# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=598

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

**Page:** 599

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## [Node Red at enterprise level](https://discourse.nodered.org/t/node-red-at-enterprise-level/11205)

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**Author:** [@Immrgreen](https://discourse.nodered.org/u/Immrgreen)\
**Replies:** 24\
**Last updated:** [24 February 2021 22:11 UTC](https://discourse.nodered.org/t/node-red-at-enterprise-level/11205 "2021-02-24T22:11:55Z")

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I need a help regarding Node-red at enterprise level As I want to use Node-red to collect data from Siemens S7 PLC for my project I/O may vary from 10s to 1000s and I am gonna use Node-red on my desktop computer so I wan…

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## [Detect Payload is JSON object vs. String vs. Array](https://discourse.nodered.org/t/detect-payload-is-json-object-vs-string-vs-array/41565)

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**Author:** [@tree-frog](https://discourse.nodered.org/u/tree-frog)\
**Replies:** 18\
**Last updated:** [24 February 2021 22:04 UTC](https://discourse.nodered.org/t/detect-payload-is-json-object-vs-string-vs-array/41565 "2021-02-24T22:04:46Z")

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Upon using MQTT nodes, my testing has run up against a problem which is in the Forum post "MQTT-in node - autodetect string, buffer and JSON object". You can either have the MQTT-in force a JSON object or pass the objec…

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## [Play Music from Spotify on GH Speaker Group](https://discourse.nodered.org/t/play-music-from-spotify-on-gh-speaker-group/41591)

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**Author:** [@anqdc](https://discourse.nodered.org/u/anqdc)\
**Replies:** 0\
**Last updated:** [24 February 2021 21:28 UTC](https://discourse.nodered.org/t/play-music-from-spotify-on-gh-speaker-group/41591 "2021-02-24T21:28:34Z")

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Hello! I'm trying to trigger Spotify playback on my "Whole House" speaker group from Node Red... I assume this is possible with the right amount of coding knowledge? I have the Spotify node up and running, I can success…

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## [Formating input signal into Time Format](https://discourse.nodered.org/t/formating-input-signal-into-time-format/41544)

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**Author:** [@ChristophCaina](https://discourse.nodered.org/u/ChristophCaina)\
**Replies:** 2\
**Last updated:** [24 February 2021 19:16 UTC](https://discourse.nodered.org/t/formating-input-signal-into-time-format/41544 "2021-02-24T19:16:32Z")

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Hi, I am completely new to Node Red and want to use it to integrate some PLC Logic into HomeAssistant. My PLC is a Siemens LOGO!8 which controlls light and temperature of some terrariums - while HomeAssistant should be …

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## [Insert flat text and variable into sqlite db](https://discourse.nodered.org/t/insert-flat-text-and-variable-into-sqlite-db/41540)

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**Author:** [@Gino\_Schreuders](https://discourse.nodered.org/u/Gino_Schreuders)\
**Replies:** 3\
**Last updated:** [24 February 2021 18:50 UTC](https://discourse.nodered.org/t/insert-flat-text-and-variable-into-sqlite-db/41540 "2021-02-24T18:50:14Z")

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I run into a new problem :frowning:. I want to Scrap the data from another site. There are 3 rows(Firma,ArtikelNaam,Prijs) that I want to fill up. The Firma row has to contain "Jaggsalarm" on every column. The ArtikelNa…

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## [Solved: Formatting message with subtopics for mqtt](https://discourse.nodered.org/t/solved-formatting-message-with-subtopics-for-mqtt/41573)

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**Author:** [@ArcherThompson](https://discourse.nodered.org/u/ArcherThompson)\
**Replies:** 6\
**Last updated:** [24 February 2021 18:47 UTC](https://discourse.nodered.org/t/solved-formatting-message-with-subtopics-for-mqtt/41573 "2021-02-24T18:47:03Z")

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I am trying to send a mqtt message where I have a subtopic but I am having no luck getting my message formatted correctly. The main topic contains identifiers and the subtopic will be an array with the name/values. My e…

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## [Can't find correct settings.js - the one I found is not used](https://discourse.nodered.org/t/cant-find-correct-settings-js-the-one-i-found-is-not-used/41548)

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**Author:** [@americanium](https://discourse.nodered.org/u/americanium)\
**Replies:** 12\
**Last updated:** [24 February 2021 18:03 UTC](https://discourse.nodered.org/t/cant-find-correct-settings-js-the-one-i-found-is-not-used/41548 "2021-02-24T18:03:23Z")

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Hello! I have problems unsing node-red. I installed it on a raspberry pi with the "automatic" installer and all worked. The backend and the "ui" is accessable on port 1880. I wanted to set a username and password and…

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## [Convert switch state to binary and add seperate array](https://discourse.nodered.org/t/convert-switch-state-to-binary-and-add-seperate-array/41550)

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**Author:** [@vikingsraven](https://discourse.nodered.org/u/vikingsraven)\
**Replies:** 3\
**Last updated:** [24 February 2021 16:26 UTC](https://discourse.nodered.org/t/convert-switch-state-to-binary-and-add-seperate-array/41550 "2021-02-24T16:26:30Z")

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HI all, ive been working on this for a while now, im trying to control a can bus module. pulling data out fine and the rest is working , im not stuck on getting the control state out. i have 6 switches, each is initall…

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## [Stream data from node-red to c program?](https://discourse.nodered.org/t/stream-data-from-node-red-to-c-program/41266)

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**Author:** [@a1ex](https://discourse.nodered.org/u/a1ex)\
**Replies:** 23\
**Last updated:** [24 February 2021 15:55 UTC](https://discourse.nodered.org/t/stream-data-from-node-red-to-c-program/41266 "2021-02-24T15:55:57Z")

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Thanks to all who helped with the reverse question. I’d now like to stream data from node-red to a c program for use as input in computations. I’ll keep it simple. All I want is to inject a timestamp, stream it live to…

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## [PI zero - performance Tips Please](https://discourse.nodered.org/t/pi-zero-performance-tips-please/41305)

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**Author:** [@ScheepersJohan](https://discourse.nodered.org/u/ScheepersJohan)\
**Replies:** 25\
**Last updated:** [24 February 2021 15:47 UTC](https://discourse.nodered.org/t/pi-zero-performance-tips-please/41305 "2021-02-24T15:47:19Z")

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Hi, I have a PI Zero W and are running node-red with 32 nodes on it, it is very slow. Takes a good 15 to 30 sec to deploy the flow if not longer (most of the time longer and the dashboard even longer). Is this normal o…

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## [YI-HACK - Send video files to Telegram](https://discourse.nodered.org/t/yi-hack-send-video-files-to-telegram/41490)

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**Author:** [@Grist](https://discourse.nodered.org/u/Grist)\
**Replies:** 6\
**Last updated:** [24 February 2021 15:00 UTC](https://discourse.nodered.org/t/yi-hack-send-video-files-to-telegram/41490 "2021-02-24T15:00:26Z")

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Hi, I am using an YI camera that has the MQTT service enabled. When a motion is detected, then there is a topic on the MQTT broker with e.g. the following value: { "start":"2021-02-23T14:28:47+0100", "end":"2021-02-23T…

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## [Tcp in with fixed size instead of delimiter](https://discourse.nodered.org/t/tcp-in-with-fixed-size-instead-of-delimiter/41542)

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**Author:** [@jogibear9988](https://discourse.nodered.org/u/jogibear9988)\
**Replies:** 0\
**Last updated:** [24 February 2021 12:04 UTC](https://discourse.nodered.org/t/tcp-in-with-fixed-size-instead-of-delimiter/41542 "2021-02-24T12:04:02Z")

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is it possible to use "tcp in" with fixed size instead of delimiter ?

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## [How to combine 2 arrays into 1?](https://discourse.nodered.org/t/how-to-combine-2-arrays-into-1/41414)

<div class="topic-metadata">

**Author:** [@Gino\_Schreuders](https://discourse.nodered.org/u/Gino_Schreuders)\
**Replies:** 13\
**Last updated:** [24 February 2021 12:03 UTC](https://discourse.nodered.org/t/how-to-combine-2-arrays-into-1/41414 "2021-02-24T12:03:51Z")

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Dear reader, I'm a IT student and I'm pretty new to Node-Red. I would like to merge 2 arrays into 1 using a function. Here is my flow: \[{"id":"49b7aeb2.4e263","type":"tab","label":"Flow 3","disabled":false,"info":""},…

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## [Help with combine 2 functions](https://discourse.nodered.org/t/help-with-combine-2-functions/41532)

<div class="topic-metadata">

**Author:** [@sfedo](https://discourse.nodered.org/u/sfedo)\
**Replies:** 3\
**Last updated:** [24 February 2021 10:21 UTC](https://discourse.nodered.org/t/help-with-combine-2-functions/41532 "2021-02-24T10:21:15Z")

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Hello, I would like to combine two functions, but I have difficulties with it. I have the two functions: \<script\> function myFunction(x) { if (x.matches) { // If media query matches window.location.r…

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## [Failed to start server on windows 10](https://discourse.nodered.org/t/failed-to-start-server-on-windows-10/41537)

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**Author:** [@essability](https://discourse.nodered.org/u/essability)\
**Replies:** 2\
**Last updated:** [24 February 2021 09:56 UTC](https://discourse.nodered.org/t/failed-to-start-server-on-windows-10/41537 "2021-02-24T09:56:11Z")

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24 Feb 09:41:29 - \[info\] Welcome to Node-RED 24 Feb 09:41:29 - \[info\] Node-RED version: v1.0.6 24 Feb 09:41:29 - \[info\] Node.js version: v12.18.0 24 Feb 09:41:29 - \[info\] Windows\_NT 10.0.18363 x64 LE 24 Feb 09:41:30…

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## [Failure(Bad value)](https://discourse.nodered.org/t/failure-bad-value/41531)

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**Author:** [@Ward](https://discourse.nodered.org/u/Ward)\
**Replies:** 2\
**Last updated:** [24 February 2021 09:51 UTC](https://discourse.nodered.org/t/failure-bad-value/41531 "2021-02-24T09:51:51Z")

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Hi, When i looked at the node red debug screen i saw the following: But i don't find from wich node the problem is coming. If i click on "node: 49611514.d5bd4c" i get directed to my configuration nodes but i can't fi…

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## [Http control of a Marantz Amplifier](https://discourse.nodered.org/t/http-control-of-a-marantz-amplifier/41448)

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**Author:** [@gadjet](https://discourse.nodered.org/u/gadjet)\
**Replies:** 5\
**Last updated:** [24 February 2021 08:44 UTC](https://discourse.nodered.org/t/http-control-of-a-marantz-amplifier/41448 "2021-02-24T08:44:22Z")

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Hi, I just installed the Marantz http control node, I realise it's quite old now but has anyone got this working? I have an NR1510 Receiver and I can view and control it from my browser on its IP address and port 10443 …

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## [Is there a node-red backend engine?](https://discourse.nodered.org/t/is-there-a-node-red-backend-engine/41403)

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**Author:** [@ddk](https://discourse.nodered.org/u/ddk)\
**Replies:** 11\
**Last updated:** [24 February 2021 07:37 UTC](https://discourse.nodered.org/t/is-there-a-node-red-backend-engine/41403 "2021-02-24T07:37:40Z")

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Hi I just started using node-red recently. Is there such a back-end engine that can directly parse the node-red workflow? In this way, workflow design and debugging can be done in the cloud, and then directly deployed …

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## [Ui\_table formatting and cell input](https://discourse.nodered.org/t/ui-table-formatting-and-cell-input/41351)

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**Author:** [@notnice](https://discourse.nodered.org/u/notnice)\
**Replies:** 8\
**Last updated:** [24 February 2021 07:09 UTC](https://discourse.nodered.org/t/ui-table-formatting-and-cell-input/41351 "2021-02-24T07:09:05Z")

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Starting with the basics of table formatting - just trying to turn off table header in inject function on an existing table: msg.ui\_control = {}; msg.ui\_control.tabulator = { "headerVisible": false } return msg.ui\_cont…

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## [NPM install of kevinGodell / node-red-contrib-ui-mp4frag](https://discourse.nodered.org/t/npm-install-of-kevingodell-node-red-contrib-ui-mp4frag/41523)

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**Author:** [@afiq93](https://discourse.nodered.org/u/afiq93)\
**Replies:** 1\
**Last updated:** [24 February 2021 06:02 UTC](https://discourse.nodered.org/t/npm-install-of-kevingodell-node-red-contrib-ui-mp4frag/41523 "2021-02-24T06:02:14Z")

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Hi. I try to install this module but having error. Can somebody help me? NPM install of kevinGodell / node-red-contrib-ui-mp4frag

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## [Login for Dashboard UI \*without httpNodeAuth\*](https://discourse.nodered.org/t/login-for-dashboard-ui-without-httpnodeauth/41511)

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**Author:** [@philipsd6](https://discourse.nodered.org/u/philipsd6)\
**Replies:** 6\
**Last updated:** [24 February 2021 01:08 UTC](https://discourse.nodered.org/t/login-for-dashboard-ui-without-httpnodeauth/41511 "2021-02-24T01:08:03Z")

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I think that a typical setup of Node-RED uses the Dashboard UI, as well as some webhooks for various services. I find it very surprising that no-one has ever (as far as I could find) provided a reasonable solution for re…

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## [Can't toggle UI Worldmap node](https://discourse.nodered.org/t/cant-toggle-ui-worldmap-node/41388)

<div class="topic-metadata">

**Author:** [@Foobar](https://discourse.nodered.org/u/Foobar)\
**Replies:** 3\
**Last updated:** [24 February 2021 00:52 UTC](https://discourse.nodered.org/t/cant-toggle-ui-worldmap-node/41388 "2021-02-24T00:52:22Z")

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I have the same problem as this poster had initially (before the topic got sidetracked by another); the ui\_worldmap node is toggled off by default and I can't turn it back on. I've had this problem twice now. The firs…

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## [Could MQTT -\> QoS 1/2 or retain flag fix my problem? / ESP](https://discourse.nodered.org/t/could-mqtt-qos-1-2-or-retain-flag-fix-my-problem-esp/41492)

<div class="topic-metadata">

**Author:** [@WhiteLion](https://discourse.nodered.org/u/WhiteLion)\
**Replies:** 5\
**Last updated:** [23 February 2021 20:10 UTC](https://discourse.nodered.org/t/could-mqtt-qos-1-2-or-retain-flag-fix-my-problem-esp/41492 "2021-02-23T20:10:20Z")

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Hiho folks & friends, after expanding IoT devices @ my home more and more I notice a problem with my switches/relays: They trun on and ignore the mqtt-command to turn off. This happens very seldom but its annoying if i…

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## [MQTT and Homebridge](https://discourse.nodered.org/t/mqtt-and-homebridge/41508)

<div class="topic-metadata">

**Author:** [@bskitter](https://discourse.nodered.org/u/bskitter)\
**Replies:** 1\
**Last updated:** [23 February 2021 19:50 UTC](https://discourse.nodered.org/t/mqtt-and-homebridge/41508 "2021-02-23T19:50:59Z")

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Hello, Today I tried to add a new device to my Homebridge via Nodered and I ended up crashing Homebridge. I am using Homebridge-MQTT to interface Nodered and Homebridge but it seems like something changed. Whenever Ho…

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## [Creating global variables from JSON object](https://discourse.nodered.org/t/creating-global-variables-from-json-object/41497)

<div class="topic-metadata">

**Author:** [@Sensors](https://discourse.nodered.org/u/Sensors)\
**Replies:** 6\
**Last updated:** [23 February 2021 17:05 UTC](https://discourse.nodered.org/t/creating-global-variables-from-json-object/41497 "2021-02-23T17:05:24Z")

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Hello, I'm trying to create a bit of a system to store configuration data for my project, but allow it to be edited through the node red dashbord interface. I think the best option to edit it is a form with a multi-lin…

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## [I2C missing error after installation](https://discourse.nodered.org/t/i2c-missing-error-after-installation/41478)

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**Author:** [@ankit](https://discourse.nodered.org/u/ankit)\
**Replies:** 6\
**Last updated:** [23 February 2021 17:25 UTC](https://discourse.nodered.org/t/i2c-missing-error-after-installation/41478 "2021-02-23T17:25:09Z")

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Hi all,I want to implement i2c node in my project but after installation, it is showing that it is missing showing a warning in the manage pallete. Is there any problem with that node? Can anyone help? I am attaching th…

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## [Joining messages with different intervals](https://discourse.nodered.org/t/joining-messages-with-different-intervals/41359)

<div class="topic-metadata">

**Author:** [@MaxSchaaper](https://discourse.nodered.org/u/MaxSchaaper)\
**Replies:** 4\
**Last updated:** [23 February 2021 16:44 UTC](https://discourse.nodered.org/t/joining-messages-with-different-intervals/41359 "2021-02-23T16:44:49Z")

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Hello, Using Node-Red to readout our smart- energy meter. Messages coming in through Mqtt. Electricity info comes in once every second. Gas usage info comes once every 5 minutes. I want to join only the last messages …

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## [Pass S7 variable to Mysql query](https://discourse.nodered.org/t/pass-s7-variable-to-mysql-query/41484)

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**Author:** [@Eimerich](https://discourse.nodered.org/u/Eimerich)\
**Replies:** 3\
**Last updated:** [23 February 2021 14:59 UTC](https://discourse.nodered.org/t/pass-s7-variable-to-mysql-query/41484 "2021-02-23T14:59:03Z")

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Hi there, I've go through different posts here, but wasn't able to find a proper solution. It's my first go with Node-Red and my objective is the following: I have sensors variables from S7 PLC from which I have to get…

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## [Can I copy paste the raspberry pi SD card and use node red flow?](https://discourse.nodered.org/t/can-i-copy-paste-the-raspberry-pi-sd-card-and-use-node-red-flow/41486)

<div class="topic-metadata">

**Author:** [@HZB](https://discourse.nodered.org/u/HZB)\
**Replies:** 1\
**Last updated:** [23 February 2021 13:51 UTC](https://discourse.nodered.org/t/can-i-copy-paste-the-raspberry-pi-sd-card-and-use-node-red-flow/41486 "2021-02-23T13:51:03Z")

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Hi, I have to setup multiple R Pi for my project and mostly all flows are the same. can i copy and paste the new memory card with the data from my card of R pi in which my current flow is? any recommendation?

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## [Waiting for parallel processes to complete in order?](https://discourse.nodered.org/t/waiting-for-parallel-processes-to-complete-in-order/41159)

<div class="topic-metadata">

**Author:** [@Sensors](https://discourse.nodered.org/u/Sensors)\
**Replies:** 6\
**Last updated:** [23 February 2021 13:43 UTC](https://discourse.nodered.org/t/waiting-for-parallel-processes-to-complete-in-order/41159 "2021-02-23T13:43:22Z")

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I have run into a bit of a problem where I'm trying to wait on two things to complete before I move to the next step in a sequential process. Ordinarily a join node would work, with both inputs fed in and set the node to…

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