# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=700

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

**Page:** 701

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## [Customize NodeRed Web UI](https://discourse.nodered.org/t/customize-nodered-web-ui/31408)

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**Author:** [@shr3y1s](https://discourse.nodered.org/u/shr3y1s)\
**Replies:** 0\
**Last updated:** [10 August 2020 18:29 UTC](https://discourse.nodered.org/t/customize-nodered-web-ui/31408 "2020-08-10T18:29:47Z")

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I wanted to know how big of task is too customize the Node-RED web UI. I have already gone through Editor Themes and Runtime configuration ways that Node-RED provides for cosmetic customization. https://nodered.org/docs…

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## [Any advice ? OLED Node SPI issue](https://discourse.nodered.org/t/any-advice-oled-node-spi-issue/30943)

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**Author:** [@Peter](https://discourse.nodered.org/u/Peter)\
**Replies:** 6\
**Last updated:** [10 August 2020 14:27 UTC](https://discourse.nodered.org/t/any-advice-oled-node-spi-issue/30943 "2020-08-10T14:27:28Z")

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HI Guys, Quick Question, why does OLED node only work with I2C and Not SPI ? I have a Raspi zero OLED HAT ( 128x32) ( https://www.waveshare.com/product/displays/lcd-oled/lcd-oled-3/2.23inch-oled-hat.htm ) I got it to …

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## [Msg.status.text (object) to csv (via payload?)](https://discourse.nodered.org/t/msg-status-text-object-to-csv-via-payload/31376)

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**Author:** [@ArneR](https://discourse.nodered.org/u/ArneR)\
**Replies:** 8\
**Last updated:** [10 August 2020 13:16 UTC](https://discourse.nodered.org/t/msg-status-text-object-to-csv-via-payload/31376 "2020-08-10T13:16:04Z")

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Dear I am a beginner as far as Node-Red is concerned. Currently I have a msg.object, from which I would like to get the text (msg.status.text). The photo shows the text as "offline" in this case. The text is variabl…

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## [Potential uses of Nodered](https://discourse.nodered.org/t/potential-uses-of-nodered/31363)

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**Author:** [@yknr](https://discourse.nodered.org/u/yknr)\
**Replies:** 3\
**Last updated:** [10 August 2020 11:05 UTC](https://discourse.nodered.org/t/potential-uses-of-nodered/31363 "2020-08-10T11:05:50Z")

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I am sure the question of the purpose of nodered has been asked in the forum. Just to get some ideas what are some potential uses of Nodered? Are there examples of nodered being embedded in a java application?

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## [Question on global context & function behaviour](https://discourse.nodered.org/t/question-on-global-context-function-behaviour/31383)

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**Author:** [@duaw](https://discourse.nodered.org/u/duaw)\
**Replies:** 2\
**Last updated:** [10 August 2020 10:41 UTC](https://discourse.nodered.org/t/question-on-global-context-function-behaviour/31383 "2020-08-10T10:41:56Z")

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Hi, I have a problem using context. Consider this flow: \[{"id":"c966d72c.b3b428","type":"function","z":"d4de0d13.1abea8","name":"get global dummy","func":"var dummy = global.get(\\"dummy\\")||10;\\nmsg.payload = dummy;\\nr…

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## [Authenticate against LDAP in Node Red](https://discourse.nodered.org/t/authenticate-against-ldap-in-node-red/12201)

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**Author:** [@RobP](https://discourse.nodered.org/u/RobP)\
**Replies:** 19\
**Last updated:** [10 August 2020 10:28 UTC](https://discourse.nodered.org/t/authenticate-against-ldap-in-node-red/12201 "2020-08-10T10:28:59Z")

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In my application flow, I want to authenticate a user in an on-premise LDAP. I have tried several contrib-nodes and passport and can't get it to work. I have been able to successfully authenticate using node-red-contri…

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## [Modbus node not working](https://discourse.nodered.org/t/modbus-node-not-working/31299)

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**Author:** [@Cheese](https://discourse.nodered.org/u/Cheese)\
**Replies:** 2\
**Last updated:** [10 August 2020 10:19 UTC](https://discourse.nodered.org/t/modbus-node-not-working/31299 "2020-08-10T10:19:41Z")

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Hi all, I have a flow trying to get some Modbus readings. I have 2 modbus devices, one of which seems to work fine. The other one is intermittent and fails most of the time. Can anyone tell me what this error message me…

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## [Flows stopped due to missing node types - spontaneously](https://discourse.nodered.org/t/flows-stopped-due-to-missing-node-types-spontaneously/31365)

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**Author:** [@bakman2](https://discourse.nodered.org/u/bakman2)\
**Replies:** 0\
**Last updated:** [10 August 2020 06:55 UTC](https://discourse.nodered.org/t/flows-stopped-due-to-missing-node-types-spontaneously/31365 "2020-08-10T06:55:12Z")

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While working on some flows, deploying, editing, deploying etc. When I deploy sometimes, I get "no response from server" - where node-red restarts and this popup suddenly shows up: "Flows stopped due to missing node typ…

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## [Interface Question](https://discourse.nodered.org/t/interface-question/31059)

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**Author:** [@RASelkirk](https://discourse.nodered.org/u/RASelkirk)\
**Replies:** 5\
**Last updated:** [10 August 2020 05:09 UTC](https://discourse.nodered.org/t/interface-question/31059 "2020-08-10T05:09:59Z")

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Another noob question, under "Edit node" there are: properties | description | appearance buttons. What is the purpose of description? Simply to keep notes or does it become something that's actually processed? Couldn't …

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## [Help For New User](https://discourse.nodered.org/t/help-for-new-user/31148)

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**Author:** [@DaveC](https://discourse.nodered.org/u/DaveC)\
**Replies:** 7\
**Last updated:** [10 August 2020 04:30 UTC](https://discourse.nodered.org/t/help-for-new-user/31148 "2020-08-10T04:30:28Z")

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I am just starting to use MQTT and Node Red as an introduction to IOT and Home Automation, and having some basic issues. Background is as an initial experiment I have a BMP280 connected to a Tasmota device (Wemos D1 Min…

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## [Anyone know of module for SHT3X sensor?](https://discourse.nodered.org/t/anyone-know-of-module-for-sht3x-sensor/28640)

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**Author:** [@Nodi.Rubrum](https://discourse.nodered.org/u/Nodi.Rubrum)\
**Replies:** 33\
**Last updated:** [10 August 2020 00:38 UTC](https://discourse.nodered.org/t/anyone-know-of-module-for-sht3x-sensor/28640 "2020-08-10T00:38:10Z")

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Anyone know of module for SHT3X sensor? There seems to be quite a few modules for BMP280 and BME280, but have yet to find any for the SHT3X?

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## [Atlas Scientific I2C probe reading](https://discourse.nodered.org/t/atlas-scientific-i2c-probe-reading/31349)

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**Author:** [@Sebchauvour](https://discourse.nodered.org/u/Sebchauvour)\
**Replies:** 0\
**Last updated:** [9 August 2020 22:18 UTC](https://discourse.nodered.org/t/atlas-scientific-i2c-probe-reading/31349 "2020-08-09T22:18:12Z")

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Bonjour Hello J’ai un probleme de lecture des sondes Atlas scientificI Have a problem reading the Atlas scientific probes Les sondes sont bien configurées en I2C The probes are well configured in I2C Scan I2C = 99(PH)…

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## [This is a node question, not NR, how do you do a local script blocking wait, but not block the node event loop?](https://discourse.nodered.org/t/this-is-a-node-question-not-nr-how-do-you-do-a-local-script-blocking-wait-but-not-block-the-node-event-loop/31318)

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**Author:** [@Nodi.Rubrum](https://discourse.nodered.org/u/Nodi.Rubrum)\
**Replies:** 14\
**Last updated:** [9 August 2020 19:27 UTC](https://discourse.nodered.org/t/this-is-a-node-question-not-nr-how-do-you-do-a-local-script-blocking-wait-but-not-block-the-node-event-loop/31318 "2020-08-09T19:27:59Z")

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Figure everyone in this forum is very 'node' savvy, so that is why I am asking here. I am trying to drive a MAX7219 controlled display. Writing an updated node library for it. I have it done but for one basic problem.…

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## [Incoming UDP Define Port](https://discourse.nodered.org/t/incoming-udp-define-port/31274)

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**Author:** [@mikewoodld](https://discourse.nodered.org/u/mikewoodld)\
**Replies:** 1\
**Last updated:** [9 August 2020 16:16 UTC](https://discourse.nodered.org/t/incoming-udp-define-port/31274 "2020-08-09T16:16:33Z")

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Am I correct in that there is no way to dynamically change the incoming UDP port using the default UDP node? I know you can set the outgoing using msg.ip and msg.port - sucks that there seems to be no way to set the…

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## [\[Announce\] New NR type definitions & more for TypeScript developers](https://discourse.nodered.org/t/announce-new-nr-type-definitions-more-for-typescript-developers/31304)

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**Author:** [@alexk111](https://discourse.nodered.org/u/alexk111)\
**Replies:** 1\
**Last updated:** [9 August 2020 16:04 UTC](https://discourse.nodered.org/t/announce-new-nr-type-definitions-more-for-typescript-developers/31304 "2020-08-09T16:04:03Z")

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The new version of Node-RED type definitions is about to be released (waiting for approval from a DT maintainer). It covers all the node-red and @node-red/... dep modules, enabling to develop new nodes and integrate with…

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## [Can not send data to table MariaDB, please help](https://discourse.nodered.org/t/can-not-send-data-to-table-mariadb-please-help/31324)

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**Author:** [@WesleyFranken](https://discourse.nodered.org/u/WesleyFranken)\
**Replies:** 22\
**Last updated:** [9 August 2020 15:55 UTC](https://discourse.nodered.org/t/can-not-send-data-to-table-mariadb-please-help/31324 "2020-08-09T15:55:42Z")

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I try to make sense how to connect with a MariaDB. I use the following node: I do have connection with my database. I've created the table in the database. My function node to inject data in database node: clien…

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## [Control of an "internet relay board" bit of help](https://discourse.nodered.org/t/control-of-an-internet-relay-board-bit-of-help/729)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 6\
**Last updated:** [9 August 2020 15:48 UTC](https://discourse.nodered.org/t/control-of-an-internet-relay-board-bit-of-help/729 "2020-08-09T15:48:55Z")

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Folks, I have already got it working, but need a bit of help with the mechanics of what is going on. A long time ago I bought a board that connects to the internet and has two relays on it. They can be controlled from …

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## [\[solved\] Extracting value from String after http request](https://discourse.nodered.org/t/solved-extracting-value-from-string-after-http-request/31345)

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**Author:** [@Tomas](https://discourse.nodered.org/u/Tomas)\
**Replies:** 2\
**Last updated:** [9 August 2020 15:23 UTC](https://discourse.nodered.org/t/solved-extracting-value-from-string-after-http-request/31345 "2020-08-09T15:23:17Z")

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Hi, I am new with node red and now I love it. I have already connected my Fronius and Volkszähler with node-red-contrib-fronius-solar and node-red-contrib-volkszaehler withe no problems. Now I want to connect our heat…

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## [Function node flags octal assignments with leading 0's, warns at deploy but runs fine](https://discourse.nodered.org/t/function-node-flags-octal-assignments-with-leading-0s-warns-at-deploy-but-runs-fine/31346)

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**Author:** [@zenofmud](https://discourse.nodered.org/u/zenofmud)\
**Replies:** 0\
**Last updated:** [9 August 2020 15:17 UTC](https://discourse.nodered.org/t/function-node-flags-octal-assignments-with-leading-0s-warns-at-deploy-but-runs-fine/31346 "2020-08-09T15:17:08Z")

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If you enter the following into a function node, no statement is flagged in the editor: msg.payload = 0755 return msg; However when you look at the flow diagram, the function node is flagged (red triangle) with a noe…

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## [Dealing with multiple msg.payloads at once](https://discourse.nodered.org/t/dealing-with-multiple-msg-payloads-at-once/31322)

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**Author:** [@mikewoodld](https://discourse.nodered.org/u/mikewoodld)\
**Replies:** 3\
**Last updated:** [9 August 2020 14:34 UTC](https://discourse.nodered.org/t/dealing-with-multiple-msg-payloads-at-once/31322 "2020-08-09T14:34:21Z")

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Hi! I'm wondering if there's a more efficient way to accomplish what I'm doing here. I'm using the FlightRadar24 Node, and the goal is that I want to generate a return-separated list of all of the flight registration nu…

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## [Regular Expression in Change Node Not Working](https://discourse.nodered.org/t/regular-expression-in-change-node-not-working/31240)

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**Author:** [@gctseng](https://discourse.nodered.org/u/gctseng)\
**Replies:** 12\
**Last updated:** [9 August 2020 12:59 UTC](https://discourse.nodered.org/t/regular-expression-in-change-node-not-working/31240 "2020-08-09T12:59:00Z")

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I have created a flow to send an e-mail when a battery level is lower than a certain percentage. I used a Change node: The Change node gets a msg.payload from a State-Change node for a battery level, which works (e.g.…

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## [How to trigger based on entity time in Node Red](https://discourse.nodered.org/t/how-to-trigger-based-on-entity-time-in-node-red/31010)

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**Author:** [@Danielmurtagh](https://discourse.nodered.org/u/Danielmurtagh)\
**Replies:** 5\
**Last updated:** [9 August 2020 04:37 UTC](https://discourse.nodered.org/t/how-to-trigger-based-on-entity-time-in-node-red/31010 "2020-08-09T04:37:56Z")

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Hi All, This might be a simple question but I am really struggling to find the right search terms to find an answer, so I am hoping someone can point me in the right direction. I am new to both Home Assistant and Node …

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## [iAqualink for Pool Equipment](https://discourse.nodered.org/t/iaqualink-for-pool-equipment/29689)

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**Author:** [@Tico](https://discourse.nodered.org/u/Tico)\
**Replies:** 7\
**Last updated:** [9 August 2020 03:12 UTC](https://discourse.nodered.org/t/iaqualink-for-pool-equipment/29689 "2020-08-09T03:12:29Z")

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BACKGROUND iAqualink is a service created for connecting Zodiac/Fluidra pool equipment to a cloud-based service for monitoring and control. There are apps for iOS and Android but no open-API for 3rd party control. Some…

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## [Wait until Node - Bug? Timeout definition](https://discourse.nodered.org/t/wait-until-node-bug-timeout-definition/31289)

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**Author:** [@ThisisIO](https://discourse.nodered.org/u/ThisisIO)\
**Replies:** 10\
**Last updated:** [8 August 2020 15:34 UTC](https://discourse.nodered.org/t/wait-until-node-bug-timeout-definition/31289 "2020-08-08T15:34:24Z")

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Hello, i'm trying to put the custom timeout in Wait until Node. In best way i would like to out there a msg.data.timeout or somtrhing like this. But it do not work. I have read manual and tried to do this way. …

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## [MIDI in/out node set will not install with Palette Manager](https://discourse.nodered.org/t/midi-in-out-node-set-will-not-install-with-palette-manager/31312)

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**Author:** [@RudiWiedemann](https://discourse.nodered.org/u/RudiWiedemann)\
**Replies:** 2\
**Last updated:** [8 August 2020 15:09 UTC](https://discourse.nodered.org/t/midi-in-out-node-set-will-not-install-with-palette-manager/31312 "2020-08-08T15:09:08Z")

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I keep getting a "failed to install" error when trying to install this set of 2 nodes from the Palette Manager. Is there a way to do this directly from a command line???

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## [MySQL query for a range of dates](https://discourse.nodered.org/t/mysql-query-for-a-range-of-dates/31269)

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**Author:** [@kumarsemal](https://discourse.nodered.org/u/kumarsemal)\
**Replies:** 7\
**Last updated:** [8 August 2020 09:51 UTC](https://discourse.nodered.org/t/mysql-query-for-a-range-of-dates/31269 "2020-08-08T09:51:51Z")

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Hello Sir, I stuck in a mysql query. I want to pick two dates and want to display the data in tabular form on dashboard after fetching data from database. I ran the query in mysql workbench and it was successfull. But, …

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## [Why one of many SQL nodes seems to timeout and disconnect?](https://discourse.nodered.org/t/why-one-of-many-sql-nodes-seems-to-timeout-and-disconnect/31298)

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**Author:** [@Nodi.Rubrum](https://discourse.nodered.org/u/Nodi.Rubrum)\
**Replies:** 0\
**Last updated:** [8 August 2020 02:31 UTC](https://discourse.nodered.org/t/why-one-of-many-sql-nodes-seems-to-timeout-and-disconnect/31298 "2020-08-08T02:31:12Z")

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Anyone happen to know why one of many SQL nodes seems to disconnect when others in same flow do not? This is completely cosmetic, when the automated flow runs, the connection status changes to OK, the query works, etc. …

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## [How to pass variables to the MSSQL-Node?](https://discourse.nodered.org/t/how-to-pass-variables-to-the-mssql-node/19495)

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**Author:** [@Golonder](https://discourse.nodered.org/u/Golonder)\
**Replies:** 3\
**Last updated:** [8 August 2020 02:11 UTC](https://discourse.nodered.org/t/how-to-pass-variables-to-the-mssql-node/19495 "2020-08-08T02:11:47Z")

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Hi, I would like to insert several values into my MSSQL-Database using the MSSQL-Node. Unfortunately it does not seem to work the way it is described. I prepare an object with two variables: var a = {}; a.SQL\_Paramet…

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## [Add linefeed to begin of string](https://discourse.nodered.org/t/add-linefeed-to-begin-of-string/31288)

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**Author:** [@warnert](https://discourse.nodered.org/u/warnert)\
**Replies:** 2\
**Last updated:** [7 August 2020 21:48 UTC](https://discourse.nodered.org/t/add-linefeed-to-begin-of-string/31288 "2020-08-07T21:48:45Z")

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Hello, I have a display connected to a serial line. That display clears its screen if it receives a linefeed. (I wrote the code myself, it is a ATTiny2313 with a 2x16 LCD screen attached and a RS232 driver/reciever chip…

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## [Compare 2 numbers for cpu fan pwm](https://discourse.nodered.org/t/compare-2-numbers-for-cpu-fan-pwm/31281)

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**Author:** [@noob1505](https://discourse.nodered.org/u/noob1505)\
**Replies:** 6\
**Last updated:** [7 August 2020 20:59 UTC](https://discourse.nodered.org/t/compare-2-numbers-for-cpu-fan-pwm/31281 "2020-08-07T20:59:09Z")

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I am a Node Red noob. but learning. I want to make a fan pwm control. which the fan controls by pwm depending on the difference between measured temperature and setpoint. I can't get the function right. what am i doing…

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