# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=570

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

**Page:** 571

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## [Node-red 1.3.2 MQTT LWT regression](https://discourse.nodered.org/t/node-red-1-3-2-mqtt-lwt-regression/44184)

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**Author:** [@Colin](https://discourse.nodered.org/u/Colin)\
**Replies:** 2\
**Last updated:** [15 April 2021 08:07 UTC](https://discourse.nodered.org/t/node-red-1-3-2-mqtt-lwt-regression/44184 "2021-04-15T08:07:25Z")

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I upgraded a system recently to node-red 1.3.2 and have just noticed that the LWT offline message sent when node-red is shut down normally is not being sent. Strictly LWT is working, as that is the message sent when nod…

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## [Flow Exception Recovery For Dynamic RegEx Syntax Error](https://discourse.nodered.org/t/flow-exception-recovery-for-dynamic-regex-syntax-error/42235)

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**Author:** [@plfinch](https://discourse.nodered.org/u/plfinch)\
**Replies:** 5\
**Last updated:** [15 April 2021 05:40 UTC](https://discourse.nodered.org/t/flow-exception-recovery-for-dynamic-regex-syntax-error/42235 "2021-04-15T05:40:32Z")

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While testing different regex for THIS TOPIC, I created a flow to permit easy entry of strings and regex for validation in a Switch Node. This worked great until I put in an invalid regex. This caused an exception ("Synt…

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## [MQTT on bluemix doesn't work](https://discourse.nodered.org/t/mqtt-on-bluemix-doesnt-work/44195)

<div class="topic-metadata">

**Author:** [@HZB](https://discourse.nodered.org/u/HZB)\
**Replies:** 1\
**Last updated:** [14 April 2021 20:14 UTC](https://discourse.nodered.org/t/mqtt-on-bluemix-doesnt-work/44195 "2021-04-14T20:14:18Z")

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I am using test.mosquitto.org for MQTT. It was working perfectly fine. Then i redeploy the node-red on bluemix. After that MQTT is down. It's keep on showing connecting I have another node red instance running from Ra…

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## [Limit Rows in UI\_Table](https://discourse.nodered.org/t/limit-rows-in-ui-table/44171)

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**Author:** [@aa0z](https://discourse.nodered.org/u/aa0z)\
**Replies:** 4\
**Last updated:** [14 April 2021 18:42 UTC](https://discourse.nodered.org/t/limit-rows-in-ui-table/44171 "2021-04-14T18:42:11Z")

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I have a flow that uses ui\_table to display data. It's pulling from a internet source and after a period of time my Chrome tab that displays the table becomes unresponsive. I'm thinking there is a limit on how much "in…

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## [NgrokAuth support](https://discourse.nodered.org/t/ngrokauth-support/44051)

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**Author:** [@perryjamessugden](https://discourse.nodered.org/u/perryjamessugden)\
**Replies:** 3\
**Last updated:** [14 April 2021 17:11 UTC](https://discourse.nodered.org/t/ngrokauth-support/44051 "2021-04-14T17:11:14Z")

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Hi I've just added Ngrok to test sending a custom rest api over the internet. I've followed a few steps to get setup, but run into an issue when I deploying. ' Flows stopped due to missing node types. ngrokauth ngro…

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## [Forever: on Windows](https://discourse.nodered.org/t/forever-on-windows/44182)

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**Author:** [@GBarlocco](https://discourse.nodered.org/u/GBarlocco)\
**Replies:** 1\
**Last updated:** [14 April 2021 15:25 UTC](https://discourse.nodered.org/t/forever-on-windows/44182 "2021-04-14T15:25:53Z")

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hello!!, how I can run forever node -red on windows? thanks!

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## [Amazon EC2 Ubuntu Logs](https://discourse.nodered.org/t/amazon-ec2-ubuntu-logs/44185)

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**Author:** [@TarkIV](https://discourse.nodered.org/u/TarkIV)\
**Replies:** 0\
**Last updated:** [14 April 2021 15:15 UTC](https://discourse.nodered.org/t/amazon-ec2-ubuntu-logs/44185 "2021-04-14T15:15:18Z")

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Hi yall, I'm trying to find the logs on an Amazon EC2 Ubuntu Instance to debug an issue that I'm sure I'll post about as soon as I can read the logs. I've read up on logging, but that doesn't quite solve my problem as I…

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## [How to use MQTT Out](https://discourse.nodered.org/t/how-to-use-mqtt-out/44174)

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**Author:** [@sefaguntepe](https://discourse.nodered.org/u/sefaguntepe)\
**Replies:** 1\
**Last updated:** [14 April 2021 15:15 UTC](https://discourse.nodered.org/t/how-to-use-mqtt-out/44174 "2021-04-14T15:15:01Z")

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Hello, I would like to display a value on the LCD screen connected to Wemos via Node-red. How do I do it via MQTT-out? Any different suggestions?

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## [Node-RED Projects & Config Node Issues?](https://discourse.nodered.org/t/node-red-projects-config-node-issues/43928)

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**Author:** [@dudleyjosh](https://discourse.nodered.org/u/dudleyjosh)\
**Replies:** 5\
**Last updated:** [14 April 2021 15:00 UTC](https://discourse.nodered.org/t/node-red-projects-config-node-issues/43928 "2021-04-14T15:00:51Z")

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I have a situation where I want to share/use the exact same flow across multiple devices... so naturally, using projects and then cloning to each device seems pretty straight forward. The issue I run into is that each d…

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## [Combine multiple mqtt messages into one measurement for influx](https://discourse.nodered.org/t/combine-multiple-mqtt-messages-into-one-measurement-for-influx/44176)

<div class="topic-metadata">

**Author:** [@connectix](https://discourse.nodered.org/u/connectix)\
**Replies:** 1\
**Last updated:** [14 April 2021 14:37 UTC](https://discourse.nodered.org/t/combine-multiple-mqtt-messages-into-one-measurement-for-influx/44176 "2021-04-14T14:37:36Z")

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As a beginner with node-red I don't know where to start so some help would be very appreciated. I have many sensors reporting themselves by publishing to mqtt topics. They send the following data: 10\_52\_1C\_66\_1D\_CC/dsm…

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## [Text to Speech or Audio Alert for an Android Client](https://discourse.nodered.org/t/text-to-speech-or-audio-alert-for-an-android-client/44170)

<div class="topic-metadata">

**Author:** [@eddee54455](https://discourse.nodered.org/u/eddee54455)\
**Replies:** 1\
**Last updated:** [14 April 2021 14:28 UTC](https://discourse.nodered.org/t/text-to-speech-or-audio-alert-for-an-android-client/44170 "2021-04-14T14:28:33Z")

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Good day ladies and gents, I am looking for a simple, non-internet, method of raising an audio alert (TTS/WAV/MP3/etc) on an android device. I would be happy to load any client required on said android device to allow …

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## [Transfer mqtt username/password as part of flow.json file](https://discourse.nodered.org/t/transfer-mqtt-username-password-as-part-of-flow-json-file/44161)

<div class="topic-metadata">

**Author:** [@proloy03](https://discourse.nodered.org/u/proloy03)\
**Replies:** 4\
**Last updated:** [14 April 2021 13:26 UTC](https://discourse.nodered.org/t/transfer-mqtt-username-password-as-part-of-flow-json-file/44161 "2021-04-14T13:26:03Z")

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I have a node red flow that involves sending data to a mqtt server. But the problem I am facing is when I export that flow and try to install that in another node-red instance it's not receiving the username/password. ap…

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## [I'm asking how to convert a msg into json](https://discourse.nodered.org/t/im-asking-how-to-convert-a-msg-into-json/44163)

<div class="topic-metadata">

**Author:** [@fa7](https://discourse.nodered.org/u/fa7)\
**Replies:** 3\
**Last updated:** [14 April 2021 13:15 UTC](https://discourse.nodered.org/t/im-asking-how-to-convert-a-msg-into-json/44163 "2021-04-14T13:15:54Z")

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v1: 231.4223175048828 265067.167 QTot: 0 F: 49.99128723144531 PFTot: NaN Ptot: 0 P3: 0 P2: 0 P1: 0 U31: 400.7892761230469 U23: 402.8990783691406 U12: 401.9129333496094 I3: 0 I2: 0 I1: 0 V3: 232.07000732…

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## [Get HTTP request for JSON data from BOM](https://discourse.nodered.org/t/get-http-request-for-json-data-from-bom/44159)

<div class="topic-metadata">

**Author:** [@JoeFC](https://discourse.nodered.org/u/JoeFC)\
**Replies:** 2\
**Last updated:** [14 April 2021 12:46 UTC](https://discourse.nodered.org/t/get-http-request-for-json-data-from-bom/44159 "2021-04-14T12:46:48Z")

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Hi, I've recent started using Node Red (V1.3.2) for building flows to access my weather station and I would like to compare its local weather data with that from Australian Bureau of Meteorology (BOM) web site that provi…

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## [Installed custom node not recognized in Node-red 1.3.1](https://discourse.nodered.org/t/installed-custom-node-not-recognized-in-node-red-1-3-1/44020)

<div class="topic-metadata">

**Author:** [@Laurent\_D](https://discourse.nodered.org/u/Laurent_D)\
**Replies:** 5\
**Last updated:** [14 April 2021 11:52 UTC](https://discourse.nodered.org/t/installed-custom-node-not-recognized-in-node-red-1-3-1/44020 "2021-04-14T11:52:54Z")

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In my previous setup (node-red 1.2.x), I used to install custom nodes (provided by someone else) by unzipping the node files in C:\\Users\\MyName\\node\_modules, and it was working fine :slight\_smile: Note: My machine is a…

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## [Node red and ibm cloud probleme](https://discourse.nodered.org/t/node-red-and-ibm-cloud-probleme/44156)

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**Author:** [@achref46](https://discourse.nodered.org/u/achref46)\
**Replies:** 0\
**Last updated:** [14 April 2021 10:57 UTC](https://discourse.nodered.org/t/node-red-and-ibm-cloud-probleme/44156 "2021-04-14T10:57:22Z")

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i have a problem with connecting node red in ibm watson cloud ? why this dont work in node red

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## [Updating node when backend gets updated](https://discourse.nodered.org/t/updating-node-when-backend-gets-updated/44137)

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**Author:** [@rorokoko](https://discourse.nodered.org/u/rorokoko)\
**Replies:** 1\
**Last updated:** [14 April 2021 08:47 UTC](https://discourse.nodered.org/t/updating-node-when-backend-gets-updated/44137 "2021-04-14T08:47:09Z")

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Hi, I am trying to build a MQTT pub/sub node, which gets the mqtt broker and topic information from the backend after user authentication and inputs. Problem is, user can update the mqtt broker information in the backen…

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## [How to add an object to the Node-RED msg.payload](https://discourse.nodered.org/t/how-to-add-an-object-to-the-node-red-msg-payload/44111)

<div class="topic-metadata">

**Author:** [@vongomben](https://discourse.nodered.org/u/vongomben)\
**Replies:** 3\
**Last updated:** [14 April 2021 08:13 UTC](https://discourse.nodered.org/t/how-to-add-an-object-to-the-node-red-msg-payload/44111 "2021-04-14T08:13:48Z")

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Hi. I'm failing in adding elements to the payload object, simply because the payload iself it not declared at the beginning of the flow as object. I've found many other users facing this problem, and while I understood…

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## [Node-red-contrib-loop-processing // false positives](https://discourse.nodered.org/t/node-red-contrib-loop-processing-false-positives/44002)

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**Author:** [@zimb86](https://discourse.nodered.org/u/zimb86)\
**Replies:** 2\
**Last updated:** [14 April 2021 08:05 UTC](https://discourse.nodered.org/t/node-red-contrib-loop-processing-false-positives/44002 "2021-04-14T08:05:13Z")

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Hi, i´m using node-red-contrib-loop-processing (node-red-contrib-loop-processing (node) - Node-RED) to achieve the following: Start a while loop at 3pm / 15:00 to close shutters when global.brightness falls below a def…

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## [Footer being used for docs/api/modules/v/1.0/ is not the common one](https://discourse.nodered.org/t/footer-being-used-for-docs-api-modules-v-1-0-is-not-the-common-one/43517)

<div class="topic-metadata">

**Author:** [@gauravdasgupta](https://discourse.nodered.org/u/gauravdasgupta)\
**Replies:** 2\
**Last updated:** [14 April 2021 05:36 UTC](https://discourse.nodered.org/t/footer-being-used-for-docs-api-modules-v-1-0-is-not-the-common-one/43517 "2021-04-14T05:36:02Z")

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Please check attachment here. I went down to check the code and found it inside correcting the text is not the solution, we need to make the footer common for all the pages! may be its already being fixed by someone,…

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## [We should update the Banner Image Text on youtube channel](https://discourse.nodered.org/t/we-should-update-the-banner-image-text-on-youtube-channel/44099)

<div class="topic-metadata">

**Author:** [@gauravdasgupta](https://discourse.nodered.org/u/gauravdasgupta)\
**Replies:** 2\
**Last updated:** [14 April 2021 05:30 UTC](https://discourse.nodered.org/t/we-should-update-the-banner-image-text-on-youtube-channel/44099 "2021-04-14T05:30:03Z")

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We are still showing that its meant for IoT on the Banner Image-

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## [Server startet immer wieder neu](https://discourse.nodered.org/t/server-startet-immer-wieder-neu/44080)

<div class="topic-metadata">

**Author:** [@miggi20000](https://discourse.nodered.org/u/miggi20000)\
**Replies:** 7\
**Last updated:** [14 April 2021 04:19 UTC](https://discourse.nodered.org/t/server-startet-immer-wieder-neu/44080 "2021-04-14T04:19:08Z")

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Hallo, seit einiger Zeit startet mein node-red Server immer wieder neu. Hier der log-Text. Vielleicht kann mir einer von Euch Spezialisten helfen. Vorab vielen Dank. 13 Apr 08:37:15 - \[info\] Flows starten 13 Apr 08:37:…

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## [Dynamic dropdown menu from ajax request](https://discourse.nodered.org/t/dynamic-dropdown-menu-from-ajax-request/44126)

<div class="topic-metadata">

**Author:** [@sarthak7034](https://discourse.nodered.org/u/sarthak7034)\
**Replies:** 1\
**Last updated:** [13 April 2021 21:40 UTC](https://discourse.nodered.org/t/dynamic-dropdown-menu-from-ajax-request/44126 "2021-04-13T21:40:50Z")

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So, I am trying to create a dynamic dropdown box from the ajax request received inside oneditprepare. I am trying to get an id and all its operations into the dropdown box dynamically. Example:- $.ajax…

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## [Nested flows with secrets, passing variables to nested sub-flow](https://discourse.nodered.org/t/nested-flows-with-secrets-passing-variables-to-nested-sub-flow/44129)

<div class="topic-metadata">

**Author:** [@GrahamW](https://discourse.nodered.org/u/GrahamW)\
**Replies:** 0\
**Last updated:** [13 April 2021 20:43 UTC](https://discourse.nodered.org/t/nested-flows-with-secrets-passing-variables-to-nested-sub-flow/44129 "2021-04-13T20:43:00Z")

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TL;DR how to I pass variables from one sub-flow to a child sub-flow? I am using a flow that already uses sub-flows; secrets and other config are passed to the sub-flows via environment variables (using the config panel.…

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## [Advice needed on Pi CPU usage](https://discourse.nodered.org/t/advice-needed-on-pi-cpu-usage/43279)

<div class="topic-metadata">

**Author:** [@eddee54455](https://discourse.nodered.org/u/eddee54455)\
**Replies:** 153\
**Last updated:** [13 April 2021 19:16 UTC](https://discourse.nodered.org/t/advice-needed-on-pi-cpu-usage/43279 "2021-04-13T19:16:14Z")

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Good day peeps!! First off... I am at kindergarten level... Small words only!! I have a fairly large flow set that runs my home auto system... There is a fair amount of to and fro on mqtt from Inverter/Sonoff/Tasmota s…

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## [Add my translation in i18n-viewer](https://discourse.nodered.org/t/add-my-translation-in-i18n-viewer/44118)

<div class="topic-metadata">

**Author:** [@Folgore](https://discourse.nodered.org/u/Folgore)\
**Replies:** 0\
**Last updated:** [13 April 2021 17:51 UTC](https://discourse.nodered.org/t/add-my-translation-in-i18n-viewer/44118 "2021-04-13T17:51:18Z")

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Hi, I have cloned the repository...and I have add my locales folder in the correct path, but when I start the i18n-viewer I don't found my languages.... What am I doing wrong? Thanks

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## [Using GPIO via Node-red on the Jetson-Nano](https://discourse.nodered.org/t/using-gpio-via-node-red-on-the-jetson-nano/16629)

<div class="topic-metadata">

**Author:** [@Schotte2360](https://discourse.nodered.org/u/Schotte2360)\
**Replies:** 9\
**Last updated:** [13 April 2021 17:31 UTC](https://discourse.nodered.org/t/using-gpio-via-node-red-on-the-jetson-nano/16629 "2021-04-13T17:31:01Z")

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Hey. I am used to use node-red on the Raspberry Pi to control the GPIO pins. I manage to install Node-red, but I can't get the GPIO working from Node-red on the Jetson Nano. Can someone help me?

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## [Constantly losing data](https://discourse.nodered.org/t/constantly-losing-data/44055)

<div class="topic-metadata">

**Author:** [@HZB](https://discourse.nodered.org/u/HZB)\
**Replies:** 4\
**Last updated:** [13 April 2021 17:01 UTC](https://discourse.nodered.org/t/constantly-losing-data/44055 "2021-04-13T17:01:39Z")

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Hi everyone. I am designing a Node Red based system for a company. We re using IBM cloud for the node red (paid version). The only problem we are facing is "we are constantly losing data" after every update or so. Some …

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## [Extract values from serial port data & display on dashboard](https://discourse.nodered.org/t/extract-values-from-serial-port-data-display-on-dashboard/25758)

<div class="topic-metadata">

**Author:** [@Allanch7](https://discourse.nodered.org/u/Allanch7)\
**Replies:** 11\
**Last updated:** [13 April 2021 16:31 UTC](https://discourse.nodered.org/t/extract-values-from-serial-port-data-display-on-dashboard/25758 "2021-04-13T16:31:34Z")

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Estoy tratando de armar un dashboard en donde extraigo diferentes valores por puerto serial (COM), esto es lo que me está llegando pero ocupo extraer solamente los valores de BAT, TC, HUM Y PRESS. Soy muy nuevo usando r…

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## [Split/Join with change of type](https://discourse.nodered.org/t/split-join-with-change-of-type/44112)

<div class="topic-metadata">

**Author:** [@devleaks](https://discourse.nodered.org/u/devleaks)\
**Replies:** 9\
**Last updated:** [13 April 2021 16:05 UTC](https://discourse.nodered.org/t/split-join-with-change-of-type/44112 "2021-04-13T16:05:47Z")

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Dear noderaiders, I found a tricky one and I'd like to get your advise on this one. I want to process a UDP stream, I receive a stream of bytes and I want to produce a payload object. A UDP message consists of a set o…

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