# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=85

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

**Page:** 86

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## [Which node to use to communicate Lumel ND30IoT with EPC 1502 via MQTT](https://discourse.nodered.org/t/which-node-to-use-to-communicate-lumel-nd30iot-with-epc-1502-via-mqtt/90816)

<div class="topic-metadata">

**Author:** [@lumelnd30iot](https://discourse.nodered.org/u/lumelnd30iot)\
**Replies:** 1\
**Last updated:** [9 September 2024 21:40 UTC](https://discourse.nodered.org/t/which-node-to-use-to-communicate-lumel-nd30iot-with-epc-1502-via-mqtt/90816 "2024-09-09T21:40:30Z")

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Hi I want to communicate ND30IoT which is a meter with Phoenix contact PC "EPC 1502" via MQTT. On EPC i have downloaded MQTT Mosqitto brocker. Later i connected MQTT out with in node successfully. But i have no idea on…

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## [Issues with an empty value](https://discourse.nodered.org/t/issues-with-an-empty-value/90818)

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**Author:** [@ralvez](https://discourse.nodered.org/u/ralvez)\
**Replies:** 6\
**Last updated:** [9 September 2024 19:36 UTC](https://discourse.nodered.org/t/issues-with-an-empty-value/90818 "2024-09-09T19:36:48Z")

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I have a template with the following code: if ( msg.payload\['Outcome Status'\] == '' || msg.payload\['Outcome Status'\] == null ) { msg.payload\['Outcome Status'\] = 'SO'} UPDATE SHRDGMR SET SHRDGMR\_SEQ\_NO = {{pay…

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## [HMI Splash Screen Changes - Boot up](https://discourse.nodered.org/t/hmi-splash-screen-changes-boot-up/90822)

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**Author:** [@CDRAWDY](https://discourse.nodered.org/u/CDRAWDY)\
**Replies:** 0\
**Last updated:** [9 September 2024 19:17 UTC](https://discourse.nodered.org/t/hmi-splash-screen-changes-boot-up/90822 "2024-09-09T19:17:20Z")

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Somewhat adjacent topic, but does anyone know if the Victron splash screen on a GX device that shows up through their HDMI display can be changed? Not the Node-red app side, but the actual splash screen on the physical H…

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## [In simpletime node 'mydoy' does not increment at 00:00](https://discourse.nodered.org/t/in-simpletime-node-mydoy-does-not-increment-at-00-00/90777)

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**Author:** [@GammaKappa](https://discourse.nodered.org/u/GammaKappa)\
**Replies:** 22\
**Last updated:** [9 September 2024 17:09 UTC](https://discourse.nodered.org/t/in-simpletime-node-mydoy-does-not-increment-at-00-00/90777 "2024-09-09T17:09:09Z")

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I use the 'simpletime' node in many of my flows. This node can also output the day-of-year as msg.mydoy . However, I noticed that mydoy does not increment at 00:00 but at 01:00 How can I correct this ?

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## [Weird interface glitch in Node-red designer](https://discourse.nodered.org/t/weird-interface-glitch-in-node-red-designer/90799)

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**Author:** [@ryanprel](https://discourse.nodered.org/u/ryanprel)\
**Replies:** 4\
**Last updated:** [9 September 2024 14:22 UTC](https://discourse.nodered.org/t/weird-interface-glitch-in-node-red-designer/90799 "2024-09-09T14:22:56Z")

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Has anyone ever run across the below screenshot. Node-red on a Raspberry Pi4 became unresponsive so I restarted via terminal and now get this screen in the designer.

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## [How to import node-red nodes into Docker？](https://discourse.nodered.org/t/how-to-import-node-red-nodes-into-docker/90809)

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**Author:** [@Xiang](https://discourse.nodered.org/u/Xiang)\
**Replies:** 0\
**Last updated:** [9 September 2024 09:00 UTC](https://discourse.nodered.org/t/how-to-import-node-red-nodes-into-docker/90809 "2024-09-09T09:00:41Z")

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I created a Dockerfile in the node-red directory and then built my own node-red Docker image. However, the installable nodes for node-red are not being found, even though they were indeed built in.

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## [Subflow multiple inputs support](https://discourse.nodered.org/t/subflow-multiple-inputs-support/90805)

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**Author:** [@wenbei](https://discourse.nodered.org/u/wenbei)\
**Replies:** 3\
**Last updated:** [9 September 2024 07:59 UTC](https://discourse.nodered.org/t/subflow-multiple-inputs-support/90805 "2024-09-09T07:59:35Z")

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I has viewed the forum why-dont-node-red-nodes-allow-multiple-inputs. And I have some different perspectives about multiple inputs in subflow node. In an example like the one below,multiple inputs will be more convenie…

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## [Http node get request with parameter](https://discourse.nodered.org/t/http-node-get-request-with-parameter/90783)

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**Author:** [@Wally](https://discourse.nodered.org/u/Wally)\
**Replies:** 4\
**Last updated:** [9 September 2024 06:32 UTC](https://discourse.nodered.org/t/http-node-get-request-with-parameter/90783 "2024-09-09T06:32:22Z")

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Hi I am using Pushover sending post messages through the http request node which is allowing me to get the receipt parameter of an emergency message from the response. In order to determine if this message has been ackn…

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## [Flow fuse webhook](https://discourse.nodered.org/t/flow-fuse-webhook/90667)

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**Author:** [@imperium85](https://discourse.nodered.org/u/imperium85)\
**Replies:** 9\
**Last updated:** [9 September 2024 06:30 UTC](https://discourse.nodered.org/t/flow-fuse-webhook/90667 "2024-09-09T06:30:30Z")

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Hi Team, What would be the routable HTTP POST endpoint that you can use when setting up your webhook in flow fuse? To what http adrress and port I have to send the data to be able to recive it in FlowFuse?

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## [Understanding how to print time in local timezone](https://discourse.nodered.org/t/understanding-how-to-print-time-in-local-timezone/90797)

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**Author:** [@nygma2004](https://discourse.nodered.org/u/nygma2004)\
**Replies:** 2\
**Last updated:** [8 September 2024 22:23 UTC](https://discourse.nodered.org/t/understanding-how-to-print-time-in-local-timezone/90797 "2024-09-08T22:23:48Z")

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I thought I understand how datetime works in Javascript, but I sometimes I run into issues and I question myself over-and-over again. I know that the timestamp is stored in UTC and we should only do a conversion to local…

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## [Split not supported in function node](https://discourse.nodered.org/t/split-not-supported-in-function-node/90757)

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**Author:** [@ffich](https://discourse.nodered.org/u/ffich)\
**Replies:** 8\
**Last updated:** [8 September 2024 20:01 UTC](https://discourse.nodered.org/t/split-not-supported-in-function-node/90757 "2024-09-08T20:01:44Z")

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Hi, I was trying the solution proposed in this post, to convert a numeric array into char: But when I try Nick's solution, seems that the split method is not supported: Anyone has an idea why? I'm using NodeRed 3…

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## [Node table issue](https://discourse.nodered.org/t/node-table-issue/90792)

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**Author:** [@wcordova](https://discourse.nodered.org/u/wcordova)\
**Replies:** 2\
**Last updated:** [8 September 2024 15:34 UTC](https://discourse.nodered.org/t/node-table-issue/90792 "2024-09-08T15:34:09Z")

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Hi I've already installed the table node but when I want to configure the table nothing appears Have you seen this issue before? BR Walter

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## [Node-red/influxdb/grafana](https://discourse.nodered.org/t/node-red-influxdb-grafana/90766)

<div class="topic-metadata">

**Author:** [@richlinares](https://discourse.nodered.org/u/richlinares)\
**Replies:** 2\
**Last updated:** [8 September 2024 15:10 UTC](https://discourse.nodered.org/t/node-red-influxdb-grafana/90766 "2024-09-08T15:10:20Z")

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Hello, looking for some help on an issue with Boolean values. Please look at the following flow. I am reading a few coils via modbus. I need help understanding why function 54 gives me the Boolean state and why funct…

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## [Node-RED freezes for a few seconds](https://discourse.nodered.org/t/node-red-freezes-for-a-few-seconds/90633)

<div class="topic-metadata">

**Author:** [@goncalo.cruz](https://discourse.nodered.org/u/goncalo.cruz)\
**Replies:** 34\
**Last updated:** [8 September 2024 13:55 UTC](https://discourse.nodered.org/t/node-red-freezes-for-a-few-seconds/90633 "2024-09-08T13:55:07Z")

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Over the last few months, I've been using Node-RED in the context of EVSE (Electric Vehicle Supply Equipment) development. I'm using Node-RED (v3.0.2) in a Docker container installed in an OEM device. For context, in t…

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## [Error Write file](https://discourse.nodered.org/t/error-write-file/90784)

<div class="topic-metadata">

**Author:** [@wcordova](https://discourse.nodered.org/u/wcordova)\
**Replies:** 2\
**Last updated:** [8 September 2024 13:50 UTC](https://discourse.nodered.org/t/error-write-file/90784 "2024-09-08T13:50:53Z")

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hi all From temperature values (which comes from Logo siemens) I created an object (with two attributes :date and temperature) using this function: var hoy=new Date var temperature={ fecha: hoy.getDate().toString()+"…

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## [What kafka contrib are you using?](https://discourse.nodered.org/t/what-kafka-contrib-are-you-using/90774)

<div class="topic-metadata">

**Author:** [@seb](https://discourse.nodered.org/u/seb)\
**Replies:** 3\
**Last updated:** [8 September 2024 13:37 UTC](https://discourse.nodered.org/t/what-kafka-contrib-are-you-using/90774 "2024-09-08T13:37:48Z")

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Hi, There are plenty of kafka nodes but they all seems not being updated. Is kafka a out of topic for node-red ? if not, which library are you using ? thanks

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## [Node-RED Editor: Tabs or windows or buffers](https://discourse.nodered.org/t/node-red-editor-tabs-or-windows-or-buffers/90762)

<div class="topic-metadata">

**Author:** [@gregorius](https://discourse.nodered.org/u/gregorius)\
**Replies:** 8\
**Last updated:** [8 September 2024 05:19 UTC](https://discourse.nodered.org/t/node-red-editor-tabs-or-windows-or-buffers/90762 "2024-09-08T05:19:53Z")

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Hi There, This is a UI question related to tabs. This is more a conceptual question related to what tabs represent. What I've noticed that if I have many tabs (i.e. flows) are open and I want to switch between two tabs…

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## [Stop Switch Passing through Data](https://discourse.nodered.org/t/stop-switch-passing-through-data/90780)

<div class="topic-metadata">

**Author:** [@cameronjust](https://discourse.nodered.org/u/cameronjust)\
**Replies:** 4\
**Last updated:** [8 September 2024 01:10 UTC](https://discourse.nodered.org/t/stop-switch-passing-through-data/90780 "2024-09-08T01:10:58Z")

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I've had this working for years but something has changed with a recent update where my dimming buttons no longer dim lights. When I press a button I pass the button action through to a "switch" which then routes based …

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## [Node function multiple output](https://discourse.nodered.org/t/node-function-multiple-output/90750)

<div class="topic-metadata">

**Author:** [@pin32](https://discourse.nodered.org/u/pin32)\
**Replies:** 5\
**Last updated:** [7 September 2024 17:47 UTC](https://discourse.nodered.org/t/node-function-multiple-output/90750 "2024-09-07T17:47:48Z")

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Hello. I started playing with this fantastic application a few days ago... I was really amazed by the simplicity of use and the power that you have under the hood. I read a lot of things here on the forum guides and aro…

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## [Alarm notifications via telephone call](https://discourse.nodered.org/t/alarm-notifications-via-telephone-call/90746)

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**Author:** [@Kralle](https://discourse.nodered.org/u/Kralle)\
**Replies:** 6\
**Last updated:** [7 September 2024 16:44 UTC](https://discourse.nodered.org/t/alarm-notifications-via-telephone-call/90746 "2024-09-07T16:44:53Z")

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Hello, I have a question. I would like to check the water level of the pump systems with a Dragino CPL03 contact sensor. Alarm messages via SMS are easily ignored. I would like to create an alarm message via telephone ca…

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## [How do I link a HTTP Response (PUT) for login with a HTTP response (Get), such that credentials are used in the GET](https://discourse.nodered.org/t/how-do-i-link-a-http-response-put-for-login-with-a-http-response-get-such-that-credentials-are-used-in-the-get/90594)

<div class="topic-metadata">

**Author:** [@stphpe](https://discourse.nodered.org/u/stphpe)\
**Replies:** 35\
**Last updated:** [7 September 2024 05:57 UTC](https://discourse.nodered.org/t/how-do-i-link-a-http-response-put-for-login-with-a-http-response-get-such-that-credentials-are-used-in-the-get/90594 "2024-09-07T05:57:55Z")

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I have a two flows - HTTP response (PUT) which logs me into my restAPI of my switch using https://{host}/restapi/vXX/login?username=xxxxxx&password=xxxxxx I can successfully login The second flow HTTP response (GET) wh…

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## [Why is the global variable changing?](https://discourse.nodered.org/t/why-is-the-global-variable-changing/90759)

<div class="topic-metadata">

**Author:** [@tkreks](https://discourse.nodered.org/u/tkreks)\
**Replies:** 5\
**Last updated:** [6 September 2024 20:11 UTC](https://discourse.nodered.org/t/why-is-the-global-variable-changing/90759 "2024-09-06T20:11:25Z")

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Hi! I have written a function that should compare json msg.a and msg.b . The differences are displayed in msg.c. And msg.b is updated with values from msg.a . But I take these values from global variables 1 and 2. After…

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## [The RED object has 3 APIs](https://discourse.nodered.org/t/the-red-object-has-3-apis/90760)

<div class="topic-metadata">

**Author:** [@gregorius](https://discourse.nodered.org/u/gregorius)\
**Replies:** 0\
**Last updated:** [6 September 2024 19:44 UTC](https://discourse.nodered.org/t/the-red-object-has-3-apis/90760 "2024-09-06T19:44:56Z")

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Hi There, I have a question related to the RED object that exists in three different incarnations: RED in the backend RED in the context of a function node RED in the frontend browser console each of these RED object…

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## [Advice for automatically turning off smart switch, based upon Firestick output (Home Assistant)](https://discourse.nodered.org/t/advice-for-automatically-turning-off-smart-switch-based-upon-firestick-output-home-assistant/90727)

<div class="topic-metadata">

**Author:** [@Elsmandino](https://discourse.nodered.org/u/Elsmandino)\
**Replies:** 4\
**Last updated:** [6 September 2024 13:58 UTC](https://discourse.nodered.org/t/advice-for-automatically-turning-off-smart-switch-based-upon-firestick-output-home-assistant/90727 "2024-09-06T13:58:22Z")

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Morning all. I have what should be a fairly basic thing to set up but I cannot get my head round the best way to do it. In Home Assistant, I have my Firestick connected as an entity and it outputs six outputs (playing,…

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## [Node red project with git and docker](https://discourse.nodered.org/t/node-red-project-with-git-and-docker/90674)

<div class="topic-metadata">

**Author:** [@ThingsTinkerer](https://discourse.nodered.org/u/ThingsTinkerer)\
**Replies:** 6\
**Last updated:** [6 September 2024 13:54 UTC](https://discourse.nodered.org/t/node-red-project-with-git-and-docker/90674 "2024-09-06T13:54:48Z")

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Have tried out the 'project' feature now in node-red. The integrated git gui seems like an easy way to onboard team members with less experience with git. However, I struggle to see how this can be combined with also inc…

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## [Broker is not coming up](https://discourse.nodered.org/t/broker-is-not-coming-up/90739)

<div class="topic-metadata">

**Author:** [@Debasish](https://discourse.nodered.org/u/Debasish)\
**Replies:** 3\
**Last updated:** [5 September 2024 17:21 UTC](https://discourse.nodered.org/t/broker-is-not-coming-up/90739 "2024-09-05T17:21:02Z")

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Hi, I just started a docker node and able to access the UI. Trying to create a mqtt in with debug node using a test topic. While deploying I am seeing connection unable to come up. Here is a snapshot. Just trying to …

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## [NodeRed dashboard 2.0 Gauge node dynamic Unit](https://discourse.nodered.org/t/nodered-dashboard-2-0-gauge-node-dynamic-unit/90469)

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**Author:** [@psychoLK](https://discourse.nodered.org/u/psychoLK)\
**Replies:** 4\
**Last updated:** [5 September 2024 17:12 UTC](https://discourse.nodered.org/t/nodered-dashboard-2-0-gauge-node-dynamic-unit/90469 "2024-09-05T17:12:25Z")

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Hello Everyone. I am looking for a way to change the unit of Gauge node of dashboard 2.0 dynamically based on msg.unit. Is this possible?

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## [Node Red Project error: "Uncaught TypeError: b\[i\] is undefined"](https://discourse.nodered.org/t/node-red-project-error-uncaught-typeerror-b-i-is-undefined/90734)

<div class="topic-metadata">

**Author:** [@ThingsTinkerer](https://discourse.nodered.org/u/ThingsTinkerer)\
**Replies:** 0\
**Last updated:** [5 September 2024 12:28 UTC](https://discourse.nodered.org/t/node-red-project-error-uncaught-typeerror-b-i-is-undefined/90734 "2024-09-05T12:28:19Z")

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Have tried docker compose to run node-red container and a postgres container together (the db container is not accessed yet and irrelevant for node-red at the moment). Everything is running fine, except the Project featu…

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## [Condition to check the day of the week](https://discourse.nodered.org/t/condition-to-check-the-day-of-the-week/90735)

<div class="topic-metadata">

**Author:** [@xfear1](https://discourse.nodered.org/u/xfear1)\
**Replies:** 2\
**Last updated:** [5 September 2024 12:57 UTC](https://discourse.nodered.org/t/condition-to-check-the-day-of-the-week/90735 "2024-09-05T12:57:05Z")

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Hello, How can I do a function to check the day of the week? An example, I want to send information to a gauge only when is the correct day of the week. I want to have 7 gauges, for every day of the week. So if today …

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## [Emailing a downloadable file with node red](https://discourse.nodered.org/t/emailing-a-downloadable-file-with-node-red/90592)

<div class="topic-metadata">

**Author:** [@Dnice](https://discourse.nodered.org/u/Dnice)\
**Replies:** 9\
**Last updated:** [5 September 2024 11:07 UTC](https://discourse.nodered.org/t/emailing-a-downloadable-file-with-node-red/90592 "2024-09-05T11:07:39Z")

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Looking to send email with a file. Not in the body of the email but as a downloadable attachment

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