# Latest

**URL:** https://discourse.nodered.org/latest.md?page=1060

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

**Page:** 1061

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## [Block env.get in function node](https://discourse.nodered.org/t/block-env-get-in-function-node/28872)

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**Author:** [@edoardottt](https://discourse.nodered.org/u/edoardottt)\
**Replies:** 9\
**Last updated:** [24 June 2020 15:26 UTC](https://discourse.nodered.org/t/block-env-get-in-function-node/28872 "2020-06-24T15:26:14Z")

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Hi. I use node-red in a shared system, so others users can access the editor. I don't want to exclude from the editor the function node. But I saw that, if I know the environment variables name, I can print them on debu…

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## [Convert hex in bin](https://discourse.nodered.org/t/convert-hex-in-bin/28886)

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**Author:** [@caveman](https://discourse.nodered.org/u/caveman)\
**Replies:** 10\
**Last updated:** [24 June 2020 15:02 UTC](https://discourse.nodered.org/t/convert-hex-in-bin/28886 "2020-06-24T15:02:53Z")

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Hi all, i use in an Node Red function node: msg.payload = parseInt("0x"+msg.payload); msg.payload = msg.payload.toString(2).padStart(96, '0'); to convert following hex value: 30347A120002AF4400000001. the result is n…

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## [DSM timer , accumalative timer with display](https://discourse.nodered.org/t/dsm-timer-accumalative-timer-with-display/28894)

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**Author:** [@SimpleSimon](https://discourse.nodered.org/u/SimpleSimon)\
**Replies:** 0\
**Last updated:** [24 June 2020 14:39 UTC](https://discourse.nodered.org/t/dsm-timer-accumalative-timer-with-display/28894 "2020-06-24T14:39:34Z")

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hello everyone , i am a newbie hope your all keeping well. sorry if this has been answered before , i did a search and found similar stuff, but that did not work for my flow. so i have a mqtt device , that gives me a …

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## [MQTT broker error?](https://discourse.nodered.org/t/mqtt-broker-error/28794)

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**Author:** [@Martin10](https://discourse.nodered.org/u/Martin10)\
**Replies:** 20\
**Last updated:** [24 June 2020 13:24 UTC](https://discourse.nodered.org/t/mqtt-broker-error/28794 "2020-06-24T13:24:52Z")

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Hi. I create some flow, that contain mqtt out node, in order to connect to mqtt thingspeak broker, but after i create it the RPI just block. And now every time i start node-red it attempts to connect to he broker (altho…

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## [Cannot find the package of nodes my flow requires](https://discourse.nodered.org/t/cannot-find-the-package-of-nodes-my-flow-requires/28887)

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**Author:** [@Alilazzal](https://discourse.nodered.org/u/Alilazzal)\
**Replies:** 1\
**Last updated:** [24 June 2020 13:16 UTC](https://discourse.nodered.org/t/cannot-find-the-package-of-nodes-my-flow-requires/28887 "2020-06-24T13:16:42Z")

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Hello, Complete Beginner here, I am working on a flow forwarded to me by someone, and one of the nodes are not configured in my local system. on NODE RED website, it says the package has been removed. How can I get th…

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## [Node-RED won't start anymore!](https://discourse.nodered.org/t/node-red-wont-start-anymore/28884)

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**Author:** [@JESonger](https://discourse.nodered.org/u/JESonger)\
**Replies:** 2\
**Last updated:** [24 June 2020 12:43 UTC](https://discourse.nodered.org/t/node-red-wont-start-anymore/28884 "2020-06-24T12:43:56Z")

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It's because I uninstalled the IFTTT Broker node, but it didn't uninstall the setting that tries to install it as a service at startup. So when I node-red-start, it hangs while waiting for that non-existent service. I'…

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## [Prometheus or Elasticsearch export](https://discourse.nodered.org/t/prometheus-or-elasticsearch-export/28878)

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**Author:** [@pax](https://discourse.nodered.org/u/pax)\
**Replies:** 4\
**Last updated:** [24 June 2020 11:35 UTC](https://discourse.nodered.org/t/prometheus-or-elasticsearch-export/28878 "2020-06-24T11:35:34Z")

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Is there a way to export metrics from node-red to prometheus or elasticsearch / APM ? Looking for ways to integrate our node-red deployments into our monitoring and alarming systems.

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## [HELP ! Reading data from a PLC through Modbus TCP](https://discourse.nodered.org/t/help-reading-data-from-a-plc-through-modbus-tcp/28752)

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**Author:** [@C0RT3X](https://discourse.nodered.org/u/C0RT3X)\
**Replies:** 4\
**Last updated:** [24 June 2020 11:19 UTC](https://discourse.nodered.org/t/help-reading-data-from-a-plc-through-modbus-tcp/28752 "2020-06-24T11:19:11Z")

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Hi everyone ! I am working on a project for my thesis and a part of this one is to displays the data received from the sensors on the graphical interface using the red node. I have successfully built the project for PL…

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## [Section for contrib node code development?](https://discourse.nodered.org/t/section-for-contrib-node-code-development/28875)

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**Author:** [@cymplecy](https://discourse.nodered.org/u/cymplecy)\
**Replies:** 10\
**Last updated:** [24 June 2020 10:23 UTC](https://discourse.nodered.org/t/section-for-contrib-node-code-development/28875 "2020-06-24T10:23:09Z")

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Is it worth having a separate section for contrib node code development questions If answer is yes - I'd be willing to trawl past posts and re-categorise them :slight\_smile:

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## [Need to trigger an event at 00:00,00:05... (sync with clock)](https://discourse.nodered.org/t/need-to-trigger-an-event-at-00-00-00-05-sync-with-clock/28575)

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**Author:** [@AK51](https://discourse.nodered.org/u/AK51)\
**Replies:** 12\
**Last updated:** [24 June 2020 10:12 UTC](https://discourse.nodered.org/t/need-to-trigger-an-event-at-00-00-00-05-sync-with-clock/28575 "2020-06-24T10:12:56Z")

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My project requires to trigger an event at every 5 mins which has to be exact with the clock. i.e. at 00:00, 00:05, 00:10, ... I can trigger an event at every 5 mins using a time node. The problem is that I can not sync…

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## [After install autostart on boot no authenthication](https://discourse.nodered.org/t/after-install-autostart-on-boot-no-authenthication/28862)

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**Author:** [@E\_T](https://discourse.nodered.org/u/E_T)\
**Replies:** 2\
**Last updated:** [24 June 2020 09:40 UTC](https://discourse.nodered.org/t/after-install-autostart-on-boot-no-authenthication/28862 "2020-06-24T09:40:48Z")

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Ther is a virtual machine on a Server: Ubuntu 20.04 LTS (GNU/Linux 5.4.0-37-generic x86\_64) After installing node-red (sudo npm install -g --unsafe-perm node-red) i secured node-red (edit file : /home/se/.node-red/sett…

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## [Sample code for uibuilder](https://discourse.nodered.org/t/sample-code-for-uibuilder/28855)

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**Author:** [@tfmeier](https://discourse.nodered.org/u/tfmeier)\
**Replies:** 4\
**Last updated:** [24 June 2020 09:18 UTC](https://discourse.nodered.org/t/sample-code-for-uibuilder/28855 "2020-06-24T09:18:31Z")

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I am interested in the flexibility of uibuilder but understand at the same time that there's a significant learning curve for a non-hardcore developer like myself. However when I have some sample code I can usually work …

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## [UIBuilder with semantic UI](https://discourse.nodered.org/t/uibuilder-with-semantic-ui/28870)

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**Author:** [@vahidsam](https://discourse.nodered.org/u/vahidsam)\
**Replies:** 1\
**Last updated:** [24 June 2020 08:42 UTC](https://discourse.nodered.org/t/uibuilder-with-semantic-ui/28870 "2020-06-24T08:42:04Z")

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Hi all, I installed node-red-contrib-uibuilder .Is it possible to confing uibuilder with semantic UI? thnks

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## [Exec node in spawn mode output to file](https://discourse.nodered.org/t/exec-node-in-spawn-mode-output-to-file/28864)

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**Author:** [@hassan.nabeel](https://discourse.nodered.org/u/hassan.nabeel)\
**Replies:** 1\
**Last updated:** [24 June 2020 07:53 UTC](https://discourse.nodered.org/t/exec-node-in-spawn-mode-output-to-file/28864 "2020-06-24T07:53:45Z")

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Hi, I am trying to record a rtsp stream from IP camera to a local file using VLC. Command runs fine in nodered exec node in spawn mode. cvlc rtsp://192.168.133.11:554/main --gl=glx --sout "#std{access=file{no-overwrit…

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## [Extremely slow Dashboard because of Graphs](https://discourse.nodered.org/t/extremely-slow-dashboard-because-of-graphs/28722)

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**Author:** [@retep998](https://discourse.nodered.org/u/retep998)\
**Replies:** 9\
**Last updated:** [24 June 2020 07:47 UTC](https://discourse.nodered.org/t/extremely-slow-dashboard-because-of-graphs/28722 "2020-06-24T07:47:43Z")

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Hello and sorry if that topic was discussed already....i found several similar discussions already but still dont know what is the best way to solve it. I run a rental villa with 6 bed rooms in Thailand and have door a…

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## [Branching flow on basis of number taken from user](https://discourse.nodered.org/t/branching-flow-on-basis-of-number-taken-from-user/28851)

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**Author:** [@deekshaha](https://discourse.nodered.org/u/deekshaha)\
**Replies:** 3\
**Last updated:** [24 June 2020 07:42 UTC](https://discourse.nodered.org/t/branching-flow-on-basis-of-number-taken-from-user/28851 "2020-06-24T07:42:04Z")

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I am taking input from user in a form field, no of hours, and on the basis of that,if hours is less than 48 i want to make one api call and then the subsequent flow and if number is more than 48 another route. Can anyone…

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## [Either / or - smart plug](https://discourse.nodered.org/t/either-or-smart-plug/28750)

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**Author:** [@maku12](https://discourse.nodered.org/u/maku12)\
**Replies:** 4\
**Last updated:** [24 June 2020 06:34 UTC](https://discourse.nodered.org/t/either-or-smart-plug/28750 "2020-06-24T06:34:28Z")

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Hi, I have 2 smart plugs (hs100 from tp link-\>node is available) and I want to switch them ON or OFF but the state is depening on the other. For example, if smart plug A is ON the smart plug B has to be OFF an vice versa…

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## [BLE with Node-RED Dashboard](https://discourse.nodered.org/t/ble-with-node-red-dashboard/28763)

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**Author:** [@BrainBomber100](https://discourse.nodered.org/u/BrainBomber100)\
**Replies:** 3\
**Last updated:** [24 June 2020 05:26 UTC](https://discourse.nodered.org/t/ble-with-node-red-dashboard/28763 "2020-06-24T05:26:31Z")

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Is there any way I can integrate Bluetooth Low Energy functionality with the Node-RED Dashboard, so that any device with the dashboard open will be able to detect the peripheral devices that I use in my flows? I want to …

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## [Remote connection "lost" but can still deploy](https://discourse.nodered.org/t/remote-connection-lost-but-can-still-deploy/28849)

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**Author:** [@AndyDufresne422](https://discourse.nodered.org/u/AndyDufresne422)\
**Replies:** 0\
**Last updated:** [24 June 2020 00:28 UTC](https://discourse.nodered.org/t/remote-connection-lost-but-can-still-deploy/28849 "2020-06-24T00:28:45Z")

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So, I looked to see what might be causing this and I'm not sure if its how I have everything set up or if it is the https auth I am using, but... I can connect locally to my NR using the local.host (or IP address) usin…

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## [Node Red website asks credential repeatdly and my url not always opens ?what could be the possible reasons](https://discourse.nodered.org/t/node-red-website-asks-credential-repeatdly-and-my-url-not-always-opens-what-could-be-the-possible-reasons/27533)

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**Author:** [@DawoodTahir](https://discourse.nodered.org/u/DawoodTahir)\
**Replies:** 7\
**Last updated:** [23 June 2020 23:26 UTC](https://discourse.nodered.org/t/node-red-website-asks-credential-repeatdly-and-my-url-not-always-opens-what-could-be-the-possible-reasons/27533 "2020-06-23T23:26:03Z")

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can anyone help me out with the information how im gonna configure the node red so it stop annoying me with repeated same issues !!

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## [Help debugging "random" node-red-node-ping 0.2.0 crash](https://discourse.nodered.org/t/help-debugging-random-node-red-node-ping-0-2-0-crash/28829)

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**Author:** [@redDawn](https://discourse.nodered.org/u/redDawn)\
**Replies:** 5\
**Last updated:** [23 June 2020 23:13 UTC](https://discourse.nodered.org/t/help-debugging-random-node-red-node-ping-0-2-0-crash/28829 "2020-06-23T23:13:00Z")

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Hello all, Attached is the relevant log. I get these random crashes with the ping node. I looked at the code and there does appear to be an "on" property. I just can't track this down. Any ideas on how to track this…

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## [I need MQTT node that have input and output](https://discourse.nodered.org/t/i-need-mqtt-node-that-have-input-and-output/28451)

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**Author:** [@denisjoshua](https://discourse.nodered.org/u/denisjoshua)\
**Replies:** 40\
**Last updated:** [23 June 2020 22:37 UTC](https://discourse.nodered.org/t/i-need-mqtt-node-that-have-input-and-output/28451 "2020-06-23T22:37:28Z")

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I there all, I so there is MQTT node that cab be used to input and the other one that can be used like output. But how can I use a MQTT node that have also input and also output please ? I wonder how can I use a node-…

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## [Node-Red Email and GMail Folders](https://discourse.nodered.org/t/node-red-email-and-gmail-folders/28453)

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**Author:** [@craigcurtin](https://discourse.nodered.org/u/craigcurtin)\
**Replies:** 2\
**Last updated:** [23 June 2020 22:30 UTC](https://discourse.nodered.org/t/node-red-email-and-gmail-folders/28453 "2020-06-23T22:30:09Z")

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Guys, I know GMail does not really support the concept of folders - but using IMAP tags and labels it appears that they are folders to IMAP clients. Does anyone know (or has tried) to poll a single IMAP folder on Gmail…

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## [Nodes Installieren Palette Verwalten](https://discourse.nodered.org/t/nodes-installieren-palette-verwalten/28844)

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**Author:** [@Rappsj](https://discourse.nodered.org/u/Rappsj)\
**Replies:** 1\
**Last updated:** [23 June 2020 20:21 UTC](https://discourse.nodered.org/t/nodes-installieren-palette-verwalten/28844 "2020-06-23T20:21:49Z")

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Hallo Leute ich brauche eure Hilfe, ich bin Neu im Thema und wollte die KNX Node Installieren dazu gibt es ja zahlreichen tutorials im Netz.denoch schaffe ich es Nicht bei mir wir der Menüpunkt Paletten Verwalten nicht a…

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## [\[Announce\] node-red-contrib-ui-value-trail](https://discourse.nodered.org/t/announce-node-red-contrib-ui-value-trail/17147)

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**Author:** [@hotNipi](https://discourse.nodered.org/u/hotNipi)\
**Replies:** 8\
**Last updated:** [23 June 2020 20:02 UTC](https://discourse.nodered.org/t/announce-node-red-contrib-ui-value-trail/17147 "2020-06-23T20:02:56Z")

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Little addition to dashboard widgets. Lightweight history line to be presented near some measured value field or gauge.

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## [Configuring FINS NODE](https://discourse.nodered.org/t/configuring-fins-node/28781)

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**Author:** [@NaniAP](https://discourse.nodered.org/u/NaniAP)\
**Replies:** 3\
**Last updated:** [23 June 2020 19:40 UTC](https://discourse.nodered.org/t/configuring-fins-node/28781 "2020-06-23T19:40:47Z")

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Hi. I am trying to get data from OMRON NX1P2 using FINS node. !st of all thanks for developing the nodes. I am new to node-red. i have problems configuring the FINS node. Any help or probably an example or two that i ca…

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## [Old code deploys after reboot](https://discourse.nodered.org/t/old-code-deploys-after-reboot/28803)

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**Author:** [@sallen135](https://discourse.nodered.org/u/sallen135)\
**Replies:** 6\
**Last updated:** [23 June 2020 19:26 UTC](https://discourse.nodered.org/t/old-code-deploys-after-reboot/28803 "2020-06-23T19:26:54Z")

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Recently when my Pi restarts, the node red code that it loads is not the latest. I can make changes and deploy (both full and modified nodes) and the changes work and remain. If the pi restarts, these changes are no long…

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## [Node-red-log to file](https://discourse.nodered.org/t/node-red-log-to-file/27683)

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**Author:** [@StrongTown](https://discourse.nodered.org/u/StrongTown)\
**Replies:** 17\
**Last updated:** [23 June 2020 18:58 UTC](https://discourse.nodered.org/t/node-red-log-to-file/27683 "2020-06-23T18:58:14Z")

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By now my node-red application is fairly complex. I have 19 tabs each with many nodes and all with some form of unique function coding, many that are extensive. While it seems to run as expected for lengthy periods (days…

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## [Using msg.payload in a SQL query](https://discourse.nodered.org/t/using-msg-payload-in-a-sql-query/15995)

<div class="topic-metadata">

**Author:** [@kresten88](https://discourse.nodered.org/u/kresten88)\
**Replies:** 7\
**Last updated:** [23 June 2020 18:05 UTC](https://discourse.nodered.org/t/using-msg-payload-in-a-sql-query/15995 "2020-06-23T18:05:42Z")

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This might be a simple one... When I select a value from a dropdownlist the msg.payload is e.g. 1E6 Now I would like to use that msg.payload to make a query (mysql node) However I cannot find a working function for th…

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## [Worldmap-tracks - what does 'Track Layer' do?](https://discourse.nodered.org/t/worldmap-tracks-what-does-track-layer-do/28818)

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**Author:** [@zenofmud](https://discourse.nodered.org/u/zenofmud)\
**Replies:** 1\
**Last updated:** [23 June 2020 16:51 UTC](https://discourse.nodered.org/t/worldmap-tracks-what-does-track-layer-do/28818 "2020-06-23T16:51:17Z")

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Playing with the worldmap-tracks node (part of node-red-contrib-web-worldmap) and there is a configuration option 'Track Layer' but no explanation (that I can find) of what it does. Sooo, what do the three options do o…

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