# Latest

**URL:** https://discourse.nodered.org/latest.md?page=602

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

**Page:** 603

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## [Add prefix to string and send it to Thingsboard](https://discourse.nodered.org/t/add-prefix-to-string-and-send-it-to-thingsboard/60253)

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**Author:** [@\_mirjka](https://discourse.nodered.org/u/_mirjka)\
**Replies:** 3\
**Last updated:** [23 March 2022 17:41 UTC](https://discourse.nodered.org/t/add-prefix-to-string-and-send-it-to-thingsboard/60253 "2022-03-23T17:41:33Z")

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Hi, I´m struggeling with a syntax problem: I only want to add a prefix to a number und convert it into a JSON in order to send it as "key": value to Thingsboard. Message: {"attribute1":"value1"} This flow shows my pro…

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## [Node-red-debugger install broken?](https://discourse.nodered.org/t/node-red-debugger-install-broken/60193)

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**Author:** [@smithy](https://discourse.nodered.org/u/smithy)\
**Replies:** 2\
**Last updated:** [23 March 2022 17:20 UTC](https://discourse.nodered.org/t/node-red-debugger-install-broken/60193 "2022-03-23T17:20:14Z")

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Hi I recently upgraded an old pre version 2 install of NR on a PI4 and also coincidentally built a brand new NR install on Synology. One of the main reasons I upgraded my old NR install was to use the new flow debugger. …

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## [Sending synology NAS temperature value in a complete sentence by email](https://discourse.nodered.org/t/sending-synology-nas-temperature-value-in-a-complete-sentence-by-email/60249)

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**Author:** [@minouch](https://discourse.nodered.org/u/minouch)\
**Replies:** 2\
**Last updated:** [23 March 2022 16:19 UTC](https://discourse.nodered.org/t/sending-synology-nas-temperature-value-in-a-complete-sentence-by-email/60249 "2022-03-23T16:19:24Z")

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Hi everyone. before starting i'm a real beginner with node red and i'm trying to train myself with some basics. right now, i'm trying to collect the temperature information from my synology NAS and i'd like to send the…

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## [How to autoinstall external nodes when importing flows](https://discourse.nodered.org/t/how-to-autoinstall-external-nodes-when-importing-flows/60235)

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**Author:** [@quemf](https://discourse.nodered.org/u/quemf)\
**Replies:** 2\
**Last updated:** [23 March 2022 15:25 UTC](https://discourse.nodered.org/t/how-to-autoinstall-external-nodes-when-importing-flows/60235 "2022-03-23T15:25:29Z")

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Hi everyone, Lately I need to import different flows to my Node-RED, with nodes that are not installed by default, and I was wondering if there is a parameter in the configuration or a way to auto-install them automatic…

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## [Working Ambient Weather API flow](https://discourse.nodered.org/t/working-ambient-weather-api-flow/16973)

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**Author:** [@github768484](https://discourse.nodered.org/u/github768484)\
**Replies:** 13\
**Last updated:** [23 March 2022 15:09 UTC](https://discourse.nodered.org/t/working-ambient-weather-api-flow/16973 "2022-03-23T15:09:04Z")

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Hey folks, I've found where some have had issues pulling data from their Ambient Weather stations. Here's the simple http get URL to pull your data. Get your API key here https://dashboard.ambientweather.net/account h…

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## [\[UPDATE\] node-red-contrib-siemens-sentron v0.0.16](https://discourse.nodered.org/t/update-node-red-contrib-siemens-sentron-v0-0-16/60250)

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**Author:** [@NicoloToscani](https://discourse.nodered.org/u/NicoloToscani)\
**Replies:** 0\
**Last updated:** [23 March 2022 15:04 UTC](https://discourse.nodered.org/t/update-node-red-contrib-siemens-sentron-v0-0-16/60250 "2022-03-23T15:04:26Z")

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This new version supports these devices: PAC1200 PAC1600 PAC2200 PAC3100 PAC3120 PAC3220 PAC3220T PAC4200 PAC5200 ATC6300 3VA Powercenter1000

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## [Upgrade to bootstrap v5](https://discourse.nodered.org/t/upgrade-to-bootstrap-v5/59719)

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**Author:** [@aurelhann](https://discourse.nodered.org/u/aurelhann)\
**Replies:** 12\
**Last updated:** [23 March 2022 14:44 UTC](https://discourse.nodered.org/t/upgrade-to-bootstrap-v5/59719 "2022-03-23T14:44:32Z")

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I know that Node-red purpose a lot of inputs elements (input, list, select, tabs, etc...) to put into the node interface form. These settings node interface could be more effective with other components, like collapsing,…

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## [How can I dim light to a min number amount](https://discourse.nodered.org/t/how-can-i-dim-light-to-a-min-number-amount/60241)

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**Author:** [@DariBer](https://discourse.nodered.org/u/DariBer)\
**Replies:** 1\
**Last updated:** [23 March 2022 14:17 UTC](https://discourse.nodered.org/t/how-can-i-dim-light-to-a-min-number-amount/60241 "2022-03-23T14:17:30Z")

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I'm new to Node-RED so please go easy on me here :slight\_smile: I have created a flow when I change a sensor from off to on it will dim down a light bulb I have in Home Assistant. Unfortunately when the dim comes to 0 …

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## [Node red flow frequently stopped](https://discourse.nodered.org/t/node-red-flow-frequently-stopped/59961)

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**Author:** [@TROJAN053](https://discourse.nodered.org/u/TROJAN053)\
**Replies:** 16\
**Last updated:** [23 March 2022 11:01 UTC](https://discourse.nodered.org/t/node-red-flow-frequently-stopped/59961 "2022-03-23T11:01:51Z")

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HI, My Node flows are stopped frequently showing error for javaScript heap out of memory. Screenshot attached. What could be the possible reason any ideas!!!.

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## [Pass msq payload to SQL query where clause](https://discourse.nodered.org/t/pass-msq-payload-to-sql-query-where-clause/60231)

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**Author:** [@QGIO](https://discourse.nodered.org/u/QGIO)\
**Replies:** 5\
**Last updated:** [23 March 2022 10:58 UTC](https://discourse.nodered.org/t/pass-msq-payload-to-sql-query-where-clause/60231 "2022-03-23T10:58:42Z")

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Hi node-red forum, Is it possible to pass a msg payload to SQL query node to use in the where cluase? I mean somenthing like this: Which is the correct syntax? The path of the msg payload to pass is payload.topic1…

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## [How do you change the properties of a node while the application is running?](https://discourse.nodered.org/t/how-do-you-change-the-properties-of-a-node-while-the-application-is-running/60230)

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**Author:** [@chappo\_2](https://discourse.nodered.org/u/chappo_2)\
**Replies:** 1\
**Last updated:** [23 March 2022 10:39 UTC](https://discourse.nodered.org/t/how-do-you-change-the-properties-of-a-node-while-the-application-is-running/60230 "2022-03-23T10:39:24Z")

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I am using the 'serial in' (node-red-node-serialport) node and would like to change the serial port settings based on information recieved over mqtt. However, I do not know a way to change the properties of a node while…

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## [Sanity Check for my Node Red project architecture](https://discourse.nodered.org/t/sanity-check-for-my-node-red-project-architecture/60095)

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**Author:** [@abehil](https://discourse.nodered.org/u/abehil)\
**Replies:** 8\
**Last updated:** [23 March 2022 03:02 UTC](https://discourse.nodered.org/t/sanity-check-for-my-node-red-project-architecture/60095 "2022-03-23T03:02:18Z")

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I'm trying to figure out if I can create flows in Node Red to be deployed to Arduino Mega which has 16 relays connected.. Then have a remote Wemos D1 Mini send commands to the Mega to invoke individual flows when needed…

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## [Simple web component example \<syntax-highlight\>](https://discourse.nodered.org/t/simple-web-component-example-syntax-highlight/60037)

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**Author:** [@TotallyInformation](https://discourse.nodered.org/u/TotallyInformation)\
**Replies:** 14\
**Last updated:** [22 March 2022 23:23 UTC](https://discourse.nodered.org/t/simple-web-component-example-syntax-highlight/60037 "2022-03-22T23:23:07Z")

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If you saw my previous post, you know I've been learning about web components and js modules. If you use uibuilder, you will also know that I'm fond of including a msg display on the page that shows a formatted version o…

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## [Alternative of current ui nodes in the FlexDash dashboard](https://discourse.nodered.org/t/alternative-of-current-ui-nodes-in-the-flexdash-dashboard/58768)

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**Author:** [@BartButenaers](https://discourse.nodered.org/u/BartButenaers)\
**Replies:** 83\
**Last updated:** [22 March 2022 23:16 UTC](https://discourse.nodered.org/t/alternative-of-current-ui-nodes-in-the-flexdash-dashboard/58768 "2022-03-22T23:16:07Z")

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Hi folks, I would like to discuss here how we can assist @tve to build an alternative for the current AngularJs UI nodes in his FlexDash dashboard. For people that don't like the concept of UI nodes, please just ignore…

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## [Extract msg.payload for triggering mytimeout](https://discourse.nodered.org/t/extract-msg-payload-for-triggering-mytimeout/60135)

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**Author:** [@\_mirjka](https://discourse.nodered.org/u/_mirjka)\
**Replies:** 8\
**Last updated:** [22 March 2022 19:29 UTC](https://discourse.nodered.org/t/extract-msg-payload-for-triggering-mytimeout/60135 "2022-03-22T19:29:37Z")

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Hi, I trigger a "mytimeout" node with a Thingboard dashboard and a certain timeout value. The syntax is straight forward and I get it via MQTT exaclty like it has to be. { "timeout": number, } The start mqtt messag…

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## [Node Red crashed - why?](https://discourse.nodered.org/t/node-red-crashed-why/59500)

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**Author:** [@Flixm](https://discourse.nodered.org/u/Flixm)\
**Replies:** 11\
**Last updated:** [22 March 2022 18:30 UTC](https://discourse.nodered.org/t/node-red-crashed-why/59500 "2022-03-22T18:30:44Z")

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Hi, the last time neary every day my Node Red restart by itself and i could not find out why. I worked with a few charts the last time. Maybe that could be a reason ? Attached the LOG of the "restart": 7 Mar 17:01:39…

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## [Connection failure](https://discourse.nodered.org/t/connection-failure/59846)

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**Author:** [@SHAMOO](https://discourse.nodered.org/u/SHAMOO)\
**Replies:** 7\
**Last updated:** [22 March 2022 18:26 UTC](https://discourse.nodered.org/t/connection-failure/59846 "2022-03-22T18:26:05Z")

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Hi guys, Feeling dumb this morning and confused by the time change. Got to work and my node-red refuses to connect, not sure why. I've started it back up the way I normally do, in fact it usually fires right up when I c…

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## [How can i calculate execution time in node red?](https://discourse.nodered.org/t/how-can-i-calculate-execution-time-in-node-red/60208)

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**Author:** [@Fathi2022](https://discourse.nodered.org/u/Fathi2022)\
**Replies:** 2\
**Last updated:** [22 March 2022 18:25 UTC](https://discourse.nodered.org/t/how-can-i-calculate-execution-time-in-node-red/60208 "2022-03-22T18:25:57Z")

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calculate the program speed (start and end )

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## [How can i read stream xml file using Node red](https://discourse.nodered.org/t/how-can-i-read-stream-xml-file-using-node-red/60146)

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**Author:** [@Fathi2022](https://discourse.nodered.org/u/Fathi2022)\
**Replies:** 5\
**Last updated:** [22 March 2022 16:34 UTC](https://discourse.nodered.org/t/how-can-i-read-stream-xml-file-using-node-red/60146 "2022-03-22T16:34:17Z")

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Node-red to read XML file

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## [Batch node group by time interval](https://discourse.nodered.org/t/batch-node-group-by-time-interval/60156)

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**Author:** [@ZaoTX](https://discourse.nodered.org/u/ZaoTX)\
**Replies:** 15\
**Last updated:** [22 March 2022 15:39 UTC](https://discourse.nodered.org/t/batch-node-group-by-time-interval/60156 "2022-03-22T15:39:34Z")

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Dear all, Is that possible to collect a set of messages in less than 1 second? Batch node supports this function only for more than (or equal to) 1 second. It is that possible to create a Python or Javascript node to a…

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## [Password problem](https://discourse.nodered.org/t/password-problem/17572)

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**Author:** [@OZ1SEJ](https://discourse.nodered.org/u/OZ1SEJ)\
**Replies:** 10\
**Last updated:** [22 March 2022 15:07 UTC](https://discourse.nodered.org/t/password-problem/17572 "2022-03-22T15:07:03Z")

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I just installed nodered on a fresh Raspberry Pi. During installation, I was asked to enter a password - twice. I know what I entered, I use the same password for a number of applications (I know I shouldn't) but now whe…

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## [Node Red dead after infinite recursive loop](https://discourse.nodered.org/t/node-red-dead-after-infinite-recursive-loop/60197)

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**Author:** [@Tassidar](https://discourse.nodered.org/u/Tassidar)\
**Replies:** 4\
**Last updated:** [22 March 2022 14:48 UTC](https://discourse.nodered.org/t/node-red-dead-after-infinite-recursive-loop/60197 "2022-03-22T14:48:42Z")

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Hi Everyone, this is my first post. I've been using Node Red for a while and I'm quite happy with it. Since it was lots of fun and no real problems, I didn't need to ask for help... until now :stuck\_out\_tongue: Today …

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## [MQTT to MYSQL help is needed](https://discourse.nodered.org/t/mqtt-to-mysql-help-is-needed/60190)

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**Author:** [@Evos](https://discourse.nodered.org/u/Evos)\
**Replies:** 3\
**Last updated:** [22 March 2022 13:56 UTC](https://discourse.nodered.org/t/mqtt-to-mysql-help-is-needed/60190 "2022-03-22T13:56:58Z")

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Hi Everyone, I am new to Node-Red but have been running some home automation via HA for a while. With a new project I have a electricity monitor that pass's out 6 messages via MQTT and I would like to write these into …

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## [Need help in sending image attachments on email](https://discourse.nodered.org/t/need-help-in-sending-image-attachments-on-email/58226)

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**Author:** [@XhanceHd](https://discourse.nodered.org/u/XhanceHd)\
**Replies:** 11\
**Last updated:** [22 March 2022 13:53 UTC](https://discourse.nodered.org/t/need-help-in-sending-image-attachments-on-email/58226 "2022-03-22T13:53:01Z")

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I need help on sending image attachment on email. So far i can only send 1 image. I tried making an array of buffered 2 image as content with their file name on msg.attachments and shows only 1 image on my inbox. here…

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## [Modbus-client enable/disable](https://discourse.nodered.org/t/modbus-client-enable-disable/60194)

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**Author:** [@Aivaras1](https://discourse.nodered.org/u/Aivaras1)\
**Replies:** 2\
**Last updated:** [22 March 2022 13:49 UTC](https://discourse.nodered.org/t/modbus-client-enable-disable/60194 "2022-03-22T13:49:01Z")

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Hello, Is it possible to disable a modbus-client using a function or a command ? I am using this library - node-red-contrib-modbus (node) - Node-RED Best Regards Aivaras

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## [How to read xml external file](https://discourse.nodered.org/t/how-to-read-xml-external-file/12473)

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**Author:** [@sanserg](https://discourse.nodered.org/u/sanserg)\
**Replies:** 10\
**Last updated:** [22 March 2022 13:39 UTC](https://discourse.nodered.org/t/how-to-read-xml-external-file/12473 "2022-03-22T13:39:22Z")

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Hi all, I do have a xml file and I wish to read it in a node-red flow to convert the data in payload flow. does anybody has any sample about how to do it? thanks

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## [Node-red-contrib-fritz and FritzBox 7490: Error on using service / action](https://discourse.nodered.org/t/node-red-contrib-fritz-and-fritzbox-7490-error-on-using-service-action/60150)

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**Author:** [@wachovius](https://discourse.nodered.org/u/wachovius)\
**Replies:** 1\
**Last updated:** [22 March 2022 13:38 UTC](https://discourse.nodered.org/t/node-red-contrib-fritz-and-fritzbox-7490-error-on-using-service-action/60150 "2022-03-22T13:38:41Z")

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I need your help. Using node-red-contrib-fritz NodeRed 2.2.2, FB 7490 with FritzOS 07.29. Trying to make a call "urn:dslforum-org:service:X\_VoIP:1" -\> "X\_AVM-DE\_DialNumber". While this works well from an ESP8266 unit (so…

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## [How can I get the value and not override it again when starting the timer?](https://discourse.nodered.org/t/how-can-i-get-the-value-and-not-override-it-again-when-starting-the-timer/60174)

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**Author:** [@buttertoast](https://discourse.nodered.org/u/buttertoast)\
**Replies:** 11\
**Last updated:** [22 March 2022 09:28 UTC](https://discourse.nodered.org/t/how-can-i-get-the-value-and-not-override-it-again-when-starting-the-timer/60174 "2022-03-22T09:28:57Z")

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Hey! I may or may not have a rather simple question which I'm a bit stuck on though. I want to achive a counter, which starts at 5, counts down, if it gets to 0 starts at 5 again and so on. Now the problem I've is tha…

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## [Can Node-red be installed on amazon fire tablet?](https://discourse.nodered.org/t/can-node-red-be-installed-on-amazon-fire-tablet/60125)

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**Author:** [@EnergIAM](https://discourse.nodered.org/u/EnergIAM)\
**Replies:** 2\
**Last updated:** [22 March 2022 11:23 UTC](https://discourse.nodered.org/t/can-node-red-be-installed-on-amazon-fire-tablet/60125 "2022-03-22T11:23:44Z")

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Hello everyone, I tried to install on Fire OS as if it were Android but I didn't get it, can it be done?

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## [Protobuf encoder returns empty buffer payload (2)](https://discourse.nodered.org/t/protobuf-encoder-returns-empty-buffer-payload-2/60183)

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**Author:** [@Highlander](https://discourse.nodered.org/u/Highlander)\
**Replies:** 6\
**Last updated:** [22 March 2022 10:20 UTC](https://discourse.nodered.org/t/protobuf-encoder-returns-empty-buffer-payload-2/60183 "2022-03-22T10:20:27Z")

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I still fail to get the encoder to work. I have read the first post. Still no joy. the solution presented is msg.payload={payload:{....}} I still get payload:buffer\[0\] in the debug node

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