# Latest

**URL:** https://discourse.nodered.org/latest.md?page=167

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

**Page:** 168

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## [FlowFuse dashboard-2 examples](https://discourse.nodered.org/t/flowfuse-dashboard-2-examples/89889)

<div class="topic-metadata">

**Author:** [@bjvt](https://discourse.nodered.org/u/bjvt)\
**Replies:** 2\
**Last updated:** [2 August 2024 16:16 UTC](https://discourse.nodered.org/t/flowfuse-dashboard-2-examples/89889 "2024-08-02T16:16:57Z")

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I do a lot better with an example, and i can't find example flows using dashboard-2. I have a json object with analog values and wish to use a gauge. Any suggestions?

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## [Extract a part of a string](https://discourse.nodered.org/t/extract-a-part-of-a-string/89938)

<div class="topic-metadata">

**Author:** [@pgenoud](https://discourse.nodered.org/u/pgenoud)\
**Replies:** 5\
**Last updated:** [2 August 2024 14:24 UTC](https://discourse.nodered.org/t/extract-a-part-of-a-string/89938 "2024-08-02T14:24:45Z")

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Hi all, I have a use case that might be very easy for some of you. I have some codes send in Node Red as String that looks like this : A0000013683036 I would like to extract only the part 13683036. If my code sent i…

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## [Help understanding how code is referenced in docker](https://discourse.nodered.org/t/help-understanding-how-code-is-referenced-in-docker/89950)

<div class="topic-metadata">

**Author:** [@ThingsTinkerer](https://discourse.nodered.org/u/ThingsTinkerer)\
**Replies:** 3\
**Last updated:** [2 August 2024 13:22 UTC](https://discourse.nodered.org/t/help-understanding-how-code-is-referenced-in-docker/89950 "2024-08-02T13:22:42Z")

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Hi, I'm investigating some issues when deploying node-red docker container instance. On my local machine, I got the node red project set up with git. Including Dockerfile and all the rest to run in docker. Code is store…

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## [Node-RED lints when developing nodes](https://discourse.nodered.org/t/node-red-lints-when-developing-nodes/89946)

<div class="topic-metadata">

**Author:** [@SpieringsAE](https://discourse.nodered.org/u/SpieringsAE)\
**Replies:** 15\
**Last updated:** [2 August 2024 12:26 UTC](https://discourse.nodered.org/t/node-red-lints-when-developing-nodes/89946 "2024-08-02T12:26:34Z")

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Is there a way to get proper linting when developing nodes? I have no type information about the 'RED' variable that is used with the Node-RED functions. Is there some dev dependency I can add? Or something else I need…

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## [How can I restart NR after crash (Windows)](https://discourse.nodered.org/t/how-can-i-restart-nr-after-crash-windows/89914)

<div class="topic-metadata">

**Author:** [@GiovanniG](https://discourse.nodered.org/u/GiovanniG)\
**Replies:** 3\
**Last updated:** [2 August 2024 11:47 UTC](https://discourse.nodered.org/t/how-can-i-restart-nr-after-crash-windows/89914 "2024-08-02T11:47:29Z")

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Hi, my work is based on node-red-contrib-kodi which unfortunately has bugs and authos gave up on updating it. These bugs makes NR crash, so I'm looking for a way to restart NR after crashing occuring under DOS, how can I…

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## [Function Editor Font Problem with Firefox](https://discourse.nodered.org/t/function-editor-font-problem-with-firefox/89945)

<div class="topic-metadata">

**Author:** [@r375ch](https://discourse.nodered.org/u/r375ch)\
**Replies:** 1\
**Last updated:** [2 August 2024 09:31 UTC](https://discourse.nodered.org/t/function-editor-font-problem-with-firefox/89945 "2024-08-02T09:31:15Z")

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I have an issue with the font rendering of numbers in the Code Editor. Chrome shows what I expected, using the "Monospace" font: Firefox shows what I expect only if I deactive the permission to let the page load its …

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## [Help with PING flow](https://discourse.nodered.org/t/help-with-ping-flow/89936)

<div class="topic-metadata">

**Author:** [@deanfourie1](https://discourse.nodered.org/u/deanfourie1)\
**Replies:** 3\
**Last updated:** [2 August 2024 00:11 UTC](https://discourse.nodered.org/t/help-with-ping-flow/89936 "2024-08-02T00:11:25Z")

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Hi there, I am trying to use the ping component to trigger a GPIO output on my Raspberry PI. Using the PING component, I want to trigger the output when the device is unreachable, (false) Then, turn the output off aga…

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## [Chart performance issues - even with very few points](https://discourse.nodered.org/t/chart-performance-issues-even-with-very-few-points/89672)

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**Author:** [@DennisPreatto](https://discourse.nodered.org/u/DennisPreatto)\
**Replies:** 7\
**Last updated:** [1 August 2024 15:57 UTC](https://discourse.nodered.org/t/chart-performance-issues-even-with-very-few-points/89672 "2024-08-01T15:57:32Z")

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Hello everyone! I just recently started using Dashboard 2.0 to display some of the data that Node-RED is reading from different automations, but I am experiencing serious performance issues when charts are added to the …

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## [Trying to automate my gate opener](https://discourse.nodered.org/t/trying-to-automate-my-gate-opener/89928)

<div class="topic-metadata">

**Author:** [@Sirhc](https://discourse.nodered.org/u/Sirhc)\
**Replies:** 5\
**Last updated:** [1 August 2024 12:54 UTC](https://discourse.nodered.org/t/trying-to-automate-my-gate-opener/89928 "2024-08-01T12:54:04Z")

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Hi all I have a centys d5 evo gate opener and I’m trying to remotely open/close and also get open/close status back to my home automation system. Manual location here In the manual it appears as if the trigger input…

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## [Viability for this? Touch screen login/out project](https://discourse.nodered.org/t/viability-for-this-touch-screen-login-out-project/88966)

<div class="topic-metadata">

**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 124\
**Last updated:** [1 August 2024 09:36 UTC](https://discourse.nodered.org/t/viability-for-this-touch-screen-login-out-project/88966 "2024-08-01T09:36:50Z")

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I am kinda cringing at the politics involved, but it is a challenge kind of in my world just now. I'm in a club and there is a sign in/out book. It is not kept well, and other suggestions are being asked. A 12 inch to…

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## [Node Red as Public facing websocket server](https://discourse.nodered.org/t/node-red-as-public-facing-websocket-server/89833)

<div class="topic-metadata">

**Author:** [@SoundRegz](https://discourse.nodered.org/u/SoundRegz)\
**Replies:** 3\
**Last updated:** [1 August 2024 09:21 UTC](https://discourse.nodered.org/t/node-red-as-public-facing-websocket-server/89833 "2024-08-01T09:21:08Z")

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Hello, I would like to use node red as a public facing websocket server. Essentially I have a few client apps out on general internet that need to exchange messages. I have this working on a LAN at home, but would like …

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## [How to run flow fuse a service](https://discourse.nodered.org/t/how-to-run-flow-fuse-a-service/89925)

<div class="topic-metadata">

**Author:** [@abhmeh](https://discourse.nodered.org/u/abhmeh)\
**Replies:** 1\
**Last updated:** [1 August 2024 07:50 UTC](https://discourse.nodered.org/t/how-to-run-flow-fuse-a-service/89925 "2024-08-01T07:50:03Z")

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I followed the guidelines as described in this link: Running the FlowFuse Device Agent as a service on a Raspberry Pi • FlowFuse Description=flowfuse Device Agent Wants=network.target Documentation=Documentation • Fl…

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## [Error:Unknown email when using firebase](https://discourse.nodered.org/t/error-unknown-email-when-using-firebase/89857)

<div class="topic-metadata">

**Author:** [@KBujang](https://discourse.nodered.org/u/KBujang)\
**Replies:** 15\
**Last updated:** [1 August 2024 07:41 UTC](https://discourse.nodered.org/t/error-unknown-email-when-using-firebase/89857 "2024-08-01T07:41:46Z")

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Hi, im newbie here, my problem is when I try to deploy firebase, the error Unknown email.I set everything correctly follow firebase instruction.

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## [If json element is false do nothing](https://discourse.nodered.org/t/if-json-element-is-false-do-nothing/89897)

<div class="topic-metadata">

**Author:** [@MichaelRenner](https://discourse.nodered.org/u/MichaelRenner)\
**Replies:** 5\
**Last updated:** [1 August 2024 07:39 UTC](https://discourse.nodered.org/t/if-json-element-is-false-do-nothing/89897 "2024-08-01T07:39:21Z")

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Moin, I am using the tankerkoenig node to fetch gas station prices. The result is in json format, the value "prices" goes into an InfluxDB and grafana. Example for the json: { "id": "602a47f1-7182-46b6-bcf5-25c7a1d47…

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## [Switch-Node problem](https://discourse.nodered.org/t/switch-node-problem/89921)

<div class="topic-metadata">

**Author:** [@pio007](https://discourse.nodered.org/u/pio007)\
**Replies:** 7\
**Last updated:** [1 August 2024 06:18 UTC](https://discourse.nodered.org/t/switch-node-problem/89921 "2024-08-01T06:18:33Z")

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Hello, I have a problem with a switch node or a question for understanding. I have an input value from a Zigbee sensor ("feuchte"). From a visualization I have an input value ("schwelle" which I first convert into a n…

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## [JOIN multiple SPLIT to combined object](https://discourse.nodered.org/t/join-multiple-split-to-combined-object/89878)

<div class="topic-metadata">

**Author:** [@H3lpd3sk](https://discourse.nodered.org/u/H3lpd3sk)\
**Replies:** 15\
**Last updated:** [31 July 2024 22:13 UTC](https://discourse.nodered.org/t/join-multiple-split-to-combined-object/89878 "2024-07-31T22:13:15Z")

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Hi all, Running 4.0.1 I have the folloing flow, and trying for few hours now to make it do what I want, but getting frustrated now. Maybe someone can enlighten me how to proceed. I looked around the web and forum ofco…

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## ["Lost connection to server error" docker instance on synology](https://discourse.nodered.org/t/lost-connection-to-server-error-docker-instance-on-synology/89918)

<div class="topic-metadata">

**Author:** [@ljlhouben](https://discourse.nodered.org/u/ljlhouben)\
**Replies:** 4\
**Last updated:** [31 July 2024 19:27 UTC](https://discourse.nodered.org/t/lost-connection-to-server-error-docker-instance-on-synology/89918 "2024-07-31T19:27:55Z")

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Hi All I'm a complete newbee concerning Node-Red, I installed the version v4.0.2 on my synology in a 'container' (used to be docker). I tried my first steps by adding an 'inject' and a 'debug' and I deployed it....but u…

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## [Device overview dashboard2](https://discourse.nodered.org/t/device-overview-dashboard2/89911)

<div class="topic-metadata">

**Author:** [@KarolisL](https://discourse.nodered.org/u/KarolisL)\
**Replies:** 1\
**Last updated:** [31 July 2024 16:38 UTC](https://discourse.nodered.org/t/device-overview-dashboard2/89911 "2024-07-31T16:38:00Z")

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Inspired by: and My use case: I don't know how many devices are active (each project has different amount of clients) I just listen for incoming MQTT reports and present latest state of data. The main purpose was to…

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## [Node-red-contrib-persist & localhost](https://discourse.nodered.org/t/node-red-contrib-persist-localhost/89713)

<div class="topic-metadata">

**Author:** [@sradoff](https://discourse.nodered.org/u/sradoff)\
**Replies:** 9\
**Last updated:** [31 July 2024 14:26 UTC](https://discourse.nodered.org/t/node-red-contrib-persist-localhost/89713 "2024-07-31T14:26:39Z")

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I have inserted Node-red-contrib-persist into a recent flow running the most current version of node-red. After a Deploy, the dashboard can no longer be displayed. Both Microsoft Edge and Google Chrome report “Connection…

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## [No data from the sensor in the MQTT node](https://discourse.nodered.org/t/no-data-from-the-sensor-in-the-mqtt-node/89873)

<div class="topic-metadata">

**Author:** [@Kralle](https://discourse.nodered.org/u/Kralle)\
**Replies:** 4\
**Last updated:** [31 July 2024 13:33 UTC](https://discourse.nodered.org/t/no-data-from-the-sensor-in-the-mqtt-node/89873 "2024-07-31T13:33:58Z")

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Hello, I need your concentrated knowledge. I ordered a new sensor (Dragino CPL03-LB) I registered the sensor in the TTN and inserted the appropriate payload formatter. The sensor is sending, I see that in the TTN. Us…

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## [2 inputs merge into 1 output](https://discourse.nodered.org/t/2-inputs-merge-into-1-output/89905)

<div class="topic-metadata">

**Author:** [@mikahaller](https://discourse.nodered.org/u/mikahaller)\
**Replies:** 4\
**Last updated:** [31 July 2024 11:47 UTC](https://discourse.nodered.org/t/2-inputs-merge-into-1-output/89905 "2024-07-31T11:47:43Z")

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I have 2 inputs (Int32), one displays "left time in min" and one displays "left time in hours". "General left time" is both, X hours and Y min. So far i show both separately in DB2.0, but i would like to have them as on…

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## [Personalised Multi User Dashboards with Node-RED Dashboard 2.0 • FlowFuse Webinar](https://discourse.nodered.org/t/personalised-multi-user-dashboards-with-node-red-dashboard-2-0-flowfuse-webinar/85492)

<div class="topic-metadata">

**Author:** [@gdziuba](https://discourse.nodered.org/u/gdziuba)\
**Replies:** 30\
**Last updated:** [31 July 2024 10:57 UTC](https://discourse.nodered.org/t/personalised-multi-user-dashboards-with-node-red-dashboard-2-0-flowfuse-webinar/85492 "2024-07-31T10:57:36Z")

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Join us on February 29th to discuss Multi-User Dashboards with Joe Pavitt. Node-RED Dashboard 2.0 has recently seen it's first major, stable release. In this Webinar, Joe Pavitt will demonstrate some of the new features…

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## [Problem with a Node-red pallet that no longer starts up](https://discourse.nodered.org/t/problem-with-a-node-red-pallet-that-no-longer-starts-up/89855)

<div class="topic-metadata">

**Author:** [@Ayno](https://discourse.nodered.org/u/Ayno)\
**Replies:** 7\
**Last updated:** [31 July 2024 10:23 UTC](https://discourse.nodered.org/t/problem-with-a-node-red-pallet-that-no-longer-starts-up/89855 "2024-07-31T10:23:34Z")

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Hello I downloaded this palette: And now, my Node-Red won't start, here's the error message I get: juil. 29 18:05:01 GIN Node-RED\[33779\]: 29 Jul 18:05:01 - \[warn\] \[RED.events\] Deprecated use of "nodes-started" event …

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## [Dynamically set MQTT broker configurations](https://discourse.nodered.org/t/dynamically-set-mqtt-broker-configurations/89902)

<div class="topic-metadata">

**Author:** [@mr-jaffery](https://discourse.nodered.org/u/mr-jaffery)\
**Replies:** 2\
**Last updated:** [31 July 2024 09:14 UTC](https://discourse.nodered.org/t/dynamically-set-mqtt-broker-configurations/89902 "2024-07-31T09:14:03Z")

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Is there a way to set MQTT broker configurations like server, username and password dynamically. Maybe,we can configure these things through the input to the MQTT node, or is there any other way?

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## [我希望自定义一个有多个输入和输出端口的节点，但是输入端口一直被限制最大为1个，请问我如何才能做到创建节点有多个输入端口？](https://discourse.nodered.org/t/topic/89901)

<div class="topic-metadata">

**Author:** [@cms](https://discourse.nodered.org/u/cms)\
**Replies:** 2\
**Last updated:** [31 July 2024 09:10 UTC](https://discourse.nodered.org/t/topic/89901 "2024-07-31T09:10:43Z")

</div>

我希望自定义一个有多个输入和输出端口的节点，但是输入端口一直被限制最大为1个，请问我如何才能做到创建节点有多个输入端口？

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## [Problem deploying flows on RasPi 4 project, help needed!](https://discourse.nodered.org/t/problem-deploying-flows-on-raspi-4-project-help-needed/89567)

<div class="topic-metadata">

**Author:** [@WHermes](https://discourse.nodered.org/u/WHermes)\
**Replies:** 7\
**Last updated:** [31 July 2024 08:00 UTC](https://discourse.nodered.org/t/problem-deploying-flows-on-raspi-4-project-help-needed/89567 "2024-07-31T08:00:48Z")

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Hi for everyone! First off all i´m new in this forum and also rookie with NR. I have done some projects with it but nothing special. So at the moment i´m doing project which setup is: HW: Raspberry Pi 4 Model B, 4GB R…

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## [Suffix for text output](https://discourse.nodered.org/t/suffix-for-text-output/89879)

<div class="topic-metadata">

**Author:** [@mikahaller](https://discourse.nodered.org/u/mikahaller)\
**Replies:** 29\
**Last updated:** [31 July 2024 07:49 UTC](https://discourse.nodered.org/t/suffix-for-text-output/89879 "2024-07-31T07:49:58Z")

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For dashboard 1 i could just edit the value format but this is not possible anymore for the text output in dashboard 2. Is there a simple way i don't see? I would like to add dimensions after the values, e.g. "value" °C …

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## [Change Node outputting multiple times](https://discourse.nodered.org/t/change-node-outputting-multiple-times/89841)

<div class="topic-metadata">

**Author:** [@cwagdev](https://discourse.nodered.org/u/cwagdev)\
**Replies:** 10\
**Last updated:** [31 July 2024 06:29 UTC](https://discourse.nodered.org/t/change-node-outputting-multiple-times/89841 "2024-07-31T06:29:19Z")

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I am new to all of this and seeing unexpected behavior from the output of a change node. It's a simple "move" but the output fires many times (around 20). Is this normal? Here's a screenshot of the debug output. And …

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## [Node-RED 4 function node error](https://discourse.nodered.org/t/node-red-4-function-node-error/89887)

<div class="topic-metadata">

**Author:** [@wb666greene](https://discourse.nodered.org/u/wb666greene)\
**Replies:** 4\
**Last updated:** [31 July 2024 01:05 UTC](https://discourse.nodered.org/t/node-red-4-function-node-error/89887 "2024-07-31T01:05:15Z")

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I just installed node-red on a new system using the bash script and ended up with node-red version 4. I imported my flow and it all seemed to work. Then I went into a function node to look at what I'd done years ago. …

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## [How to use custom font in ui-text?](https://discourse.nodered.org/t/how-to-use-custom-font-in-ui-text/89867)

<div class="topic-metadata">

**Author:** [@54jinyistudio](https://discourse.nodered.org/u/54jinyistudio)\
**Replies:** 7\
**Last updated:** [31 July 2024 00:49 UTC](https://discourse.nodered.org/t/how-to-use-custom-font-in-ui-text/89867 "2024-07-31T00:49:37Z")

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I need to define a font in ui-template first. But I don't know how to reference the new font to a used ui-text. \<style\> @font-face { font-family:segment; src:url "(http://127.0.0.1:1890/switch/assets…

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