# Latest

**URL:** https://discourse.nodered.org/latest.md?page=1114

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

**Page:** 1115

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## [How to install an OPC UA Node](https://discourse.nodered.org/t/how-to-install-an-opc-ua-node/24824)

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**Author:** [@Tasty1](https://discourse.nodered.org/u/Tasty1)\
**Replies:** 5\
**Last updated:** [16 April 2020 19:54 UTC](https://discourse.nodered.org/t/how-to-install-an-opc-ua-node/24824 "2020-04-16T19:54:01Z")

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Hi I am new and I've Trouble with the Installation of the OPC UA node on my Laptop (Windows 10) I recieve this message: C:\\Users\*\*\*\*\>npm install node-red-contrib-opcua npm ERR! Unexpected end of JSON input while parsi…

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## [Extract array from Global context](https://discourse.nodered.org/t/extract-array-from-global-context/24961)

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**Author:** [@ghayne](https://discourse.nodered.org/u/ghayne)\
**Replies:** 3\
**Last updated:** [16 April 2020 19:41 UTC](https://discourse.nodered.org/t/extract-array-from-global-context/24961 "2020-04-16T19:41:40Z")

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I have a problem extracting an array from a Global variable that is an array of arrays. I want to use a calculated index instead of a fixed index. this is in a JsoNATA expression in a change node: $globalContext("rfcod…

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## [Doubt about Dashboard](https://discourse.nodered.org/t/doubt-about-dashboard/24583)

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**Author:** [@Jasper](https://discourse.nodered.org/u/Jasper)\
**Replies:** 10\
**Last updated:** [16 April 2020 19:26 UTC](https://discourse.nodered.org/t/doubt-about-dashboard/24583 "2020-04-16T19:26:45Z")

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Hello, I would like to know if exists the posibility of delete the marked area from the dashboard Thank in advanc

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## [RSS FeedParser node-red-node-feedparser-2 passing in an RSS URL](https://discourse.nodered.org/t/rss-feedparser-node-red-node-feedparser-2-passing-in-an-rss-url/24967)

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**Author:** [@mrSidX](https://discourse.nodered.org/u/mrSidX)\
**Replies:** 0\
**Last updated:** [16 April 2020 19:17 UTC](https://discourse.nodered.org/t/rss-feedparser-node-red-node-feedparser-2-passing-in-an-rss-url/24967 "2020-04-16T19:17:06Z")

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I see this feed parser has an input, but I cant seem to change any properties via this input. I think it is node-red-node-feedparser-2 that takes in the input, but not sure how to pass in a URL to have it monitor for t…

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## [Compare sun events to time](https://discourse.nodered.org/t/compare-sun-events-to-time/24963)

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**Author:** [@tompijls](https://discourse.nodered.org/u/tompijls)\
**Replies:** 0\
**Last updated:** [16 April 2020 17:47 UTC](https://discourse.nodered.org/t/compare-sun-events-to-time/24963 "2020-04-16T17:47:49Z")

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Hi, I'm using node red with home assistant to switch on my home lights when I'm not at home. I was using a time range node, set to Start Time 7:00 and End Time SunriseEnd. This worked pretty well until recently, when …

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## [Can't install node-red-node-sqlite](https://discourse.nodered.org/t/cant-install-node-red-node-sqlite/24955)

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**Author:** [@ellerre](https://discourse.nodered.org/u/ellerre)\
**Replies:** 2\
**Last updated:** [16 April 2020 17:17 UTC](https://discourse.nodered.org/t/cant-install-node-red-node-sqlite/24955 "2020-04-16T17:17:38Z")

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Hello everyone! Due a my error, I reinstalled Armbian, Node Red etc... on Armbian Buster with Linux 4.14.174-odroidxu4 Everything worked, but ... (there is always a "but :)) I can't install "node-red-node-sqlite" from…

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## [Confused between the "credentials" in APP/settings versus APP/credentials](https://discourse.nodered.org/t/confused-between-the-credentials-in-app-settings-versus-app-credentials/24945)

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**Author:** [@etawyy](https://discourse.nodered.org/u/etawyy)\
**Replies:** 1\
**Last updated:** [16 April 2020 17:15 UTC](https://discourse.nodered.org/t/confused-between-the-credentials-in-app-settings-versus-app-credentials/24945 "2020-04-16T17:15:33Z")

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I'm running nodered in bluemix and am putting that system in production. In my cloudant storage (the "nodered" db) I see 2 credentials: in APPNAME/credential: {"credentials":{"$":"XXXXX"}} in APPNAME/settings: { "sett…

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## [SDS011 contrib, how to set the working period](https://discourse.nodered.org/t/sds011-contrib-how-to-set-the-working-period/24624)

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**Author:** [@calcioscacchi](https://discourse.nodered.org/u/calcioscacchi)\
**Replies:** 13\
**Last updated:** [16 April 2020 14:58 UTC](https://discourse.nodered.org/t/sds011-contrib-how-to-set-the-working-period/24624 "2020-04-16T14:58:07Z")

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Hi everyone, I'm a newbie with node red. Actually, i'i'm trying to configure my SDS011 sensor node in my rapsberry pi3, you can find it here: https://flows.nodered.org/node/node-red-contrib-sds011 The sensor works fin…

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## [Create a function for delete and copy files](https://discourse.nodered.org/t/create-a-function-for-delete-and-copy-files/24942)

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**Author:** [@PaulL](https://discourse.nodered.org/u/PaulL)\
**Replies:** 5\
**Last updated:** [16 April 2020 14:14 UTC](https://discourse.nodered.org/t/create-a-function-for-delete-and-copy-files/24942 "2020-04-16T14:14:30Z")

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Hi, I need to create a function to delete files if exists and after deleting I need to copy one file to another... I start to write import java.io.File; // Import the File class public class DeleteFile; public stat…

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## [How generate new msg, for use outside node.on('input',cb)](https://discourse.nodered.org/t/how-generate-new-msg-for-use-outside-node-on-input-cb/24936)

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**Author:** [@bug00](https://discourse.nodered.org/u/bug00)\
**Replies:** 4\
**Last updated:** [16 April 2020 11:51 UTC](https://discourse.nodered.org/t/how-generate-new-msg-for-use-outside-node-on-input-cb/24936 "2020-04-16T11:51:58Z")

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Hi, I had an output node who listen directory. I want use jsonata on some properties, process like this const expr = RED.util.prepareJSONataExpression(node.ignoredFiles,node) let msg = {} …

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## [Node Red devices not responding in Google assistant](https://discourse.nodered.org/t/node-red-devices-not-responding-in-google-assistant/24939)

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**Author:** [@gaika123](https://discourse.nodered.org/u/gaika123)\
**Replies:** 0\
**Last updated:** [16 April 2020 11:19 UTC](https://discourse.nodered.org/t/node-red-devices-not-responding-in-google-assistant/24939 "2020-04-16T11:19:20Z")

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Hi guys. I'm using the Google assistant smart speaker to control all my smart devices over Node Red. I've registered an account with red.cb-net.co.uk and linked the account to my Google assistant. I was then able to con…

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## [Context is reset to default when input is 0](https://discourse.nodered.org/t/context-is-reset-to-default-when-input-is-0/24914)

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**Author:** [@Assi](https://discourse.nodered.org/u/Assi)\
**Replies:** 2\
**Last updated:** [16 April 2020 11:11 UTC](https://discourse.nodered.org/t/context-is-reset-to-default-when-input-is-0/24914 "2020-04-16T11:11:14Z")

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Im testing my function with a inject node of topic dim with payload values of 0 and 1. the code is like: node.warn("xx context.dimpre:" + context.dim); context.dim = context.dim || 100.0; node.warn("xx context.dimpo…

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## [Msg.params from ui\_control node](https://discourse.nodered.org/t/msg-params-from-ui-control-node/24907)

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**Author:** [@Colin](https://discourse.nodered.org/u/Colin)\
**Replies:** 4\
**Last updated:** [16 April 2020 10:32 UTC](https://discourse.nodered.org/t/msg-params-from-ui-control-node/24907 "2020-04-16T10:32:08Z")

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I notice that if I deploy a ui\_control node and open the dashboard using a url such as http://localhost:1880/ui/#!/0?socketid=&fred=hello&jim=42 that I get two messages from the ui\_control node. The first is the conne…

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## [How to increase icon size of a "SWITCH" node](https://discourse.nodered.org/t/how-to-increase-icon-size-of-a-switch-node/24862)

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**Author:** [@jan-k](https://discourse.nodered.org/u/jan-k)\
**Replies:** 3\
**Last updated:** [16 April 2020 09:59 UTC](https://discourse.nodered.org/t/how-to-increase-icon-size-of-a-switch-node/24862 "2020-04-16T09:59:44Z")

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Greetings everyone, I would like to know whether the switch node icon can be bigger or not. I had tried to increase the size of the Angular Material Icons in a switch node. But it cannot works. Any suggestion will be ap…

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## [I am still not getting thse \`buttons\` and their settings](https://discourse.nodered.org/t/i-am-still-not-getting-thse-buttons-and-their-settings/24843)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 21\
**Last updated:** [16 April 2020 09:26 UTC](https://discourse.nodered.org/t/i-am-still-not-getting-thse-buttons-and-their-settings/24843 "2020-04-16T09:26:33Z")

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(Believe me I don't like this any more than you) This is really driving me batty. This is the button: It works. I see the icon. \[{"id":"5ef1b432.4ab89c","type":"ui\_button","z":"26262ba1.62dcbc","name":"","group":"14…

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## [Serial port install problem](https://discourse.nodered.org/t/serial-port-install-problem/24859)

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**Author:** [@arpit8851](https://discourse.nodered.org/u/arpit8851)\
**Replies:** 7\
**Last updated:** [16 April 2020 08:40 UTC](https://discourse.nodered.org/t/serial-port-install-problem/24859 "2020-04-16T08:40:27Z")

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2020-04-15T08:59:58.980Z Install : node-red-node-serialport 0.10.1 2020-04-15T08:59:59.018Z npm.cmd install --no-audit --no-update-notifier --save --save-prefix="~" --production node-red-node-serialport@0.10.1 2020-04…

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## [Node.js: Server-side JavaScript has stopped working | node-red](https://discourse.nodered.org/t/node-js-server-side-javascript-has-stopped-working-node-red/24882)

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**Author:** [@sahebdatta](https://discourse.nodered.org/u/sahebdatta)\
**Replies:** 5\
**Last updated:** [16 April 2020 07:38 UTC](https://discourse.nodered.org/t/node-js-server-side-javascript-has-stopped-working-node-red/24882 "2020-04-16T07:38:15Z")

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Hello everyone, I'm trying to run node-red on windows 10. whenever I try to fire-up node-red from cmd, I get a pop-up with the following error, "Node.js: Server-side JavaScript has stopped working". It wasn't the same a…

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## [UI builder Vue CLI](https://discourse.nodered.org/t/ui-builder-vue-cli/24783)

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**Author:** [@Beefy\_carrot](https://discourse.nodered.org/u/Beefy_carrot)\
**Replies:** 2\
**Last updated:** [16 April 2020 07:33 UTC](https://discourse.nodered.org/t/ui-builder-vue-cli/24783 "2020-04-16T07:33:27Z")

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Does anyone have experience adding a Vue Cli structure to uibuilder, or do i need to use the traditonal way ?

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## [My dive into CSS: I'm missing something when applying it to Node-Red](https://discourse.nodered.org/t/my-dive-into-css-im-missing-something-when-applying-it-to-node-red/24917)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 7\
**Last updated:** [16 April 2020 07:26 UTC](https://discourse.nodered.org/t/my-dive-into-css-im-missing-something-when-applying-it-to-node-red/24917 "2020-04-16T07:26:57Z")

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Yeah, I know it is outside the scope of this forum in that here we talk Node-Red. But Node-Red includes CSS, and after doing some exercises it isn't making sense. What is said, what is written and what happens. I kno…

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## [Getting to 3D world with node-red-contrib-web-babylonjs](https://discourse.nodered.org/t/getting-to-3d-world-with-node-red-contrib-web-babylonjs/24844)

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**Author:** [@ahmadsayed](https://discourse.nodered.org/u/ahmadsayed)\
**Replies:** 9\
**Last updated:** [16 April 2020 02:12 UTC](https://discourse.nodered.org/t/getting-to-3d-world-with-node-red-contrib-web-babylonjs/24844 "2020-04-16T02:12:32Z")

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This is a very early usable draft of my idea, about 3D visualization , may be AR in later phases not now, using node-red based on webGL and babylonjs library FEAUTRE: Draw basic mesh Sphere, box, plan , box Do sp…

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## [Multi user in node-red dashboard](https://discourse.nodered.org/t/multi-user-in-node-red-dashboard/24786)

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**Author:** [@tharunmax](https://discourse.nodered.org/u/tharunmax)\
**Replies:** 5\
**Last updated:** [16 April 2020 00:41 UTC](https://discourse.nodered.org/t/multi-user-in-node-red-dashboard/24786 "2020-04-16T00:41:34Z")

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Hai, I have created a multi-user dashboard in node-red but the problem is if I log in on to the node-red dashboard in pc it works but if I try to use my mobile to login with other usernames the dashboard in the pc also …

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## [Adding custom properties to a nodegen function node](https://discourse.nodered.org/t/adding-custom-properties-to-a-nodegen-function-node/24909)

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**Author:** [@RNCTX](https://discourse.nodered.org/u/RNCTX)\
**Replies:** 2\
**Last updated:** [16 April 2020 00:18 UTC](https://discourse.nodered.org/t/adding-custom-properties-to-a-nodegen-function-node/24909 "2020-04-16T00:18:49Z")

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Hey folks, I've just stumbled onto Node Red about a week ago and am having a lot of fun, thanks to IBM for the wonderful tool. I'm looking to create a couple of custom nodes and this topic seems to have progressed quite…

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## [Npm ERR! code ELOCKVERIFY](https://discourse.nodered.org/t/npm-err-code-elockverify/24873)

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**Author:** [@StrongTown](https://discourse.nodered.org/u/StrongTown)\
**Replies:** 21\
**Last updated:** [15 April 2020 22:41 UTC](https://discourse.nodered.org/t/npm-err-code-elockverify/24873 "2020-04-15T22:41:24Z")

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When I try to run Node Red it gets to a point and the log reports "Killed" and loading of Node Red stops. I was modifying code however I was not doing anything so major as to cause this problem (I was adjusting colors an…

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## [Persist user/password info for nodes](https://discourse.nodered.org/t/persist-user-password-info-for-nodes/24874)

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**Author:** [@louison](https://discourse.nodered.org/u/louison)\
**Replies:** 8\
**Last updated:** [15 April 2020 19:47 UTC](https://discourse.nodered.org/t/persist-user-password-info-for-nodes/24874 "2020-04-15T19:47:26Z")

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Hello, Specifics nodes need user/pwd informations like MQTT broker for example. If I want to persist informations after nodered restart, I need to put them in flows\_cred.json. It works. If I only fill these informati…

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## [From an Array to an UI Table](https://discourse.nodered.org/t/from-an-array-to-an-ui-table/24891)

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**Author:** [@jjrivasescola](https://discourse.nodered.org/u/jjrivasescola)\
**Replies:** 4\
**Last updated:** [15 April 2020 18:10 UTC](https://discourse.nodered.org/t/from-an-array-to-an-ui-table/24891 "2020-04-15T18:10:40Z")

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Hello everyone!! I would like to show the values of an array in a UI Table in the dashboard. The dimensions of the array is X and contains values like this one: The meaning of the values are date, time, batch and qu…

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## [Change dropdown length](https://discourse.nodered.org/t/change-dropdown-length/24895)

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**Author:** [@arlinfriesen](https://discourse.nodered.org/u/arlinfriesen)\
**Replies:** 0\
**Last updated:** [15 April 2020 18:02 UTC](https://discourse.nodered.org/t/change-dropdown-length/24895 "2020-04-15T18:02:35Z")

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How do you extend the length of a dropdown window? I have plenty of screen room to show all 7 options, but it only displays five. I'm unsure of what can be done via CSS or HTML styling in a template node but I'm guessi…

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## [Auto-destruction function](https://discourse.nodered.org/t/auto-destruction-function/24803)

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**Author:** [@lenny1972](https://discourse.nodered.org/u/lenny1972)\
**Replies:** 8\
**Last updated:** [15 April 2020 17:00 UTC](https://discourse.nodered.org/t/auto-destruction-function/24803 "2020-04-15T17:00:07Z")

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Willing to protect my flows running on remote RASP - and without a safe method to protect my MicroSD (even if gluing the MicroSD should be a possible solution) - I'm thinking about implementing a simil "self-distruction"…

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## [Beagle Board Black beaglebone-io module](https://discourse.nodered.org/t/beagle-board-black-beaglebone-io-module/24831)

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**Author:** [@Nic](https://discourse.nodered.org/u/Nic)\
**Replies:** 2\
**Last updated:** [15 April 2020 14:31 UTC](https://discourse.nodered.org/t/beagle-board-black-beaglebone-io-module/24831 "2020-04-15T14:31:38Z")

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Hi all, I am a new user either with beagleboard black and node-red. I tried to move the first steps using the gpio nodes (thank you dceejay for your support) but a beaglebone-io module is needed. Tried to install using …

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## [Linking 2 or more instances on a local network](https://discourse.nodered.org/t/linking-2-or-more-instances-on-a-local-network/24879)

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**Author:** [@MDAR](https://discourse.nodered.org/u/MDAR)\
**Replies:** 9\
**Last updated:** [15 April 2020 13:50 UTC](https://discourse.nodered.org/t/linking-2-or-more-instances-on-a-local-network/24879 "2020-04-15T13:50:41Z")

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## [Communication between node-red servers](https://discourse.nodered.org/t/communication-between-node-red-servers/1727)

<div class="topic-metadata">

**Author:** [@drmacro](https://discourse.nodered.org/u/drmacro)\
**Replies:** 5\
**Last updated:** [22 July 2018 13:41 UTC](https://discourse.nodered.org/t/communication-between-node-red-servers/1727 "2018-07-22T13:41:40Z")

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I plan to have multiple node-red servers running. There will be, most likely, a main server that needs to collect data from flows running on the other servers. Any pointers to reading on setting up such a thing? Or, hi…

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