# Latest

**URL:** https://discourse.nodered.org/latest.md?page=31

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

**Page:** 32

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## [How to reliably sequence Modbus requests](https://discourse.nodered.org/t/how-to-reliably-sequence-modbus-requests/100003)

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**Author:** [@Breizh13](https://discourse.nodered.org/u/Breizh13)\
**Replies:** 3\
**Last updated:** [21 December 2025 13:17 UTC](https://discourse.nodered.org/t/how-to-reliably-sequence-modbus-requests/100003 "2025-12-21T13:17:17Z")

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Hello, or good evening, depending on the time zone... I think I'm posting in the right section... I'm fairly new to Node-Red, but I'm enjoying it and making good progress with my project. Basically, it's a solar router…

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## [Converting Python To NodeRed A Simple Example](https://discourse.nodered.org/t/converting-python-to-nodered-a-simple-example/99994)

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**Author:** [@Nodi.Rubrum](https://discourse.nodered.org/u/Nodi.Rubrum)\
**Replies:** 3\
**Last updated:** [21 December 2025 06:55 UTC](https://discourse.nodered.org/t/converting-python-to-nodered-a-simple-example/99994 "2025-12-21T06:55:30Z")

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Looking for suggestions in converting the below python to NR: import socket import sys import time # #https://support.tesmart.com/hc/en-us/categories/7606227532953-Download # # --- Configuration --- SWITCH\_IP = "192.1…

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## [Perspectives for Node-RED editor](https://discourse.nodered.org/t/perspectives-for-node-red-editor/100002)

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**Author:** [@rei\_vilo](https://discourse.nodered.org/u/rei_vilo)\
**Replies:** 0\
**Last updated:** [20 December 2025 20:06 UTC](https://discourse.nodered.org/t/perspectives-for-node-red-editor/100002 "2025-12-20T20:06:07Z")

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Answering dimitrieh invitation, here a separate thread about using perspectives for the Node-RED editor. The three main challenges I am facing when I ma using Node-RED are: Too many panes Some panes are not used toget…

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## [Unable to start node-red post domain change](https://discourse.nodered.org/t/unable-to-start-node-red-post-domain-change/100000)

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**Author:** [@joey\_ind](https://discourse.nodered.org/u/joey_ind)\
**Replies:** 8\
**Last updated:** [20 December 2025 12:38 UTC](https://discourse.nodered.org/t/unable-to-start-node-red-post-domain-change/100000 "2025-12-20T12:38:55Z")

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Hi folks, I am absolutely going bonkers after a domain change done on a PC (windows) and post which I am not able to start node-red via cmd-command. I can see the node files in .node folder but the application wont star…

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## [With Dashboard 2.0 Using a UI button group how to enable/disable individual options?](https://discourse.nodered.org/t/with-dashboard-2-0-using-a-ui-button-group-how-to-enable-disable-individual-options/99996)

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**Author:** [@Nodi.Rubrum](https://discourse.nodered.org/u/Nodi.Rubrum)\
**Replies:** 1\
**Last updated:** [20 December 2025 05:37 UTC](https://discourse.nodered.org/t/with-dashboard-2-0-using-a-ui-button-group-how-to-enable-disable-individual-options/99996 "2025-12-20T05:37:16Z")

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With Dashboard 2.0 Using a UI button group how to enable/disable individual options? Say I have 3 options in the button group, and operator selects option 2, want to disable option 2 until option 1 or 3 is selected. Th…

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## [Apply a class to a text node](https://discourse.nodered.org/t/apply-a-class-to-a-text-node/99991)

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**Author:** [@AloisBachmeier](https://discourse.nodered.org/u/AloisBachmeier)\
**Replies:** 2\
**Last updated:** [19 December 2025 21:47 UTC](https://discourse.nodered.org/t/apply-a-class-to-a-text-node/99991 "2025-12-19T21:47:58Z")

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Doing my first steps into Dashboard 2. The dashboard does not any reaction to font-size: --px. What I'm doing wrong? \[ { "id": "8ea5dbdfb7c2ac3f", "type": "tab", "label": "Flow 1", "…

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## [Manage an object dynamically](https://discourse.nodered.org/t/manage-an-object-dynamically/99969)

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**Author:** [@GiovanniG](https://discourse.nodered.org/u/GiovanniG)\
**Replies:** 3\
**Last updated:** [19 December 2025 17:52 UTC](https://discourse.nodered.org/t/manage-an-object-dynamically/99969 "2025-12-19T17:52:21Z")

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Hi, let's consider to have 8 messages to output from a function, they are all initally set with payload:false Now I want that one of 8, depending on the msg.topic input is turning to null, how to? let msg1,msg2,msg3,ms…

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## [LED indicator in Dashboard 2](https://discourse.nodered.org/t/led-indicator-in-dashboard-2/99992)

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**Author:** [@AloisBachmeier](https://discourse.nodered.org/u/AloisBachmeier)\
**Replies:** 2\
**Last updated:** [19 December 2025 16:08 UTC](https://discourse.nodered.org/t/led-indicator-in-dashboard-2/99992 "2025-12-19T16:08:34Z")

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Hi all: In the old dashboard I've used "Value formate" + "... class="fa fa-circle" ..." to show e.g. an on/off status. However this is not possible in in Dashboard 2. Can any body create a simple example for me? Pls no…

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## [FlowFuse 2.25! (FlowFuse Expert Assistant comes to open-source Node-RED!)](https://discourse.nodered.org/t/flowfuse-2-25-flowfuse-expert-assistant-comes-to-open-source-node-red/99984)

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**Author:** [@gstout](https://discourse.nodered.org/u/gstout)\
**Replies:** 2\
**Last updated:** [19 December 2025 09:30 UTC](https://discourse.nodered.org/t/flowfuse-2-25-flowfuse-expert-assistant-comes-to-open-source-node-red/99984 "2025-12-19T09:30:54Z")

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Hey everyone, great news as we head into the holidays: FlowFuse 2.25 has now shipped, and with it: MCP resource interaction directly in FlowFuse Expert, FlowFuse Expert Assistant now available to all Node-RED users, impr…

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## [Node-RED Freezing Issue After Running for a Period of Time](https://discourse.nodered.org/t/node-red-freezing-issue-after-running-for-a-period-of-time/99972)

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**Author:** [@superaugus](https://discourse.nodered.org/u/superaugus)\
**Replies:** 7\
**Last updated:** [19 December 2025 07:54 UTC](https://discourse.nodered.org/t/node-red-freezing-issue-after-running-for-a-period-of-time/99972 "2025-12-19T07:54:41Z")

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The main operation flow of my Node-RED program is as follows: Act as a client to connect to access control systems and elevators, and conduct command interaction with them. Act as a scheduling center to subscribe to do…

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## [Trying to chart high/low temp](https://discourse.nodered.org/t/trying-to-chart-high-low-temp/99775)

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**Author:** [@montyfert](https://discourse.nodered.org/u/montyfert)\
**Replies:** 46\
**Last updated:** [18 December 2025 23:29 UTC](https://discourse.nodered.org/t/trying-to-chart-high-low-temp/99775 "2025-12-18T23:29:09Z")

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hi i'm trying to make a chart for highest and lowest temperatures outside from an mqtt sensor. but am failing miserably, any sugestions where im going wrong would be great thanks martin \[ { "id": "558a976d1…

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## [100% CPU Issues - Indicating And Finding Possible Cause](https://discourse.nodered.org/t/100-cpu-issues-indicating-and-finding-possible-cause/99980)

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**Author:** [@MyRandomThoughts](https://discourse.nodered.org/u/MyRandomThoughts)\
**Replies:** 1\
**Last updated:** [18 December 2025 17:41 UTC](https://discourse.nodered.org/t/100-cpu-issues-indicating-and-finding-possible-cause/99980 "2025-12-18T17:41:52Z")

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There have been a few topics on here about Node-RED consuming 100% CPU, with no apparent reason why. The two main reasons for these issues are MQTT modes in a loop and dodgy code. However, there is nothing in Node-RED …

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## [Dynamically toggle between dashboard themes](https://discourse.nodered.org/t/dynamically-toggle-between-dashboard-themes/99909)

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**Author:** [@Mick](https://discourse.nodered.org/u/Mick)\
**Replies:** 19\
**Last updated:** [18 December 2025 14:27 UTC](https://discourse.nodered.org/t/dynamically-toggle-between-dashboard-themes/99909 "2025-12-18T14:27:50Z")

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I found an example to toggle the theme from light to dark. It works however it is using the Vuetify light and dark themes. Is there a way to call the theme defined in the dashboard theming panel \<template\> \<v-card\> …

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## [Use Node-Red for send data from AS400 to PLC](https://discourse.nodered.org/t/use-node-red-for-send-data-from-as400-to-plc/99970)

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**Author:** [@Poonoi](https://discourse.nodered.org/u/Poonoi)\
**Replies:** 1\
**Last updated:** [18 December 2025 13:25 UTC](https://discourse.nodered.org/t/use-node-red-for-send-data-from-as400-to-plc/99970 "2025-12-18T13:25:28Z")

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Anyone have experience to use Node-Red for send/receive data between AS400 (DB2) and PLC

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## [Ways to improve flow documentation](https://discourse.nodered.org/t/ways-to-improve-flow-documentation/99924)

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**Author:** [@duaw](https://discourse.nodered.org/u/duaw)\
**Replies:** 28\
**Last updated:** [18 December 2025 11:30 UTC](https://discourse.nodered.org/t/ways-to-improve-flow-documentation/99924 "2025-12-18T11:30:42Z")

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Dear all! Documenting our flows ist very important. Self documentation (like proper names, groups, etc.) is means, but not always sufficient. Additional information ('Description') added to flows helps here and there. …

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## [NodeRed Dashboard and Modbus control delay / problems](https://discourse.nodered.org/t/nodered-dashboard-and-modbus-control-delay-problems/99977)

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**Author:** [@Daks](https://discourse.nodered.org/u/Daks)\
**Replies:** 1\
**Last updated:** [18 December 2025 11:04 UTC](https://discourse.nodered.org/t/nodered-dashboard-and-modbus-control-delay-problems/99977 "2025-12-18T11:04:27Z")

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Hey all, Currently im working on a project with SMA inverters (uses Sunspec registers), where im building a node-red enviornment to read and control. Below is my SMA inverter configuration along with what the dashboard…

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## [Dashboard 2, difficulties to layout](https://discourse.nodered.org/t/dashboard-2-difficulties-to-layout/99955)

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**Author:** [@GiovanniG](https://discourse.nodered.org/u/GiovanniG)\
**Replies:** 3\
**Last updated:** [18 December 2025 09:54 UTC](https://discourse.nodered.org/t/dashboard-2-difficulties-to-layout/99955 "2025-12-18T09:54:11Z")

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Hi mates, I'm moving to approach the v2 and I can't figure out how can I manage the sizes of buttons in the way I like, on v1 I could do it easly, move buttons between each other, enlarge the field. Here I can't find a w…

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## [Transfer of an integer from HA --\> NodeRed --\> Modbus --\> CMI (TA)](https://discourse.nodered.org/t/transfer-of-an-integer-from-ha-nodered-modbus-cmi-ta/99932)

<div class="topic-metadata">

**Author:** [@ICEMAN77](https://discourse.nodered.org/u/ICEMAN77)\
**Replies:** 1\
**Last updated:** [17 December 2025 23:27 UTC](https://discourse.nodered.org/t/transfer-of-an-integer-from-ha-nodered-modbus-cmi-ta/99932 "2025-12-17T23:27:29Z")

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Hi, I am a bit new to NodeRed. I want so send an Integer regularly on change from HomeAssistant to my C.M.I from Technische Alternative. My HomeAssistant is running on a dedicated Virtualbox VM. The Virtualbox runs in Wi…

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## [Modbus Write not working when its status is not "active"](https://discourse.nodered.org/t/modbus-write-not-working-when-its-status-is-not-active/99963)

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**Author:** [@Milk](https://discourse.nodered.org/u/Milk)\
**Replies:** 3\
**Last updated:** [17 December 2025 21:43 UTC](https://discourse.nodered.org/t/modbus-write-not-working-when-its-status-is-not-active/99963 "2025-12-17T21:43:14Z")

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I have a switch connected to a Modbus Write coil where it is only working once its in the "active" stage (que-reconnect-initialize-connected-active). At every other stage sending a 1 or 0 out would get missed. Is there…

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## [Suspend debug button](https://discourse.nodered.org/t/suspend-debug-button/99952)

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**Author:** [@burner](https://discourse.nodered.org/u/burner)\
**Replies:** 19\
**Last updated:** [17 December 2025 20:42 UTC](https://discourse.nodered.org/t/suspend-debug-button/99952 "2025-12-17T20:42:40Z")

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When there is a lot of debug output, the debug window auto-clears and auto-scrolls. This sometimes makes it very hard to inspect a single object. It would be useful to have a button that allows suspending incoming debug …

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## [Sharing global variable across multiple instances](https://discourse.nodered.org/t/sharing-global-variable-across-multiple-instances/99781)

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**Author:** [@michaelbusry](https://discourse.nodered.org/u/michaelbusry)\
**Replies:** 5\
**Last updated:** [17 December 2025 19:21 UTC](https://discourse.nodered.org/t/sharing-global-variable-across-multiple-instances/99781 "2025-12-17T19:21:31Z")

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I have been given the task of refactoring out flows into multiple instances. What I found is there are many global variables that the different flows use. I'm looking for the easiest way to share my globals with the fou…

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## [Large number of flows](https://discourse.nodered.org/t/large-number-of-flows/99966)

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**Author:** [@Jimbo84](https://discourse.nodered.org/u/Jimbo84)\
**Replies:** 6\
**Last updated:** [17 December 2025 15:37 UTC](https://discourse.nodered.org/t/large-number-of-flows/99966 "2025-12-17T15:37:03Z")

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Is there a maximum suggested number of flows within NodeRed? We are looking at using it with some workflow nodes from Objectif Lune, we will however have over 200 flows possibly so just wondering how the system would co…

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## [Dashboard 2 multiple line from sql database](https://discourse.nodered.org/t/dashboard-2-multiple-line-from-sql-database/99774)

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**Author:** [@warnert](https://discourse.nodered.org/u/warnert)\
**Replies:** 32\
**Last updated:** [17 December 2025 14:27 UTC](https://discourse.nodered.org/t/dashboard-2-multiple-line-from-sql-database/99774 "2025-12-17T14:27:43Z")

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I am migrating from Dashboard 1 to Dashboard 2. I select temperatures from a database (mariadb) from a whole day and format those with a JSONata expression in a change-node. Dash1 gives a nice graph with the 3 temperatur…

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## [Ui-list of switches replacement](https://discourse.nodered.org/t/ui-list-of-switches-replacement/99961)

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**Author:** [@novski](https://discourse.nodered.org/u/novski)\
**Replies:** 2\
**Last updated:** [17 December 2025 09:54 UTC](https://discourse.nodered.org/t/ui-list-of-switches-replacement/99961 "2025-12-17T09:54:41Z")

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I have a ui-list with switches and need to replace that with dashboard v2. How can I replace that? I read this: https://discourse.nodered.org/t/ui-list-for-dashboard-2 It seems like a dynamic list of switches doesn…

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## [CSS help for fixing D2 issue](https://discourse.nodered.org/t/css-help-for-fixing-d2-issue/99953)

<div class="topic-metadata">

**Author:** [@Colin](https://discourse.nodered.org/u/Colin)\
**Replies:** 8\
**Last updated:** [17 December 2025 09:45 UTC](https://discourse.nodered.org/t/css-help-for-fixing-d2-issue/99953 "2025-12-17T09:45:37Z")

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The Text Input and Number input widgets in the flowfuse dashboard (D2) do not pay correct attention to the row height specified in the theme when the Row Height is set to other than the default (48px). For example when …

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## [Built a reliable Telegram + MySQL logger flow - no more missed alerts](https://discourse.nodered.org/t/built-a-reliable-telegram-mysql-logger-flow-no-more-missed-alerts/99920)

<div class="topic-metadata">

**Author:** [@MDMarkFlowFactory](https://discourse.nodered.org/u/MDMarkFlowFactory)\
**Replies:** 10\
**Last updated:** [17 December 2025 08:35 UTC](https://discourse.nodered.org/t/built-a-reliable-telegram-mysql-logger-flow-no-more-missed-alerts/99920 "2025-12-17T08:35:54Z")

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Hi everyone, I wanted to share a Node-RED flow I built to solve a common problem: missing important notifications and struggling with manual logs. This flow automatically logs events to a MySQL database (with timestamps…

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## [Replicate CURL -F arguments for plate-recognizer on-prem API call](https://discourse.nodered.org/t/replicate-curl-f-arguments-for-plate-recognizer-on-prem-api-call/99947)

<div class="topic-metadata">

**Author:** [@glossyio](https://discourse.nodered.org/u/glossyio)\
**Replies:** 2\
**Last updated:** [16 December 2025 00:48 UTC](https://discourse.nodered.org/t/replicate-curl-f-arguments-for-plate-recognizer-on-prem-api-call/99947 "2025-12-16T00:48:34Z")

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This should be an easy-ball question for folks, but it's not connecting for me right now, so I would appreciate help. How do I build a node-red message that goes to an http request node that represents the curl below? T…

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## [Node-RED version of MQTT Explorer](https://discourse.nodered.org/t/node-red-version-of-mqtt-explorer/99738)

<div class="topic-metadata">

**Author:** [@TotallyInformation](https://discourse.nodered.org/u/TotallyInformation)\
**Replies:** 33\
**Last updated:** [15 December 2025 16:46 UTC](https://discourse.nodered.org/t/node-red-version-of-mqtt-explorer/99738 "2025-12-15T16:46:32Z")

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Hi all, In a recent thread, I promised @Trying\_to\_learn that I would revisit a project I started quite a long time ago now, which is a replacement for the MQTT Explorer desktop app. So here is my first draft. It is stil…

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## [HTML in body of mail](https://discourse.nodered.org/t/html-in-body-of-mail/99946)

<div class="topic-metadata">

**Author:** [@smanjunath211](https://discourse.nodered.org/u/smanjunath211)\
**Replies:** 6\
**Last updated:** [15 December 2025 16:23 UTC](https://discourse.nodered.org/t/html-in-body-of-mail/99946 "2025-12-15T16:23:12Z")

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This may not be much, however since i took so much time to get it done and accomplished what i wanted, posting it here, for someone who may be interested. I already had a flow where a temperature report is sent on a dai…

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## [Failure updating Flowfuse dashboard](https://discourse.nodered.org/t/failure-updating-flowfuse-dashboard/99950)

<div class="topic-metadata">

**Author:** [@jbudd](https://discourse.nodered.org/u/jbudd)\
**Replies:** 6\
**Last updated:** [15 December 2025 12:10 UTC](https://discourse.nodered.org/t/failure-updating-flowfuse-dashboard/99950 "2025-12-15T12:10:18Z")

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I have successfully updated Dashboard 2 to 1.30.0 on a Pi running NR v4.1.0. On another Pi which runs v5.0.0-beta.1 though, using the updates available button I get a warning npm error code EACCES npm error syscall mkd…

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