# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=123

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

**Page:** 124

---

## [Node-RED and Docker, how to populate the nodes & flows that are in manage Pallete menu?](https://discourse.nodered.org/t/node-red-and-docker-how-to-populate-the-nodes-flows-that-are-in-manage-pallete-menu/86474)

<div class="topic-metadata">

**Author:** [@questuk](https://discourse.nodered.org/u/questuk)\
**Replies:** 13\
**Last updated:** [17 March 2024 13:54 UTC](https://discourse.nodered.org/t/node-red-and-docker-how-to-populate-the-nodes-flows-that-are-in-manage-pallete-menu/86474 "2024-03-17T13:54:19Z")

</div>

Hi, My idea of I want this to work is .. If I am not at home and Node-RED becomes unresponsive, someone else can restart the whole of Node-RED with either a simple command or click on a Icon and it starts with all nece…

---

## [Mqtt in node always says connecting](https://discourse.nodered.org/t/mqtt-in-node-always-says-connecting/86466)

<div class="topic-metadata">

**Author:** [@daniel90](https://discourse.nodered.org/u/daniel90)\
**Replies:** 5\
**Last updated:** [17 March 2024 08:42 UTC](https://discourse.nodered.org/t/mqtt-in-node-always-says-connecting/86466 "2024-03-17T08:42:52Z")

</div>

hello everyone, i really struggling with this problem, my mqtt in node wont connected to my public broker, while i really sure that i configure the setting of my mqtt connection to broker was all right note: the pictur…

---

## [Node-red-node-email headers format](https://discourse.nodered.org/t/node-red-node-email-headers-format/86383)

<div class="topic-metadata">

**Author:** [@clmcavaney](https://discourse.nodered.org/u/clmcavaney)\
**Replies:** 5\
**Last updated:** [17 March 2024 03:56 UTC](https://discourse.nodered.org/t/node-red-node-email-headers-format/86383 "2024-03-17T03:56:34Z")

</div>

G'day, I was wanting to add a header in an email sent via the node-red-node-email node but I am having trouble with the format of the headers element. I have tried both a simple string "X-header-name: value" and a JSON…

---

## [Gmail v2.2.1 - SyntaxError: JSON.parse: unexpected character at line 1 column 1 of the JSON data - msg.header](https://discourse.nodered.org/t/gmail-v2-2-1-syntaxerror-json-parse-unexpected-character-at-line-1-column-1-of-the-json-data-msg-header/86478)

<div class="topic-metadata">

**Author:** [@hornblower](https://discourse.nodered.org/u/hornblower)\
**Replies:** 0\
**Last updated:** [16 March 2024 19:51 UTC](https://discourse.nodered.org/t/gmail-v2-2-1-syntaxerror-json-parse-unexpected-character-at-line-1-column-1-of-the-json-data-msg-header/86478 "2024-03-16T19:51:21Z")

</div>

I have two Node Red systems running identical flows. I had to rebuild my Pi3 system and in the process Gmail v2.2.1 was included in the palette, it was released 4 days ago. The other system is running gmail v2.1. On t…

---

## [Trouble with SignalK embedded Node-RED and Sense HAT](https://discourse.nodered.org/t/trouble-with-signalk-embedded-node-red-and-sense-hat/86467)

<div class="topic-metadata">

**Author:** [@smgoldberg](https://discourse.nodered.org/u/smgoldberg)\
**Replies:** 0\
**Last updated:** [15 March 2024 19:08 UTC](https://discourse.nodered.org/t/trouble-with-signalk-embedded-node-red-and-sense-hat/86467 "2024-03-15T19:08:28Z")

</div>

NPM 10.5 SignalK 2.6.2 Node\_RED 3.1.6 node-red-node-pi-sense-hat 0.1.5 RPI 4 running Bookworm Sense HAT hardware V1 running newest software including SignalK with Node-RED embedded. Loaded the Sense Hat nodes. My …

---

## [HMI and plc control](https://discourse.nodered.org/t/hmi-and-plc-control/86457)

<div class="topic-metadata">

**Author:** [@younesDV](https://discourse.nodered.org/u/younesDV)\
**Replies:** 3\
**Last updated:** [15 March 2024 14:36 UTC](https://discourse.nodered.org/t/hmi-and-plc-control/86457 "2024-03-15T14:36:47Z")

</div>

Hello, I have a simple question, is it possible to add a button on my HMI ( siemens) and by a simple click on my button it activates or desactivates a node, my HMI is controlled by a plc s7-1500. Thanks.

---

## [Node-red mysql connection refused](https://discourse.nodered.org/t/node-red-mysql-connection-refused/86450)

<div class="topic-metadata">

**Author:** [@trisin](https://discourse.nodered.org/u/trisin)\
**Replies:** 9\
**Last updated:** [15 March 2024 14:12 UTC](https://discourse.nodered.org/t/node-red-mysql-connection-refused/86450 "2024-03-15T14:12:38Z")

</div>

Hi, team. i am running mysql server(127.0.0.1) 8.0 on my local windows machine. My node-red is running on a remote gateway (192.168.1.1) . my windows 10 computer is connected to the gateway through a ethernet cable. so …

---

## [Problem with Modbus integration and maybe duplicate \_msgid](https://discourse.nodered.org/t/problem-with-modbus-integration-and-maybe-duplicate-msgid/86439)

<div class="topic-metadata">

**Author:** [@Mamonetti](https://discourse.nodered.org/u/Mamonetti)\
**Replies:** 1\
**Last updated:** [15 March 2024 10:49 UTC](https://discourse.nodered.org/t/problem-with-modbus-integration-and-maybe-duplicate-msgid/86439 "2024-03-15T10:49:59Z")

</div>

Hi, I'm trying to integrate a heat recovery unit using Modbus RTU and node-red-contrib-modbus. The flow I'm working in is here (sorry for the comments in Spanish btw): flows\_integrationRecuperador.json (37.6 KB) Here…

---

## [Access speciffic flow from UI](https://discourse.nodered.org/t/access-speciffic-flow-from-ui/86456)

<div class="topic-metadata">

**Author:** [@lucianv](https://discourse.nodered.org/u/lucianv)\
**Replies:** 6\
**Last updated:** [15 March 2024 13:04 UTC](https://discourse.nodered.org/t/access-speciffic-flow-from-ui/86456 "2024-03-15T13:04:02Z")

</div>

Hi, In flow design url, I see the flow ID in the url and I can access speciffic flows using this ID, like http://192.168.50.50:1880/#flow/\*\*8ae237c33aaa34f1\*\* When I go to the UI I see some socketid. Is there a way to…

---

## [Weidmüller AC PLC. How to log data directly to PC](https://discourse.nodered.org/t/weidmuller-ac-plc-how-to-log-data-directly-to-pc/86454)

<div class="topic-metadata">

**Author:** [@AleksDeco](https://discourse.nodered.org/u/AleksDeco)\
**Replies:** 1\
**Last updated:** [15 March 2024 10:11 UTC](https://discourse.nodered.org/t/weidmuller-ac-plc-how-to-log-data-directly-to-pc/86454 "2024-03-15T10:11:00Z")

</div>

Hello everyone who reads this. This week I've got Weidmüller PLC for testing. This thing has got Node-RED preinstalled which I'm not familiar with, just heard a lot of times that people use this environment to do a lot o…

---

## [Trigger a node at continously 10 hours](https://discourse.nodered.org/t/trigger-a-node-at-continously-10-hours/86423)

<div class="topic-metadata">

**Author:** [@neyarprasanth1](https://discourse.nodered.org/u/neyarprasanth1)\
**Replies:** 8\
**Last updated:** [15 March 2024 09:14 UTC](https://discourse.nodered.org/t/trigger-a-node-at-continously-10-hours/86423 "2024-03-15T09:14:32Z")

</div>

Hello guys, I need some type of node, similar to trigger node. But when I switch pressed from ui-dashboard switch, that time only it will be start and it continuously run for only 10 hours. That in between 10 hour it sho…

---

## [Return to Node-Red after a year and nothing works](https://discourse.nodered.org/t/return-to-node-red-after-a-year-and-nothing-works/86437)

<div class="topic-metadata">

**Author:** [@Cathprotech](https://discourse.nodered.org/u/Cathprotech)\
**Replies:** 4\
**Last updated:** [15 March 2024 09:09 UTC](https://discourse.nodered.org/t/return-to-node-red-after-a-year-and-nothing-works/86437 "2024-03-15T09:09:25Z")

</div>

Hi all, I had been running Node-Red for a few years and have lots of flows and everthing worked fine. My Rpi 3 died and corrupted my Influxdb data. I have now decided to start again with Node-Red on a Pi4 and I have i…

---

## [Help with numbers to text (TTS)](https://discourse.nodered.org/t/help-with-numbers-to-text-tts/86410)

<div class="topic-metadata">

**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 15\
**Last updated:** [15 March 2024 07:55 UTC](https://discourse.nodered.org/t/help-with-numbers-to-text-tts/86410 "2024-03-15T07:55:18Z")

</div>

(I know.... Stupid question) I've been a bit bitten by the TTS bug. When it says the time I am getting different results at different times how the time is said. Exert of code: \[{"id":"943ee548ae140c50","type":"cha…

---

## [SQLite data to Excel file](https://discourse.nodered.org/t/sqlite-data-to-excel-file/86443)

<div class="topic-metadata">

**Author:** [@jttjtt](https://discourse.nodered.org/u/jttjtt)\
**Replies:** 2\
**Last updated:** [15 March 2024 07:04 UTC](https://discourse.nodered.org/t/sqlite-data-to-excel-file/86443 "2024-03-15T07:04:19Z")

</div>

Hello, i am struggling with exporting SQlite data to Excel file. I have found sample flow which can make a simple Excel file with two records. It looks like this: \[ { "id": "8835f3f4f0a07f4c", "type"…

---

## [Node-RED in a large IoT project based on RabbitMQ](https://discourse.nodered.org/t/node-red-in-a-large-iot-project-based-on-rabbitmq/86417)

<div class="topic-metadata">

**Author:** [@nioureddine](https://discourse.nodered.org/u/nioureddine)\
**Replies:** 3\
**Last updated:** [15 March 2024 02:42 UTC](https://discourse.nodered.org/t/node-red-in-a-large-iot-project-based-on-rabbitmq/86417 "2024-03-15T02:42:03Z")

</div>

Good evening everyone, I hope you are all doing well. I've encountered an issue with Node-RED. I've been running Node-RED in a terminal or CMD, but the terminal occasionally freezes, which poses a significant problem for…

---

## [Chart Node is not working correctly](https://discourse.nodered.org/t/chart-node-is-not-working-correctly/86436)

<div class="topic-metadata">

**Author:** [@Kuristian](https://discourse.nodered.org/u/Kuristian)\
**Replies:** 4\
**Last updated:** [14 March 2024 22:31 UTC](https://discourse.nodered.org/t/chart-node-is-not-working-correctly/86436 "2024-03-14T22:31:09Z")

</div>

Hello... I've been using chart for reading .csv files and It was working pretty nice BUT at some point it just stops the reading for the csv file. It's wierd 'cause I can send to chart older csv files but recently files…

---

## [Accessing flow variables in a subflow via JSONata expression in a change node](https://discourse.nodered.org/t/accessing-flow-variables-in-a-subflow-via-jsonata-expression-in-a-change-node/86441)

<div class="topic-metadata">

**Author:** [@Matt.L](https://discourse.nodered.org/u/Matt.L)\
**Replies:** 2\
**Last updated:** [14 March 2024 21:52 UTC](https://discourse.nodered.org/t/accessing-flow-variables-in-a-subflow-via-jsonata-expression-in-a-change-node/86441 "2024-03-14T21:52:50Z")

</div>

I'm using a set of flows to pull some data out of a SQLite database for display in the dashboard. The topics contain the general SQL queries with a placeholder for the table I want to access. I then use a change node wi…

---

## [Backup flow, node-red don’t start](https://discourse.nodered.org/t/backup-flow-node-red-don-t-start/86422)

<div class="topic-metadata">

**Author:** [@alber4793](https://discourse.nodered.org/u/alber4793)\
**Replies:** 6\
**Last updated:** [14 March 2024 21:26 UTC](https://discourse.nodered.org/t/backup-flow-node-red-don-t-start/86422 "2024-03-14T21:26:32Z")

</div>

Hello, yesterday I had a problem with the power supply and I have some corrupt files that prevent me from starting node-red. Before trying to solve this problem I would like to make a backup of my flow. Is it possible wi…

---

## [functionGlobalContext for modules with "@" or "/" in name?](https://discourse.nodered.org/t/functionglobalcontext-for-modules-with-or-in-name/86434)

<div class="topic-metadata">

**Author:** [@ndoggac](https://discourse.nodered.org/u/ndoggac)\
**Replies:** 0\
**Last updated:** [14 March 2024 17:35 UTC](https://discourse.nodered.org/t/functionglobalcontext-for-modules-with-or-in-name/86434 "2024-03-14T17:35:08Z")

</div>

I've already implemented a functionGlobalContext in the settings.js file for binary\_parser using the following, drawn from a specific online example using that module. functionGlobalContext: { binary\_parser:requ…

---

## [Node-Red output return from MS SQL Server stored procedure](https://discourse.nodered.org/t/node-red-output-return-from-ms-sql-server-stored-procedure/86429)

<div class="topic-metadata">

**Author:** [@AndyO](https://discourse.nodered.org/u/AndyO)\
**Replies:** 2\
**Last updated:** [14 March 2024 17:20 UTC](https://discourse.nodered.org/t/node-red-output-return-from-ms-sql-server-stored-procedure/86429 "2024-03-14T17:20:44Z")

</div>

Hi. I try to resolve problem where i pass two objects to stored procedure in MS SQL Server: This is function before MS SQL Server node // Check if both weight and SSCC have been received var weightReceived = flow.get(…

---

## [Node-red-contrib-rc522 on SPI1](https://discourse.nodered.org/t/node-red-contrib-rc522-on-spi1/86112)

<div class="topic-metadata">

**Author:** [@Marcos](https://discourse.nodered.org/u/Marcos)\
**Replies:** 1\
**Last updated:** [14 March 2024 11:04 UTC](https://discourse.nodered.org/t/node-red-contrib-rc522-on-spi1/86112 "2024-03-14T11:04:08Z")

</div>

Hi everyone, I am using node-red-contrib-rc522 on a raspberry pi and as long as I use the pins indicated by default everything works fine. Since I need to use the RFID reader together with a touch screen that has a con…

---

## [Node-red-contrib-face-recognition doesnt work!](https://discourse.nodered.org/t/node-red-contrib-face-recognition-doesnt-work/86206)

<div class="topic-metadata">

**Author:** [@Erfan](https://discourse.nodered.org/u/Erfan)\
**Replies:** 9\
**Last updated:** [14 March 2024 09:57 UTC](https://discourse.nodered.org/t/node-red-contrib-face-recognition-doesnt-work/86206 "2024-03-14T09:57:15Z")

</div>

Hi! i success to install palette but when i want to get it my picture to train model node-red crashes!!

---

## [Help Configuring Node-RED for Implementing Telegram Chatbot](https://discourse.nodered.org/t/help-configuring-node-red-for-implementing-telegram-chatbot/86413)

<div class="topic-metadata">

**Author:** [@colombo](https://discourse.nodered.org/u/colombo)\
**Replies:** 2\
**Last updated:** [13 March 2024 23:37 UTC](https://discourse.nodered.org/t/help-configuring-node-red-for-implementing-telegram-chatbot/86413 "2024-03-13T23:37:23Z")

</div>

Hello everyone, I'm seeking assistance in setting up Node-RED to implement a chatbot using Telegram. My goal is to learn more about chatbot development and how to integrate them with Node-RED to enhance its functionalit…

---

## [Trigger light after two sensors are triggered in a specific sequence](https://discourse.nodered.org/t/trigger-light-after-two-sensors-are-triggered-in-a-specific-sequence/86305)

<div class="topic-metadata">

**Author:** [@erkme73](https://discourse.nodered.org/u/erkme73)\
**Replies:** 7\
**Last updated:** [13 March 2024 23:06 UTC](https://discourse.nodered.org/t/trigger-light-after-two-sensors-are-triggered-in-a-specific-sequence/86305 "2024-03-13T23:06:31Z")

</div>

I have two sensors on the approach to my gate. One is at the road (ROAD), the other is at the gate (GATE). I currently have NR watching for GATE after sunset. If it is triggered, it causes all exterior lights to turn …

---

## [Victoria Metrics to Node-RED](https://discourse.nodered.org/t/victoria-metrics-to-node-red/86347)

<div class="topic-metadata">

**Author:** [@davidz](https://discourse.nodered.org/u/davidz)\
**Replies:** 6\
**Last updated:** [13 March 2024 22:26 UTC](https://discourse.nodered.org/t/victoria-metrics-to-node-red/86347 "2024-03-13T22:26:53Z")

</div>

Have anybody used Victoria Metrics? Victoria Metrics seems to be much more efficient than InfluxDB, use less memory, and less data storage. InfluxDB is releasing 3.0, which breaks the Flux query language again. InfluxD…

---

## [Node-RED Flows as WebAssembly (WASM) Modules](https://discourse.nodered.org/t/node-red-flows-as-webassembly-wasm-modules/86409)

<div class="topic-metadata">

**Author:** [@uddy19](https://discourse.nodered.org/u/uddy19)\
**Replies:** 1\
**Last updated:** [13 March 2024 18:59 UTC](https://discourse.nodered.org/t/node-red-flows-as-webassembly-wasm-modules/86409 "2024-03-13T18:59:39Z")

</div>

I’ve been exploring Node-RED recently, and I’m curious: can Node-RED flows be executed as WebAssembly (WASM) modules? I’ve searched around, but I couldn’t find any direct references or documentation on this topic. If any…

---

## [Backing up and restoring the Node-Red system (Argument)](https://discourse.nodered.org/t/backing-up-and-restoring-the-node-red-system-argument/86396)

<div class="topic-metadata">

**Author:** [@sercancetin](https://discourse.nodered.org/u/sercancetin)\
**Replies:** 1\
**Last updated:** [13 March 2024 13:26 UTC](https://discourse.nodered.org/t/backing-up-and-restoring-the-node-red-system-argument/86396 "2024-03-13T13:26:10Z")

</div>

Hello everyone, How can I backup the projects created and installed nodes in Node-Red? When I put this backup back in place, can I show the latest backup? If I want to make a backup now, if I create a copy of the red b…

---

## [Subflow to Node Credentials Management](https://discourse.nodered.org/t/subflow-to-node-credentials-management/86391)

<div class="topic-metadata">

**Author:** [@hornbartho](https://discourse.nodered.org/u/hornbartho)\
**Replies:** 1\
**Last updated:** [13 March 2024 12:13 UTC](https://discourse.nodered.org/t/subflow-to-node-credentials-management/86391 "2024-03-13T12:13:15Z")

</div>

Hi Everyone, We currently make our own NR nodes by making use of a subflow to node converter. This enables us to use NR subflows as NR nodes in a more scalable way. We have an issue with moving the credentials over to…

---

## [Change node to search for status node and return boolean](https://discourse.nodered.org/t/change-node-to-search-for-status-node-and-return-boolean/86385)

<div class="topic-metadata">

**Author:** [@telinal](https://discourse.nodered.org/u/telinal)\
**Replies:** 2\
**Last updated:** [13 March 2024 09:18 UTC](https://discourse.nodered.org/t/change-node-to-search-for-status-node-and-return-boolean/86385 "2024-03-13T09:18:48Z")

</div>

I need to setup a node that can search for the word "Polling" and return a boolean TRUE. The input payload is from a STATUS node that has an object like this: msg.status.text "Polling: HoldingRegister" So I thought of …

---

## [Forward message based on a dropdown menu status](https://discourse.nodered.org/t/forward-message-based-on-a-dropdown-menu-status/86326)

<div class="topic-metadata">

**Author:** [@htlvale](https://discourse.nodered.org/u/htlvale)\
**Replies:** 4\
**Last updated:** [12 March 2024 09:08 UTC](https://discourse.nodered.org/t/forward-message-based-on-a-dropdown-menu-status/86326 "2024-03-12T09:08:31Z")

</div>

Basically I want a co2 value that comes from an mqtt message and converted into a number and then set a pin true depending on the value of the co2 value. But this should only happen if a dropdown menu is set to true. I t…

[Previous page](https://discourse.nodered.org/c/general/7.md?page=122)

[Next page](https://discourse.nodered.org/c/general/7.md?page=124)