I determine ? where is the ID set ? Greetings

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## [Look in payload for a specific string of text](https://discourse.nodered.org/t/look-in-payload-for-a-specific-string-of-text/37864)

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**Author:** [@nappyjim](https://discourse.nodered.org/u/nappyjim)\
**Replies:** 3\
**Last updated:** [22 December 2020 14:22 UTC](https://discourse.nodered.org/t/look-in-payload-for-a-specific-string-of-text/37864 "2020-12-22T14:22:38Z")

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I'm an idiot,figured it out. Hi guys, I'm a home assistant user, just beginning my journey with Node red. I know home assistant node red isnt quite the same, but I think my question is relevant for both. Quite simp…

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## [Persistent context storage](https://discourse.nodered.org/t/persistent-context-storage/37858)

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**Author:** [@FatPilot](https://discourse.nodered.org/u/FatPilot)\
**Replies:** 4\
**Last updated:** [22 December 2020 13:52 UTC](https://discourse.nodered.org/t/persistent-context-storage/37858 "2020-12-22T13:52:59Z")

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Hi everyone, What a really great feature! I put this into my settings.js file, I only need it to update every 10 minutes. I wish there was more info on this. A couple of questions for you..... Have I done it correc…

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## [Unix mint file access denied](https://discourse.nodered.org/t/unix-mint-file-access-denied/37839)

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**Author:** [@juntiedt](https://discourse.nodered.org/u/juntiedt)\
**Replies:** 6\
**Last updated:** [22 December 2020 11:52 UTC](https://discourse.nodered.org/t/unix-mint-file-access-denied/37839 "2020-12-22T11:52:28Z")

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I ported a flow from a raspi to a pc running unix mint. I get the below error when acessing this CSV file. Error: EACCES: permission denied, open '/home/hannes/standard-temp.CSV' The file has read and write access ena…

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## [REDIS - global.get results in the ERROR](https://discourse.nodered.org/t/redis-global-get-results-in-the-error/37857)

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**Author:** [@Tombcat](https://discourse.nodered.org/u/Tombcat)\
**Replies:** 2\
**Last updated:** [22 December 2020 10:52 UTC](https://discourse.nodered.org/t/redis-global-get-results-in-the-error/37857 "2020-12-22T10:52:58Z")

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Hello I have changed the default context storage to the REDIS. Configuration: contextStorage: { redis: { module: require("node-red-context-redis"), config: { host: "\*\*, po…

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## [Keeping DMX Alive in NR](https://discourse.nodered.org/t/keeping-dmx-alive-in-nr/37870)

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**Author:** [@CarloJongen](https://discourse.nodered.org/u/CarloJongen)\
**Replies:** 0\
**Last updated:** [22 December 2020 08:26 UTC](https://discourse.nodered.org/t/keeping-dmx-alive-in-nr/37870 "2020-12-22T08:26:55Z")

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When I'm looking for a solution to make a simple "DMX-512 out" I really can't find anything that is up to date. Is there no solution without having to revert to older versions of NR or downgrading depending modules? Is …

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## [How to create notification email from data excel](https://discourse.nodered.org/t/how-to-create-notification-email-from-data-excel/37822)

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**Author:** [@Dwienov](https://discourse.nodered.org/u/Dwienov)\
**Replies:** 3\
**Last updated:** [22 December 2020 07:50 UTC](https://discourse.nodered.org/t/how-to-create-notification-email-from-data-excel/37822 "2020-12-22T07:50:24Z")

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Please help me, I'm beginner learning node red currently I'm looking for solution below How to create notification email from data schedule maintenance in excel when due to execution,

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## [HomeLink Car Integrations to NodeRed](https://discourse.nodered.org/t/homelink-car-integrations-to-nodered/37823)

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**Author:** [@Meptik](https://discourse.nodered.org/u/Meptik)\
**Replies:** 1\
**Last updated:** [22 December 2020 06:55 UTC](https://discourse.nodered.org/t/homelink-car-integrations-to-nodered/37823 "2020-12-22T06:55:58Z")

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Hey all - I've been researching integrations from HomeLink - the buttons found in most cars to control garage doors - to NodeRed. As I don't have a garage, I had been thinking that I could use it to further control the…

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## [For the UIbuilder node, where are the index source files?](https://discourse.nodered.org/t/for-the-uibuilder-node-where-are-the-index-source-files/37663)

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**Author:** [@adamelli](https://discourse.nodered.org/u/adamelli)\
**Replies:** 18\
**Last updated:** [21 December 2020 23:12 UTC](https://discourse.nodered.org/t/for-the-uibuilder-node-where-are-the-index-source-files/37663 "2020-12-21T23:12:07Z")

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Every example I import into Node-RED, I get the same UIbuilder webpage (unless the index files are edited). I just want to see another simple webpage example like Quote of the Day.

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## [Dashboard dropdown for setting who gets a message](https://discourse.nodered.org/t/dashboard-dropdown-for-setting-who-gets-a-message/37668)

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**Author:** [@OrluckIndBJ](https://discourse.nodered.org/u/OrluckIndBJ)\
**Replies:** 2\
**Last updated:** [21 December 2020 21:08 UTC](https://discourse.nodered.org/t/dashboard-dropdown-for-setting-who-gets-a-message/37668 "2020-12-21T21:08:52Z")

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I am trying to use a dropdown in the dashboard to set who will receive an email message when the machine has an error. I have the drop down populated with some names and when I select one it will send a message immediate…

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## [Ui Builder learning reference](https://discourse.nodered.org/t/ui-builder-learning-reference/37775)

<div class="topic-metadata">

**Author:** [@lizzardguki](https://discourse.nodered.org/u/lizzardguki)\
**Replies:** 8\
**Last updated:** [21 December 2020 21:06 UTC](https://discourse.nodered.org/t/ui-builder-learning-reference/37775 "2020-12-21T21:06:16Z")

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From where should a noob start learning vue.js for the sole purpose of using it in node-red?

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## [Serial Port RS485 question](https://discourse.nodered.org/t/serial-port-rs485-question/37817)

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**Author:** [@Becker](https://discourse.nodered.org/u/Becker)\
**Replies:** 11\
**Last updated:** [21 December 2020 18:43 UTC](https://discourse.nodered.org/t/serial-port-rs485-question/37817 "2020-12-21T18:43:54Z")

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Hello, I wanted to update my Raspberry Pi to the newest Buster + Node RED, but I have a problem to activate the "NibePi Master" (https://github.com/anerdins/node-red-contrib-nibepi/ ) in Node RED using a RS485 hat: -…

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## [Using NR with HA, how can I control multiple lights with a button and an event like sunset?](https://discourse.nodered.org/t/using-nr-with-ha-how-can-i-control-multiple-lights-with-a-button-and-an-event-like-sunset/37854)

<div class="topic-metadata">

**Author:** [@ghurty](https://discourse.nodered.org/u/ghurty)\
**Replies:** 0\
**Last updated:** [21 December 2020 17:25 UTC](https://discourse.nodered.org/t/using-nr-with-ha-how-can-i-control-multiple-lights-with-a-button-and-an-event-like-sunset/37854 "2020-12-21T17:25:19Z")

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I am trying to use Node Red with HA to control lights and the alarm. I want to be able to control it based on a button as well as based on a timed event. How can I make it that a button is pressed in HA will write to…

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## [Docker/Network/Port/Directory/Volume](https://discourse.nodered.org/t/docker-network-port-directory-volume/37843)

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**Author:** [@pietrofduarte](https://discourse.nodered.org/u/pietrofduarte)\
**Replies:** 2\
**Last updated:** [21 December 2020 17:16 UTC](https://discourse.nodered.org/t/docker-network-port-directory-volume/37843 "2020-12-21T17:16:36Z")

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Hi guys I am with a huge question about Node-Red in Docker. I need build four different containers in docker of Node-Red but I need run each container with a fix IPV4 in one specific docker-network, with a specific door …

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## [Help with styling UI gauges with function](https://discourse.nodered.org/t/help-with-styling-ui-gauges-with-function/37730)

<div class="topic-metadata">

**Author:** [@Tomadoggy](https://discourse.nodered.org/u/Tomadoggy)\
**Replies:** 30\
**Last updated:** [21 December 2020 15:41 UTC](https://discourse.nodered.org/t/help-with-styling-ui-gauges-with-function/37730 "2020-12-21T15:41:52Z")

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Hello, in a somewhat OCD way, I wish to style/resize my node red gauges. I have done a lot of research but to little avail. Some help has come from: node-red-dashboard/config-fields.md at master · node-red/node-red-d…

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