# Latest

**URL:** https://discourse.nodered.org/latest.md?page=467

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

**Page:** 468

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## [Connecting Allen Bradely PLC with Node-Red](https://discourse.nodered.org/t/connecting-allen-bradely-plc-with-node-red/70166)

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**Author:** [@prathameshpitale](https://discourse.nodered.org/u/prathameshpitale)\
**Replies:** 1\
**Last updated:** [6 November 2022 13:12 UTC](https://discourse.nodered.org/t/connecting-allen-bradely-plc-with-node-red/70166 "2022-11-06T13:12:52Z")

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I am new to PLC & NodeRed world. I understand basics of communication with PLC. I am studying Internet to connect & Acquire Data from AB Micrologix 1200 PLC. Micrologix 1200 Uses DF1 Protocol Over RS232(Serial Port). T…

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## [Deconflicting Delay Node for PIR and Ikea Remote](https://discourse.nodered.org/t/deconflicting-delay-node-for-pir-and-ikea-remote/70157)

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**Author:** [@Blacke1991](https://discourse.nodered.org/u/Blacke1991)\
**Replies:** 6\
**Last updated:** [6 November 2022 12:35 UTC](https://discourse.nodered.org/t/deconflicting-delay-node-for-pir-and-ikea-remote/70157 "2022-11-06T12:35:24Z")

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Hello All, Complete Newbee here (been running Node Red for about 3 days). Running NR 2.2.2, using Raspberry Pie, Zigbee Stick with Zigbee2MQTT. Managed to import the devices etc and make a basic flow allowing a hue PIR …

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## [ZWaveError: Failed to open the serial port: Error: No such file or directory, cannot open /dev/ttyACM0 (ZW0100)](https://discourse.nodered.org/t/zwaveerror-failed-to-open-the-serial-port-error-no-such-file-or-directory-cannot-open-dev-ttyacm0-zw0100/70154)

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**Author:** [@Heclim](https://discourse.nodered.org/u/Heclim)\
**Replies:** 2\
**Last updated:** [6 November 2022 11:04 UTC](https://discourse.nodered.org/t/zwaveerror-failed-to-open-the-serial-port-error-no-such-file-or-directory-cannot-open-dev-ttyacm0-zw0100/70154 "2022-11-06T11:04:49Z")

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Hi, I have this message that appears when deploying the zwave controller. installation in docker for node red, version 8 for zwave js, on a raspberry 3b, with an aeotec stick. can you help me to solve this problem. reg…

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## [On clicking a button it must navigate from one tab to another](https://discourse.nodered.org/t/on-clicking-a-button-it-must-navigate-from-one-tab-to-another/70150)

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**Author:** [@ashritha.achu2001](https://discourse.nodered.org/u/ashritha.achu2001)\
**Replies:** 11\
**Last updated:** [6 November 2022 10:45 UTC](https://discourse.nodered.org/t/on-clicking-a-button-it-must-navigate-from-one-tab-to-another/70150 "2022-11-06T10:45:08Z")

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The above is my tab format.I want to navigate to bin status tab on clicking view status button .I've tried multiple methods but none worked for me.Can you please guide on how could i do it?

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## [How to correctly set href path for CSS files in node-red(inside html file)?](https://discourse.nodered.org/t/how-to-correctly-set-href-path-for-css-files-in-node-red-inside-html-file/70114)

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**Author:** [@RavinderSingh13](https://discourse.nodered.org/u/RavinderSingh13)\
**Replies:** 5\
**Last updated:** [6 November 2022 09:47 UTC](https://discourse.nodered.org/t/how-to-correctly-set-href-path-for-css-files-in-node-red-inside-html-file/70114 "2022-11-06T09:47:51Z")

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Hello Node-red experts, Greetings!! I have directory named /root/chatBot/static/css where my css files are residing. After researching from forum I got to know I need to change settings.js file in node-red server with…

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## [Set stoptimer value with text input node&environment variables](https://discourse.nodered.org/t/set-stoptimer-value-with-text-input-node-environment-variables/69849)

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**Author:** [@DrS1981](https://discourse.nodered.org/u/DrS1981)\
**Replies:** 10\
**Last updated:** [6 November 2022 02:08 UTC](https://discourse.nodered.org/t/set-stoptimer-value-with-text-input-node-environment-variables/69849 "2022-11-06T02:08:01Z")

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Hello, can someone give me a simple example for the following problem i want to set the timer value from the stoptimer varidelay with an text input node and an environment variable i tried something but i do not under…

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## [Send video from Home Assistant's Media folder to phone](https://discourse.nodered.org/t/send-video-from-home-assistants-media-folder-to-phone/70139)

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**Author:** [@guy0nabuffalo](https://discourse.nodered.org/u/guy0nabuffalo)\
**Replies:** 0\
**Last updated:** [6 November 2022 00:01 UTC](https://discourse.nodered.org/t/send-video-from-home-assistants-media-folder-to-phone/70139 "2022-11-06T00:01:52Z")

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I've also asked this question in Home Assistant community forums. Since this is Node Red based I figured here might increase my chances of finding resolution. I'm in the process of trying to save all of my photos and vi…

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## [Managing Tabs with multiple dashboard page/tab instance](https://discourse.nodered.org/t/managing-tabs-with-multiple-dashboard-page-tab-instance/70132)

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**Author:** [@tree-frog](https://discourse.nodered.org/u/tree-frog)\
**Replies:** 0\
**Last updated:** [5 November 2022 20:49 UTC](https://discourse.nodered.org/t/managing-tabs-with-multiple-dashboard-page-tab-instance/70132 "2022-11-05T20:49:58Z")

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I have an application where I have need for multiple user instances to view a main tab for monitoring. I have an "Alarms" tab which shows a list of managed alarms in an array. I am managing 2 socketid(s) with a functio…

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## [Where is the node-red log (running from command line on ubuntu)](https://discourse.nodered.org/t/where-is-the-node-red-log-running-from-command-line-on-ubuntu/70134)

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**Author:** [@nodeBoy816](https://discourse.nodered.org/u/nodeBoy816)\
**Replies:** 2\
**Last updated:** [5 November 2022 22:41 UTC](https://discourse.nodered.org/t/where-is-the-node-red-log-running-from-command-line-on-ubuntu/70134 "2022-11-05T22:41:09Z")

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I'm going through Securing Node-RED (Securing Node-RED : Node-RED ) and the article references the settings file page which states that "If you are not sure which settings file Node-RED is using, you should check the log…

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## [Difference between Start and Restart Flows in Deploy dropdown](https://discourse.nodered.org/t/difference-between-start-and-restart-flows-in-deploy-dropdown/70121)

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**Author:** [@Colin](https://discourse.nodered.org/u/Colin)\
**Replies:** 3\
**Last updated:** [5 November 2022 16:44 UTC](https://discourse.nodered.org/t/difference-between-start-and-restart-flows-in-deploy-dropdown/70121 "2022-11-05T16:44:46Z")

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Having enabled runtimeState in settings.js runtimeState: { /\*\* enable or disable flows/state endpoint. Must be set to \`false\` to disable \*/ enabled: true, /\*\* show or hide runtime stop/start …

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## [Lack of a proper padding in a binary conversion](https://discourse.nodered.org/t/lack-of-a-proper-padding-in-a-binary-conversion/70124)

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**Author:** [@lobster87](https://discourse.nodered.org/u/lobster87)\
**Replies:** 2\
**Last updated:** [5 November 2022 16:16 UTC](https://discourse.nodered.org/t/lack-of-a-proper-padding-in-a-binary-conversion/70124 "2022-11-05T16:16:04Z")

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Hi, I try to convert hex to binary using this code: var pattern='5c48a02b8c00'; var pattern\_bits =""; msg.payload=parseInt("0x"+pattern).toString(2).padStart(4, '0'); return msg; It returns the string:1011100010010001…

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## [Mdbus tcp\\rtu gateway](https://discourse.nodered.org/t/mdbus-tcp-rtu-gateway/70003)

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**Author:** [@BLND](https://discourse.nodered.org/u/BLND)\
**Replies:** 7\
**Last updated:** [5 November 2022 10:22 UTC](https://discourse.nodered.org/t/mdbus-tcp-rtu-gateway/70003 "2022-11-05T10:22:35Z")

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I have 2 modbus rtu devices connecting to node red through one modbus tcp\\rtu gateway, i try to control both of them at the same time but i can not. can someone help me

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## [Best place to keep certs ubuntu - fresh install of node red v3](https://discourse.nodered.org/t/best-place-to-keep-certs-ubuntu-fresh-install-of-node-red-v3/70105)

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**Author:** [@nodeBoy816](https://discourse.nodered.org/u/nodeBoy816)\
**Replies:** 8\
**Last updated:** [5 November 2022 11:25 UTC](https://discourse.nodered.org/t/best-place-to-keep-certs-ubuntu-fresh-install-of-node-red-v3/70105 "2022-11-05T11:25:32Z")

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Hello all! I'm in the process of installing node-red and have run the script found here: Running on Raspberry Pi : Node-RED The next step is Securing Node-Red (Securing Node-RED : Node-RED ). In order to do so, I starte…

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## [Cannot install nodes via palette manager](https://discourse.nodered.org/t/cannot-install-nodes-via-palette-manager/70104)

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**Author:** [@877](https://discourse.nodered.org/u/877)\
**Replies:** 6\
**Last updated:** [5 November 2022 09:20 UTC](https://discourse.nodered.org/t/cannot-install-nodes-via-palette-manager/70104 "2022-11-05T09:20:45Z")

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Lately I am not able to install any new nodes via palette manager, see below error. I was trying to install node-red-contrib-blynk-iot I completely rebuilt my Pi4 installation, and restored my node red files (running i…

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## [Traefik dashboard ui to host address](https://discourse.nodered.org/t/traefik-dashboard-ui-to-host-address/70117)

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**Author:** [@Gibbz](https://discourse.nodered.org/u/Gibbz)\
**Replies:** 0\
**Last updated:** [5 November 2022 09:01 UTC](https://discourse.nodered.org/t/traefik-dashboard-ui-to-host-address/70117 "2022-11-05T09:01:18Z")

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I want to use traefik to route my host address (pi.local and 192.168.1.3) to the nodered dashboard (pi.local:1883/ui and 192.168.1.3:1883/ui) Im new to traefik, so trying to set this all up in my config.yml (below). Not…

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## [Grouping of result sets, postgres or jsonata?](https://discourse.nodered.org/t/grouping-of-result-sets-postgres-or-jsonata/70115)

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**Author:** [@flipzz](https://discourse.nodered.org/u/flipzz)\
**Replies:** 0\
**Last updated:** [5 November 2022 08:55 UTC](https://discourse.nodered.org/t/grouping-of-result-sets-postgres-or-jsonata/70115 "2022-11-05T08:55:06Z")

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Hi, I have a question on json, jsonata and postgres. I am fetching result sets from postgresql. The data in Postgres is stored in tables where I do joins (e.g. one table called group, one with people jointed through a …

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## [Flow Optimization: Confused about how a flow is handled on the stack](https://discourse.nodered.org/t/flow-optimization-confused-about-how-a-flow-is-handled-on-the-stack/69965)

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**Author:** [@PLCMercenary](https://discourse.nodered.org/u/PLCMercenary)\
**Replies:** 4\
**Last updated:** [4 November 2022 23:38 UTC](https://discourse.nodered.org/t/flow-optimization-confused-about-how-a-flow-is-handled-on-the-stack/69965 "2022-11-04T23:38:40Z")

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I am doing some test runs just to get an understanding of flow execution times and how flows can be optimized in different ways for tighter execution and to give customers a realistic idea of NR "deterministic" abilities…

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## [Sending JSON data to a table](https://discourse.nodered.org/t/sending-json-data-to-a-table/69627)

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**Author:** [@Timmer2022](https://discourse.nodered.org/u/Timmer2022)\
**Replies:** 8\
**Last updated:** [4 November 2022 23:36 UTC](https://discourse.nodered.org/t/sending-json-data-to-a-table/69627 "2022-11-04T23:36:58Z")

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Hello folks. I am just starting out with Node-Red and need some help.. here is what I have so far: A timestamp inject connected to an http in node which gets a URL API from my baserow site. (the "Return" dropdown is s…

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## [Problem of using Raspberry Pi](https://discourse.nodered.org/t/problem-of-using-raspberry-pi/70089)

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**Author:** [@zmarcoz1](https://discourse.nodered.org/u/zmarcoz1)\
**Replies:** 3\
**Last updated:** [4 November 2022 23:25 UTC](https://discourse.nodered.org/t/problem-of-using-raspberry-pi/70089 "2022-11-04T23:25:22Z")

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I am new to both Raspberry and NodeRed. My goal is to connect the Raspberry to a machine via a network switch and then use the Raspberry to pass the data to internet via its wifi. Before I started any connection, I am …

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## [What are the differences between the output of exec-queue node and exec-node](https://discourse.nodered.org/t/what-are-the-differences-between-the-output-of-exec-queue-node-and-exec-node/70097)

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**Author:** [@Wilay](https://discourse.nodered.org/u/Wilay)\
**Replies:** 1\
**Last updated:** [4 November 2022 22:10 UTC](https://discourse.nodered.org/t/what-are-the-differences-between-the-output-of-exec-queue-node-and-exec-node/70097 "2022-11-04T22:10:41Z")

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Basically, I'm trying to get the ffmpeg image to work with exec-queue instead of exec. With the exec node, it works perfect, as the output is a Buffer that I can connect to a Base64 node to show in UIBuilder. When I try…

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## [Get data from a website using the Http request node](https://discourse.nodered.org/t/get-data-from-a-website-using-the-http-request-node/70086)

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**Author:** [@Engi](https://discourse.nodered.org/u/Engi)\
**Replies:** 4\
**Last updated:** [4 November 2022 18:18 UTC](https://discourse.nodered.org/t/get-data-from-a-website-using-the-http-request-node/70086 "2022-11-04T18:18:55Z")

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Hi, I am trying to pull data from a website using the http request node and a HTML node like they do in this example Simple GET request : Node-RED, However my data is in a jstcache variable instead of a class as shown in…

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## [How to populate dashboard dropdown button dynamically](https://discourse.nodered.org/t/how-to-populate-dashboard-dropdown-button-dynamically/5594)

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**Author:** [@aargollo](https://discourse.nodered.org/u/aargollo)\
**Replies:** 23\
**Last updated:** [4 November 2022 17:42 UTC](https://discourse.nodered.org/t/how-to-populate-dashboard-dropdown-button-dynamically/5594 "2022-11-04T17:42:58Z")

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Hi Guys, Im trying to populate dynamically the dashboard dropdown button node from previous function-node. I can't find any documentation or examples that can explain how to do it! Can somebody help me ? Best Regards, …

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## [\[ANNOUNCE\] node-red-contrib-ui-multistate-switch: 1.2.0](https://discourse.nodered.org/t/announce-node-red-contrib-ui-multistate-switch-1-2-0/50464)

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**Author:** [@BartButenaers](https://discourse.nodered.org/u/BartButenaers)\
**Replies:** 38\
**Last updated:** [4 November 2022 17:40 UTC](https://discourse.nodered.org/t/announce-node-red-contrib-ui-multistate-switch-1-2-0/50464 "2022-11-04T17:40:11Z")

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Hi folks, After a delay of some months (due to circumstances), @hotNipi and I proudly present the first 1.2.0 beta of the node-red-contrib-ui-multistate-switch node :partying\_face: :champagne: :clinking\_glasses: Since …

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## [Upgrade node-red on raspberry pi](https://discourse.nodered.org/t/upgrade-node-red-on-raspberry-pi/69846)

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**Author:** [@henrik1](https://discourse.nodered.org/u/henrik1)\
**Replies:** 65\
**Last updated:** [4 November 2022 17:30 UTC](https://discourse.nodered.org/t/upgrade-node-red-on-raspberry-pi/69846 "2022-11-04T17:30:14Z")

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Hi, Some time ago I installed Node Red on my Raspberry Pi Zero. I think it was Node Red version 1.2.9 or something like that. I have used it for "sandbox'ing" to test different things with ZigBee/MQTT/Tasmota/... and …

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## [How extract time for travel OR take a screenshot of GOOGLE MAPS?](https://discourse.nodered.org/t/how-extract-time-for-travel-or-take-a-screenshot-of-google-maps/70090)

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**Author:** [@lumanga](https://discourse.nodered.org/u/lumanga)\
**Replies:** 1\
**Last updated:** [4 November 2022 16:50 UTC](https://discourse.nodered.org/t/how-extract-time-for-travel-or-take-a-screenshot-of-google-maps/70090 "2022-11-04T16:50:54Z")

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Hi all, I would like to Extract the TIMEs that google maps give for my travel (number 23minute and 26 minute in the image in attach) OR take a "screenshot" of the Goggle Maps travel and save as Image. I have rasp…

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## [Multiple lines in graph from JSONata](https://discourse.nodered.org/t/multiple-lines-in-graph-from-jsonata/69944)

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**Author:** [@warnert](https://discourse.nodered.org/u/warnert)\
**Replies:** 6\
**Last updated:** [4 November 2022 13:45 UTC](https://discourse.nodered.org/t/multiple-lines-in-graph-from-jsonata/69944 "2022-11-04T13:45:33Z")

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I try to get historical data in a graph. I have 3 values, huidig (current), max and min. All are temperatures. I get the data from a MariaDB and feed it through a JSONata node. I have the following script in a change no…

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## [Javascript clearInterval in if statement](https://discourse.nodered.org/t/javascript-clearinterval-in-if-statement/70055)

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**Author:** [@Mick](https://discourse.nodered.org/u/Mick)\
**Replies:** 6\
**Last updated:** [4 November 2022 13:43 UTC](https://discourse.nodered.org/t/javascript-clearinterval-in-if-statement/70055 "2022-11-04T13:43:53Z")

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I have a function where I want to use setInterval to start a timer and using if statements, do specific commands. I noticed that multiple timer intervals are being created. From what I can tell the new timers are st…

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## [Dashboard suddenly asks for password (Hacked Node-RED servers)](https://discourse.nodered.org/t/dashboard-suddenly-asks-for-password-hacked-node-red-servers/69083)

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**Author:** [@jan.ove](https://discourse.nodered.org/u/jan.ove)\
**Replies:** 127\
**Last updated:** [4 November 2022 13:43 UTC](https://discourse.nodered.org/t/dashboard-suddenly-asks-for-password-hacked-node-red-servers/69083 "2022-11-04T13:43:06Z")

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Hello, and thanks for your reply in advance. For a few years I have used node-red for home control, simple setup, control of heat pumps, monitoring of temperatures etc., I am far from an expert on this, but I got it to …

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## [Using Tasmota MQTT Switch toggle to control lighing](https://discourse.nodered.org/t/using-tasmota-mqtt-switch-toggle-to-control-lighing/70084)

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**Author:** [@cpyandy](https://discourse.nodered.org/u/cpyandy)\
**Replies:** 2\
**Last updated:** [4 November 2022 12:05 UTC](https://discourse.nodered.org/t/using-tasmota-mqtt-switch-toggle-to-control-lighing/70084 "2022-11-04T12:05:23Z")

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Hi All, Working on a small project using Tasmota on the Wemos D1 Mini, I am connecting one of the input to a momentary switch and I have de-attached switches to relay using setoption 114. I am getting this mqtt message…

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## [Reading multiple variables from PLC, how to read single variables?](https://discourse.nodered.org/t/reading-multiple-variables-from-plc-how-to-read-single-variables/70036)

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**Author:** [@bart92](https://discourse.nodered.org/u/bart92)\
**Replies:** 4\
**Last updated:** [4 November 2022 11:52 UTC](https://discourse.nodered.org/t/reading-multiple-variables-from-plc-how-to-read-single-variables/70036 "2022-11-04T11:52:19Z")

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Hello, I'm new to node-red. I have no idea how to go about solving my issue. I have added a PLC in which I have defined several variables. Communication works but It returns msg.payload, which contains all variable names…

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