# Latest

**URL:** https://discourse.nodered.org/latest.md?no_subcategories=false&page=93

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

**Page:** 94

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## [Nodes become unresponsive after a while](https://discourse.nodered.org/t/nodes-become-unresponsive-after-a-while/95847)

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**Author:** [@vie5i](https://discourse.nodered.org/u/vie5i)\
**Replies:** 3\
**Last updated:** [8 March 2025 20:28 UTC](https://discourse.nodered.org/t/nodes-become-unresponsive-after-a-while/95847 "2025-03-08T20:28:20Z")

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After a few hours of normal operation I've noticed since v4.08 the nodes become unresponsive. They do not send messages through. I don't see anything wrong. I can modify and deploy the software but when I send a comma…

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## [How to use a markdown node to display string coming from input?](https://discourse.nodered.org/t/how-to-use-a-markdown-node-to-display-string-coming-from-input/95874)

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**Author:** [@WhiteLion](https://discourse.nodered.org/u/WhiteLion)\
**Replies:** 4\
**Last updated:** [8 March 2025 16:51 UTC](https://discourse.nodered.org/t/how-to-use-a-markdown-node-to-display-string-coming-from-input/95874 "2025-03-08T16:51:56Z")

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Hi there, I just want to use the Markdown node for displaying things. As a start, I'm trying to use an Injection node to display a string after triggering. However, it's not working. Do you have any ideas about that? Th…

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## [InfluxDB v2, how to combine multiple queries to show in one graph](https://discourse.nodered.org/t/influxdb-v2-how-to-combine-multiple-queries-to-show-in-one-graph/95778)

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**Author:** [@cameo69](https://discourse.nodered.org/u/cameo69)\
**Replies:** 6\
**Last updated:** [8 March 2025 12:46 UTC](https://discourse.nodered.org/t/influxdb-v2-how-to-combine-multiple-queries-to-show-in-one-graph/95778 "2025-03-08T12:46:59Z")

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Hi, could I get some help with InfluxDB Queries for V2? I used to use Influx v1.8 and am now trying to migrate to v2, but retrieving multiple time series in one go, like I did before, does not work right now. Retrievi…

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## [Flow to Mermaid Diagram](https://discourse.nodered.org/t/flow-to-mermaid-diagram/95871)

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**Author:** [@SandeepA](https://discourse.nodered.org/u/SandeepA)\
**Replies:** 2\
**Last updated:** [8 March 2025 11:02 UTC](https://discourse.nodered.org/t/flow-to-mermaid-diagram/95871 "2025-03-08T11:02:24Z")

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Hi I found this amazing link. Installed and tinkered with it - and works gives very good results. Have asked the author - if this can be converted into a standard node. It takes input as flow json (for a tab) and g…

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## [Web Server - for my customers?](https://discourse.nodered.org/t/web-server-for-my-customers/95828)

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**Author:** [@damica51](https://discourse.nodered.org/u/damica51)\
**Replies:** 6\
**Last updated:** [8 March 2025 10:17 UTC](https://discourse.nodered.org/t/web-server-for-my-customers/95828 "2025-03-08T10:17:31Z")

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Hello: I'm looking for suggestion on how I need to get this done. I have a new project and this is what I need to make happen. I'm using Mqtt as my communication protocol. So this is what I'm doing. I have a job that…

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## [Write token in http request function via dashboard](https://discourse.nodered.org/t/write-token-in-http-request-function-via-dashboard/95800)

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**Author:** [@pattrp](https://discourse.nodered.org/u/pattrp)\
**Replies:** 8\
**Last updated:** [8 March 2025 09:45 UTC](https://discourse.nodered.org/t/write-token-in-http-request-function-via-dashboard/95800 "2025-03-08T09:45:00Z")

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I want to change token in http request function via node red dashboard, it's like I write a new token through the dashboard and it changes in the flow. It can or cannot? How? please help me

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## [JSONata evaluate expression inside function node is returning empty object at debug window](https://discourse.nodered.org/t/jsonata-evaluate-expression-inside-function-node-is-returning-empty-object-at-debug-window/95834)

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**Author:** [@shubhamnodered](https://discourse.nodered.org/u/shubhamnodered)\
**Replies:** 20\
**Last updated:** [8 March 2025 09:07 UTC](https://discourse.nodered.org/t/jsonata-evaluate-expression-inside-function-node-is-returning-empty-object-at-debug-window/95834 "2025-03-08T09:07:08Z")

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Hi, I can work with JSONATA expression with inject node and change node fine but I'm facing an issue while working with JSONata inside the Function node. When I use JSONATA's .evaluate() method, i get empty object at t…

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## [Unable to use - node-red-dashboard-2-ui-flowviewer](https://discourse.nodered.org/t/unable-to-use-node-red-dashboard-2-ui-flowviewer/95821)

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**Author:** [@SandeepA](https://discourse.nodered.org/u/SandeepA)\
**Replies:** 3\
**Last updated:** [8 March 2025 07:35 UTC](https://discourse.nodered.org/t/unable-to-use-node-red-dashboard-2-ui-flowviewer/95821 "2025-03-08T07:35:46Z")

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Hi - I see a new node released I have successfully managed to install it. I took one of my existing flows.json and sent it via. msg.ui\_update.flow I took one of the flows into a json and sent it via. msg.ui\_update.fl…

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## [Handling variables through the flow](https://discourse.nodered.org/t/handling-variables-through-the-flow/95816)

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**Author:** [@WDL](https://discourse.nodered.org/u/WDL)\
**Replies:** 13\
**Last updated:** [7 March 2025 19:51 UTC](https://discourse.nodered.org/t/handling-variables-through-the-flow/95816 "2025-03-07T19:51:41Z")

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Hi, Am new here, have had a search but forgive me if this has been asked before but could not find the answer. Have installed NodeRed on a Pi that will be receiving data from a GPIO connected RF hat device, the data co…

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## [Controlling switches using UDP and manual operation](https://discourse.nodered.org/t/controlling-switches-using-udp-and-manual-operation/95848)

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**Author:** [@TBL](https://discourse.nodered.org/u/TBL)\
**Replies:** 3\
**Last updated:** [7 March 2025 17:15 UTC](https://discourse.nodered.org/t/controlling-switches-using-udp-and-manual-operation/95848 "2025-03-07T17:15:37Z")

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Hello eveyone. I am struggeling creating the proper flow for my project. I have tried using the GitHub AI to help, but it is taking forever to create a proper flow. This is what I am trying to do: I have more than 10…

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## [Accessing environment details from a Node-red flow](https://discourse.nodered.org/t/accessing-environment-details-from-a-node-red-flow/95807)

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**Author:** [@jbudd](https://discourse.nodered.org/u/jbudd)\
**Replies:** 8\
**Last updated:** [7 March 2025 10:25 UTC](https://discourse.nodered.org/t/accessing-environment-details-from-a-node-red-flow/95807 "2025-03-07T10:25:37Z")

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The node-red usage message (on Linux) shows that you can specify various runtime settings (irrelevant options removed from example): node-red --help Node-RED v4.0.9 Usage: node-red \[--settings settings.js\] \[--userDir DI…

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## [Using dashboard chart node but chart label is set but disappers?](https://discourse.nodered.org/t/using-dashboard-chart-node-but-chart-label-is-set-but-disappers/95833)

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**Author:** [@Jibun-no-Kage](https://discourse.nodered.org/u/Jibun-no-Kage)\
**Replies:** 1\
**Last updated:** [7 March 2025 08:33 UTC](https://discourse.nodered.org/t/using-dashboard-chart-node-but-chart-label-is-set-but-disappers/95833 "2025-03-07T08:33:52Z")

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OK, this issue has me wondering! I am sending two series to a dashboard chart node, that is working just fine, I happen to be enabling the legend, that is fine. But as part of the msg object I am also sending a propert…

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## [Messed up dashboard layout](https://discourse.nodered.org/t/messed-up-dashboard-layout/95824)

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**Author:** [@MichelDeMeester](https://discourse.nodered.org/u/MichelDeMeester)\
**Replies:** 4\
**Last updated:** [7 March 2025 06:47 UTC](https://discourse.nodered.org/t/messed-up-dashboard-layout/95824 "2025-03-07T06:47:26Z")

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Hello All, Sorry for writing in "Bad English". I have 2 flows with a "messed up dashboard", they were just working fine till now. One Node Red is running locally on a Raspberry Pi, the other is running on a free Ubunt…

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## [Knowing if MQTT IN or OUT are connected?](https://discourse.nodered.org/t/knowing-if-mqtt-in-or-out-are-connected/95802)

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**Author:** [@greengolfer](https://discourse.nodered.org/u/greengolfer)\
**Replies:** 15\
**Last updated:** [6 March 2025 21:30 UTC](https://discourse.nodered.org/t/knowing-if-mqtt-in-or-out-are-connected/95802 "2025-03-06T21:30:27Z")

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Hello, Is there a way to get the information when needed on whether the MQTT IN or OUT node is effectively connected ? I know about the status node, however, the value is changed only when an "event" (connection, disco…

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## [Moving Node Red project to Raspberry pi 5 - cannot connect to broker](https://discourse.nodered.org/t/moving-node-red-project-to-raspberry-pi-5-cannot-connect-to-broker/95822)

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**Author:** [@invictagunner](https://discourse.nodered.org/u/invictagunner)\
**Replies:** 5\
**Last updated:** [6 March 2025 15:38 UTC](https://discourse.nodered.org/t/moving-node-red-project-to-raspberry-pi-5-cannot-connect-to-broker/95822 "2025-03-06T15:38:57Z")

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I am using EMQX broker with connection information as follows:- MQTT Connection Information Address:xxxxxxxxxxxxxxxx.emqxsl.com MQTT over TLS/SSL Port:8883 WebSocket over TLS/SSL Port:8084 CA Certificate:CA Certificate…

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## [Inject dynamic variables in s7 nodes](https://discourse.nodered.org/t/inject-dynamic-variables-in-s7-nodes/95536)

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**Author:** [@MystiiK](https://discourse.nodered.org/u/MystiiK)\
**Replies:** 7\
**Last updated:** [6 March 2025 15:35 UTC](https://discourse.nodered.org/t/inject-dynamic-variables-in-s7-nodes/95536 "2025-03-06T15:35:18Z")

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Hello, I created a flow that read PLC data with the s7 library. I would like to read the chamber configuration (ip, port, timeout and reading cycle) from a file and then inject those values in the s7 In node, rather th…

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## [Handling database connections](https://discourse.nodered.org/t/handling-database-connections/95823)

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**Author:** [@WDL](https://discourse.nodered.org/u/WDL)\
**Replies:** 1\
**Last updated:** [6 March 2025 15:10 UTC](https://discourse.nodered.org/t/handling-database-connections/95823 "2025-03-06T15:10:38Z")

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Hi, I am performing MySQL database updates from several Nodes, just wondering if there is any advantage in how this is handled in terms of speed and queuing of tasks. There could end up being a few dozen update nodes w…

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## [Configure Secure Node-Red basically](https://discourse.nodered.org/t/configure-secure-node-red-basically/95653)

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**Author:** [@muksidin](https://discourse.nodered.org/u/muksidin)\
**Replies:** 7\
**Last updated:** [6 March 2025 14:50 UTC](https://discourse.nodered.org/t/configure-secure-node-red-basically/95653 "2025-03-06T14:50:07Z")

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Hello, i am new in node-red. So for basic security, i imagine for node-red dashboard make public without password and for node-red editor make secured by enable user and password login. Is it possible to make this. Tha…

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## [Node creating new message, so losing properties](https://discourse.nodered.org/t/node-creating-new-message-so-losing-properties/95827)

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**Author:** [@mayswekkie](https://discourse.nodered.org/u/mayswekkie)\
**Replies:** 2\
**Last updated:** [6 March 2025 14:13 UTC](https://discourse.nodered.org/t/node-creating-new-message-so-losing-properties/95827 "2025-03-06T14:13:44Z")

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Hey all I want to use the node-red-contrib-opcua module to read multiple tags at once using the opc ua client node (action: READ MULTIPLE). The problem with this node is that for this action it constructs a new msg inst…

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## [How start node-red without any flows running?](https://discourse.nodered.org/t/how-start-node-red-without-any-flows-running/95819)

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**Author:** [@Jibun-no-Kage](https://discourse.nodered.org/u/Jibun-no-Kage)\
**Replies:** 3\
**Last updated:** [6 March 2025 10:06 UTC](https://discourse.nodered.org/t/how-start-node-red-without-any-flows-running/95819 "2025-03-06T10:06:12Z")

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How start node-red without any flows running? Have a module that is generating uncaught exception, and it keeps crashing node-red. The issue is module has a bad parameter setting, but since the flow keeps running when …

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## [Dashbord 2 ui-notification with input dialog](https://discourse.nodered.org/t/dashbord-2-ui-notification-with-input-dialog/95801)

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**Author:** [@aitor](https://discourse.nodered.org/u/aitor)\
**Replies:** 7\
**Last updated:** [6 March 2025 09:01 UTC](https://discourse.nodered.org/t/dashbord-2-ui-notification-with-input-dialog/95801 "2025-03-06T09:01:09Z")

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Hi. l'd like to use node-red-dashboard's ui-notification with input dialog in dashboard 2.0. Apparently, in dashboard-2 there is no configuration to do so. Any idea how could I achieve it? I can add some raw HTML/JS in…

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## [Modbus and Kohler RDC2 controller](https://discourse.nodered.org/t/modbus-and-kohler-rdc2-controller/95820)

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**Author:** [@k5map](https://discourse.nodered.org/u/k5map)\
**Replies:** 1\
**Last updated:** [6 March 2025 07:29 UTC](https://discourse.nodered.org/t/modbus-and-kohler-rdc2-controller/95820 "2025-03-06T07:29:45Z")

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Has anyone successfully used one of the Modbus nodes and communicated to a Kohler RDC2 controller over TCP?

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## [GPIO not working, indicates "OK" (yellow)](https://discourse.nodered.org/t/gpio-not-working-indicates-ok-yellow/95755)

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**Author:** [@StrongTown](https://discourse.nodered.org/u/StrongTown)\
**Replies:** 44\
**Last updated:** [5 March 2025 23:21 UTC](https://discourse.nodered.org/t/gpio-not-working-indicates-ok-yellow/95755 "2025-03-05T23:21:49Z")

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So I decided to upgrade my project from rPi3 & Bullseye (11) to rPi4 & Bookworm (12). As most can imagine this was a major effort as I had to also reinstall the (proprietary) text to speech software and many other requir…

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## [Variable amount of requests (hasNext)](https://discourse.nodered.org/t/variable-amount-of-requests-hasnext/95806)

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**Author:** [@ThingsTinkerer](https://discourse.nodered.org/u/ThingsTinkerer)\
**Replies:** 1\
**Last updated:** [5 March 2025 15:51 UTC](https://discourse.nodered.org/t/variable-amount-of-requests-hasnext/95806 "2025-03-05T15:51:26Z")

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I need some help figuring out a clean way to handle variable number of http requests. Working with thingsboard API, they use pagination: async getMainElectricMeterDevices() { const mainElectricMeterProfileId = "…

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## [NR runs on wrong time zone](https://discourse.nodered.org/t/nr-runs-on-wrong-time-zone/95593)

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**Author:** [@ruffieuxh](https://discourse.nodered.org/u/ruffieuxh)\
**Replies:** 24\
**Last updated:** [5 March 2025 15:45 UTC](https://discourse.nodered.org/t/nr-runs-on-wrong-time-zone/95593 "2025-03-05T15:45:37Z")

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Hi, My node-red installation seems to run on UTC/GMT time zone, but should run on GMT+1. In a function node, new Date() returns UTC time, I would expect the time for my timezone. Also a call like new Date("2025-02-23T…

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## [Node Red AEDES MQTT Broker Question](https://discourse.nodered.org/t/node-red-aedes-mqtt-broker-question/95733)

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**Author:** [@Jeffro](https://discourse.nodered.org/u/Jeffro)\
**Replies:** 25\
**Last updated:** [5 March 2025 06:11 UTC](https://discourse.nodered.org/t/node-red-aedes-mqtt-broker-question/95733 "2025-03-05T06:11:13Z")

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Hello! I am trying to make an escape room bomb prop, similar to what Alastair Aitchison created in this video: Google Search Since this video was created in 2020, the issue I am running into is that the original Node …

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## [OPC Communication](https://discourse.nodered.org/t/opc-communication/95789)

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**Author:** [@Mysmoo](https://discourse.nodered.org/u/Mysmoo)\
**Replies:** 22\
**Last updated:** [5 March 2025 11:36 UTC](https://discourse.nodered.org/t/opc-communication/95789 "2025-03-05T11:36:26Z")

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Hey, I am new to Node-Red and trying to learn. What i am trying to do is read 6 signals from the OPC. I send then with a Join block and read them out in array. Code looks like this after the Join block: let msg1 = {}…

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## [How can I configure a Modbus TCP client node in Node-RED to listen for incoming connections? Once the connection is established, I would like the client to start polling data](https://discourse.nodered.org/t/how-can-i-configure-a-modbus-tcp-client-node-in-node-red-to-listen-for-incoming-connections-once-the-connection-is-established-i-would-like-the-client-to-start-polling-data/94402)

<div class="topic-metadata">

**Author:** [@kpkpkalpesh](https://discourse.nodered.org/u/kpkpkalpesh)\
**Replies:** 7\
**Last updated:** [5 March 2025 08:48 UTC](https://discourse.nodered.org/t/how-can-i-configure-a-modbus-tcp-client-node-in-node-red-to-listen-for-incoming-connections-once-the-connection-is-established-i-would-like-the-client-to-start-polling-data/94402 "2025-03-05T08:48:22Z")

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I want the node red Modbus client to listen on port . Once my Modbus device is powered up, it should automatically connect to the node red Modbus client using the node red IP address and the port. After the device is con…

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## [Recent update to Debian install script](https://discourse.nodered.org/t/recent-update-to-debian-install-script/95565)

<div class="topic-metadata">

**Author:** [@jbudd](https://discourse.nodered.org/u/jbudd)\
**Replies:** 6\
**Last updated:** [5 March 2025 00:46 UTC](https://discourse.nodered.org/t/recent-update-to-debian-install-script/95565 "2025-03-05T00:46:37Z")

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Background The additional security recommendations at the end of the installation script now look like this The script now automatically runs node-red admin init and then sets ownership of settings.js to root:root (0…

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## [An example of a Mobile App written in Node-RED Dashboard 2.0](https://discourse.nodered.org/t/an-example-of-a-mobile-app-written-in-node-red-dashboard-2-0/95624)

<div class="topic-metadata">

**Author:** [@Tim99](https://discourse.nodered.org/u/Tim99)\
**Replies:** 33\
**Last updated:** [4 March 2025 17:25 UTC](https://discourse.nodered.org/t/an-example-of-a-mobile-app-written-in-node-red-dashboard-2-0/95624 "2025-03-04T17:25:34Z")

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INTRODUCTION The main focus of Dashboard 2.0 is rightly, developing dashboards, however I was intrigued to see if it was possible to develop a mobile app using Node-RED and the Dashboard 2.0 nodes. Below are details of…

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