# Latest

**URL:** https://discourse.nodered.org/latest.md?page=1041

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

**Page:** 1042

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## [Setting default value for a numeric node and passing it on](https://discourse.nodered.org/t/setting-default-value-for-a-numeric-node-and-passing-it-on/30148)

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**Author:** [@davej](https://discourse.nodered.org/u/davej)\
**Replies:** 4\
**Last updated:** [15 July 2020 22:50 UTC](https://discourse.nodered.org/t/setting-default-value-for-a-numeric-node-and-passing-it-on/30148 "2020-07-15T22:50:22Z")

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I am having a brain freeze with something that should be really simple.. I have a numeric input node with a range of 1 - 4. I want to provide a default value of 1 which I do via a change node (or an inject). However, …

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## [Interval in IF-loop is 'deaf' for injecting input](https://discourse.nodered.org/t/interval-in-if-loop-is-deaf-for-injecting-input/30093)

<div class="topic-metadata">

**Author:** [@melhof](https://discourse.nodered.org/u/melhof)\
**Replies:** 8\
**Last updated:** [15 July 2020 21:21 UTC](https://discourse.nodered.org/t/interval-in-if-loop-is-deaf-for-injecting-input/30093 "2020-07-15T21:21:13Z")

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Can someone tell me how to get this to work, or if it is an error in Node-Red? I am programming a countdown interval in a function node. But inside the IF loop, the clearInterval does not want to be triggered by inject…

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## [Delete a flow and ui objects connected to it are not deleted as well?](https://discourse.nodered.org/t/delete-a-flow-and-ui-objects-connected-to-it-are-not-deleted-as-well/30074)

<div class="topic-metadata">

**Author:** [@Nodi.Rubrum](https://discourse.nodered.org/u/Nodi.Rubrum)\
**Replies:** 8\
**Last updated:** [15 July 2020 20:58 UTC](https://discourse.nodered.org/t/delete-a-flow-and-ui-objects-connected-to-it-are-not-deleted-as-well/30074 "2020-07-15T20:58:11Z")

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Delete a flow and ui objects connected to it are not deleted as well? These are not shared ui objects. Shared ui objects, referenced by other flows, should not be deleted. But ui objects only linked to a single flow, …

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## [Thoughts and musings on deployment of Node Red to remote locations](https://discourse.nodered.org/t/thoughts-and-musings-on-deployment-of-node-red-to-remote-locations/30151)

<div class="topic-metadata">

**Author:** [@Nodi.Rubrum](https://discourse.nodered.org/u/Nodi.Rubrum)\
**Replies:** 0\
**Last updated:** [15 July 2020 20:47 UTC](https://discourse.nodered.org/t/thoughts-and-musings-on-deployment-of-node-red-to-remote-locations/30151 "2020-07-15T20:47:32Z")

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After many forum discussions, past reviewed, recent active topics, etc. And some significant testing over the last week or so, below is what I think works well, at least for me. Chime in of course as desired. Two scen…

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## [HTTP Error: self signed certificate](https://discourse.nodered.org/t/http-error-self-signed-certificate/30147)

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**Author:** [@fmqs](https://discourse.nodered.org/u/fmqs)\
**Replies:** 0\
**Last updated:** [15 July 2020 20:21 UTC](https://discourse.nodered.org/t/http-error-self-signed-certificate/30147 "2020-07-15T20:21:15Z")

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Hello, in my system, I have currently 2 raspberries pi 3 b+ that are in different networks. In one of them (raspberry A), I have Emoncms and in the other (raspberry B) I have node-red communicating with some field devi…

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## [Rebuild curl command in Node-RED](https://discourse.nodered.org/t/rebuild-curl-command-in-node-red/30082)

<div class="topic-metadata">

**Author:** [@tepebox](https://discourse.nodered.org/u/tepebox)\
**Replies:** 2\
**Last updated:** [15 July 2020 18:55 UTC](https://discourse.nodered.org/t/rebuild-curl-command-in-node-red/30082 "2020-07-15T18:55:19Z")

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Hi, I guess a typical beginner's question: I have a curl command like this: curl -d "message=TEST" -X POST http://xxxx.xxx How do I rebuild this in Node-RED? Looks that simple but I didn't manage to get it running, ye…

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## [Is there anyway to deploy flows to multiple devices and not have the credentials for applicable nodes not lose configuration?](https://discourse.nodered.org/t/is-there-anyway-to-deploy-flows-to-multiple-devices-and-not-have-the-credentials-for-applicable-nodes-not-lose-configuration/30065)

<div class="topic-metadata">

**Author:** [@Nodi.Rubrum](https://discourse.nodered.org/u/Nodi.Rubrum)\
**Replies:** 5\
**Last updated:** [15 July 2020 18:36 UTC](https://discourse.nodered.org/t/is-there-anyway-to-deploy-flows-to-multiple-devices-and-not-have-the-credentials-for-applicable-nodes-not-lose-configuration/30065 "2020-07-15T18:36:47Z")

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Is there anyway to deploy flows to multiple devices and not have the credentials for applicable nodes not lose configuration? I tried deploying the flows credential file when I deployed the matching flows file. But I s…

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## [Function map on Node-RED](https://discourse.nodered.org/t/function-map-on-node-red/30141)

<div class="topic-metadata">

**Author:** [@lalo](https://discourse.nodered.org/u/lalo)\
**Replies:** 2\
**Last updated:** [15 July 2020 18:18 UTC](https://discourse.nodered.org/t/function-map-on-node-red/30141 "2020-07-15T18:18:41Z")

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Hi, I'm using this fuction on the Arduino IDE, but I want to use it in Node-RED some documentation that I must see? This is the function I need to use map but I'm not sure in Node-RED the equivalent for that. output\_va…

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## [Clear the previous Inputs on ui](https://discourse.nodered.org/t/clear-the-previous-inputs-on-ui/15386)

<div class="topic-metadata">

**Author:** [@Vishakha](https://discourse.nodered.org/u/Vishakha)\
**Replies:** 13\
**Last updated:** [15 July 2020 13:35 UTC](https://discourse.nodered.org/t/clear-the-previous-inputs-on-ui/15386 "2020-07-15T13:35:58Z")

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Hello I am working on a project where i have 4 tabs. And i am taking user input through text boxes ,drop downs and switches and my output gets stored in the file in json format . Right now after taking input and clickin…

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## [Compare two succesive payloads](https://discourse.nodered.org/t/compare-two-succesive-payloads/29780)

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**Author:** [@e-Duardo](https://discourse.nodered.org/u/e-Duardo)\
**Replies:** 2\
**Last updated:** [15 July 2020 13:34 UTC](https://discourse.nodered.org/t/compare-two-succesive-payloads/29780 "2020-07-15T13:34:50Z")

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Hi all, I am reading the weight given by a scale through the serial port. The scale transmits the weight value in a ratio of 10 measures per second (approx.), and I put both the weight value and the time of lecture into…

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## [installation problem manage palette installation node](https://discourse.nodered.org/t/installation-problem-manage-palette-installation-node/30121)

<div class="topic-metadata">

**Author:** [@Sebchauvour](https://discourse.nodered.org/u/Sebchauvour)\
**Replies:** 3\
**Last updated:** [15 July 2020 11:38 UTC](https://discourse.nodered.org/t/installation-problem-manage-palette-installation-node/30121 "2020-07-15T11:38:43Z")

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Translation Google Français Anglais Hello installation problem manage palette installation node. I need to install the node : Smooth ds18b20 PCA9685 out kalman-filter twitter out 2 more A Node-RED node to read…

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## [Getting error in sending email](https://discourse.nodered.org/t/getting-error-in-sending-email/30125)

<div class="topic-metadata">

**Author:** [@nmwakde](https://discourse.nodered.org/u/nmwakde)\
**Replies:** 0\
**Last updated:** [15 July 2020 11:38 UTC](https://discourse.nodered.org/t/getting-error-in-sending-email/30125 "2020-07-15T11:38:26Z")

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Error: Invalid login: 535-5.7.8 Username and Password not accepted. Learn more at 535 5.7.8 https://support.google.com/mail/?p=BadCredentials b24sm2108080pgn.8 - gsmtp please guide

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## [Any volunteers for lipsync via tensorflow and opencv?](https://discourse.nodered.org/t/any-volunteers-for-lipsync-via-tensorflow-and-opencv/30124)

<div class="topic-metadata">

**Author:** [@BartButenaers](https://discourse.nodered.org/u/BartButenaers)\
**Replies:** 0\
**Last updated:** [15 July 2020 11:19 UTC](https://discourse.nodered.org/t/any-volunteers-for-lipsync-via-tensorflow-and-opencv/30124 "2020-07-15T11:19:55Z")

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Hi folks, Saw yesterday on Twitter a retweet from @dceejay about LipSync. From their Github page, it seems that there is a Tensorflow FaceMesh model available. I assume that can be used in node-red via the node-red-co…

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## [\[Announce/call for testing\] node-red-contrib-influxdb-backup](https://discourse.nodered.org/t/announce-call-for-testing-node-red-contrib-influxdb-backup/29550)

<div class="topic-metadata">

**Author:** [@Colin](https://discourse.nodered.org/u/Colin)\
**Replies:** 12\
**Last updated:** [15 July 2020 11:03 UTC](https://discourse.nodered.org/t/announce-call-for-testing-node-red-contrib-influxdb-backup/29550 "2020-07-15T11:03:25Z")

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This is a new node that makes a backup of an Influxdb database, using influxd backup. It also adds some added value to that command. The influxd backup command backs up one or all databases from a server to a folder an…

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## [Problem with line chart](https://discourse.nodered.org/t/problem-with-line-chart/30064)

<div class="topic-metadata">

**Author:** [@orion\_12](https://discourse.nodered.org/u/orion_12)\
**Replies:** 4\
**Last updated:** [15 July 2020 11:02 UTC](https://discourse.nodered.org/t/problem-with-line-chart/30064 "2020-07-15T11:02:14Z")

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Good day! I try to visualize data from Cloudant with Line Chart. Function code is: var time = \[\]; var temp = \[\]; var deviceid = \[\]; var time\_float = 0; var temp\_float = 0; var i = 0; var dataarray = \[\[\]\]; for (i=0; …

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## [Homebridge + NodeRed + MQTT + ESP8266 help](https://discourse.nodered.org/t/homebridge-nodered-mqtt-esp8266-help/30053)

<div class="topic-metadata">

**Author:** [@Dragos](https://discourse.nodered.org/u/Dragos)\
**Replies:** 5\
**Last updated:** [15 July 2020 10:17 UTC](https://discourse.nodered.org/t/homebridge-nodered-mqtt-esp8266-help/30053 "2020-07-15T10:17:59Z")

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Hello. I'm quite new to NodeRed and to programming in general. I've done a few automations in my home using ESP8266+Blynk, but I'm trying to convert my Arduino devices to different apps like Homekit, Google Home or Home …

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## [Ability to pause the debug window](https://discourse.nodered.org/t/ability-to-pause-the-debug-window/30112)

<div class="topic-metadata">

**Author:** [@C5H8NNaO4](https://discourse.nodered.org/u/C5H8NNaO4)\
**Replies:** 4\
**Last updated:** [15 July 2020 10:07 UTC](https://discourse.nodered.org/t/ability-to-pause-the-debug-window/30112 "2020-07-15T10:07:16Z")

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Is there any way to make the debug window stop scrolling? Unfortunately, it's almost impossible to inspect a message as is right now, because it just scrolls out of the view. When I clear the debug window and scroll up …

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## [Introduce Myself](https://discourse.nodered.org/t/introduce-myself/30115)

<div class="topic-metadata">

**Author:** [@thisisusername123](https://discourse.nodered.org/u/thisisusername123)\
**Replies:** 1\
**Last updated:** [15 July 2020 09:56 UTC](https://discourse.nodered.org/t/introduce-myself/30115 "2020-07-15T09:56:26Z")

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My name's Kien, I come from Ha Noi, I'm studying International Business at VNU and planning to take an IELTS exam next year. My hobbies are reading English books , playing video games and football, listening to US-UK mus…

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## [What am I supposed to do to contact someone who wrote a node?](https://discourse.nodered.org/t/what-am-i-supposed-to-do-to-contact-someone-who-wrote-a-node/20756)

<div class="topic-metadata">

**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 19\
**Last updated:** [15 July 2020 09:54 UTC](https://discourse.nodered.org/t/what-am-i-supposed-to-do-to-contact-someone-who-wrote-a-node/20756 "2020-07-15T09:54:51Z")

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Going to the library page and opening the github I can't see a place to submit a bug, or request a feature. This is the node: node-red-contrib-tasmota I am sure I've spoken to the person, but can't find how/where.

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## [Implementation of Rule engine](https://discourse.nodered.org/t/implementation-of-rule-engine/30060)

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**Author:** [@akhtar321h](https://discourse.nodered.org/u/akhtar321h)\
**Replies:** 5\
**Last updated:** [15 July 2020 07:14 UTC](https://discourse.nodered.org/t/implementation-of-rule-engine/30060 "2020-07-15T07:14:13Z")

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Hello Everyone, I am new to the rule engine. I want to work on rule engine. Please suggest me. How I can use rule engine in node red. Just like I want to compare some threshold and generate alerts. How i can implement…

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## [Slow Browser Response after Upgrade](https://discourse.nodered.org/t/slow-browser-response-after-upgrade/30097)

<div class="topic-metadata">

**Author:** [@Paulf007](https://discourse.nodered.org/u/Paulf007)\
**Replies:** 2\
**Last updated:** [15 July 2020 06:01 UTC](https://discourse.nodered.org/t/slow-browser-response-after-upgrade/30097 "2020-07-15T06:01:10Z")

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I upgraded to 1.0.5, I love the new features and well done to the team!! One thing that I have noticed is that my Chrome Browser will "hang" if I have moved to another tab and then back to node-red after a min or so. Th…

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## [Projects feature authentication problem](https://discourse.nodered.org/t/projects-feature-authentication-problem/22877)

<div class="topic-metadata">

**Author:** [@echtelerp](https://discourse.nodered.org/u/echtelerp)\
**Replies:** 22\
**Last updated:** [15 July 2020 06:10 UTC](https://discourse.nodered.org/t/projects-feature-authentication-problem/22877 "2020-07-15T06:10:03Z")

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Hi there, I hava a problem with adding a remote to my projects. in particular with the login I did create a new key, added it to GitHub,.. and so on. is there a way to debug, why it is not logging me in?= greetings…

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## [Getting the name of variable as value](https://discourse.nodered.org/t/getting-the-name-of-variable-as-value/29830)

<div class="topic-metadata">

**Author:** [@Chorum](https://discourse.nodered.org/u/Chorum)\
**Replies:** 12\
**Last updated:** [15 July 2020 06:03 UTC](https://discourse.nodered.org/t/getting-the-name-of-variable-as-value/29830 "2020-07-15T06:03:47Z")

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Hello There, i want to extract the Name of a variable and use it as a string. For instance i have multiple sets of temperatures. Every set has different names for the temperatures and the names could Change. So i woul…

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## [Changing background of any widget](https://discourse.nodered.org/t/changing-background-of-any-widget/30005)

<div class="topic-metadata">

**Author:** [@kvramji](https://discourse.nodered.org/u/kvramji)\
**Replies:** 1\
**Last updated:** [15 July 2020 05:12 UTC](https://discourse.nodered.org/t/changing-background-of-any-widget/30005 "2020-07-15T05:12:59Z")

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Okay, I'm a newbie to this forum. But i think i found out something which i have been looking for a while. I can see things change but i cannot implement this or i don't know where this needs to be done. I manually …

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## [OPC UA Communication slow](https://discourse.nodered.org/t/opc-ua-communication-slow/30096)

<div class="topic-metadata">

**Author:** [@abedgarr](https://discourse.nodered.org/u/abedgarr)\
**Replies:** 0\
**Last updated:** [15 July 2020 04:00 UTC](https://discourse.nodered.org/t/opc-ua-communication-slow/30096 "2020-07-15T04:00:30Z")

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I have managed to connect via OPC UA on node-red, however I am testing with uaExpert OPC UA, and I see that communication is not very fast. This is normal? Sending data from UaExperte OPC UA to the server mounted on nod…

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## [Basic Question about Node-RED Editor](https://discourse.nodered.org/t/basic-question-about-node-red-editor/30027)

<div class="topic-metadata">

**Author:** [@gbenham](https://discourse.nodered.org/u/gbenham)\
**Replies:** 2\
**Last updated:** [15 July 2020 01:46 UTC](https://discourse.nodered.org/t/basic-question-about-node-red-editor/30027 "2020-07-15T01:46:22Z")

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Hello. This is my first question and I'm sure it'll be very basic for any of you but it's pretty frustrating for me. I'm working out of the book "20 Easy Raspberry Pi Projects". I'm on Project 17 where they use Node-RED …

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## [Uibuilder - gauges](https://discourse.nodered.org/t/uibuilder-gauges/29910)

<div class="topic-metadata">

**Author:** [@martynwheeler](https://discourse.nodered.org/u/martynwheeler)\
**Replies:** 14\
**Last updated:** [15 July 2020 00:26 UTC](https://discourse.nodered.org/t/uibuilder-gauges/29910 "2020-07-15T00:26:06Z")

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Hi, This is aimed at uibuilder users but if you use vue.js you might be able to help. I am looking for a gauge that resembles vue-svg-gauge to put in my app. The aforementioned gauge is great as long as you don't want…

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## [Iterating through message's child array in SQL Query](https://discourse.nodered.org/t/iterating-through-messages-child-array-in-sql-query/30089)

<div class="topic-metadata">

**Author:** [@bppuck](https://discourse.nodered.org/u/bppuck)\
**Replies:** 2\
**Last updated:** [15 July 2020 00:18 UTC](https://discourse.nodered.org/t/iterating-through-messages-child-array-in-sql-query/30089 "2020-07-15T00:18:00Z")

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Hi, I need help figuring out how to instantiate a SQL variable with an array value, or find another method to accomplish iterating through a child array within the message. The results from my attempt are producing emp…

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## [Why TTN ceases Node-Red support](https://discourse.nodered.org/t/why-ttn-ceases-node-red-support/30084)

<div class="topic-metadata">

**Author:** [@EdK](https://discourse.nodered.org/u/EdK)\
**Replies:** 3\
**Last updated:** [14 July 2020 21:02 UTC](https://discourse.nodered.org/t/why-ttn-ceases-node-red-support/30084 "2020-07-14T21:02:43Z")

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I recently saw that The Things Network stopped all support for Node-Red. Also, Multitech has dropped Node-Red from their routers. Does anyone know why?

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## [Cannot get ui\_guage to display each message after specified delay time](https://discourse.nodered.org/t/cannot-get-ui-guage-to-display-each-message-after-specified-delay-time/30031)

<div class="topic-metadata">

**Author:** [@thank\_u](https://discourse.nodered.org/u/thank_u)\
**Replies:** 11\
**Last updated:** [14 July 2020 20:50 UTC](https://discourse.nodered.org/t/cannot-get-ui-guage-to-display-each-message-after-specified-delay-time/30031 "2020-07-14T20:50:13Z")

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My experiment is to display numbers from a csv file onto ui\_guage after a 5 sec delay.(code at end) Input to csv file is a multi-line msg.payload with three values per line.i.e, \`\`\`name1, numerical1,numerical11 \`\`\`name…

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