# Latest

**URL:** https://discourse.nodered.org/latest.md?no_subcategories=false&page=92

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

**Page:** 93

---

## [Cannot send command to Niryo Ned2 robot](https://discourse.nodered.org/t/cannot-send-command-to-niryo-ned2-robot/95939)

<div class="topic-metadata">

**Author:** [@Safouene28](https://discourse.nodered.org/u/Safouene28)\
**Replies:** 2\
**Last updated:** [13 March 2025 09:20 UTC](https://discourse.nodered.org/t/cannot-send-command-to-niryo-ned2-robot/95939 "2025-03-13T09:20:32Z")

</div>

Hello everyone, I would like to know if someone has already worked on the niryo ned2 robot, I tried something simple to send a calibration command, but nothing happens, after some time, it disconnects. I know there is s…

---

## [Dropdown node - what am I missing](https://discourse.nodered.org/t/dropdown-node-what-am-i-missing/95935)

<div class="topic-metadata">

**Author:** [@itolond](https://discourse.nodered.org/u/itolond)\
**Replies:** 6\
**Last updated:** [13 March 2025 06:56 UTC](https://discourse.nodered.org/t/dropdown-node-what-am-i-missing/95935 "2025-03-13T06:56:12Z")

</div>

\[Newbie\] Following a video guide on how to set up a dropdown in Node-Red seemed very straightforward, as I am using a static list in the dropdown. Using "MSG.Dropdown" However, I see the MSG output via the debug but wit…

---

## [Newbee question](https://discourse.nodered.org/t/newbee-question/95959)

<div class="topic-metadata">

**Author:** [@RonaldHA](https://discourse.nodered.org/u/RonaldHA)\
**Replies:** 1\
**Last updated:** [12 March 2025 23:58 UTC](https://discourse.nodered.org/t/newbee-question/95959 "2025-03-12T23:58:07Z")

</div>

I am new to Node Red, and have watched several videos but I still can't figure out the question below. In HA I have a Boolean input ON/OFF if it is on I want to use scheme 1 and if it is off scheme 2. A lamp must ligh…

---

## [Using modules Offline](https://discourse.nodered.org/t/using-modules-offline/95946)

<div class="topic-metadata">

**Author:** [@LoRdOfUnO](https://discourse.nodered.org/u/LoRdOfUnO)\
**Replies:** 2\
**Last updated:** [12 March 2025 21:41 UTC](https://discourse.nodered.org/t/using-modules-offline/95946 "2025-03-12T21:41:39Z")

</div>

Hi All, I'm trying to use otpauth otpauth - npm inside of Nodered function node using the modules import Use any npm module in Node-RED • FlowFuse. The issue is that the node red doesn't reach internet. When deploying…

---

## [Error rc217 or 247. When installing, deleting, updating nodes](https://discourse.nodered.org/t/error-rc217-or-247-when-installing-deleting-updating-nodes/95887)

<div class="topic-metadata">

**Author:** [@Alex\_engineer](https://discourse.nodered.org/u/Alex_engineer)\
**Replies:** 27\
**Last updated:** [12 March 2025 18:41 UTC](https://discourse.nodered.org/t/error-rc217-or-247-when-installing-deleting-updating-nodes/95887 "2025-03-12T18:41:49Z")

</div>

Hello. I have this error npm install --no-audit --no-update-notifier --no-fund --save --save-prefix=~ --omit=dev --engine-strict @node-red-contrib-themes/theme-collection@4.0.11 rc=217 when installing, deleting, updat…

---

## [Truncate String?](https://discourse.nodered.org/t/truncate-string/95947)

<div class="topic-metadata">

**Author:** [@damica51](https://discourse.nodered.org/u/damica51)\
**Replies:** 3\
**Last updated:** [12 March 2025 16:46 UTC](https://discourse.nodered.org/t/truncate-string/95947 "2025-03-12T16:46:00Z")

</div>

The msg.datetime is a string and I am trying to get rid of the last 5 char. I just want the Date and Time. I want to get rid of what the green arrow is pointing to. Thanks for any help

---

## [Smarter programming with subflow and sensors](https://discourse.nodered.org/t/smarter-programming-with-subflow-and-sensors/95945)

<div class="topic-metadata">

**Author:** [@MrX](https://discourse.nodered.org/u/MrX)\
**Replies:** 4\
**Last updated:** [12 March 2025 15:29 UTC](https://discourse.nodered.org/t/smarter-programming-with-subflow-and-sensors/95945 "2025-03-12T15:29:41Z")

</div>

I want to use one common subflow for many types of sensors to get the sensors value. The sensors value is received from the MQTT message with "msg.topic" = "tele/xxx/SENSOR", sent with TELEPERIOD interval. A "Environme…

---

## [Node-Red Security](https://discourse.nodered.org/t/node-red-security/95858)

<div class="topic-metadata">

**Author:** [@WDL](https://discourse.nodered.org/u/WDL)\
**Replies:** 11\
**Last updated:** [12 March 2025 15:15 UTC](https://discourse.nodered.org/t/node-red-security/95858 "2025-03-12T15:15:45Z")

</div>

Hi, Have read a lot here about NR and security issues when deploying in the cloud. Have read that it is good to go and also that don't do it as commercially you are going to get issues. The security of NR in the cloud…

---

## [Feature Request: Please add credential input to Inject and Change Node](https://discourse.nodered.org/t/feature-request-please-add-credential-input-to-inject-and-change-node/95645)

<div class="topic-metadata">

**Author:** [@HarryPottar](https://discourse.nodered.org/u/HarryPottar)\
**Replies:** 9\
**Last updated:** [12 March 2025 14:34 UTC](https://discourse.nodered.org/t/feature-request-please-add-credential-input-to-inject-and-change-node/95645 "2025-03-12T14:34:32Z")

</div>

Hello, I communicate with multiple instances of the same API. I have common flows; the only difference is the host and the credentials. I use a change node to set the message values passed into the connector. However…

---

## [Ui iframe VPN access](https://discourse.nodered.org/t/ui-iframe-vpn-access/95854)

<div class="topic-metadata">

**Author:** [@Zwen](https://discourse.nodered.org/u/Zwen)\
**Replies:** 14\
**Last updated:** [12 March 2025 09:35 UTC](https://discourse.nodered.org/t/ui-iframe-vpn-access/95854 "2025-03-12T09:35:16Z")

</div>

Hello community, this may not be the most appropriate forum for the topic, but maybe someone can help me. I have a RaspberryPi running with NodeRed. I would like to use a ui-iframe to embed local web interfaces (e.g. a…

---

## [Environment variable in subflow name?](https://discourse.nodered.org/t/environment-variable-in-subflow-name/95902)

<div class="topic-metadata">

**Author:** [@ktw](https://discourse.nodered.org/u/ktw)\
**Replies:** 8\
**Last updated:** [12 March 2025 10:47 UTC](https://discourse.nodered.org/t/environment-variable-in-subflow-name/95902 "2025-03-12T10:47:22Z")

</div>

Hi. Is it possible to use an environment variable in a subflow name, to display the current selection? Or is there a better way of doing this?

---

## [Best way to combine multiple Modbus RTU controllers into a single dashboard](https://discourse.nodered.org/t/best-way-to-combine-multiple-modbus-rtu-controllers-into-a-single-dashboard/95851)

<div class="topic-metadata">

**Author:** [@grant1](https://discourse.nodered.org/u/grant1)\
**Replies:** 6\
**Last updated:** [12 March 2025 02:04 UTC](https://discourse.nodered.org/t/best-way-to-combine-multiple-modbus-rtu-controllers-into-a-single-dashboard/95851 "2025-03-12T02:04:05Z")

</div>

I have several RPi's (spread out in a large building) each with an RS485 to USB adapter connected to a Modbus RTU temperature controller to read the actual temp and write the setpoint (as part of a program running in v2 …

---

## [List files local directory (file name Strings)](https://discourse.nodered.org/t/list-files-local-directory-file-name-strings/95915)

<div class="topic-metadata">

**Author:** [@itolond](https://discourse.nodered.org/u/itolond)\
**Replies:** 8\
**Last updated:** [12 March 2025 00:13 UTC](https://discourse.nodered.org/t/list-files-local-directory-file-name-strings/95915 "2025-03-12T00:13:47Z")

</div>

New to Node Red created a flow with a readdir node - debug indicates the node is picking up all the files in the directory as a complete path (all good here) What I am not sure of is how to make this a drop down (sing…

---

## [Migration to DB 2.0 charts not rendering](https://discourse.nodered.org/t/migration-to-db-2-0-charts-not-rendering/95919)

<div class="topic-metadata">

**Author:** [@WhiteLion](https://discourse.nodered.org/u/WhiteLion)\
**Replies:** 6\
**Last updated:** [11 March 2025 22:33 UTC](https://discourse.nodered.org/t/migration-to-db-2-0-charts-not-rendering/95919 "2025-03-11T22:33:39Z")

</div>

I migrated must of my stuff to DB 2.0 and now - very late - I noticed that the chart will not be rendered when the page containing the chart is not opened. I guess that was a design decision but is there no way to come a…

---

## [How to run curl command](https://discourse.nodered.org/t/how-to-run-curl-command/95930)

<div class="topic-metadata">

**Author:** [@MKaiser96](https://discourse.nodered.org/u/MKaiser96)\
**Replies:** 2\
**Last updated:** [11 March 2025 20:43 UTC](https://discourse.nodered.org/t/how-to-run-curl-command/95930 "2025-03-11T20:43:47Z")

</div>

Hello, I'm newly log my datapoints with InfluxDB. I want to create a template to delete datapoints via the InfluxDB API. There is a curl command to delete datapoints, but I don't know how to run this command in Node-RED…

---

## [Disable dropdow UI?](https://discourse.nodered.org/t/disable-dropdow-ui/95884)

<div class="topic-metadata">

**Author:** [@HaoHo1203](https://discourse.nodered.org/u/HaoHo1203)\
**Replies:** 4\
**Last updated:** [11 March 2025 16:56 UTC](https://discourse.nodered.org/t/disable-dropdow-ui/95884 "2025-03-11T16:56:28Z")

</div>

Hello, anybody know how to disable dropdown UI? For example, grayout the dropdow when a trigger comes and just release it when the trigger out. We have enable feature with button, switch but no with dropdown

---

## [FlowFuse & HiveMQ: Powering the Core Components of a Unified Namespace](https://discourse.nodered.org/t/flowfuse-hivemq-powering-the-core-components-of-a-unified-namespace/95920)

<div class="topic-metadata">

**Author:** [@sumitshinde-84](https://discourse.nodered.org/u/sumitshinde-84)\
**Replies:** 0\
**Last updated:** [11 March 2025 14:48 UTC](https://discourse.nodered.org/t/flowfuse-hivemq-powering-the-core-components-of-a-unified-namespace/95920 "2025-03-11T14:48:06Z")

</div>

:rocket: Join this webinar to learn how to use FlowFuse (Node-RED) and HiveMQ (MQTT) to build a Unified Namespace (UNS) for seamless OT/IT integration. :factory: Manufacturers often struggle with rigid architectures,…

---

## [Dashboard2/Vuetify/Icons How to use?](https://discourse.nodered.org/t/dashboard2-vuetify-icons-how-to-use/95892)

<div class="topic-metadata">

**Author:** [@gNeandr](https://discourse.nodered.org/u/gNeandr)\
**Replies:** 1\
**Last updated:** [11 March 2025 14:36 UTC](https://discourse.nodered.org/t/dashboard2-vuetify-icons-how-to-use/95892 "2025-03-11T14:36:56Z")

</div>

With Dashboard2, I'm trying to use buttons/icons based on Vuetify -- with moderate success. For example, this works: \<span style="margin-left:10px"\> \<v-icon style="cursor:pointer" …

---

## [Communication between two node-red applications](https://discourse.nodered.org/t/communication-between-two-node-red-applications/95662)

<div class="topic-metadata">

**Author:** [@joey\_ind](https://discourse.nodered.org/u/joey_ind)\
**Replies:** 8\
**Last updated:** [11 March 2025 10:02 UTC](https://discourse.nodered.org/t/communication-between-two-node-red-applications/95662 "2025-03-11T10:02:26Z")

</div>

Hi folks, I have node red applications running on two separate systems (PC). I wish to push /move data from one application to another. I tried by hooking these computers on to a VPN (zerotier) and using MQTT broker (…

---

## [Ajax request error reporting cross-domain](https://discourse.nodered.org/t/ajax-request-error-reporting-cross-domain/95914)

<div class="topic-metadata">

**Author:** [@SkyYxl](https://discourse.nodered.org/u/SkyYxl)\
**Replies:** 1\
**Last updated:** [11 March 2025 09:51 UTC](https://discourse.nodered.org/t/ajax-request-error-reporting-cross-domain/95914 "2025-03-11T09:51:53Z")

</div>

May I ask how to initiate ajax requests in the defined node? When I request, I always report cross-domain errors. The backend engineer also configured the cosr response header, but it still does not help

---

## [Unify Protect Activity to NodeRed](https://discourse.nodered.org/t/unify-protect-activity-to-nodered/95909)

<div class="topic-metadata">

**Author:** [@ebnerjoh](https://discourse.nodered.org/u/ebnerjoh)\
**Replies:** 6\
**Last updated:** [11 March 2025 09:29 UTC](https://discourse.nodered.org/t/unify-protect-activity-to-nodered/95909 "2025-03-11T09:29:46Z")

</div>

Hi, I have a Unifi Cloud Gateway MAX with an Unifi G5 Bullet Camera. Within Unifi I can get notifications if a human is recogniced. My idea is now to turn on a light in the carport, when a human is detected (and not ju…

---

## [When Cloning a Project, what is the Credentials Encryption Key](https://discourse.nodered.org/t/when-cloning-a-project-what-is-the-credentials-encryption-key/95509)

<div class="topic-metadata">

**Author:** [@IanH](https://discourse.nodered.org/u/IanH)\
**Replies:** 8\
**Last updated:** [11 March 2025 03:16 UTC](https://discourse.nodered.org/t/when-cloning-a-project-what-is-the-credentials-encryption-key/95509 "2025-03-11T03:16:35Z")

</div>

RasPi 3B+ running Bookworm, NR 4.0.8, Node 20.18.2 and Npm 10.8.2 Still building a clone of my RasPi with a virgin install of Bookworm, Node-red etc Come to cloning the existing project using git. I copied the project…

---

## [New Debug Message automatic delete after 10 sec](https://discourse.nodered.org/t/new-debug-message-automatic-delete-after-10-sec/95908)

<div class="topic-metadata">

**Author:** [@nixilb](https://discourse.nodered.org/u/nixilb)\
**Replies:** 2\
**Last updated:** [10 March 2025 16:59 UTC](https://discourse.nodered.org/t/new-debug-message-automatic-delete-after-10-sec/95908 "2025-03-10T16:59:00Z")

</div>

Using Last NR 4, new message sent with the debug node auto deletes after some seconds. It seems the whole panel gets cleared. Cannot debug anymore. See: New Debug Message automatic delete after 10 sec - Node-RED - Home…

---

## [Feature Request: Subflow with button](https://discourse.nodered.org/t/feature-request-subflow-with-button/95907)

<div class="topic-metadata">

**Author:** [@ThingsTinkerer](https://discourse.nodered.org/u/ThingsTinkerer)\
**Replies:** 0\
**Last updated:** [10 March 2025 11:49 UTC](https://discourse.nodered.org/t/feature-request-subflow-with-button/95907 "2025-03-10T11:49:51Z")

</div>

I know it's been discussed before, so this is just a reminder for something that would be super useful: In subflow, add option (toggle on/off) to have a button on the node (see inject node as example). If on, have an ad…

---

## [Nodered-ui-tabulator Calculations For Grouped Data](https://discourse.nodered.org/t/nodered-ui-tabulator-calculations-for-grouped-data/95855)

<div class="topic-metadata">

**Author:** [@SergioRT](https://discourse.nodered.org/u/SergioRT)\
**Replies:** 3\
**Last updated:** [10 March 2025 10:15 UTC](https://discourse.nodered.org/t/nodered-ui-tabulator-calculations-for-grouped-data/95855 "2025-03-10T10:15:54Z")

</div>

As you can see below, I have two levels of grouping data The calculation is right for the second level but not for the first level. Any idea Thanks in advance

---

## [Running node red on a headless raspberry pi5](https://discourse.nodered.org/t/running-node-red-on-a-headless-raspberry-pi5/95891)

<div class="topic-metadata">

**Author:** [@invictagunner](https://discourse.nodered.org/u/invictagunner)\
**Replies:** 5\
**Last updated:** [10 March 2025 09:46 UTC](https://discourse.nodered.org/t/running-node-red-on-a-headless-raspberry-pi5/95891 "2025-03-10T09:46:23Z")

</div>

I have, with help, successfully transferred my NR project from windows to a headless raspberry pi5, but started Node-Red from a putty session on windows. Will node red be stopped if I close the putty session? If so can a…

---

## [Message Tracing/Debug On Per Message Basis](https://discourse.nodered.org/t/message-tracing-debug-on-per-message-basis/95880)

<div class="topic-metadata">

**Author:** [@CanyonCasa](https://discourse.nodered.org/u/CanyonCasa)\
**Replies:** 3\
**Last updated:** [10 March 2025 07:57 UTC](https://discourse.nodered.org/t/message-tracing-debug-on-per-message-basis/95880 "2025-03-10T07:57:03Z")

</div>

I have a number of flows that generate a lot of traffic. Just enabling the debug nodes on a given path can output an overwhelming amount of data making it extremely difficult to follow a specific message through the syst…

---

## [Copy \<td\> text from table in Ui Template on click](https://discourse.nodered.org/t/copy-td-text-from-table-in-ui-template-on-click/95890)

<div class="topic-metadata">

**Author:** [@Mick](https://discourse.nodered.org/u/Mick)\
**Replies:** 2\
**Last updated:** [9 March 2025 21:52 UTC](https://discourse.nodered.org/t/copy-td-text-from-table-in-ui-template-on-click/95890 "2025-03-09T21:52:28Z")

</div>

I am trying to get my code to copy a value from text and am using Dashboard V1. When I run the flow I get the following error in the console: 'Uncaught TypeError: Cannot read properties of undefined (reading 'writeT…

---

## [REST API Node POST for ETA SH heating system](https://discourse.nodered.org/t/rest-api-node-post-for-eta-sh-heating-system/95862)

<div class="topic-metadata">

**Author:** [@bindpe](https://discourse.nodered.org/u/bindpe)\
**Replies:** 3\
**Last updated:** [9 March 2025 17:44 UTC](https://discourse.nodered.org/t/rest-api-node-post-for-eta-sh-heating-system/95862 "2025-03-09T17:44:46Z")

</div>

Deare can anyone help me please I want to set an Value on my ETA Touch heating system, via Rest api with; (http://192.168.178.22:8080/user/var//120/10281/0/0/12080) i get this value 1802 how must look the flow to…

---

## [Help with listing mongoDB collections](https://discourse.nodered.org/t/help-with-listing-mongodb-collections/95886)

<div class="topic-metadata">

**Author:** [@Joaovitor](https://discourse.nodered.org/u/Joaovitor)\
**Replies:** 1\
**Last updated:** [9 March 2025 15:04 UTC](https://discourse.nodered.org/t/help-with-listing-mongodb-collections/95886 "2025-03-09T15:04:54Z")

</div>

I am writing code for a small administrative database. One of the things I need from the database is the ability to list existing collections and list them in checkboxes. However, I am unable to do this. Attached is the …

[Previous page](https://discourse.nodered.org/latest.md?no_subcategories=false&page=91)

[Next page](https://discourse.nodered.org/latest.md?no_subcategories=false&page=93)