# Latest

**URL:** https://discourse.nodered.org/latest.md?page=257

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

**Page:** 258

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## [How to draw linear chart of a number received 'periodically'?](https://discourse.nodered.org/t/how-to-draw-linear-chart-of-a-number-received-periodically/84050)

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**Author:** [@realtebo](https://discourse.nodered.org/u/realtebo)\
**Replies:** 1\
**Last updated:** [27 December 2023 11:00 UTC](https://discourse.nodered.org/t/how-to-draw-linear-chart-of-a-number-received-periodically/84050 "2023-12-27T11:00:07Z")

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I am receiving this data from a Shelly H&T plus via an RPC update (filterd to keep only method="NotifyFullStatus") so I would like to create a chart of the value msg.payload.params.temperature:0.tc this is always n…

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## [Running Tasmota zbbridge - can I address it directly from Node-RED?](https://discourse.nodered.org/t/running-tasmota-zbbridge-can-i-address-it-directly-from-node-red/84027)

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**Author:** [@hazymat](https://discourse.nodered.org/u/hazymat)\
**Replies:** 0\
**Last updated:** [25 December 2023 22:55 UTC](https://discourse.nodered.org/t/running-tasmota-zbbridge-can-i-address-it-directly-from-node-red/84027 "2023-12-25T22:55:34Z")

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Sorry for the possibly stupid post title. I have a Sonoff Zigbee Bridge with Tasmota installed, and it's set to Zigbee2MQTT mode. I have installed Zigbee2MQTT as an add-on in Home Assistant, but although I think it's co…

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## [Node-red-systeminformation](https://discourse.nodered.org/t/node-red-systeminformation/84024)

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**Author:** [@ralphwetzel](https://discourse.nodered.org/u/ralphwetzel)\
**Replies:** 4\
**Last updated:** [26 December 2023 20:51 UTC](https://discourse.nodered.org/t/node-red-systeminformation/84024 "2023-12-26T20:51:13Z")

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Recently I started the journey to move a project from Python to Node-RED and had the demand for a node to get some system related information. Looking around a bit, I found systeminformation.io, a System Information Libr…

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## [Sort ui\_table by timestamp](https://discourse.nodered.org/t/sort-ui-table-by-timestamp/84041)

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**Author:** [@druckstick.at](https://discourse.nodered.org/u/druckstick.at)\
**Replies:** 2\
**Last updated:** [26 December 2023 19:31 UTC](https://discourse.nodered.org/t/sort-ui-table-by-timestamp/84041 "2023-12-26T19:31:04Z")

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Hello everybody! I use a mysql database and display the data with the ui\_table. This all works great too. Since the new mysql entries are added at the bottom, ui\_table also displays the new values at the bottom. I wo…

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## [mySQL, update 2 cells](https://discourse.nodered.org/t/mysql-update-2-cells/84044)

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**Author:** [@druckstick.at](https://discourse.nodered.org/u/druckstick.at)\
**Replies:** 1\
**Last updated:** [26 December 2023 18:26 UTC](https://discourse.nodered.org/t/mysql-update-2-cells/84044 "2023-12-26T18:26:32Z")

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Hello everybody! I know how to update a cell with the mySQL node: msg.topic = "UPDATE Tabelle1 SET Column1 = '" + msg.payload.value1+ "' WHERE Zeilen\_ID = " + "'" + msg.payload.ID+ "'";; return msg; But how can I…

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## [How to create a dynamic inject-node with dynamic timestamp?](https://discourse.nodered.org/t/how-to-create-a-dynamic-inject-node-with-dynamic-timestamp/84026)

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**Author:** [@Gawan](https://discourse.nodered.org/u/Gawan)\
**Replies:** 2\
**Last updated:** [25 December 2023 22:20 UTC](https://discourse.nodered.org/t/how-to-create-a-dynamic-inject-node-with-dynamic-timestamp/84026 "2023-12-25T22:20:53Z")

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Hi al, I am used to INJECT Nodes and I know how to set a static time for the node to execute. But is there a possibility to set the time to execute the node somehow dynamically ? I do not want to set a time like "06:0…

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## [Bug found in node-red-autolayout-sidebar](https://discourse.nodered.org/t/bug-found-in-node-red-autolayout-sidebar/83991)

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**Author:** [@ProgrammerPaul](https://discourse.nodered.org/u/ProgrammerPaul)\
**Replies:** 6\
**Last updated:** [25 December 2023 21:17 UTC](https://discourse.nodered.org/t/bug-found-in-node-red-autolayout-sidebar/83991 "2023-12-25T21:17:38Z")

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As per the github readme, I'm posting here and mentioning @gregorius and @bartbutenaers. I also want give my heartfelt thanks for creating this plugin, it's hugely valuable to me! I think I found a bug in the node-red-a…

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## [Recurring "The flows on the server have been updated" message](https://discourse.nodered.org/t/recurring-the-flows-on-the-server-have-been-updated-message/13885)

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**Author:** [@nodecentral](https://discourse.nodered.org/u/nodecentral)\
**Replies:** 69\
**Last updated:** [25 December 2023 19:28 UTC](https://discourse.nodered.org/t/recurring-the-flows-on-the-server-have-been-updated-message/13885 "2023-12-25T19:28:35Z")

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Hi For some reason every time I do a browser refresh, I receive the following prompt ? When I choose “Review change" it says there are no conflicts? Any ideas what could be causing this with the refresh, as no c…

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## [Highlighting nodes and groups from the info text box](https://discourse.nodered.org/t/highlighting-nodes-and-groups-from-the-info-text-box/84020)

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**Author:** [@gregorius](https://discourse.nodered.org/u/gregorius)\
**Replies:** 2\
**Last updated:** [25 December 2023 15:31 UTC](https://discourse.nodered.org/t/highlighting-nodes-and-groups-from-the-info-text-box/84020 "2023-12-25T15:31:36Z")

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Hi There! Ever since I began to document how Node-RED works, I have tried to find ways to explain how flows work. For that purpose, I implement wire, node and group highlighting over at FlowHub.org, for example: the ora…

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## [Making a new ui\_slider node](https://discourse.nodered.org/t/making-a-new-ui-slider-node/84019)

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**Author:** [@magnusso](https://discourse.nodered.org/u/magnusso)\
**Replies:** 2\
**Last updated:** [25 December 2023 13:36 UTC](https://discourse.nodered.org/t/making-a-new-ui-slider-node/84019 "2023-12-25T13:36:08Z")

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My apologies if this question has already been answered. What is the recommend way of taking an existing node, in this case slider and start modifying existing code? Specifically, how does one setup the workflow? Where…

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## [Hide all flows other than the ID in the current URL](https://discourse.nodered.org/t/hide-all-flows-other-than-the-id-in-the-current-url/84006)

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**Author:** [@Ahmad44452](https://discourse.nodered.org/u/Ahmad44452)\
**Replies:** 11\
**Last updated:** [25 December 2023 13:17 UTC](https://discourse.nodered.org/t/hide-all-flows-other-than-the-id-in-the-current-url/84006 "2023-12-25T13:17:39Z")

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Hello everyone. I have a requirement of opening only the flow whose ID is specified in the URL while opening Node-RED. After spending some time, I was able to achieve the desired results. I was wondering if I could make …

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## [Alexa & Docker desktop does not respond to my voice after exiting my SSH connection](https://discourse.nodered.org/t/alexa-docker-desktop-does-not-respond-to-my-voice-after-exiting-my-ssh-connection/83984)

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**Author:** [@questuk](https://discourse.nodered.org/u/questuk)\
**Replies:** 5\
**Last updated:** [25 December 2023 07:54 UTC](https://discourse.nodered.org/t/alexa-docker-desktop-does-not-respond-to-my-voice-after-exiting-my-ssh-connection/83984 "2023-12-25T07:54:00Z")

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For this first test only, I am NOT using Docker. I installed NodeRED and alexa-remote2-applestrudel 5.0.48 onto a remote Linux PC. I then SSH into the linux PC from my host linux PC. I then start NodeRED, initialise Ale…

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## [The order of node execution and the relationship between different rule chains](https://discourse.nodered.org/t/the-order-of-node-execution-and-the-relationship-between-different-rule-chains/83947)

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**Author:** [@Yesung](https://discourse.nodered.org/u/Yesung)\
**Replies:** 6\
**Last updated:** [25 December 2023 01:24 UTC](https://discourse.nodered.org/t/the-order-of-node-execution-and-the-relationship-between-different-rule-chains/83947 "2023-12-25T01:24:58Z")

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I would like to ask for advice: (1) As shown in rule 3, if a node introduces two branches, which branch will be executed first? What is the execution order of nodes in different branches? (2) As shown in Rule 1 and Rul…

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## [Limit access to Node-RED via client certificates](https://discourse.nodered.org/t/limit-access-to-node-red-via-client-certificates/83996)

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**Author:** [@BartButenaers](https://discourse.nodered.org/u/BartButenaers)\
**Replies:** 8\
**Last updated:** [24 December 2023 22:33 UTC](https://discourse.nodered.org/t/limit-access-to-node-red-via-client-certificates/83996 "2023-12-24T22:33:11Z")

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Hi folks, I saw tonight an interesting proposal about an extra level of security for Node-RED via internet, by whitelisting a list of ip addresses. Although it is a very interesting article, I don't think I will be abl…

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## [NR backup and restore flows and nodes](https://discourse.nodered.org/t/nr-backup-and-restore-flows-and-nodes/19170)

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**Author:** [@kenkoknz](https://discourse.nodered.org/u/kenkoknz)\
**Replies:** 3\
**Last updated:** [24 December 2023 22:01 UTC](https://discourse.nodered.org/t/nr-backup-and-restore-flows-and-nodes/19170 "2023-12-24T22:01:39Z")

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Hi, I have to clean install Pi Buster and NR on a pi ,following the docs, the installation went smoothly and all is working good. I have done a bacup of all files in .nodered folders. I take it to restore the flows I …

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## [MQTT over Websockets](https://discourse.nodered.org/t/mqtt-over-websockets/83992)

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**Author:** [@FireWizard52](https://discourse.nodered.org/u/FireWizard52)\
**Replies:** 10\
**Last updated:** [24 December 2023 21:55 UTC](https://discourse.nodered.org/t/mqtt-over-websockets/83992 "2023-12-24T21:55:07Z")

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Hello all, I try to retrieve data from the Notification service of the Royal Netherlands Meteorological Institute (KNMI), but I do not have any experience with MQTT over Websockets and so this is quite new for me. Per…

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## [Securing Node-Red](https://discourse.nodered.org/t/securing-node-red/3561)

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**Author:** [@jbudd](https://discourse.nodered.org/u/jbudd)\
**Replies:** 33\
**Last updated:** [24 December 2023 19:50 UTC](https://discourse.nodered.org/t/securing-node-red/3561 "2023-12-24T19:50:48Z")

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I have come to beg for a beginners guide to securing Node-Red which has dashboard elements and is open to the internet. Setting adminAuth & httpNodeAuth as described inSecurity is ok, though I had to sudo npm i bcryptjs…

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## [Messages sent via "On Start" only reliable on partial deploy but not during " nodered.service" start. Possible?](https://discourse.nodered.org/t/messages-sent-via-on-start-only-reliable-on-partial-deploy-but-not-during-nodered-service-start-possible/83989)

<div class="topic-metadata">

**Author:** [@Mike-FUT](https://discourse.nodered.org/u/Mike-FUT)\
**Replies:** 15\
**Last updated:** [24 December 2023 17:18 UTC](https://discourse.nodered.org/t/messages-sent-via-on-start-only-reliable-on-partial-deploy-but-not-during-nodered-service-start-possible/83989 "2023-12-24T17:18:12Z")

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Hi All, I believe the subject already says it really. I'm running latest Node-RED release with Node 18 and I just finished a big bunch of code that is supposed to run whenever I deploy, NR crashes (luckily rarely happe…

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## [Advice neededa; Editing / Keeping multiple secrets](https://discourse.nodered.org/t/advice-neededa-editing-keeping-multiple-secrets/83981)

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**Author:** [@Stwissel](https://discourse.nodered.org/u/Stwissel)\
**Replies:** 9\
**Last updated:** [24 December 2023 11:24 UTC](https://discourse.nodered.org/t/advice-neededa-editing-keeping-multiple-secrets/83981 "2023-12-24T11:24:08Z")

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I just published my latest update to my DDNS node for Cloudflare. In it I split IP acquisition and DNS update into (optional) two nodes to fit my use case. To ensure that a spoke only can update its own DNS entry it n…

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## [Dashboard Switch node value persistance](https://discourse.nodered.org/t/dashboard-switch-node-value-persistance/83995)

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**Author:** [@daxliniere](https://discourse.nodered.org/u/daxliniere)\
**Replies:** 8\
**Last updated:** [24 December 2023 08:55 UTC](https://discourse.nodered.org/t/dashboard-switch-node-value-persistance/83995 "2023-12-24T08:55:17Z")

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Is there a version of the Dashboard Switch node which can store it's value for when the RPi or a flow is restarted? I've had a situation where a timer module (with switch input for pause/resume) started up again, presum…

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## [I am getting error while install the node "npm install node-red-contrib-whatsapp-link"](https://discourse.nodered.org/t/i-am-getting-error-while-install-the-node-npm-install-node-red-contrib-whatsapp-link/84000)

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**Author:** [@saraltech](https://discourse.nodered.org/u/saraltech)\
**Replies:** 1\
**Last updated:** [24 December 2023 07:39 UTC](https://discourse.nodered.org/t/i-am-getting-error-while-install-the-node-npm-install-node-red-contrib-whatsapp-link/84000 "2023-12-24T07:39:50Z")

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@Colin : I saw your answers to the subject problem in the following thread: While installing the node, I am getting following errors: C:\\Users\\sinharde.node-red\>npm install node-red-contrib-whatsapp-link npm ERR! cod…

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## [Athom 15W 1400lm RGBCCT Bulb (LB01-15W-E27)](https://discourse.nodered.org/t/athom-15w-1400lm-rgbcct-bulb-lb01-15w-e27/83997)

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**Author:** [@AD2TM](https://discourse.nodered.org/u/AD2TM)\
**Replies:** 1\
**Last updated:** [24 December 2023 00:11 UTC](https://discourse.nodered.org/t/athom-15w-1400lm-rgbcct-bulb-lb01-15w-e27/83997 "2023-12-24T00:11:24Z")

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I would like to be able to adjust the colors on this bulb, but I do not know where to start. What I wouold like to do is once turned on at sunset, which works, set the brilliance to about 95% At about 11:00PM turn the …

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## [Presence detection - ESP32 Bluetooth Classic scanner](https://discourse.nodered.org/t/presence-detection-esp32-bluetooth-classic-scanner/83988)

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**Author:** [@krambriw](https://discourse.nodered.org/u/krambriw)\
**Replies:** 1\
**Last updated:** [23 December 2023 23:45 UTC](https://discourse.nodered.org/t/presence-detection-esp32-bluetooth-classic-scanner/83988 "2023-12-23T23:45:38Z")

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Here is a little interesting project if you are looking for presence detection to be used in your home automation & security system. Myself, I have since years been using Andrew Freyer's Monitor project. How I am using …

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## ["RequestError: connect ECONNREFUSED 127.0.0.1:443"](https://discourse.nodered.org/t/requesterror-connect-econnrefused-127-0-0-1-443/83993)

<div class="topic-metadata">

**Author:** [@LinkView\_Maze](https://discourse.nodered.org/u/LinkView_Maze)\
**Replies:** 9\
**Last updated:** [23 December 2023 19:25 UTC](https://discourse.nodered.org/t/requesterror-connect-econnrefused-127-0-0-1-443/83993 "2023-12-23T19:25:45Z")

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Hello I Have this error message with node-red v 3.1.3 with request HTTP get What is the probleme ? I have the same flow in node-red v3.0.2 is ok. Thank You

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## [Failed serial connection to Arduino: No such file or directory error](https://discourse.nodered.org/t/failed-serial-connection-to-arduino-no-such-file-or-directory-error/83970)

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**Author:** [@amooro\_123](https://discourse.nodered.org/u/amooro_123)\
**Replies:** 13\
**Last updated:** [23 December 2023 16:16 UTC](https://discourse.nodered.org/t/failed-serial-connection-to-arduino-no-such-file-or-directory-error/83970 "2023-12-23T16:16:25Z")

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I cannot get the serial node to connect to my Arduino Uno on a Zimaboard running Debian 11. Node-red v3.1.3 node.js v16.20.2 This is the error message I get in the debug window when I deploy: "\[serialconfig:0f4961208…

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## [Moxa RestFul Api](https://discourse.nodered.org/t/moxa-restful-api/83982)

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**Author:** [@damica51](https://discourse.nodered.org/u/damica51)\
**Replies:** 0\
**Last updated:** [23 December 2023 14:35 UTC](https://discourse.nodered.org/t/moxa-restful-api/83982 "2023-12-23T14:35:17Z")

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Is anybody using some of the Moxa "Remote I/O" units along with "RestFul Api"?

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## [Best strategy for Reading & Sorting Electricity Cost Array](https://discourse.nodered.org/t/best-strategy-for-reading-sorting-electricity-cost-array/7929)

<div class="topic-metadata">

**Author:** [@Ian](https://discourse.nodered.org/u/Ian)\
**Replies:** 34\
**Last updated:** [23 December 2023 13:15 UTC](https://discourse.nodered.org/t/best-strategy-for-reading-sorting-electricity-cost-array/7929 "2023-12-23T13:15:10Z")

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Hi I have just switched electricity suppliers to Octopus Energy who I think are maybe one of the first to have variable half hour rates in the UK depending on wholesale price. Naturally I want to make some switching dec…

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## [Is it somehow possible to add subgroups?](https://discourse.nodered.org/t/is-it-somehow-possible-to-add-subgroups/83754)

<div class="topic-metadata">

**Author:** [@JazzJackR](https://discourse.nodered.org/u/JazzJackR)\
**Replies:** 3\
**Last updated:** [23 December 2023 11:26 UTC](https://discourse.nodered.org/t/is-it-somehow-possible-to-add-subgroups/83754 "2023-12-23T11:26:52Z")

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Hi, At the moment it is only possible to add a tab and in the tab multiple groups/panels in which the ui elements live. What I want to do is to also group such ui panels in a groupbox or something. Has anybody a hint h…

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## [Using Fuzzy Logic Sugeno In Node Red](https://discourse.nodered.org/t/using-fuzzy-logic-sugeno-in-node-red/83976)

<div class="topic-metadata">

**Author:** [@fikrinizargustiyana](https://discourse.nodered.org/u/fikrinizargustiyana)\
**Replies:** 1\
**Last updated:** [23 December 2023 10:08 UTC](https://discourse.nodered.org/t/using-fuzzy-logic-sugeno-in-node-red/83976 "2023-12-23T10:08:42Z")

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Can anyone share information regarding nodes for Sugeno fuzzy logic? I'm having trouble configuring fuzzy logic on node -red

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## [Cannot start service nodered: Address already in use](https://discourse.nodered.org/t/cannot-start-service-nodered-address-already-in-use/83972)

<div class="topic-metadata">

**Author:** [@Shwowak](https://discourse.nodered.org/u/Shwowak)\
**Replies:** 2\
**Last updated:** [22 December 2023 21:47 UTC](https://discourse.nodered.org/t/cannot-start-service-nodered-address-already-in-use/83972 "2023-12-22T21:47:44Z")

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ERROR: for nodered Cannot start service nodered: Address already in use ERROR: for nodered Cannot start service nodered: Address already in use ERROR: Encountered errors while bringing up the project.

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