# Latest

**URL:** https://discourse.nodered.org/latest.md?page=422

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

**Page:** 423

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## [Uibuilder Uncaught TypeError: Vue is not a constructor](https://discourse.nodered.org/t/uibuilder-uncaught-typeerror-vue-is-not-a-constructor/73407)

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**Author:** [@KarolisL](https://discourse.nodered.org/u/KarolisL)\
**Replies:** 4\
**Last updated:** [9 January 2023 20:55 UTC](https://discourse.nodered.org/t/uibuilder-uncaught-typeerror-vue-is-not-a-constructor/73407 "2023-01-09T20:55:25Z")

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I've followed steps from Uibuilder: Getting Started Walkthrough - #4 by HaroldPetersInskipp, initial uibtest flow works fine, but I'm stuck when I tried this flow: https://flows.nodered.org/flow/bbe6803d9daebda5c991336…

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## [If not equal to "string" and equal to number - function node](https://discourse.nodered.org/t/if-not-equal-to-string-and-equal-to-number-function-node/73423)

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**Author:** [@jakobgabriel](https://discourse.nodered.org/u/jakobgabriel)\
**Replies:** 3\
**Last updated:** [9 January 2023 16:43 UTC](https://discourse.nodered.org/t/if-not-equal-to-string-and-equal-to-number-function-node/73423 "2023-01-09T16:43:37Z")

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Hello NodeRED Community, i have a quite bad issue which i can not solve out of the box: Currently i have a function node which has this function that is not working: var valueSensorMode = msg.payload.valueSensorMode v…

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## [\[New Node\] @eswarpr/node-red-modn-counter](https://discourse.nodered.org/t/new-node-eswarpr-node-red-modn-counter/73416)

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**Author:** [@eswarpr](https://discourse.nodered.org/u/eswarpr)\
**Replies:** 0\
**Last updated:** [9 January 2023 14:57 UTC](https://discourse.nodered.org/t/new-node-eswarpr-node-red-modn-counter/73416 "2023-01-09T14:57:55Z")

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A node inspired by mod-N/divide-by-N counters like SN74LS90/92 logic ICs. I needed this, as I am building some 555 timer based experiments, and I do not have any hardware counters yet. Thought I will simulate it in node…

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## [Resetting an input from MQTT](https://discourse.nodered.org/t/resetting-an-input-from-mqtt/73231)

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**Author:** [@JHScen](https://discourse.nodered.org/u/JHScen)\
**Replies:** 12\
**Last updated:** [9 January 2023 15:11 UTC](https://discourse.nodered.org/t/resetting-an-input-from-mqtt/73231 "2023-01-09T15:11:58Z")

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Hi - thanks in advance if anyone has any ideas.. I am using MQTT to pull some data into node red. The data is a count. Adding and subtracting whenever necessary. Sometimes just adding or subtracting 1, other times addin…

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## [How to add double quotes to msg.payload](https://discourse.nodered.org/t/how-to-add-double-quotes-to-msg-payload/73022)

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**Author:** [@Aurgelme](https://discourse.nodered.org/u/Aurgelme)\
**Replies:** 7\
**Last updated:** [9 January 2023 14:35 UTC](https://discourse.nodered.org/t/how-to-add-double-quotes-to-msg-payload/73022 "2023-01-09T14:35:28Z")

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I have a function node that send msg.payload to a terminal program for communication with a 4G modem. How can I put " " so that the outgoing 'meg.payload +text' looks like "value my text " and not just like, value-my-…

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## [Struggling to start Node-red in windows](https://discourse.nodered.org/t/struggling-to-start-node-red-in-windows/73393)

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**Author:** [@hyena](https://discourse.nodered.org/u/hyena)\
**Replies:** 4\
**Last updated:** [9 January 2023 13:50 UTC](https://discourse.nodered.org/t/struggling-to-start-node-red-in-windows/73393 "2023-01-09T13:50:51Z")

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if i want to open node-red in chrome node-red can't display flow and dashboard i am already reinstall node red, but the problem still occurs

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## [Node-red-node-test-helper does not support multiple upstream output ports?](https://discourse.nodered.org/t/node-red-node-test-helper-does-not-support-multiple-upstream-output-ports/73395)

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**Author:** [@kakyoism](https://discourse.nodered.org/u/kakyoism)\
**Replies:** 4\
**Last updated:** [9 January 2023 10:52 UTC](https://discourse.nodered.org/t/node-red-node-test-helper-does-not-support-multiple-upstream-output-ports/73395 "2023-01-09T10:52:12Z")

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Repro define a node myNode, with multiple output ports at the end of its node.on('input', ...), call node.send(\[msg1, msg2, ...\]); hook this node up with node-red-node-test-helper, like this let flow = \[ { id: 'n1', …

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## [MQTT 3D Printer Management with Node-Red and OctoPrint](https://discourse.nodered.org/t/mqtt-3d-printer-management-with-node-red-and-octoprint/72889)

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**Author:** [@toniii](https://discourse.nodered.org/u/toniii)\
**Replies:** 15\
**Last updated:** [9 January 2023 10:51 UTC](https://discourse.nodered.org/t/mqtt-3d-printer-management-with-node-red-and-octoprint/72889 "2023-01-09T10:51:48Z")

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Hello, does anyone know how @nicedevil did the dashboard in this thread (thread link here) using MQTT with 3D printer data, controls and uploading of STL from the dashboard to the 3D printer to start printing?

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## [Manual Node Install Dietpi](https://discourse.nodered.org/t/manual-node-install-dietpi/72682)

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**Author:** [@Ianszh](https://discourse.nodered.org/u/Ianszh)\
**Replies:** 16\
**Last updated:** [9 January 2023 10:28 UTC](https://discourse.nodered.org/t/manual-node-install-dietpi/72682 "2023-01-09T10:28:47Z")

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Hello, I tried to manually install npm install --global node-red-contrib-blynk-iot in the /mnt/dietpi\_userdata/node-red folder as the node is still in beta and there is no easy install version. After a reboot and check…

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## [Failed to start server:](https://discourse.nodered.org/t/failed-to-start-server/73373)

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**Author:** [@CESLBM](https://discourse.nodered.org/u/CESLBM)\
**Replies:** 5\
**Last updated:** [9 January 2023 10:19 UTC](https://discourse.nodered.org/t/failed-to-start-server/73373 "2023-01-09T10:19:14Z")

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Hello, I am having this problem with node red after not using it for a longtime, how can I fix it? I am grateful that you answer my question!! Welcome to Node-RED 8 Jan 16:43:30 - \[info\] Node-RED version: v3.0.2 8 Jan …

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## [Problem with dynamic MQTT subscription: receiving messages from another topic!](https://discourse.nodered.org/t/problem-with-dynamic-mqtt-subscription-receiving-messages-from-another-topic/73301)

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**Author:** [@SuperNinja](https://discourse.nodered.org/u/SuperNinja)\
**Replies:** 22\
**Last updated:** [9 January 2023 10:18 UTC](https://discourse.nodered.org/t/problem-with-dynamic-mqtt-subscription-receiving-messages-from-another-topic/73301 "2023-01-09T10:18:40Z")

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\[{"id":"c60b2dd0aed70159","type":"mqtt out","z":"fec3a58f1cc8836e","name":"","topic":"RGL/221600001/up","qos":"1","retain":"","respTopic":"","contentType":"","userProps":"","correl":"","expiry":"","broker":"846ddbe9b23…

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## [How to use variables entered in editor inside httpadmin function](https://discourse.nodered.org/t/how-to-use-variables-entered-in-editor-inside-httpadmin-function/73194)

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**Author:** [@syedhannan](https://discourse.nodered.org/u/syedhannan)\
**Replies:** 6\
**Last updated:** [9 January 2023 09:39 UTC](https://discourse.nodered.org/t/how-to-use-variables-entered-in-editor-inside-httpadmin-function/73194 "2023-01-09T09:39:45Z")

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I am trying to display a list of files from FTP server after successful authentication using basic-ftp package. I want to use the variables entered in the editor inside the httpadmin function which makes a ftp call in…

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## [Node Red socketcan output frame received problem](https://discourse.nodered.org/t/node-red-socketcan-output-frame-received-problem/73297)

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**Author:** [@David321](https://discourse.nodered.org/u/David321)\
**Replies:** 5\
**Last updated:** [9 January 2023 08:51 UTC](https://discourse.nodered.org/t/node-red-socketcan-output-frame-received-problem/73297 "2023-01-09T08:51:41Z")

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Hello, I am working on a node red project that uses sockectcan out. I have a problem when receiving a frame. I receive a data frame containing 2 separate bytes, example "0x1004". When I receive it, I get 0x104, which …

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## [Why doesn't a flow work and another does, being the same?](https://discourse.nodered.org/t/why-doesnt-a-flow-work-and-another-does-being-the-same/72645)

<div class="topic-metadata">

**Author:** [@Phrana](https://discourse.nodered.org/u/Phrana)\
**Replies:** 10\
**Last updated:** [9 January 2023 08:48 UTC](https://discourse.nodered.org/t/why-doesnt-a-flow-work-and-another-does-being-the-same/72645 "2023-01-09T08:48:36Z")

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Hello, I have a flow that I have copied (changing the entities) and although the zones are the same, it does not work in one. I thought that the switch or the presence sensor would be bad, but I have verified that they …

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## [Email error "Error: Invalid HELO. response=501 5.5.4 Invalid domain name"](https://discourse.nodered.org/t/email-error-error-invalid-helo-response-501-5-5-4-invalid-domain-name/73334)

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**Author:** [@ianh33](https://discourse.nodered.org/u/ianh33)\
**Replies:** 14\
**Last updated:** [9 January 2023 07:50 UTC](https://discourse.nodered.org/t/email-error-error-invalid-helo-response-501-5-5-4-invalid-domain-name/73334 "2023-01-09T07:50:24Z")

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Node red v3.0.2 enabled via PM2 on a Mac Mini running OSX Monterey I have installed node-red-node-email (v1.18.4). My email node is configured as follows: To: myemail@me.com Server: smtp.office365.com Port: 5887 …

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## [Graphing temp and humidity from MariaDB](https://discourse.nodered.org/t/graphing-temp-and-humidity-from-mariadb/72402)

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**Author:** [@HobbyFarmer](https://discourse.nodered.org/u/HobbyFarmer)\
**Replies:** 2\
**Last updated:** [9 January 2023 05:32 UTC](https://discourse.nodered.org/t/graphing-temp-and-humidity-from-mariadb/72402 "2023-01-09T05:32:25Z")

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As some of my other posts mentioned I am stepping my way through a smart home build. Currently I have Arduinos sending temp and humidity to MariaDB on my Pi. I am pulling it back into NR and graphing it. However I would …

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## [MQTT-in node produces undefined](https://discourse.nodered.org/t/mqtt-in-node-produces-undefined/73381)

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**Author:** [@Vilnis\_R](https://discourse.nodered.org/u/Vilnis_R)\
**Replies:** 4\
**Last updated:** [8 January 2023 20:25 UTC](https://discourse.nodered.org/t/mqtt-in-node-produces-undefined/73381 "2023-01-08T20:25:34Z")

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Hi there! I came across the weird behavior of mqqt node. I made new espboard that publishes to mqtt and made new flow with mqqt-in node. This node in debug node shows "undefined". I tried various scenarios and got the s…

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## [Ask for help with debug in node red](https://discourse.nodered.org/t/ask-for-help-with-debug-in-node-red/73324)

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**Author:** [@issambfs1](https://discourse.nodered.org/u/issambfs1)\
**Replies:** 2\
**Last updated:** [8 January 2023 20:20 UTC](https://discourse.nodered.org/t/ask-for-help-with-debug-in-node-red/73324 "2023-01-08T20:20:10Z")

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hi evryone can anyone help me with this : i wana simulate code can control a system {pump-low start and stop by switch after pump-low start the pump-décolorant and pump-scalaut starting after 2 sec also pump-high start …

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## [Trying to hide URL parameters from http GET by reposting using http POST](https://discourse.nodered.org/t/trying-to-hide-url-parameters-from-http-get-by-reposting-using-http-post/73384)

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**Author:** [@knowledgeshark](https://discourse.nodered.org/u/knowledgeshark)\
**Replies:** 0\
**Last updated:** [8 January 2023 20:01 UTC](https://discourse.nodered.org/t/trying-to-hide-url-parameters-from-http-get-by-reposting-using-http-post/73384 "2023-01-08T20:01:58Z")

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I've been using the http GET where parameters are passed, and then I create a custom web page (after grabbing information from the database assuming the username and password are valid). The issue I've had is that the U…

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## [MQTT info on request](https://discourse.nodered.org/t/mqtt-info-on-request/73349)

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**Author:** [@edstobi](https://discourse.nodered.org/u/edstobi)\
**Replies:** 7\
**Last updated:** [8 January 2023 19:44 UTC](https://discourse.nodered.org/t/mqtt-info-on-request/73349 "2023-01-08T19:44:07Z")

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hello I would like to read out a mqtt topic and all the paths under it, in that point of function when is needed. i would like to display an on demand status from the mqtt topic Unfortunately, mqtt only reads out some…

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## [@kevingodell/node-red-pipe2jpeg](https://discourse.nodered.org/t/kevingodell-node-red-pipe2jpeg/73378)

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**Author:** [@kevinGodell](https://discourse.nodered.org/u/kevinGodell)\
**Replies:** 3\
**Last updated:** [8 January 2023 19:29 UTC](https://discourse.nodered.org/t/kevingodell-node-red-pipe2jpeg/73378 "2023-01-08T19:29:21Z")

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The old unpublished node-red-contrib-pipe2jpeg has been re-built as @kevingodell/node-red-pipe2jpeg. This node is similar to @BartButenaers' node-red-contrib-multipart-stream-encoder (node) - Node-RED, but serves a diff…

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## [Mosquitto.conf won't save edits](https://discourse.nodered.org/t/mosquitto-conf-wont-save-edits/73364)

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**Author:** [@rbmgf7](https://discourse.nodered.org/u/rbmgf7)\
**Replies:** 7\
**Last updated:** [8 January 2023 17:18 UTC](https://discourse.nodered.org/t/mosquitto-conf-wont-save-edits/73364 "2023-01-08T17:18:22Z")

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Trying to edit the Listener and allow\_anonymous but the file won't let me save the changes. All the tutorials I've read and watched don't have this problem. What am I missing? Thanks.

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## [Logic controlling ventilation](https://discourse.nodered.org/t/logic-controlling-ventilation/73355)

<div class="topic-metadata">

**Author:** [@FSHelgeland](https://discourse.nodered.org/u/FSHelgeland)\
**Replies:** 3\
**Last updated:** [8 January 2023 15:24 UTC](https://discourse.nodered.org/t/logic-controlling-ventilation/73355 "2023-01-08T15:24:23Z")

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So I need to build a logic controlling my ventilation system. I got three sensors which give me values for co2, moist bathroom1 and moist bathroom2. If one of them get over a certain value they have to trigger the boost …

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## [Node Red Websocket Error](https://discourse.nodered.org/t/node-red-websocket-error/73360)

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**Author:** [@Phoenix](https://discourse.nodered.org/u/Phoenix)\
**Replies:** 6\
**Last updated:** [8 January 2023 10:43 UTC](https://discourse.nodered.org/t/node-red-websocket-error/73360 "2023-01-08T10:43:46Z")

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First, Happy new Year. Hello, I have some problems with node red and don't really find the source of the problem. 8 Jan 09:43:46 - \[info\] \[remote-access:NR\_Dash\] starting ssh process 8 Jan 09:44:15 - \[red\] Uncaught Exc…

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## [Reacting to central config node change](https://discourse.nodered.org/t/reacting-to-central-config-node-change/73036)

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**Author:** [@Vahdettin](https://discourse.nodered.org/u/Vahdettin)\
**Replies:** 8\
**Last updated:** [8 January 2023 00:57 UTC](https://discourse.nodered.org/t/reacting-to-central-config-node-change/73036 "2023-01-08T00:57:55Z")

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Can anybody explain or clarify how to create a node that uses a central config node for a global config? What I'm trying do is this: Open regular node. Open parent config node. Update config. Close config node. Apply …

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## [Input locked for user - in Runtime](https://discourse.nodered.org/t/input-locked-for-user-in-runtime/73139)

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**Author:** [@allacmc](https://discourse.nodered.org/u/allacmc)\
**Replies:** 18\
**Last updated:** [7 January 2023 23:56 UTC](https://discourse.nodered.org/t/input-locked-for-user-in-runtime/73139 "2023-01-07T23:56:20Z")

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Hello friends, I would like to know if there is a certain property in dasboard\_ui controls. The following is: I would like some input type widgets like: text/sliders/dropdown and other input. I would like to disable …

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## [Some questions about state mirroring in Flexdash](https://discourse.nodered.org/t/some-questions-about-state-mirroring-in-flexdash/73318)

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**Author:** [@BartButenaers](https://discourse.nodered.org/u/BartButenaers)\
**Replies:** 3\
**Last updated:** [7 January 2023 22:11 UTC](https://discourse.nodered.org/t/some-questions-about-state-mirroring-in-flexdash/73318 "2023-01-07T22:11:26Z")

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Hi folks, It is a real shame, but I still didn't find time to do UI node development in Flexdash. But should get started with it soon... @tve has written a nice article about state mirroring in Flexdash. This is very…

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## [Can't connect to my Home Assistant with node-red-contrib-home-assistant-websocket](https://discourse.nodered.org/t/cant-connect-to-my-home-assistant-with-node-red-contrib-home-assistant-websocket/73317)

<div class="topic-metadata">

**Author:** [@tpbillund](https://discourse.nodered.org/u/tpbillund)\
**Replies:** 6\
**Last updated:** [7 January 2023 18:19 UTC](https://discourse.nodered.org/t/cant-connect-to-my-home-assistant-with-node-red-contrib-home-assistant-websocket/73317 "2023-01-07T18:19:36Z")

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Hi I have a HA running on 172.25.100.199:58123 and then I have a Node-RED running on 172.25.100.199:51880 - both on docker. I have installed the node-red-contrib-home-assistant-websocket node inside NodeRED and have in…

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## [Could Node-RED support applications?](https://discourse.nodered.org/t/could-node-red-support-applications/73351)

<div class="topic-metadata">

**Author:** [@tve](https://discourse.nodered.org/u/tve)\
**Replies:** 1\
**Last updated:** [7 January 2023 22:04 UTC](https://discourse.nodered.org/t/could-node-red-support-applications/73351 "2023-01-07T22:04:58Z")

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As I'm rebuilding my Node-RED flows using FlexDash I'm wondering whether there isn't a way to modularize stuff into "applications". Some of what I'm doing is relatively generic, so I could publish it for others to use & …

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## [S7 in node tries connecting](https://discourse.nodered.org/t/s7-in-node-tries-connecting/73341)

<div class="topic-metadata">

**Author:** [@dzikuss](https://discourse.nodered.org/u/dzikuss)\
**Replies:** 8\
**Last updated:** [7 January 2023 21:59 UTC](https://discourse.nodered.org/t/s7-in-node-tries-connecting/73341 "2023-01-07T21:59:39Z")

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Hi! I'm newbie to Node-Red but anyway, here is my question: Why s7 in node keeps connecting although node is disabled.. In Powershell every ~10seconds is "Error: Timeout to connecting to the transport".. P.S. So far d…

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