# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=727

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

**Page:** 728

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## [Combined two data](https://discourse.nodered.org/t/combined-two-data/28856)

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**Author:** [@seyeon](https://discourse.nodered.org/u/seyeon)\
**Replies:** 21\
**Last updated:** [25 June 2020 11:14 UTC](https://discourse.nodered.org/t/combined-two-data/28856 "2020-06-25T11:14:52Z")

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hello, guys. First of all, I'm sorry to use a translator. I try to adjust the brightness using two data. 3 conditional statement sensor \<= 40 & light == 250 \>\>\> bright dimming x\<=250; x++ 40 \< sensor…

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## [Trying to work out why not getting updates for a particular output from a script](https://discourse.nodered.org/t/trying-to-work-out-why-not-getting-updates-for-a-particular-output-from-a-script/28810)

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**Author:** [@dclear](https://discourse.nodered.org/u/dclear)\
**Replies:** 20\
**Last updated:** [25 June 2020 10:25 UTC](https://discourse.nodered.org/t/trying-to-work-out-why-not-getting-updates-for-a-particular-output-from-a-script/28810 "2020-06-25T10:25:31Z")

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I have a PHP script which returns states for the extensions on my home's phone network. I recently moved from the exec node to the daemon node which bizarrely necessitated a couple of unwanted changes to the way my flow…

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## [Proposed values for subflows](https://discourse.nodered.org/t/proposed-values-for-subflows/28921)

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**Author:** [@NeoCortex](https://discourse.nodered.org/u/NeoCortex)\
**Replies:** 5\
**Last updated:** [25 June 2020 10:23 UTC](https://discourse.nodered.org/t/proposed-values-for-subflows/28921 "2020-06-25T10:23:34Z")

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Hi everyone, This is my first post, after playing around with node-red for some hours... I really love Node-red and want to make my flows tidier und easier to service... I use Node-red in conjunction with debmatic to …

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## [Convert hex string to float](https://discourse.nodered.org/t/convert-hex-string-to-float/28893)

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**Author:** [@steifanc](https://discourse.nodered.org/u/steifanc)\
**Replies:** 20\
**Last updated:** [25 June 2020 10:23 UTC](https://discourse.nodered.org/t/convert-hex-string-to-float/28893 "2020-06-25T10:23:00Z")

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Hi, This is probably pretty rudimentary but I can't seem to get it right. I have a JSON object containing a HEX value, im trying to change it to a float/decimal it's a temperature reading.

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## [Exec node 2 commands after each other](https://discourse.nodered.org/t/exec-node-2-commands-after-each-other/28957)

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**Author:** [@zsoni96](https://discourse.nodered.org/u/zsoni96)\
**Replies:** 2\
**Last updated:** [25 June 2020 10:12 UTC](https://discourse.nodered.org/t/exec-node-2-commands-after-each-other/28957 "2020-06-25T10:12:07Z")

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Hi I ve got a question when I run exec commands it works perfectly but i want it to do 2 commands after each other is it posssible? eg: cd to a given directoy start a sometgin in that directory eg.: a python script

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## [Http in POST with file attachement](https://discourse.nodered.org/t/http-in-post-with-file-attachement/28901)

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**Author:** [@Bond246](https://discourse.nodered.org/u/Bond246)\
**Replies:** 2\
**Last updated:** [25 June 2020 10:05 UTC](https://discourse.nodered.org/t/http-in-post-with-file-attachement/28901 "2020-06-25T10:05:48Z")

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Hello everyone, i'm trying to define a flow with "http in"-node in POST-mode. Idea is to upload a xml-file via http-POST from a different machine to node red. In node-red i want to use this file. I've already configur…

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## [Node-Red Thingsboard mqtt problem](https://discourse.nodered.org/t/node-red-thingsboard-mqtt-problem/28940)

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**Author:** [@profile](https://discourse.nodered.org/u/profile)\
**Replies:** 3\
**Last updated:** [25 June 2020 08:13 UTC](https://discourse.nodered.org/t/node-red-thingsboard-mqtt-problem/28940 "2020-06-25T08:13:22Z")

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Hello i'm not able to send values to Thingsboard from node red using mqtt. Broker = demo.thingsboard.io port = 1883 topic = v1/devices/me/telemetry copied the correct access token multiple times. have tried sending…

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## [MQTT Thingsboard; no trace](https://discourse.nodered.org/t/mqtt-thingsboard-no-trace/17047)

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**Author:** [@claib](https://discourse.nodered.org/u/claib)\
**Replies:** 33\
**Last updated:** [25 June 2020 06:49 UTC](https://discourse.nodered.org/t/mqtt-thingsboard-no-trace/17047 "2020-06-25T06:49:34Z")

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Hi there i've got a NR instance on RPI up and running. Some Modbus sensors sending MQTT Messages to test successfully to hive broker; works fine I can re-read them even from the broker: I want to send the messages …

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## [Sonoff SV Gate controller with remote wifi button](https://discourse.nodered.org/t/sonoff-sv-gate-controller-with-remote-wifi-button/28814)

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**Author:** [@anuccite](https://discourse.nodered.org/u/anuccite)\
**Replies:** 1\
**Last updated:** [25 June 2020 04:57 UTC](https://discourse.nodered.org/t/sonoff-sv-gate-controller-with-remote-wifi-button/28814 "2020-06-25T04:57:13Z")

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I have a Sliding Gate to my Rear Garage. I used the ALEKO AC1400NOR Chain Driven Sliding Gate Opener I have sucessfully gotten it working using digiblurDIY Guide to "Smart Garage Door Solutions", I just need to work ou…

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## [Nbrowser module not working in linux](https://discourse.nodered.org/t/nbrowser-module-not-working-in-linux/28913)

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**Author:** [@BradleyL717](https://discourse.nodered.org/u/BradleyL717)\
**Replies:** 2\
**Last updated:** [25 June 2020 02:12 UTC](https://discourse.nodered.org/t/nbrowser-module-not-working-in-linux/28913 "2020-06-25T02:12:23Z")

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Hello, I’m trying to use the nbrowser node in my node red instance that is installed on a Ubuntu vm server. I’ve read through various forums on nightmare.js fixes with Linux servers but no luck yet. After constructing…

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## [Dashboard Text Node Without Label?](https://discourse.nodered.org/t/dashboard-text-node-without-label/28915)

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**Author:** [@Nodi.Rubrum](https://discourse.nodered.org/u/Nodi.Rubrum)\
**Replies:** 2\
**Last updated:** [24 June 2020 20:49 UTC](https://discourse.nodered.org/t/dashboard-text-node-without-label/28915 "2020-06-24T20:49:58Z")

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Is there a way to use the dashboard text node without display of the label? I suspect using a dashboard template is an option, but no sure how to setup the html in said template node to do so?

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## [(Solved) How to able Node-Red to create files and folders on DietPi](https://discourse.nodered.org/t/solved-how-to-able-node-red-to-create-files-and-folders-on-dietpi/4973)

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**Author:** [@Shark\_Polo](https://discourse.nodered.org/u/Shark_Polo)\
**Replies:** 29\
**Last updated:** [24 June 2020 19:08 UTC](https://discourse.nodered.org/t/solved-how-to-able-node-red-to-create-files-and-folders-on-dietpi/4973 "2020-06-24T19:08:55Z")

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Hi all. I'm getting this permission error when trying to save data as a file: failed to create file: Error: EACCES: permission denied, mkdir ... I solve it by creating myself the directories and the file and given per…

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## [Simple test node, close event never called?](https://discourse.nodered.org/t/simple-test-node-close-event-never-called/28897)

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**Author:** [@Nodi.Rubrum](https://discourse.nodered.org/u/Nodi.Rubrum)\
**Replies:** 12\
**Last updated:** [24 June 2020 17:15 UTC](https://discourse.nodered.org/t/simple-test-node-close-event-never-called/28897 "2020-06-24T17:15:20Z")

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I created a simple node example, just to test input and close events. The close event never seems to fire? Did I do something boneheaded here? The node works as expected, it get the input notification in log, but neve…

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## [Contrib Keypress](https://discourse.nodered.org/t/contrib-keypress/28820)

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**Author:** [@Laurent](https://discourse.nodered.org/u/Laurent)\
**Replies:** 16\
**Last updated:** [24 June 2020 16:28 UTC](https://discourse.nodered.org/t/contrib-keypress/28820 "2020-06-24T16:28:15Z")

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Good morning all, The debug node at the exit of my keypress node remains hopelessly empty although I type like a madman on my keyboard. The newbie that I am has been in the dark for three days: nothing in this forum no…

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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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## [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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## [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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## [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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