# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=54

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

**Page:** 55

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## [Global.get fails while using contextStorage(redis)](https://discourse.nodered.org/t/global-get-fails-while-using-contextstorage-redis/95183)

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**Author:** [@jakonnode](https://discourse.nodered.org/u/jakonnode)\
**Replies:** 2\
**Last updated:** [6 February 2025 14:40 UTC](https://discourse.nodered.org/t/global-get-fails-while-using-contextstorage-redis/95183 "2025-02-06T14:40:08Z")

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While using redis contextStorage as default and use global.get() it results in an error as below. "Error: Callback must be a function" Using the below redis package. GitHub - node-red/node-red-context-redis: A Node-RE…

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## [Using LMS111-10100 sensor](https://discourse.nodered.org/t/using-lms111-10100-sensor/95180)

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**Author:** [@Jedisith888](https://discourse.nodered.org/u/Jedisith888)\
**Replies:** 3\
**Last updated:** [6 February 2025 13:40 UTC](https://discourse.nodered.org/t/using-lms111-10100-sensor/95180 "2025-02-06T13:40:40Z")

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Hello im in a project about using LMS111-10100 sensor i just want to know if i can use Node-RED to work with the sensor, cause we are trying differents programs and code lenguages, and find the better to do the project.

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## [Trigger a flow from other flow (instead of polling)](https://discourse.nodered.org/t/trigger-a-flow-from-other-flow-instead-of-polling/95177)

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**Author:** [@node\_red2025](https://discourse.nodered.org/u/node_red2025)\
**Replies:** 2\
**Last updated:** [6 February 2025 11:19 UTC](https://discourse.nodered.org/t/trigger-a-flow-from-other-flow-instead-of-polling/95177 "2025-02-06T11:19:42Z")

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In Flow 1 I have a function which calculates stuff and then returns a msg with some content. msg.payload = 2; msg.text = "State 10 reached"; return msg; In the second flow I have a periodic trigger which checks the …

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## [UIBuilder, latest version and webkitSpeechRecognition()](https://discourse.nodered.org/t/uibuilder-latest-version-and-webkitspeechrecognition/95171)

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**Author:** [@micksta](https://discourse.nodered.org/u/micksta)\
**Replies:** 1\
**Last updated:** [6 February 2025 09:19 UTC](https://discourse.nodered.org/t/uibuilder-latest-version-and-webkitspeechrecognition/95171 "2025-02-06T09:19:35Z")

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A very green noob. What i am wondering before i begin my node-red journey, if the below is also quite possible to implement using UIBuilder. It look's (UIBuilder) like an initial steep learning curve vs Dashboard, but wo…

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## [Rest API response question](https://discourse.nodered.org/t/rest-api-response-question/95144)

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**Author:** [@BH-HomeAssistant](https://discourse.nodered.org/u/BH-HomeAssistant)\
**Replies:** 9\
**Last updated:** [6 February 2025 08:12 UTC](https://discourse.nodered.org/t/rest-api-response-question/95144 "2025-02-06T08:12:10Z")

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Hi folks, I try to build a dashboard of sensors / values within Node Red. I tested the GET call in Insomnia: As you can see, I receive the response with all the values I need. So I tried to do the same in Node Red: …

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## [Introducing the "Node-RED Academy" (built by FlowFuse)](https://discourse.nodered.org/t/introducing-the-node-red-academy-built-by-flowfuse/95143)

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**Author:** [@joepavitt](https://discourse.nodered.org/u/joepavitt)\
**Replies:** 7\
**Last updated:** [6 February 2025 06:59 UTC](https://discourse.nodered.org/t/introducing-the-node-red-academy-built-by-flowfuse/95143 "2025-02-06T06:59:49Z")

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The team at FlowFuse have been hard at work putting together the Node-RED Academy. This will be a collection of courses that cover everything you need to know from Node-RED Fundamentals through to building full system…

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## [Loop a subflow to produce an array of values](https://discourse.nodered.org/t/loop-a-subflow-to-produce-an-array-of-values/95098)

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**Author:** [@WarrenL](https://discourse.nodered.org/u/WarrenL)\
**Replies:** 6\
**Last updated:** [6 February 2025 01:07 UTC](https://discourse.nodered.org/t/loop-a-subflow-to-produce-an-array-of-values/95098 "2025-02-06T01:07:53Z")

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Hi everybody, I'm quite new to Node-RED and, being a novice programmer, I only know some very basic Javascript. I have created a sub-flow which reads a particular property (a bit value) in a BACnet object. I have creat…

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## [Need to lock off this node from being clicked until a command is sent to it](https://discourse.nodered.org/t/need-to-lock-off-this-node-from-being-clicked-until-a-command-is-sent-to-it/95123)

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**Author:** [@Technogeek](https://discourse.nodered.org/u/Technogeek)\
**Replies:** 2\
**Last updated:** [5 February 2025 21:39 UTC](https://discourse.nodered.org/t/need-to-lock-off-this-node-from-being-clicked-until-a-command-is-sent-to-it/95123 "2025-02-05T21:39:01Z")

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I'm using this really cool node, node-red-contrib-ui-button\_state by \* haydendonald and I would like to be able to send a command to it to stop any clicks from being recognized until an unlock command is received. Here's…

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## [Node-red not showing full on server. But no issue on client access](https://discourse.nodered.org/t/node-red-not-showing-full-on-server-but-no-issue-on-client-access/95151)

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**Author:** [@engzr](https://discourse.nodered.org/u/engzr)\
**Replies:** 2\
**Last updated:** [5 February 2025 19:30 UTC](https://discourse.nodered.org/t/node-red-not-showing-full-on-server-but-no-issue-on-client-access/95151 "2025-02-05T19:30:18Z")

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Hi I have been programming my node red hosted on my orange pi. The program and flow is running fine. But when I connect my pi to a display the browser cannot display node-red in full. Only come out with the banner. Wh…

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## [Nested packaged subflow not taking config node propery](https://discourse.nodered.org/t/nested-packaged-subflow-not-taking-config-node-propery/95160)

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**Author:** [@Colin.Smith1205](https://discourse.nodered.org/u/Colin.Smith1205)\
**Replies:** 0\
**Last updated:** [5 February 2025 18:46 UTC](https://discourse.nodered.org/t/nested-packaged-subflow-not-taking-config-node-propery/95160 "2025-02-05T18:46:55Z")

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Hello, For a project I have made some subflows that were packaged following the processes found here: Packaging a Subflow as a module : Node-RED The nodes work as expected, one of the subflow properties that I use is a …

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## [Node-red flow for temperature reading](https://discourse.nodered.org/t/node-red-flow-for-temperature-reading/95146)

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**Author:** [@ninad](https://discourse.nodered.org/u/ninad)\
**Replies:** 1\
**Last updated:** [5 February 2025 11:11 UTC](https://discourse.nodered.org/t/node-red-flow-for-temperature-reading/95146 "2025-02-05T11:11:05Z")

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connected a digital controller which is connected to PT100 temp. sensor, The controller in then connected to RS485 converted to USB, THE USB IS CONNECTED TO REVOLUTION PI CONNECT S Now I am trying to data log the tempe…

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## [Trouble getting the results of a looped subflow to write into an array](https://discourse.nodered.org/t/trouble-getting-the-results-of-a-looped-subflow-to-write-into-an-array/95134)

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**Author:** [@WarrenL](https://discourse.nodered.org/u/WarrenL)\
**Replies:** 3\
**Last updated:** [5 February 2025 08:52 UTC](https://discourse.nodered.org/t/trouble-getting-the-results-of-a-looped-subflow-to-write-into-an-array/95134 "2025-02-05T08:52:30Z")

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Hi all, With help from ChatGPT I've created a function node that loops a subflow which reads the present value of a BACnet point. With my function node looping four times, a debug on the output of the subflow shows the …

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## [SQL Issue inserting a record in a database](https://discourse.nodered.org/t/sql-issue-inserting-a-record-in-a-database/95114)

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**Author:** [@BartZ](https://discourse.nodered.org/u/BartZ)\
**Replies:** 7\
**Last updated:** [5 February 2025 09:15 UTC](https://discourse.nodered.org/t/sql-issue-inserting-a-record-in-a-database/95114 "2025-02-05T09:15:58Z")

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Hi All, Completly new to Node Red (latest version, just installed) but understand the working. It's a nice development environment but one can get vague error messages Like this one: "Error: You have an error in your S…

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## [Running Node-RED 24/7/365](https://discourse.nodered.org/t/running-node-red-24-7-365/95121)

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**Author:** [@nago93](https://discourse.nodered.org/u/nago93)\
**Replies:** 4\
**Last updated:** [5 February 2025 04:24 UTC](https://discourse.nodered.org/t/running-node-red-24-7-365/95121 "2025-02-05T04:24:51Z")

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Hi, Im conceptualizing a controller, to manage a industrial battery, in order to dispatch it in high peak demand depending of the solar generation. This is an aplication that should be running 24/7/365, All the communic…

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## [Problems when starting the node red](https://discourse.nodered.org/t/problems-when-starting-the-node-red/95115)

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**Author:** [@amospinamo](https://discourse.nodered.org/u/amospinamo)\
**Replies:** 6\
**Last updated:** [4 February 2025 20:17 UTC](https://discourse.nodered.org/t/problems-when-starting-the-node-red/95115 "2025-02-04T20:17:21Z")

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I have NODE RED version 22.13.1 installed on Windows 10, when I try to run it in the windows editor, I get the following message: What can it be?

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## [MQTT Node exhibits instability](https://discourse.nodered.org/t/mqtt-node-exhibits-instability/95036)

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**Author:** [@pinode](https://discourse.nodered.org/u/pinode)\
**Replies:** 69\
**Last updated:** [4 February 2025 16:26 UTC](https://discourse.nodered.org/t/mqtt-node-exhibits-instability/95036 "2025-02-04T16:26:30Z")

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I'm having what appears to be stability problems with the MQTT\_out node. I have two issues: My flow appears to work and then at some point it loses connectivity (the green indicator turns red) and of course the flow ce…

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## [How can I present a daily variable in a bar chart for each day for 1 month](https://discourse.nodered.org/t/how-can-i-present-a-daily-variable-in-a-bar-chart-for-each-day-for-1-month/95104)

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**Author:** [@Olaa](https://discourse.nodered.org/u/Olaa)\
**Replies:** 5\
**Last updated:** [4 February 2025 15:26 UTC](https://discourse.nodered.org/t/how-can-i-present-a-daily-variable-in-a-bar-chart-for-each-day-for-1-month/95104 "2025-02-04T15:26:10Z")

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I use Watt2kwh. I store its metrics in a variable, "energyVal" until at 24:00 when everything is reset and starts over. How can I present the "energyVal" variable in a bar chart for each day for 1 month. thanks for th…

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## [Help in Function Node - Applying different css class based on contents (start letter)](https://discourse.nodered.org/t/help-in-function-node-applying-different-css-class-based-on-contents-start-letter/95105)

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**Author:** [@smanjunath211](https://discourse.nodered.org/u/smanjunath211)\
**Replies:** 0\
**Last updated:** [4 February 2025 11:52 UTC](https://discourse.nodered.org/t/help-in-function-node-applying-different-css-class-based-on-contents-start-letter/95105 "2025-02-04T11:52:40Z")

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Continuing the discussion from Help in Function Node - Dynamic Table properties (CSV to HTML): Hi, @bakman2 You were helpful in getting me going in this topic. it is working fine now, it is required to apply another c…

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## [NodeRED crashing due to "Javascript out of heap memory" issue](https://discourse.nodered.org/t/nodered-crashing-due-to-javascript-out-of-heap-memory-issue/94970)

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**Author:** [@YuktarthTrehan](https://discourse.nodered.org/u/YuktarthTrehan)\
**Replies:** 21\
**Last updated:** [4 February 2025 07:48 UTC](https://discourse.nodered.org/t/nodered-crashing-due-to-javascript-out-of-heap-memory-issue/94970 "2025-02-04T07:48:23Z")

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Hi there. I have been constantly getting "Javascript out of heap memory" error due to which the nodered is crashing, resulting in data loss. I have tried allocating 8gb memory to it with the command: docker run -it -p 1…

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## [Node red telegram bot issue](https://discourse.nodered.org/t/node-red-telegram-bot-issue/95066)

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**Author:** [@mambo](https://discourse.nodered.org/u/mambo)\
**Replies:** 5\
**Last updated:** [4 February 2025 05:37 UTC](https://discourse.nodered.org/t/node-red-telegram-bot-issue/95066 "2025-02-04T05:37:29Z")

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Am using the node-red-contrib-telegrambot in node red to work with home assistant. I had this working for few days and now I just can't get it to work. I have a very simple flow to test my command and every time I send…

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## [Is there an issue with the reliability of Pi GPIO nodes and the raspberry pi 5?](https://discourse.nodered.org/t/is-there-an-issue-with-the-reliability-of-pi-gpio-nodes-and-the-raspberry-pi-5/95058)

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**Author:** [@Media250](https://discourse.nodered.org/u/Media250)\
**Replies:** 5\
**Last updated:** [4 February 2025 02:08 UTC](https://discourse.nodered.org/t/is-there-an-issue-with-the-reliability-of-pi-gpio-nodes-and-the-raspberry-pi-5/95058 "2025-02-04T02:08:34Z")

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I'm having an issue with multiple raspberry pi 5's where the GPIO inputs are not recognized reliably after editing/deploying a flow a few times. The inputs are switches tied between the GPIO pins and GND, with the GPIO p…

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## [Modbus result = 32752](https://discourse.nodered.org/t/modbus-result-32752/95091)

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**Author:** [@jupiter8](https://discourse.nodered.org/u/jupiter8)\
**Replies:** 5\
**Last updated:** [3 February 2025 21:38 UTC](https://discourse.nodered.org/t/modbus-result-32752/95091 "2025-02-03T21:38:18Z")

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Hi, I have a kohler apm 402 generator controller and i successfully connected to it with the node-red-contrib-modbus What is stange is that i get correct readings when i shift all registers from 1. Like i get the fuel…

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## [Function node context, debug when accessing properties instead of getter/setter?](https://discourse.nodered.org/t/function-node-context-debug-when-accessing-properties-instead-of-getter-setter/95075)

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**Author:** [@ThingsTinkerer](https://discourse.nodered.org/u/ThingsTinkerer)\
**Replies:** 7\
**Last updated:** [3 February 2025 19:44 UTC](https://discourse.nodered.org/t/function-node-context-debug-when-accessing-properties-instead-of-getter-setter/95075 "2025-02-03T19:44:13Z")

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Interested in the distinction between context.foo and context.get("foo")/context.set("foo", bar). I thought they were equivalent if not identical. But I can't see context values in sidebar when accessing properties direc…

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## [Basic Javascript Function concatenation \[SOLVED\]](https://discourse.nodered.org/t/basic-javascript-function-concatenation-solved/95090)

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**Author:** [@vongomben](https://discourse.nodered.org/u/vongomben)\
**Replies:** 2\
**Last updated:** [3 February 2025 14:59 UTC](https://discourse.nodered.org/t/basic-javascript-function-concatenation-solved/95090 "2025-02-03T14:59:55Z")

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Hi. I'm struggling in understand what's wrong in this concatenation. I'm failin in concatenate this object\[1\], using this function\[2\]. Nothing is coming out. Thanks in advance for your answer. This is the code \[1\] …

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## [Very small alignment differences](https://discourse.nodered.org/t/very-small-alignment-differences/95088)

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**Author:** [@ThingsTinkerer](https://discourse.nodered.org/u/ThingsTinkerer)\
**Replies:** 0\
**Last updated:** [3 February 2025 12:56 UTC](https://discourse.nodered.org/t/very-small-alignment-differences/95088 "2025-02-03T12:56:13Z")

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When working on node red with project mode and multiple users, sometimes I see nodes aligned differently than others. Checking .config.users.json, we all have same view-grid-size of 20. So why does this happen? Checking f…

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## [Invisible ghost nodes and wires](https://discourse.nodered.org/t/invisible-ghost-nodes-and-wires/95084)

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**Author:** [@ThingsTinkerer](https://discourse.nodered.org/u/ThingsTinkerer)\
**Replies:** 4\
**Last updated:** [3 February 2025 11:14 UTC](https://discourse.nodered.org/t/invisible-ghost-nodes-and-wires/95084 "2025-02-03T11:14:58Z")

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Got a freaky situation today. A flow runs fine, but noticed today a few wires, a node and the enveloping group was gone. But it still runs fine. The group is visible when using mouse to drag-select around where it should…

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## [Nodered and SQLite Integration - Error](https://discourse.nodered.org/t/nodered-and-sqlite-integration-error/94529)

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**Author:** [@ganeshiac](https://discourse.nodered.org/u/ganeshiac)\
**Replies:** 15\
**Last updated:** [3 February 2025 11:11 UTC](https://discourse.nodered.org/t/nodered-and-sqlite-integration-error/94529 "2025-02-03T11:11:48Z")

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Good Afternoon!! Now, I currently developed nodered data send to SQLite DB. Here table is created but no data is stored in particular DB. Can you able to check my node flow. I updated below. I shared some details for you…

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## [Node.js and Node-Red versions](https://discourse.nodered.org/t/node-js-and-node-red-versions/95072)

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**Author:** [@NR\_Zeta](https://discourse.nodered.org/u/NR_Zeta)\
**Replies:** 1\
**Last updated:** [2 February 2025 20:38 UTC](https://discourse.nodered.org/t/node-js-and-node-red-versions/95072 "2025-02-02T20:38:36Z")

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Hello every one, I was testing the communication between Node-Red and PLCs Siemens S7-1215C in OPCUA. I have tested two PLCs: one produced in 2018 and one produced in 2022. Node-Red version is 4.0.8. Below my tests: …

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## [Configuring Keycloak with Node-RED in 2025](https://discourse.nodered.org/t/configuring-keycloak-with-node-red-in-2025/95070)

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**Author:** [@theunfamousq](https://discourse.nodered.org/u/theunfamousq)\
**Replies:** 0\
**Last updated:** [2 February 2025 17:59 UTC](https://discourse.nodered.org/t/configuring-keycloak-with-node-red-in-2025/95070 "2025-02-02T17:59:11Z")

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Hello everyone! I'm seeking help for a personal project: I'm trying to create a secured infrastructure, based on using Keycloak, to ease identification. I'm new to this kind of thing, and I would really appreciate some …

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## [Number of nodes](https://discourse.nodered.org/t/number-of-nodes/95046)

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**Author:** [@Giamma](https://discourse.nodered.org/u/Giamma)\
**Replies:** 8\
**Last updated:** [2 February 2025 15:43 UTC](https://discourse.nodered.org/t/number-of-nodes/95046 "2025-02-02T15:43:30Z")

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Hi, this is the list of nodes of a flow ... can I know the number of the node? Or the number of node in (all) my project? It's a simple curiosity ....

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