# Latest

**URL:** https://discourse.nodered.org/latest.md?page=1157

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

**Page:** 1158

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## [Getting Global Variable Value](https://discourse.nodered.org/t/getting-global-variable-value/21727)

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**Author:** [@an93](https://discourse.nodered.org/u/an93)\
**Replies:** 16\
**Last updated:** [15 February 2020 00:02 UTC](https://discourse.nodered.org/t/getting-global-variable-value/21727 "2020-02-15T00:02:42Z")

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Hello, I am having some trouble with getting the value of global variable being set, in functions. Below is the flow screenshot; Function 4 goes: global.set("TRIGGER",msg.payload); var res = global.get('LENGTH'); …

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## [Help with the lcd20x4-i2c node](https://discourse.nodered.org/t/help-with-the-lcd20x4-i2c-node/21721)

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**Author:** [@ajaymccollum](https://discourse.nodered.org/u/ajaymccollum)\
**Replies:** 2\
**Last updated:** [14 February 2020 23:57 UTC](https://discourse.nodered.org/t/help-with-the-lcd20x4-i2c-node/21721 "2020-02-14T23:57:29Z")

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So, I'm about as new as you can get with JavaScript and coding in general, so this might be tough, but please bear with me. I'm getting data from two DHT-11 temperature and humidity sensors via a raspi 4 and am successf…

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## [Chromium / Raspbian notification](https://discourse.nodered.org/t/chromium-raspbian-notification/21611)

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**Author:** [@Flixm](https://discourse.nodered.org/u/Flixm)\
**Replies:** 8\
**Last updated:** [14 February 2020 19:06 UTC](https://discourse.nodered.org/t/chromium-raspbian-notification/21611 "2020-02-14T19:06:49Z")

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Hi there, i use node red on my digital kitchen wall calender (which i controll with IKEA tradfri remote... cool idea), but now i want to show a notification in chromium or in front of raspbian ...could someone show me a…

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## [How to delete the "Return key" Character from Payload](https://discourse.nodered.org/t/how-to-delete-the-return-key-character-from-payload/21705)

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**Author:** [@Fetterspanier](https://discourse.nodered.org/u/Fetterspanier)\
**Replies:** 5\
**Last updated:** [14 February 2020 18:07 UTC](https://discourse.nodered.org/t/how-to-delete-the-return-key-character-from-payload/21705 "2020-02-14T18:07:25Z")

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How to delete the "Return key" Character from Payload when loading a file and using the join node as well. Im trying to use the File Node with the Join Node to get a payload that isn't split in separate lines. \[{"id"…

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## [\[SOLVED\] Phoscon (Conbee) integration in Node-RED](https://discourse.nodered.org/t/solved-phoscon-conbee-integration-in-node-red/21693)

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**Author:** [@broken.pipe](https://discourse.nodered.org/u/broken.pipe)\
**Replies:** 7\
**Last updated:** [14 February 2020 17:11 UTC](https://discourse.nodered.org/t/solved-phoscon-conbee-integration-in-node-red/21693 "2020-02-14T17:11:11Z")

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Hello everybody! I am currently checking if i can use Node-RED as a standalone application (instead of Home Assistant). I have a conbee 2 stick and use it to control several thermostats and lights. For the Conbee stick t…

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## [Disable Side Menu](https://discourse.nodered.org/t/disable-side-menu/15091)

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**Author:** [@rwiest](https://discourse.nodered.org/u/rwiest)\
**Replies:** 6\
**Last updated:** [14 February 2020 17:36 UTC](https://discourse.nodered.org/t/disable-side-menu/15091 "2020-02-14T17:36:39Z")

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hello, i'm using node / flow suggested by https://github.com/phyunsj/node-red-dashboard-login to control login. Someone who has already used and can help me with a question. Is it possible to disable the side menu only o…

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## [Use of HTML Table in Template](https://discourse.nodered.org/t/use-of-html-table-in-template/21682)

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**Author:** [@karlbo](https://discourse.nodered.org/u/karlbo)\
**Replies:** 7\
**Last updated:** [14 February 2020 17:01 UTC](https://discourse.nodered.org/t/use-of-html-table-in-template/21682 "2020-02-14T17:01:39Z")

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Hi there, i have been developing varius tables for storing data and system setting via the template node and eventually to be stored in some sort of sql. untill now i had to rely on adding a save button on the end of eac…

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## [Introducing typed inputs in my first custom node ever](https://discourse.nodered.org/t/introducing-typed-inputs-in-my-first-custom-node-ever/21658)

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**Author:** [@BartButenaers](https://discourse.nodered.org/u/BartButenaers)\
**Replies:** 2\
**Last updated:** [14 February 2020 16:57 UTC](https://discourse.nodered.org/t/introducing-typed-inputs-in-my-first-custom-node-ever/21658 "2020-02-14T16:57:57Z")

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Hi folks, A couple of years ago I developed my first custom node (node-red-contrib-msg-resend), which a couple of numeric inputs on the config screen: Both numeric values can be set dynamically via the input message …

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## [FTP download folder](https://discourse.nodered.org/t/ftp-download-folder/6381)

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**Author:** [@Martin](https://discourse.nodered.org/u/Martin)\
**Replies:** 8\
**Last updated:** [14 February 2020 16:35 UTC](https://discourse.nodered.org/t/ftp-download-folder/6381 "2020-02-14T16:35:37Z")

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Hello readers. for a proyect i need to download a folder from a FTP server. the only node what allows something close to what i need, is this one https://flows.nodered.org/node/node-red-contrib-ftp Does anyone knows how …

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## [Custom Button is too small](https://discourse.nodered.org/t/custom-button-is-too-small/21555)

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**Author:** [@tobi-coder](https://discourse.nodered.org/u/tobi-coder)\
**Replies:** 2\
**Last updated:** [14 February 2020 16:22 UTC](https://discourse.nodered.org/t/custom-button-is-too-small/21555 "2020-02-14T16:22:51Z")

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I'm very new to the dashboard and try to create a custom button using a ui template with this code: \<button class="md-raised md-button md-ink-ripple" type="button" ng-transclude="" ng-click="send({payload:'play\_mysono…

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## [Var in exec nodes](https://discourse.nodered.org/t/var-in-exec-nodes/21704)

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**Author:** [@zunder1990](https://discourse.nodered.org/u/zunder1990)\
**Replies:** 1\
**Last updated:** [14 February 2020 15:47 UTC](https://discourse.nodered.org/t/var-in-exec-nodes/21704 "2020-02-14T15:47:17Z")

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I am having problems passing vars into exec node. I have tried two diffrent ways. One using the vars in the command line of the exec node. I have also tried passing the whole command from a function node using msg.payloa…

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## [ModbusFlexGetter - Override unitid](https://discourse.nodered.org/t/modbusflexgetter-override-unitid/21694)

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**Author:** [@LTDS](https://discourse.nodered.org/u/LTDS)\
**Replies:** 0\
**Last updated:** [14 February 2020 12:18 UTC](https://discourse.nodered.org/t/modbusflexgetter-override-unitid/21694 "2020-02-14T12:18:37Z")

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Hi ! I'm having issues to override the value of the unitid in the ModbusFlexGetter node using the function node. Here is my flow : \[{"id":"2dec2833.200ce","type":"tab","label":"Flow 2","disabled":false,"info":""},{"id…

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## [FTP node put empty files to the FTP server](https://discourse.nodered.org/t/ftp-node-put-empty-files-to-the-ftp-server/21697)

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**Author:** [@keisi](https://discourse.nodered.org/u/keisi)\
**Replies:** 6\
**Last updated:** [14 February 2020 15:21 UTC](https://discourse.nodered.org/t/ftp-node-put-empty-files-to-the-ftp-server/21697 "2020-02-14T15:21:08Z")

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Hi everybody, I am a newbie with Node-Red. I have a flow that create a csv file starting from the data contained in a payload from an instrument, save the csv in the local machine with a custom name (xxxx\_datetime.csv)…

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## [How to disable button ripple?](https://discourse.nodered.org/t/how-to-disable-button-ripple/21710)

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**Author:** [@iungo](https://discourse.nodered.org/u/iungo)\
**Replies:** 0\
**Last updated:** [14 February 2020 14:59 UTC](https://discourse.nodered.org/t/how-to-disable-button-ripple/21710 "2020-02-14T14:59:42Z")

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I'm using ui-control to change tabs by pressing the buttons, but button animation looks ugly slow PC. Maybe somebody know, how to disable button animation(ripple)?

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## [OPC-UA to Azure-IOT hub](https://discourse.nodered.org/t/opc-ua-to-azure-iot-hub/21391)

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**Author:** [@sachit](https://discourse.nodered.org/u/sachit)\
**Replies:** 1\
**Last updated:** [14 February 2020 13:40 UTC](https://discourse.nodered.org/t/opc-ua-to-azure-iot-hub/21391 "2020-02-14T13:40:41Z")

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Hi, I am trying to send PLC tag data to azure iot hub using OPC UA I am able to read the tags from PLC and using Join node able to convert into object of Key-value. How we can convert the object of key-value to sing…

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## [Expand Value to 3 digits](https://discourse.nodered.org/t/expand-value-to-3-digits/21690)

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**Author:** [@ebnerjoh](https://discourse.nodered.org/u/ebnerjoh)\
**Replies:** 4\
**Last updated:** [14 February 2020 11:36 UTC](https://discourse.nodered.org/t/expand-value-to-3-digits/21690 "2020-02-14T11:36:55Z")

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Hi, I have a function which delivers me a value from 0.0 to 999.9 e.g.: 8.3, 14.5, 342.9 I need to expand the value before the comma to 3 digits. e.g. 008.3, 014.5, 342.9 How can I do this? Br, Johannes

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## [Nored Dashboard page customized background color](https://discourse.nodered.org/t/nored-dashboard-page-customized-background-color/21688)

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**Author:** [@Henjoe](https://discourse.nodered.org/u/Henjoe)\
**Replies:** 1\
**Last updated:** [14 February 2020 10:56 UTC](https://discourse.nodered.org/t/nored-dashboard-page-customized-background-color/21688 "2020-02-14T10:56:00Z")

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Dear Node-red Experts, Is it possible to change the Dashboard page color ? let say I want to make a background color to be linear? It is like overriding the theme via UI template and apply some basic CSS to change the c…

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## [Lights Control with dynamic chart](https://discourse.nodered.org/t/lights-control-with-dynamic-chart/6135)

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**Author:** [@karlbo](https://discourse.nodered.org/u/karlbo)\
**Replies:** 6\
**Last updated:** [14 February 2020 07:31 UTC](https://discourse.nodered.org/t/lights-control-with-dynamic-chart/6135 "2020-02-14T07:31:42Z")

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\[{"id":"70a2131.4af1aec","type":"ui\_template","z":"66c8dbc5.4245b4","group":"9d7320e.521fce","name":"chart","order":1,"width":"24","height":"10","format":"\\n\\t\<style\>\\n\\t\\thtml,body{\\n\\t\\t\\tmargin: 0;\\n\\t\\t\\tpadding: 0;\\…

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## [How to alter SVG elements in dashboard?](https://discourse.nodered.org/t/how-to-alter-svg-elements-in-dashboard/21679)

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**Author:** [@dr\_cave\_dweller](https://discourse.nodered.org/u/dr_cave_dweller)\
**Replies:** 0\
**Last updated:** [14 February 2020 04:45 UTC](https://discourse.nodered.org/t/how-to-alter-svg-elements-in-dashboard/21679 "2020-02-14T04:45:35Z")

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I am using the numeric dashboard element, the one with the up down arrows. The arrows are too small against the text, I need to increase the size. When I target with developer tools it brings up a box called SVG\[Attribu…

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## [Serial communication-RS-485 using NODE RED](https://discourse.nodered.org/t/serial-communication-rs-485-using-node-red/8426)

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**Author:** [@Geeta](https://discourse.nodered.org/u/Geeta)\
**Replies:** 4\
**Last updated:** [14 February 2020 04:18 UTC](https://discourse.nodered.org/t/serial-communication-rs-485-using-node-red/8426 "2020-02-14T04:18:54Z")

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Can I get steps for RS-485 communication between Raspberry Pi and Energy Meter using Node Red programming Tool? I have Node Red Tool and USB to Rs-485 conveter.

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## [New: Template Node Package for custom node development](https://discourse.nodered.org/t/new-template-node-package-for-custom-node-development/13506)

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**Author:** [@TotallyInformation](https://discourse.nodered.org/u/TotallyInformation)\
**Replies:** 4\
**Last updated:** [14 February 2020 00:01 UTC](https://discourse.nodered.org/t/new-template-node-package-for-custom-node-development/13506 "2020-02-14T00:01:08Z")

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Hi all, another utility release. This time a template for node development in case anyone is interested. This is a full package with all of the basic parts in place and ready for you to tailor to your own design. It fo…

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## [How do you visualize your Data / Charts?](https://discourse.nodered.org/t/how-do-you-visualize-your-data-charts/21166)

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**Author:** [@Gawan](https://discourse.nodered.org/u/Gawan)\
**Replies:** 9\
**Last updated:** [13 February 2020 22:10 UTC](https://discourse.nodered.org/t/how-do-you-visualize-your-data-charts/21166 "2020-02-13T22:10:58Z")

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Unfortunately the visualisation capabilities of Node-Red are not yet ready to use. No authentication, missing possibility of independent UIs, multi-user functionality, .... What do you use for visualizing your data ? H…

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## [Cant change background of H3 tag in UI template](https://discourse.nodered.org/t/cant-change-background-of-h3-tag-in-ui-template/21578)

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**Author:** [@Henjoe](https://discourse.nodered.org/u/Henjoe)\
**Replies:** 3\
**Last updated:** [13 February 2020 21:50 UTC](https://discourse.nodered.org/t/cant-change-background-of-h3-tag-in-ui-template/21578 "2020-02-13T21:50:31Z")

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Dear all, I have simple UI-template , I am trying to make bg-color of H3 to be color black. But it seems like node-red doesnt allow my simple CSS. i have CSS like h3{ bacground-color:black} but it is not working. Kindl…

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## [Audio on homepage](https://discourse.nodered.org/t/audio-on-homepage/21594)

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**Author:** [@mariulin](https://discourse.nodered.org/u/mariulin)\
**Replies:** 8\
**Last updated:** [13 February 2020 21:21 UTC](https://discourse.nodered.org/t/audio-on-homepage/21594 "2020-02-13T21:21:30Z")

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I need to have an audio playing when I open the dashboard homepage. Is it possibile? If yes, in what way? Thank in advance

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## [Send simple message as string](https://discourse.nodered.org/t/send-simple-message-as-string/21625)

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**Author:** [@Poodlepapa](https://discourse.nodered.org/u/Poodlepapa)\
**Replies:** 6\
**Last updated:** [13 February 2020 19:21 UTC](https://discourse.nodered.org/t/send-simple-message-as-string/21625 "2020-02-13T19:21:32Z")

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I have a simple message format question. I have set up an inject node to send 1, 2, 3, or 4 as a string. How do I incorporate a node to send those with out using an inject node? It truly is a s simple as sending a 1-4 w…

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## [Click to send data for ui\_chart (Bar graphs)](https://discourse.nodered.org/t/click-to-send-data-for-ui-chart-bar-graphs/21621)

<div class="topic-metadata">

**Author:** [@xraken](https://discourse.nodered.org/u/xraken)\
**Replies:** 2\
**Last updated:** [12 February 2020 23:23 UTC](https://discourse.nodered.org/t/click-to-send-data-for-ui-chart-bar-graphs/21621 "2020-02-12T23:23:59Z")

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For ui\_table, there is a check box for "send data onclick" which is very useful to handle click events on table to show additional information for the clicked row. Is there a way to get the same effect for ui\_chart?

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## [Wait for the execution of a flow and then continoue another](https://discourse.nodered.org/t/wait-for-the-execution-of-a-flow-and-then-continoue-another/21560)

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**Author:** [@pvklink](https://discourse.nodered.org/u/pvklink)\
**Replies:** 13\
**Last updated:** [13 February 2020 17:40 UTC](https://discourse.nodered.org/t/wait-for-the-execution-of-a-flow-and-then-continoue-another/21560 "2020-02-13T17:40:52Z")

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Hi, I made a flow that streams images from a cam to google nest hub. I use a webserver for publishing the file Each file has a unique name and a prefix off xxx so that the share where these files are on are not synchro…

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## [Ui-table node example](https://discourse.nodered.org/t/ui-table-node-example/21628)

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**Author:** [@NODE777](https://discourse.nodered.org/u/NODE777)\
**Replies:** 3\
**Last updated:** [13 February 2020 16:42 UTC](https://discourse.nodered.org/t/ui-table-node-example/21628 "2020-02-13T16:42:15Z")

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Hi I saw this post https://discourse.nodered.org/t/examples-for-node-red-node-ui-table/14256/17 but I would need something more basic to get started. Would someone give me an example? Thank you in advance.

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## [Node-RED won't run as service Debian 10](https://discourse.nodered.org/t/node-red-wont-run-as-service-debian-10/21558)

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**Author:** [@dtorres](https://discourse.nodered.org/u/dtorres)\
**Replies:** 12\
**Last updated:** [13 February 2020 15:43 UTC](https://discourse.nodered.org/t/node-red-wont-run-as-service-debian-10/21558 "2020-02-13T15:43:45Z")

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Hello all, I installed Node-RED using the script, as I try to set it up to run as service I got an error.

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## [Apple touch icon problem](https://discourse.nodered.org/t/apple-touch-icon-problem/21655)

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**Author:** [@TobbyC](https://discourse.nodered.org/u/TobbyC)\
**Replies:** 0\
**Last updated:** [13 February 2020 14:57 UTC](https://discourse.nodered.org/t/apple-touch-icon-problem/21655 "2020-02-13T14:57:35Z")

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Hello, I realize for my company an IOT project and the use on smartphone is important therefore, I want to be able to add the web page on the home page of smartphones. My problem is that I can't add an icon for it and m…

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