# Latest

**URL:** https://discourse.nodered.org/latest.md?page=662

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

**Page:** 663

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## [Deploy node red on Kubernetes with custom settings.js](https://discourse.nodered.org/t/deploy-node-red-on-kubernetes-with-custom-settings-js/56057)

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**Author:** [@rorokoko](https://discourse.nodered.org/u/rorokoko)\
**Replies:** 1\
**Last updated:** [3 January 2022 20:11 UTC](https://discourse.nodered.org/t/deploy-node-red-on-kubernetes-with-custom-settings-js/56057 "2022-01-03T20:11:56Z")

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Hi guys, What is the easiest way to deploy node red docker on K8 using custom settings.js and some additional files? One way that i can think of is to first create a persistent volume and paste the files on to it, and t…

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## [UI\_Builder - Study material](https://discourse.nodered.org/t/ui-builder-study-material/56036)

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**Author:** [@smanjunath211](https://discourse.nodered.org/u/smanjunath211)\
**Replies:** 2\
**Last updated:** [3 January 2022 16:40 UTC](https://discourse.nodered.org/t/ui-builder-study-material/56036 "2022-01-03T16:40:47Z")

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Hi, Been searching for a good source material to get around understanding and executing UI\_Builder. request someone to please provide links. and may be dependent and pre-requisite knowledge base materials also for the s…

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## [Array Split trouble](https://discourse.nodered.org/t/array-split-trouble/56041)

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**Author:** [@Dave](https://discourse.nodered.org/u/Dave)\
**Replies:** 7\
**Last updated:** [3 January 2022 15:54 UTC](https://discourse.nodered.org/t/array-split-trouble/56041 "2022-01-03T15:54:51Z")

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I am having trouble splitting an array and converting result to a number as follows. the main array consists of 185 elements I can split the main array into the element I want with the following ... var parts = msg.pa…

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## [Rain sensor node](https://discourse.nodered.org/t/rain-sensor-node/56027)

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**Author:** [@hasan\_s\_m](https://discourse.nodered.org/u/hasan_s_m)\
**Replies:** 8\
**Last updated:** [3 January 2022 14:48 UTC](https://discourse.nodered.org/t/rain-sensor-node/56027 "2022-01-03T14:48:59Z")

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Hi, Everyone, Now I am doing one project with raspberry pi and node red. Now, I am working with rain sensor .But I can not find relevant node for rain detect sensor. Does node red have any node that can detect the rain …

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## [Predefined node field input types](https://discourse.nodered.org/t/predefined-node-field-input-types/55959)

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**Author:** [@borpin](https://discourse.nodered.org/u/borpin)\
**Replies:** 8\
**Last updated:** [3 January 2022 14:12 UTC](https://discourse.nodered.org/t/predefined-node-field-input-types/55959 "2022-01-03T14:12:30Z")

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Is there a list of the available input types somewhere so these can be included in an input definition? This is from the inject node so I suspect it includes all the predefined ones.

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## [Unable to get current node-red flows using Admin API GET Method](https://discourse.nodered.org/t/unable-to-get-current-node-red-flows-using-admin-api-get-method/56038)

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**Author:** [@abhilash-ingale](https://discourse.nodered.org/u/abhilash-ingale)\
**Replies:** 2\
**Last updated:** [3 January 2022 14:12 UTC](https://discourse.nodered.org/t/unable-to-get-current-node-red-flows-using-admin-api-get-method/56038 "2022-01-03T14:12:23Z")

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Hi all, I am running Node-Red 2.0.6 on a Raspberry Pi 4 and want to get all the currently deployed flows as a JSON object using the HTTP Admin API GET Method. For this, I used an http request node and selected GET meth…

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## [New behavior of wires](https://discourse.nodered.org/t/new-behavior-of-wires/55900)

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**Author:** [@uli-rpi](https://discourse.nodered.org/u/uli-rpi)\
**Replies:** 9\
**Last updated:** [3 January 2022 13:49 UTC](https://discourse.nodered.org/t/new-behavior-of-wires/55900 "2022-01-03T13:49:14Z")

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An idea for the behavior of connections. A connection between nodes can have a color depending on one or more properties. e.g. msg.payload = true -\> color = green, msg.payload = false -\> color = red, ..... The color an…

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## [How to catch this error?](https://discourse.nodered.org/t/how-to-catch-this-error/56034)

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**Author:** [@sfedo](https://discourse.nodered.org/u/sfedo)\
**Replies:** 2\
**Last updated:** [3 January 2022 12:55 UTC](https://discourse.nodered.org/t/how-to-catch-this-error/56034 "2022-01-03T12:55:22Z")

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Hello I am using this library: node-red-contrib-cloud-firestore to connect with my firestore database. It works pretty good, but sometimes I get some unexpected error: As you can see, it's: Failed to start HTTP/2 s…

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## [How to create messages from an array with a variable number of elements](https://discourse.nodered.org/t/how-to-create-messages-from-an-array-with-a-variable-number-of-elements/55991)

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**Author:** [@Bodad](https://discourse.nodered.org/u/Bodad)\
**Replies:** 13\
**Last updated:** [3 January 2022 11:39 UTC](https://discourse.nodered.org/t/how-to-create-messages-from-an-array-with-a-variable-number-of-elements/55991 "2022-01-03T11:39:33Z")

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Hi, I have a payload which contains Smart meter readings in sub-arrays in the payload.data array. The payload.data array can contain a variable number of sub-arrays, depending on when the last update took place. I am t…

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## [Need some help configuring mqtt connection](https://discourse.nodered.org/t/need-some-help-configuring-mqtt-connection/56019)

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**Author:** [@Bjornie](https://discourse.nodered.org/u/Bjornie)\
**Replies:** 12\
**Last updated:** [3 January 2022 11:31 UTC](https://discourse.nodered.org/t/need-some-help-configuring-mqtt-connection/56019 "2022-01-03T11:31:24Z")

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Hi Everyone, I am trying to configure a API connection to my home automation, The manufacturer provided me with a CA-chain.cert.perm file, allong with a username and password. But no matter how i configure the mqtt no…

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## [Node-red-contrib-discovery2mqtt nodes](https://discourse.nodered.org/t/node-red-contrib-discovery2mqtt-nodes/55561)

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**Author:** [@bobcroft](https://discourse.nodered.org/u/bobcroft)\
**Replies:** 7\
**Last updated:** [3 January 2022 11:06 UTC](https://discourse.nodered.org/t/node-red-contrib-discovery2mqtt-nodes/55561 "2022-01-03T11:06:32Z")

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Is there anybody using these nodes? There doesn't seem to be much information found by Google search. I have spent about half a day trying to get theese nodes to work. Does anybody have working flow thay could share p…

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## [Read Omron PLC using node-red-contrib-omron-fins](https://discourse.nodered.org/t/read-omron-plc-using-node-red-contrib-omron-fins/56020)

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**Author:** [@yaseralie](https://discourse.nodered.org/u/yaseralie)\
**Replies:** 0\
**Last updated:** [3 January 2022 00:34 UTC](https://discourse.nodered.org/t/read-omron-plc-using-node-red-contrib-omron-fins/56020 "2022-01-03T00:34:55Z")

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I made video tutorial how to read Omron PLC using node-red-contrib-omron-fins, from basic reading, and show on the dashboard the result. I did the test using OMRON SYSMAC CS1H-CPU64H and node-red on Windows10. Video: N…

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## [Reading multiple items with node-red-contrib-opcua](https://discourse.nodered.org/t/reading-multiple-items-with-node-red-contrib-opcua/54259)

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**Author:** [@OriolFM](https://discourse.nodered.org/u/OriolFM)\
**Replies:** 5\
**Last updated:** [3 January 2022 06:54 UTC](https://discourse.nodered.org/t/reading-multiple-items-with-node-red-contrib-opcua/54259 "2022-01-03T06:54:36Z")

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I am including several production lines into my data-gathering program. They use OPC-UA to offer me the information. Single parameter readings are not a problem anymore: I send the nodeid for the parameter I want to read…

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## [Looking for someone to work on an MVP](https://discourse.nodered.org/t/looking-for-someone-to-work-on-an-mvp/55566)

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**Author:** [@steve1215](https://discourse.nodered.org/u/steve1215)\
**Replies:** 7\
**Last updated:** [3 January 2022 06:53 UTC](https://discourse.nodered.org/t/looking-for-someone-to-work-on-an-mvp/55566 "2022-01-03T06:53:57Z")

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Hi, Looking for someone to create a NodeRed powered backend for an MVP. Ideally with experience integrating REST APIs and a bonus would be exposure to the Firebase realtime DB. Please get in touch if this is of intere…

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## [Ng-model in ui template](https://discourse.nodered.org/t/ng-model-in-ui-template/55976)

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**Author:** [@seanlholt](https://discourse.nodered.org/u/seanlholt)\
**Replies:** 1\
**Last updated:** [2 January 2022 23:50 UTC](https://discourse.nodered.org/t/ng-model-in-ui-template/55976 "2022-01-02T23:50:05Z")

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I'm trying to send updated values in msg.payload. I have a custom built input range slider with dual thumb handles. I've created a function scope.watch to send out the updated values. The INPUT selector I added ng-mod…

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## [\[Alexa\] Getting started "Running on Amazon Web Services" not work = Manage app not install](https://discourse.nodered.org/t/alexa-getting-started-running-on-amazon-web-services-not-work-manage-app-not-install/56016)

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**Author:** [@rafaelgit](https://discourse.nodered.org/u/rafaelgit)\
**Replies:** 3\
**Last updated:** [2 January 2022 22:27 UTC](https://discourse.nodered.org/t/alexa-getting-started-running-on-amazon-web-services-not-work-manage-app-not-install/56016 "2022-01-02T22:27:28Z")

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Hello, there. I'm new to using node red and started following this tutorial for installing on AWS to use integrated with Alexa: https://nodered.org/docs/getting-started/aws I performed all the steps correctly. But whe…

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## [How to do a simple sum of 2 msgs](https://discourse.nodered.org/t/how-to-do-a-simple-sum-of-2-msgs/5382)

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**Author:** [@ederpereira92](https://discourse.nodered.org/u/ederpereira92)\
**Replies:** 27\
**Last updated:** [2 January 2022 21:30 UTC](https://discourse.nodered.org/t/how-to-do-a-simple-sum-of-2-msgs/5382 "2022-01-02T21:30:02Z")

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Hello, Im working in my final paper and I find myself in a situation I cant solve a simple sum of two mqtt messages. Could someone help-me?

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## [Uibuilder + apexCharts not working](https://discourse.nodered.org/t/uibuilder-apexcharts-not-working/56011)

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**Author:** [@ChankyTheConqueror](https://discourse.nodered.org/u/ChankyTheConqueror)\
**Replies:** 3\
**Last updated:** [2 January 2022 21:34 UTC](https://discourse.nodered.org/t/uibuilder-apexcharts-not-working/56011 "2022-01-02T21:34:04Z")

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Hi guys, i'm trying a zoomable time series demo from apex zoomable time series but some how it's not working and i cant really debug because of my limited javascript + html skillls, no error is reported. What i have d…

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## [World Map Great Circle Lines](https://discourse.nodered.org/t/world-map-great-circle-lines/55842)

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**Author:** [@aa0z](https://discourse.nodered.org/u/aa0z)\
**Replies:** 16\
**Last updated:** [2 January 2022 21:19 UTC](https://discourse.nodered.org/t/world-map-great-circle-lines/55842 "2022-01-02T21:19:02Z")

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I took a look around the web, but couldn't find a definite answer, so I'm posting here. I'm looking at producing the following type map with the worldmap node. If it's not a current feature, I'd like to put in a reques…

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## [Water Level Sensor converter (From Arduino to Raspberry )](https://discourse.nodered.org/t/water-level-sensor-converter-from-arduino-to-raspberry/56010)

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**Author:** [@momo\_98](https://discourse.nodered.org/u/momo_98)\
**Replies:** 1\
**Last updated:** [2 January 2022 19:28 UTC](https://discourse.nodered.org/t/water-level-sensor-converter-from-arduino-to-raspberry/56010 "2022-01-02T19:28:58Z")

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Hi, we have a problem with converter the data acquired from a water level sensor, The work is: Water level Sensor send data to arduino uno ( the unity of water is "ml" ) and then through i2c the arduino uno send data …

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## [Writing to file in csv format from input text in dashboard](https://discourse.nodered.org/t/writing-to-file-in-csv-format-from-input-text-in-dashboard/56007)

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**Author:** [@imanipourmeysam](https://discourse.nodered.org/u/imanipourmeysam)\
**Replies:** 2\
**Last updated:** [2 January 2022 19:26 UTC](https://discourse.nodered.org/t/writing-to-file-in-csv-format-from-input-text-in-dashboard/56007 "2022-01-02T19:26:25Z")

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Hello, I am trying to make a flow that write the input texts in the dashboard to a file with csv format. I am new to programming and I made this flow : type or paste code here I don't know how I can manage the msg.p…

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## [How to select current object from an array?](https://discourse.nodered.org/t/how-to-select-current-object-from-an-array/56005)

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**Author:** [@niklasn](https://discourse.nodered.org/u/niklasn)\
**Replies:** 7\
**Last updated:** [2 January 2022 19:23 UTC](https://discourse.nodered.org/t/how-to-select-current-object-from-an-array/56005 "2022-01-02T19:23:21Z")

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Hi, obvious newbie-post, but with too little experience from JS, one has to start somewhere... I have an array of objects as per below showing the price of electricity every hour. The array contains this day and tomorr…

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## [Writing to a file in csv format from input text](https://discourse.nodered.org/t/writing-to-a-file-in-csv-format-from-input-text/56009)

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**Author:** [@imanipourmeysam](https://discourse.nodered.org/u/imanipourmeysam)\
**Replies:** 0\
**Last updated:** [2 January 2022 19:13 UTC](https://discourse.nodered.org/t/writing-to-a-file-in-csv-format-from-input-text/56009 "2022-01-02T19:13:54Z")

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Hi, I am trying to make a dashboard that save the input text into a file in CSV format, or append the data to an existing format. Here is my flow : flows (1).json (4.8 KB) the file will be like this : name1, familynam…

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## [Need to specify subprotocol for WebSocket connection](https://discourse.nodered.org/t/need-to-specify-subprotocol-for-websocket-connection/9466)

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**Author:** [@ChipsNSalsa](https://discourse.nodered.org/u/ChipsNSalsa)\
**Replies:** 9\
**Last updated:** [2 January 2022 17:05 UTC](https://discourse.nodered.org/t/need-to-specify-subprotocol-for-websocket-connection/9466 "2022-01-02T17:05:55Z")

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The server that I am working with requires the Sec-WebSocket-Protocol request header field be set to a non-standard (not registered) subprotocol in the client request to upgrade to WebSockets. No matter what I've tried, …

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## [How to manage multiple message in one node(function node)](https://discourse.nodered.org/t/how-to-manage-multiple-message-in-one-node-function-node/55989)

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**Author:** [@imanipourmeysam](https://discourse.nodered.org/u/imanipourmeysam)\
**Replies:** 3\
**Last updated:** [2 January 2022 15:32 UTC](https://discourse.nodered.org/t/how-to-manage-multiple-message-in-one-node-function-node/55989 "2022-01-02T15:32:40Z")

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Hello, I am very new to node red and programming and I have a project to do. The project is that we have options to select and based to these selections we will have an output in the dashboard. The options are in a CS…

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## [SCADA in node-red using node SVG](https://discourse.nodered.org/t/scada-in-node-red-using-node-svg/55996)

<div class="topic-metadata">

**Author:** [@yaseralie](https://discourse.nodered.org/u/yaseralie)\
**Replies:** 1\
**Last updated:** [2 January 2022 15:03 UTC](https://discourse.nodered.org/t/scada-in-node-red-using-node-svg/55996 "2022-01-02T15:03:20Z")

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I made video tutorial how to make SCADA in node-red using node SVG. Link: Node Red: Machine Monitoring System SCADA-Like - YouTube This dashboard for machine monitoring system dashboard simulation. I use inkspace appl…

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## [Cryptocurrency Exchange Array (searching, tabling, etc)](https://discourse.nodered.org/t/cryptocurrency-exchange-array-searching-tabling-etc/55579)

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**Author:** [@interscope101](https://discourse.nodered.org/u/interscope101)\
**Replies:** 20\
**Last updated:** [2 January 2022 14:06 UTC](https://discourse.nodered.org/t/cryptocurrency-exchange-array-searching-tabling-etc/55579 "2022-01-02T14:06:12Z")

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Hi there, I' just started using Node and spent a week struggling to implement the following "basic" config - finally decided to ask for help :slight\_smile: Using the ccxt-api-v2 node I check several exchanges if a s…

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## ['ET Display Home' a flow to help manage your ESPeasy, Sonoff/Tasmota and Homie flashed devices (now on GitHub)](https://discourse.nodered.org/t/et-display-home-a-flow-to-help-manage-your-espeasy-sonoff-tasmota-and-homie-flashed-devices-now-on-github/1893)

<div class="topic-metadata">

**Author:** [@zenofmud](https://discourse.nodered.org/u/zenofmud)\
**Replies:** 90\
**Last updated:** [2 January 2022 12:43 UTC](https://discourse.nodered.org/t/et-display-home-a-flow-to-help-manage-your-espeasy-sonoff-tasmota-and-homie-flashed-devices-now-on-github/1893 "2022-01-02T12:43:46Z")

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This project is designed to help you keep your Wemos and Sonoff devices under control by providing a dashboard with a link to the latest ESPeasy ano/or Sonoff Tasmota release, the node name, status, current software ver…

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## [Momentary button on Dashboard](https://discourse.nodered.org/t/momentary-button-on-dashboard/4906)

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**Author:** [@martinschki](https://discourse.nodered.org/u/martinschki)\
**Replies:** 13\
**Last updated:** [2 January 2022 11:19 UTC](https://discourse.nodered.org/t/momentary-button-on-dashboard/4906 "2022-01-02T11:19:15Z")

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Hello, I'm trying to create a momentary button on the dashboard. When I press it, payload should go "true", when I let go, "false" this doesn't do the trick as it sends both after I release the button: \[{"id":"c07efd…

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## [Setup node variables in function node on start](https://discourse.nodered.org/t/setup-node-variables-in-function-node-on-start/55984)

<div class="topic-metadata">

**Author:** [@BartButenaers](https://discourse.nodered.org/u/BartButenaers)\
**Replies:** 3\
**Last updated:** [2 January 2022 09:06 UTC](https://discourse.nodered.org/t/setup-node-variables-in-function-node-on-start/55984 "2022-01-02T09:06:14Z")

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Hi folks, My first question in 2022, and it is a noob level one. First time that I use the "On start" tabsheet in the function node... All my code in the "On start" tabsheet is executed correctly, but when I add this: …

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