# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=18

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

**Page:** 19

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## [Node-red crash on DSM 7.2 Synology with node-red-contrib-hikvision-ultimate](https://discourse.nodered.org/t/node-red-crash-on-dsm-7-2-synology-with-node-red-contrib-hikvision-ultimate/99815)

<div class="topic-metadata">

**Author:** [@loic69](https://discourse.nodered.org/u/loic69)\
**Replies:** 2\
**Last updated:** [29 November 2025 23:06 UTC](https://discourse.nodered.org/t/node-red-crash-on-dsm-7-2-synology-with-node-red-contrib-hikvision-ultimate/99815 "2025-11-29T23:06:40Z")

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Hi all. First message here :blush: I'm using node-red since many years sucessfully on Home Assistant add'on. Now for professional project, I create an node-red container on Synology Container (docker). Here's my dock…

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## [Newbie question about templates](https://discourse.nodered.org/t/newbie-question-about-templates/99814)

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**Author:** [@condmaster](https://discourse.nodered.org/u/condmaster)\
**Replies:** 3\
**Last updated:** [29 November 2025 21:41 UTC](https://discourse.nodered.org/t/newbie-question-about-templates/99814 "2025-11-29T21:41:34Z")

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Hello! My first ever post here.. How do I get the great windrose widget to respond as in this topic: I only see 0 Directon and 0 Speed? My Flow : Inject Node (timestamp) -\> Function Node (Randomizer) -\> Template No…

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## [Mqtt-in - Accessing $SYS/# topics from broker?](https://discourse.nodered.org/t/mqtt-in-accessing-sys-topics-from-broker/99807)

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**Author:** [@TotallyInformation](https://discourse.nodered.org/u/TotallyInformation)\
**Replies:** 2\
**Last updated:** [29 November 2025 15:10 UTC](https://discourse.nodered.org/t/mqtt-in-accessing-sys-topics-from-broker/99807 "2025-11-29T15:10:32Z")

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I was sure that previously I've been able to subscribe to $SYS/# using the mqtt-in node connected to Mosquitto broker? However, try as I may, I cannot now make this work? Is this a bug that has crept in or is it somethi…

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## [Help reading serial port](https://discourse.nodered.org/t/help-reading-serial-port/99740)

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**Author:** [@joeh7](https://discourse.nodered.org/u/joeh7)\
**Replies:** 4\
**Last updated:** [28 November 2025 21:43 UTC](https://discourse.nodered.org/t/help-reading-serial-port/99740 "2025-11-28T21:43:27Z")

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Evening all, I've been struggling to read data from a serial port using the node-red serial input node. If I open the serial port in another program, I can receive the data. However, if I close that connection and open…

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## [Search results: drag & drop link-in or link-out node](https://discourse.nodered.org/t/search-results-drag-drop-link-in-or-link-out-node/99803)

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**Author:** [@gregorius](https://discourse.nodered.org/u/gregorius)\
**Replies:** 0\
**Last updated:** [28 November 2025 19:53 UTC](https://discourse.nodered.org/t/search-results-drag-drop-link-in-or-link-out-node/99803 "2025-11-28T19:53:33Z")

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Hi There, Here's a little feature I just put together: From the search results, I drag a link-in or link-out node and a new node is created that corresponds to the opposite, i.e. if I drag a link-in node, then a link…

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## [How to show Barcode read by @jpkelly/node-red-usbhid nodes](https://discourse.nodered.org/t/how-to-show-barcode-read-by-jpkelly-node-red-usbhid-nodes/99771)

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**Author:** [@GregHNZ](https://discourse.nodered.org/u/GregHNZ)\
**Replies:** 4\
**Last updated:** [28 November 2025 07:01 UTC](https://discourse.nodered.org/t/how-to-show-barcode-read-by-jpkelly-node-red-usbhid-nodes/99771 "2025-11-28T07:01:03Z")

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Scenario Raspberry Pi. Followed the Linux instructions as per node-red-usbhid (node) - Node-RED Have set up a standard Honeywell HH490 model USB Barcode reader. This is to be a standalone device with no HMI, it is t…

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## [Shai-Hulud / Sha1-Hulud - how can I tell whether my NR is affected](https://discourse.nodered.org/t/shai-hulud-sha1-hulud-how-can-i-tell-whether-my-nr-is-affected/99794)

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**Author:** [@gregorius](https://discourse.nodered.org/u/gregorius)\
**Replies:** 4\
**Last updated:** [28 November 2025 06:39 UTC](https://discourse.nodered.org/t/shai-hulud-sha1-hulud-how-can-i-tell-whether-my-nr-is-affected/99794 "2025-11-28T06:39:19Z")

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Hi There, Is there any test to check whether my NR installation has been affected by this attack? I was reading the GitLab write up but it doesn't clearly state how to detect an infection.\\ Is there something simple s…

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## [Getting funky with SQLite? Correct way to test if database table exists?](https://discourse.nodered.org/t/getting-funky-with-sqlite-correct-way-to-test-if-database-table-exists/99768)

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**Author:** [@Jibun-no-Kage](https://discourse.nodered.org/u/Jibun-no-Kage)\
**Replies:** 9\
**Last updated:** [28 November 2025 05:34 UTC](https://discourse.nodered.org/t/getting-funky-with-sqlite-correct-way-to-test-if-database-table-exists/99768 "2025-11-28T05:34:23Z")

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Trying to do three(3) things: Test if table exists Create table if not Insert data once 1 and 2 above met However, I although I think my table exist query is solid, not sure I am testing the right way for its existenc…

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## [Who's heard of this new \`TOON\` structure? Thoughts?](https://discourse.nodered.org/t/whos-heard-of-this-new-toon-structure-thoughts/99741)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 32\
**Last updated:** [27 November 2025 14:19 UTC](https://discourse.nodered.org/t/whos-heard-of-this-new-toon-structure-thoughts/99741 "2025-11-27T14:19:52Z")

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Just watched this clip: Just wondering how much impact it will have here.

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## [Calling an API that uses a WCF channel](https://discourse.nodered.org/t/calling-an-api-that-uses-a-wcf-channel/99659)

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**Author:** [@Chrisoutdoor](https://discourse.nodered.org/u/Chrisoutdoor)\
**Replies:** 4\
**Last updated:** [27 November 2025 03:17 UTC](https://discourse.nodered.org/t/calling-an-api-that-uses-a-wcf-channel/99659 "2025-11-27T03:17:16Z")

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Hello I am using Node-RED 4.1.1, Node.js v24.00.0, and Windows 10 Enterprise 2016 LTSB version 1607. I am working to connect a device that can only be accessed through a remoteAPI via a WCF channel. The way we are doi…

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## [Last admin login monitoring](https://discourse.nodered.org/t/last-admin-login-monitoring/99780)

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**Author:** [@dtmike](https://discourse.nodered.org/u/dtmike)\
**Replies:** 0\
**Last updated:** [26 November 2025 17:04 UTC](https://discourse.nodered.org/t/last-admin-login-monitoring/99780 "2025-11-26T17:04:34Z")

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Hi everyone, I wanted to see date and time from last login of administrator (or user) inside of nodered and then by simple flow send this data to anywhere i want further. Is it's possible, and how to do it? Thanks!

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## [I need help for node-red-huawei-sms 0.1.2 usage](https://discourse.nodered.org/t/i-need-help-for-node-red-huawei-sms-0-1-2-usage/99776)

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**Author:** [@nnekov](https://discourse.nodered.org/u/nnekov)\
**Replies:** 2\
**Last updated:** [25 November 2025 21:11 UTC](https://discourse.nodered.org/t/i-need-help-for-node-red-huawei-sms-0-1-2-usage/99776 "2025-11-25T21:11:09Z")

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Hello friends, I need some help regarding node-red-huawei-sms 0.1.2. I would like to set the recipient's phone number dynamically by using the msg.phone property ( e.g to to reply to sender of SMS). I've tried various v…

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## [Uibuilder kiosk mode](https://discourse.nodered.org/t/uibuilder-kiosk-mode/99777)

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**Author:** [@mrCodeBot](https://discourse.nodered.org/u/mrCodeBot)\
**Replies:** 1\
**Last updated:** [25 November 2025 21:10 UTC](https://discourse.nodered.org/t/uibuilder-kiosk-mode/99777 "2025-11-25T21:10:07Z")

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Hi everyone, I’m looking for some advice from anyone who has experience building UIs with uibuilder in a Linux environment. I’m running Node-RED in kiosk mode and need to support user input, but I’m having trouble getti…

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## [Possible bug in Modbus Getter node](https://discourse.nodered.org/t/possible-bug-in-modbus-getter-node/99760)

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**Author:** [@craigcurtin](https://discourse.nodered.org/u/craigcurtin)\
**Replies:** 2\
**Last updated:** [25 November 2025 14:09 UTC](https://discourse.nodered.org/t/possible-bug-in-modbus-getter-node/99760 "2025-11-25T14:09:36Z")

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NR 4.10 on VM running Ubuntu Running Modbus getter node Feeding in from an inject node (timestamp) and into a Within-time node from node-red-contrib-sun-position - if i leave it output the full message object (which in…

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## [After Update from 4.1 to 4.1.1 Node-RED consumes 120% CPU after some hour running](https://discourse.nodered.org/t/after-update-from-4-1-to-4-1-1-node-red-consumes-120-cpu-after-some-hour-running/99759)

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**Author:** [@maxweissboeck](https://discourse.nodered.org/u/maxweissboeck)\
**Replies:** 4\
**Last updated:** [25 November 2025 09:30 UTC](https://discourse.nodered.org/t/after-update-from-4-1-to-4-1-1-node-red-consumes-120-cpu-after-some-hour-running/99759 "2025-11-25T09:30:45Z")

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Node-RED is running in a Synology NAS docker Container for over a year now, no problems so far. Three days ago I did an update from 4.1 to 4.1.1, I also updated all Nodes that had a new version. I also installed Dashboar…

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## [DNP3 protocol is not working](https://discourse.nodered.org/t/dnp3-protocol-is-not-working/99728)

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**Author:** [@talgatkarak](https://discourse.nodered.org/u/talgatkarak)\
**Replies:** 4\
**Last updated:** [25 November 2025 06:44 UTC](https://discourse.nodered.org/t/dnp3-protocol-is-not-working/99728 "2025-11-25T06:44:23Z")

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Hi everyone, I wanted to use DNP3 protocol on Node-RED in my student project, but I faced with DNP library issue. Just, FYI (my setup is next): Node-RED version: v4.1.1 Node.js version: v24.11.1 Node Library: DNP I…

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## [How to enable or disable UI button when message to button input triggers button feature set?](https://discourse.nodered.org/t/how-to-enable-or-disable-ui-button-when-message-to-button-input-triggers-button-feature-set/99756)

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**Author:** [@Nodi.Rubrum](https://discourse.nodered.org/u/Nodi.Rubrum)\
**Replies:** 8\
**Last updated:** [24 November 2025 20:41 UTC](https://discourse.nodered.org/t/how-to-enable-or-disable-ui-button-when-message-to-button-input-triggers-button-feature-set/99756 "2025-11-24T20:41:05Z")

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How to enable or disable UI button when message to button input triggers button feature set? In the old dashboard you could do this by passing msg.enabled false to disable, and msg.enabled true to enable, and deleting m…

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## [Switch on buffer payload type](https://discourse.nodered.org/t/switch-on-buffer-payload-type/99767)

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**Author:** [@cymplecy](https://discourse.nodered.org/u/cymplecy)\
**Replies:** 2\
**Last updated:** [24 November 2025 16:39 UTC](https://discourse.nodered.org/t/switch-on-buffer-payload-type/99767 "2025-11-24T16:39:17Z")

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I've got an MQTT buffer feed of the RGB values of a coloured switch press e.g. press red - get \[255,0,0\], blue get \[0,0,255\] etc I'd like to have a switch that routes each colour to a different output but there doesn'…

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## [Very weird happenings with \`exec\` node and rsync](https://discourse.nodered.org/t/very-weird-happenings-with-exec-node-and-rsync/99745)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 15\
**Last updated:** [23 November 2025 23:53 UTC](https://discourse.nodered.org/t/very-weird-happenings-with-exec-node-and-rsync/99745 "2025-11-23T23:53:23Z")

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I am sharing a painful episode I recently had. Is this a bug? (repeated at the end, but anyway.) Back story: I have a NAS which is not always on. When it is on, I want my 3 Pi's to back up their saved flows to it. …

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## [Gpio causes bouncing, don't understand debouncer](https://discourse.nodered.org/t/gpio-causes-bouncing-dont-understand-debouncer/99750)

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**Author:** [@Aziona](https://discourse.nodered.org/u/Aziona)\
**Replies:** 2\
**Last updated:** [23 November 2025 14:47 UTC](https://discourse.nodered.org/t/gpio-causes-bouncing-dont-understand-debouncer/99750 "2025-11-23T14:47:44Z")

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I have a water flow sensor connected to 3.3v and ground on my RPi3. If the water is low the the rpi-gpio IN node shows 1. If the water is high it fluctuates quickly between 0 and 1. How should I use Debounce nodes to sh…

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## [Error when loading "Extended example using the IIFE client (external)"](https://discourse.nodered.org/t/error-when-loading-extended-example-using-the-iife-client-external/99748)

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**Author:** [@fortunebizkit](https://discourse.nodered.org/u/fortunebizkit)\
**Replies:** 3\
**Last updated:** [23 November 2025 12:27 UTC](https://discourse.nodered.org/t/error-when-loading-extended-example-using-the-iife-client-external/99748 "2025-11-23T12:27:13Z")

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Hi Folks, I am new (noob) to node-red and trying out the uibuilder. I am also a noob to front end technologies. I followed the steps under "A first-timers walkthrough" in this link ( UIBUILDER Documentation v7) I am d…

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## [Dashboard 2.0 in Edit Mode, I cannot resize any graphic element?](https://discourse.nodered.org/t/dashboard-2-0-in-edit-mode-i-cannot-resize-any-graphic-element/99720)

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**Author:** [@Nodi.Rubrum](https://discourse.nodered.org/u/Nodi.Rubrum)\
**Replies:** 4\
**Last updated:** [23 November 2025 07:27 UTC](https://discourse.nodered.org/t/dashboard-2-0-in-edit-mode-i-cannot-resize-any-graphic-element/99720 "2025-11-23T07:27:23Z")

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Dashboard 2.0 in Edit Mode, I cannot resize any graphic element? Is there something special I have to do to enable layout changes?

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## [Odd issue comes and goes, apparently random?](https://discourse.nodered.org/t/odd-issue-comes-and-goes-apparently-random/99743)

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**Author:** [@Nodi.Rubrum](https://discourse.nodered.org/u/Nodi.Rubrum)\
**Replies:** 5\
**Last updated:** [23 November 2025 07:24 UTC](https://discourse.nodered.org/t/odd-issue-comes-and-goes-apparently-random/99743 "2025-11-23T07:24:19Z")

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Odd issue comes and goes, apparently random? This going to sound a big crazy... but here is the scenario. Set flow variable. Works Change flow variable. Works Change flow variable again. Fails. The new value is nev…

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## [Help with nested if-then-else please](https://discourse.nodered.org/t/help-with-nested-if-then-else-please/99733)

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**Author:** [@DaveK](https://discourse.nodered.org/u/DaveK)\
**Replies:** 11\
**Last updated:** [22 November 2025 13:59 UTC](https://discourse.nodered.org/t/help-with-nested-if-then-else-please/99733 "2025-11-22T13:59:43Z")

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Hi again, I'm slowly learning Node Red and its workings, trying to get a function node working with nested if-then-else statements but despite messing for some hours I just can't grasp it. Could someone kindly have a lo…

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## [Where is the pallet manager in 4.1.1?](https://discourse.nodered.org/t/where-is-the-pallet-manager-in-4-1-1/99746)

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**Author:** [@Ogawa-Kazuma](https://discourse.nodered.org/u/Ogawa-Kazuma)\
**Replies:** 2\
**Last updated:** [22 November 2025 05:36 UTC](https://discourse.nodered.org/t/where-is-the-pallet-manager-in-4-1-1/99746 "2025-11-22T05:36:52Z")

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## [Suggestions on TCP/Port ping via NR since the old 'node-red-contrib-tcp-ping' module is crashing NR?](https://discourse.nodered.org/t/suggestions-on-tcp-port-ping-via-nr-since-the-old-node-red-contrib-tcp-ping-module-is-crashing-nr/99721)

<div class="topic-metadata">

**Author:** [@Nodi.Rubrum](https://discourse.nodered.org/u/Nodi.Rubrum)\
**Replies:** 2\
**Last updated:** [22 November 2025 00:37 UTC](https://discourse.nodered.org/t/suggestions-on-tcp-port-ping-via-nr-since-the-old-node-red-contrib-tcp-ping-module-is-crashing-nr/99721 "2025-11-22T00:37:58Z")

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Suggestions on TCP/Port ping via NR since the old 'node-red-contrib-tcp-ping' module is crashing NR?

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## [Stuck with what's happening with MQTT topics](https://discourse.nodered.org/t/stuck-with-whats-happening-with-mqtt-topics/99714)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 12\
**Last updated:** [21 November 2025 16:52 UTC](https://discourse.nodered.org/t/stuck-with-whats-happening-with-mqtt-topics/99714 "2025-11-21T16:52:46Z")

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Folks, I'm stuck. The story: I have MQTT and use it to move messages between machines. One of which is my Public\_IP address. Yet, if I run MQTT Explorer it says that topic is empty. Strange as it is published to that…

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## [Setting SQLite as persistant context storage](https://discourse.nodered.org/t/setting-sqlite-as-persistant-context-storage/99705)

<div class="topic-metadata">

**Author:** [@shubhamnodered](https://discourse.nodered.org/u/shubhamnodered)\
**Replies:** 16\
**Last updated:** [21 November 2025 16:07 UTC](https://discourse.nodered.org/t/setting-sqlite-as-persistant-context-storage/99705 "2025-11-21T16:07:17Z")

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Hi friends, Just wanted to know if it is possible to setup SQLite as context-storage instead of built-in context storage (memory or localfilesystem). ? As its already recommended, setting localfilesystem flush interval …

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## [Trying to access a message object but not sure how](https://discourse.nodered.org/t/trying-to-access-a-message-object-but-not-sure-how/99727)

<div class="topic-metadata">

**Author:** [@DaveK](https://discourse.nodered.org/u/DaveK)\
**Replies:** 11\
**Last updated:** [21 November 2025 13:07 UTC](https://discourse.nodered.org/t/trying-to-access-a-message-object-but-not-sure-how/99727 "2025-11-21T13:07:34Z")

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Hi all, I'm learning Node Red for Home Assistant and want to access the value of the on: part of the object in the picture but can't figure it out, It doesn't seem to be normal message with a msg.payload format ? Any …

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## [Subdirectories of httpStatic](https://discourse.nodered.org/t/subdirectories-of-httpstatic/99731)

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**Author:** [@jbudd](https://discourse.nodered.org/u/jbudd)\
**Replies:** 7\
**Last updated:** [21 November 2025 12:00 UTC](https://discourse.nodered.org/t/subdirectories-of-httpstatic/99731 "2025-11-21T12:00:45Z")

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On a Pi settings.js has httpStatic: '/home/pi/.node-red/node-red-static/' I put weather icon files in /home/pi/.node-red/node-red-static/icons and then copied them into a subdirectory /home/pi/.node-red/node-red-static/…

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