# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=77

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

**Page:** 78

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## [Split serial message](https://discourse.nodered.org/t/split-serial-message/92486)

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**Author:** [@soenke](https://discourse.nodered.org/u/soenke)\
**Replies:** 15\
**Last updated:** [18 October 2024 11:44 UTC](https://discourse.nodered.org/t/split-serial-message/92486 "2024-10-18T11:44:43Z")

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Hello, I am new to this forum and have my first question: I have a serial port node that is receiving data. The format of the recieived data is that each message STARTS with a 0xA5 and has that between 2 and 5 additio…

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## [Want to pass through value but only if it has changed](https://discourse.nodered.org/t/want-to-pass-through-value-but-only-if-it-has-changed/92475)

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**Author:** [@trombose009](https://discourse.nodered.org/u/trombose009)\
**Replies:** 7\
**Last updated:** [18 October 2024 10:31 UTC](https://discourse.nodered.org/t/want-to-pass-through-value-but-only-if-it-has-changed/92475 "2024-10-18T10:31:20Z")

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Hi, I have a question. Maybe a noob question but I am not able to solve the problem by myself. I got a value via mqtt in my node-red flow every second. I want to publish it again but not every time I receive one. I onl…

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## [A question about the documentation](https://discourse.nodered.org/t/a-question-about-the-documentation/92476)

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**Author:** [@jbudd](https://discourse.nodered.org/u/jbudd)\
**Replies:** 2\
**Last updated:** [18 October 2024 08:34 UTC](https://discourse.nodered.org/t/a-question-about-the-documentation/92476 "2024-10-18T08:34:38Z")

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In the documentation for dynamic properties, it says Updating Classes If we consider an example with a ui-button, you can send the following msg to the button itself: json msg = { "ui\_update": { "class": …

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## [ENTITY\_ID in a text string](https://discourse.nodered.org/t/entity-id-in-a-text-string/92482)

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**Author:** [@fracrm](https://discourse.nodered.org/u/fracrm)\
**Replies:** 1\
**Last updated:** [18 October 2024 07:54 UTC](https://discourse.nodered.org/t/entity-id-in-a-text-string/92482 "2024-10-18T07:54:20Z")

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Hi, I'm using node red for the first time. I am using the home assistant "current\_state" node and I would need to also include the entity\_id of the object that the node is processing in the msg\_payload. In particular I w…

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## [Use voice monkey with node red](https://discourse.nodered.org/t/use-voice-monkey-with-node-red/92457)

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**Author:** [@fracrm](https://discourse.nodered.org/u/fracrm)\
**Replies:** 3\
**Last updated:** [18 October 2024 07:16 UTC](https://discourse.nodered.org/t/use-voice-monkey-with-node-red/92457 "2024-10-18T07:16:40Z")

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hi, I would like to use node red to interact with voicemonkey and home assistant in order to launch announcements on my alexa devices. To do this I need to launch actions such as rest on home assistant as shown below: R…

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## [mySQL datatable to OPC UA server using node-red](https://discourse.nodered.org/t/mysql-datatable-to-opc-ua-server-using-node-red/92460)

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**Author:** [@skibidifanuc](https://discourse.nodered.org/u/skibidifanuc)\
**Replies:** 2\
**Last updated:** [18 October 2024 06:48 UTC](https://discourse.nodered.org/t/mysql-datatable-to-opc-ua-server-using-node-red/92460 "2024-10-18T06:48:31Z")

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Hey! I'm struggling to send an array of extension objects through from mySQL to an OPC server. When I send values manually (for example I send 3 to point\[3\].fuseType) it works but I always struggle with the array. The p…

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## [Execution logic](https://discourse.nodered.org/t/execution-logic/92469)

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**Author:** [@Giamma](https://discourse.nodered.org/u/Giamma)\
**Replies:** 4\
**Last updated:** [17 October 2024 19:01 UTC](https://discourse.nodered.org/t/execution-logic/92469 "2024-10-17T19:01:47Z")

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Hi everyone, I would like to understand the execution logic of these two functions ..... function 1405 const output = \[null, null, null, null, null\]; output\[0\] = { payload: 0, topic: "Test" } output\[1\] = { payload…

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## [Merging two data sets with JOIN node](https://discourse.nodered.org/t/merging-two-data-sets-with-join-node/92419)

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**Author:** [@sonificator](https://discourse.nodered.org/u/sonificator)\
**Replies:** 6\
**Last updated:** [17 October 2024 18:37 UTC](https://discourse.nodered.org/t/merging-two-data-sets-with-join-node/92419 "2024-10-17T18:37:08Z")

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Hi there! I've been trying (unsuccessfully) to merge two data sets using JOIN node using a common key that exists in both sets (msg.name) ... here is what the first data set looks like: {"ticker":"NASDAQ:WAVE","name":…

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## [Arbitrary amount of simultaneous mqtt connections](https://discourse.nodered.org/t/arbitrary-amount-of-simultaneous-mqtt-connections/92465)

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**Author:** [@ThingsTinkerer](https://discourse.nodered.org/u/ThingsTinkerer)\
**Replies:** 3\
**Last updated:** [17 October 2024 18:04 UTC](https://discourse.nodered.org/t/arbitrary-amount-of-simultaneous-mqtt-connections/92465 "2024-10-17T18:04:24Z")

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Let's say there is an array of mqtt connections to be made. How can node red create X amount of such connections? Perhaps it would be better to have just 1 connection and differentiate on request data, but then there is…

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## [How to get complete ssh output if strings are very long?](https://discourse.nodered.org/t/how-to-get-complete-ssh-output-if-strings-are-very-long/92466)

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**Author:** [@kevinshane](https://discourse.nodered.org/u/kevinshane)\
**Replies:** 3\
**Last updated:** [17 October 2024 17:17 UTC](https://discourse.nodered.org/t/how-to-get-complete-ssh-output-if-strings-are-very-long/92466 "2024-10-17T17:17:50Z")

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Hi nrGurus, I am using sshtools (and ssh-v3) plugins to get outputs from a server. The returned json is a pretty long strings which cause the debug node displays a "..." in the end, in this case I can't parse into valid …

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## [Sending numbers by a date schedule](https://discourse.nodered.org/t/sending-numbers-by-a-date-schedule/92406)

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**Author:** [@877](https://discourse.nodered.org/u/877)\
**Replies:** 4\
**Last updated:** [17 October 2024 12:51 UTC](https://discourse.nodered.org/t/sending-numbers-by-a-date-schedule/92406 "2024-10-17T12:51:30Z")

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I have a new underfloor heated system and have been advised to ensure it doesn't crack/warp to up the temperature slowly and lower again, as per the attached screenshot. I have it set up in Home Assistant and can set th…

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## [Insufficient dynamic mqtt documentation?](https://discourse.nodered.org/t/insufficient-dynamic-mqtt-documentation/92458)

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**Author:** [@ThingsTinkerer](https://discourse.nodered.org/u/ThingsTinkerer)\
**Replies:** 11\
**Last updated:** [17 October 2024 12:45 UTC](https://discourse.nodered.org/t/insufficient-dynamic-mqtt-documentation/92458 "2024-10-17T12:45:50Z")

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Node red doc for mqtt in (dynamic) is somewhat lackluster. Trying this for the first time, I see what's presented, but not sure what "broker" is (type?), compared url and port. Also I don't see anywhere to specify client…

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## [TIGO Energy import data from API into influxDB](https://discourse.nodered.org/t/tigo-energy-import-data-from-api-into-influxdb/92451)

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**Author:** [@muligamma](https://discourse.nodered.org/u/muligamma)\
**Replies:** 0\
**Last updated:** [17 October 2024 06:43 UTC](https://discourse.nodered.org/t/tigo-energy-import-data-from-api-into-influxdb/92451 "2024-10-17T06:43:25Z")

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I found this post but it doesn't work. I have a Premium account for TIGO, I created the token, but I can't import data into the InfluxDB database https://discourse.nodered.org/t/tigo-energy-pv-combined-api-to-influxdb c…

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## [How I can create SAP notification with Babi function modules in sequence (Create ,save and commit)](https://discourse.nodered.org/t/how-i-can-create-sap-notification-with-babi-function-modules-in-sequence-create-save-and-commit/92433)

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**Author:** [@alnashar2004](https://discourse.nodered.org/u/alnashar2004)\
**Replies:** 5\
**Last updated:** [17 October 2024 06:59 UTC](https://discourse.nodered.org/t/how-i-can-create-sap-notification-with-babi-function-modules-in-sequence-create-save-and-commit/92433 "2024-10-17T06:59:42Z")

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Dears I need to create maintenance notification from SAP by sapRFC I use FM BAPI\_ALM\_NOTIF\_CREATE and BAPI\_ALM\_NOTIF\_SAVE and BAPI\_TRANSACTION\_COMMIT in series , notification created with temp. number %0000000001 and c…

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## [Reading events/schedules from external programs - help](https://discourse.nodered.org/t/reading-events-schedules-from-external-programs-help/92399)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 8\
**Last updated:** [17 October 2024 05:08 UTC](https://discourse.nodered.org/t/reading-events-schedules-from-external-programs-help/92399 "2024-10-17T05:08:00Z")

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This may be trickier than I think. But what the..... :wink: I do NOT use google's calendar. Which kinda puts me in a spot for other reasons. Though I digress. On THIS machine I use calendar (though that isn't wh…

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## [Setting.js file protection](https://discourse.nodered.org/t/setting-js-file-protection/92420)

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**Author:** [@rromele](https://discourse.nodered.org/u/rromele)\
**Replies:** 5\
**Last updated:** [16 October 2024 19:30 UTC](https://discourse.nodered.org/t/setting-js-file-protection/92420 "2024-10-16T19:30:52Z")

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How to protect "setting.js" and "flow.json" files from modifications by unauthorized users? Which is the best technique?

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## [Send a message to alexa, from a linux box](https://discourse.nodered.org/t/send-a-message-to-alexa-from-a-linux-box/92435)

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**Author:** [@andrewtholt](https://discourse.nodered.org/u/andrewtholt)\
**Replies:** 2\
**Last updated:** [16 October 2024 14:34 UTC](https://discourse.nodered.org/t/send-a-message-to-alexa-from-a-linux-box/92435 "2024-10-16T14:34:52Z")

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Hi, I would like to send a message to an amazon alexa, e.g from an MQTT device that a sensor has been affected, e,g, a switch has changed, or a temperature has been reached. I can easily write a script to send arbitra…

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## [Tesla API for own vehicle?](https://discourse.nodered.org/t/tesla-api-for-own-vehicle/92416)

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**Author:** [@dth](https://discourse.nodered.org/u/dth)\
**Replies:** 5\
**Last updated:** [16 October 2024 14:18 UTC](https://discourse.nodered.org/t/tesla-api-for-own-vehicle/92416 "2024-10-16T14:18:38Z")

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Hi, people :slight\_smile: What is the current status of accessing the Tesla API from Node-Red, without going through Tessie, Teslemetry, or similar? In my case just for a single private vehicle. I signed up at the Tesl…

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## [Node ui-builder](https://discourse.nodered.org/t/node-ui-builder/92398)

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**Author:** [@EBA](https://discourse.nodered.org/u/EBA)\
**Replies:** 7\
**Last updated:** [16 October 2024 11:21 UTC](https://discourse.nodered.org/t/node-ui-builder/92398 "2024-10-16T11:21:34Z")

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Hello everyone! I've seen that there are very kind people in this forum and I've been encouraged to write my problems with UI bUilder :slight\_smile: I'm new to UI Builder and I had some problems. What I want is a butt…

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## [Help Needed: Modifying Dashboard Title and Adding Logo in Node-RED](https://discourse.nodered.org/t/help-needed-modifying-dashboard-title-and-adding-logo-in-node-red/92405)

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**Author:** [@Nandhini-Subramaniya](https://discourse.nodered.org/u/Nandhini-Subramaniya)\
**Replies:** 9\
**Last updated:** [16 October 2024 10:08 UTC](https://discourse.nodered.org/t/help-needed-modifying-dashboard-title-and-adding-logo-in-node-red/92405 "2024-10-16T10:08:30Z")

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I am currently working on customizing my Node-RED dashboard, and I have a couple of issues I need help with. Changing the Dashboard Title: I attempted to change the title by modifying the index.html file in the Node-…

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## [Node Red for ERP Integration](https://discourse.nodered.org/t/node-red-for-erp-integration/16017)

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**Author:** [@nygma2004](https://discourse.nodered.org/u/nygma2004)\
**Replies:** 18\
**Last updated:** [30 October 2019 15:36 UTC](https://discourse.nodered.org/t/node-red-for-erp-integration/16017 "2019-10-30T15:36:41Z")

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I have been doing a lot of integration at home with Node-Red some of them could be useful in my professional carrier. I work as a SAP consultant. This is more of a thought process at the moment, but I was thinking about…

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## [Another question about time and formats](https://discourse.nodered.org/t/another-question-about-time-and-formats/92392)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 11\
**Last updated:** [16 October 2024 03:51 UTC](https://discourse.nodered.org/t/another-question-about-time-and-formats/92392 "2024-10-16T03:51:45Z")

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Ok, I kinda got the other question working/resolved. But in doing so I found ANOTHER gremlin lurking under the covers. new Date().toLocaleString(); For reasons unknown to me, it gives me time with those pesky AM/PM th…

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## [Bug? Disable button on Debug node](https://discourse.nodered.org/t/bug-disable-button-on-debug-node/92415)

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**Author:** [@phreed](https://discourse.nodered.org/u/phreed)\
**Replies:** 5\
**Last updated:** [15 October 2024 19:27 UTC](https://discourse.nodered.org/t/bug-disable-button-on-debug-node/92415 "2024-10-15T19:27:54Z")

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When I press the enable button on the debug node I get unexpected behaviour. The enable/disable is toggled as expected but the blue dot comes on. The blue dot indicates that the node needs to be deployed. However, the…

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## [Help to make a quick bit of code with Date/Time and message](https://discourse.nodered.org/t/help-to-make-a-quick-bit-of-code-with-date-time-and-message/92390)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 6\
**Last updated:** [15 October 2024 19:23 UTC](https://discourse.nodered.org/t/help-to-make-a-quick-bit-of-code-with-date-time-and-message/92390 "2024-10-15T19:23:25Z")

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(Don't know why but some of the suggestions offered at the start won't open) I asked chatGPT and it doesn't seem to work. // Get the current date and time let now = new Date(); // Format the date to a human-readable s…

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## [Disappearing node\_modules](https://discourse.nodered.org/t/disappearing-node-modules/92401)

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**Author:** [@muggins](https://discourse.nodered.org/u/muggins)\
**Replies:** 16\
**Last updated:** [15 October 2024 18:35 UTC](https://discourse.nodered.org/t/disappearing-node-modules/92401 "2024-10-15T18:35:46Z")

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Hi I have some additional modules that I use. i2c-bus ina219 ina219-sync A couple of times recently these have disappeared and node red has stopped because they are called upon in settings.js I notice that they have…

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## [Constructing flow, subflow, and group global variables from user global variables](https://discourse.nodered.org/t/constructing-flow-subflow-and-group-global-variables-from-user-global-variables/92316)

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**Author:** [@phreed](https://discourse.nodered.org/u/phreed)\
**Replies:** 19\
**Last updated:** [15 October 2024 14:21 UTC](https://discourse.nodered.org/t/constructing-flow-subflow-and-group-global-variables-from-user-global-variables/92316 "2024-10-15T14:21:07Z")

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User global environment variables are new, since v3.1 Using environment variables : Node-RED Version 3.1 released : Node-RED What I want to know is if, for example, a flow global variable can be set based on a user gl…

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## [Hpe\_invalid\_constant](https://discourse.nodered.org/t/hpe-invalid-constant/4385)

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**Author:** [@AD3D](https://discourse.nodered.org/u/AD3D)\
**Replies:** 2\
**Last updated:** [15 October 2024 14:18 UTC](https://discourse.nodered.org/t/hpe-invalid-constant/4385 "2024-10-15T14:18:27Z")

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After searching this forum and Google, I didn't find what I was looking for. So I now following the advice to start a new topic for this (at least for me) unknown error. The problem is coming/part off/generated (perhaps…

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## [Dynamically drop TCP/IP connection between 2 nodes](https://discourse.nodered.org/t/dynamically-drop-tcp-ip-connection-between-2-nodes/92400)

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**Author:** [@KarolisL](https://discourse.nodered.org/u/KarolisL)\
**Replies:** 3\
**Last updated:** [15 October 2024 12:01 UTC](https://discourse.nodered.org/t/dynamically-drop-tcp-ip-connection-between-2-nodes/92400 "2024-10-15T12:01:28Z")

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Continuation for topic raised: Dynamically Disable individual nodes - #21 by KarolisL NR is communicating with PLC via TCP request. I want to create test scenarios, which simulate TCP connection drop when PLC TCP side …

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## [Sending data to uibuilder from function node](https://discourse.nodered.org/t/sending-data-to-uibuilder-from-function-node/92386)

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**Author:** [@Jayeshpitale1](https://discourse.nodered.org/u/Jayeshpitale1)\
**Replies:** 5\
**Last updated:** [15 October 2024 10:11 UTC](https://discourse.nodered.org/t/sending-data-to-uibuilder-from-function-node/92386 "2024-10-15T10:11:38Z")

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\[ { "id": "1ceef65e4021de52", "type": "tab", "label": "Flow 2", "disabled": false, "info": "", "env": \[\] }, { "id": "05116951c3e0e7ed", "type": …

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## [Tail node issues](https://discourse.nodered.org/t/tail-node-issues/92260)

<div class="topic-metadata">

**Author:** [@OriolFM](https://discourse.nodered.org/u/OriolFM)\
**Replies:** 3\
**Last updated:** [15 October 2024 07:01 UTC](https://discourse.nodered.org/t/tail-node-issues/92260 "2024-10-15T07:01:14Z")

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I wanted to use the Tail node to monitor log files from various machines. In the tests I ran locally, the tail node worked fine, and sent the last line that I pasted on the file. The remote folders that have the logs ar…

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