# Latest

**URL:** https://discourse.nodered.org/latest.md?page=228

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

**Page:** 229

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## [Data from one function to another function](https://discourse.nodered.org/t/data-from-one-function-to-another-function/85830)

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**Author:** [@pcwortex](https://discourse.nodered.org/u/pcwortex)\
**Replies:** 4\
**Last updated:** [25 February 2024 22:13 UTC](https://discourse.nodered.org/t/data-from-one-function-to-another-function/85830 "2024-02-25T22:13:19Z")

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Hi community, I have this diagram which shows below. I want this data, which is drawn in red color from the Antena\_1 function node output, to be sent to the input of the antena1\_sat function node. How I can do it…

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## [Memory issues with 3.1.5?](https://discourse.nodered.org/t/memory-issues-with-3-1-5/85876)

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**Author:** [@bennyb](https://discourse.nodered.org/u/bennyb)\
**Replies:** 6\
**Last updated:** [25 February 2024 18:56 UTC](https://discourse.nodered.org/t/memory-issues-with-3-1-5/85876 "2024-02-25T18:56:00Z")

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I recently updated nodered from 3.1.2 to 3.1.5, including some nodes which I don't recall exactly. Nodered v3.1.5 Node.js V16.02 RPI4 Since the update I noticed that the memory used by nodered is slowly increasing (ov…

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## [Multistate Switch for Dashboard2](https://discourse.nodered.org/t/multistate-switch-for-dashboard2/85867)

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**Author:** [@tmichaeltx](https://discourse.nodered.org/u/tmichaeltx)\
**Replies:** 2\
**Last updated:** [25 February 2024 19:17 UTC](https://discourse.nodered.org/t/multistate-switch-for-dashboard2/85867 "2024-02-25T19:17:43Z")

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I am excited by all the progress of Dashboard2. In my original dashboard, I used the multistate switch. Does anyone have any insight on if an equivalent control will be available for Dashboard2 any time soon?

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## [Error: Unsupported protocol](https://discourse.nodered.org/t/error-unsupported-protocol/85880)

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**Author:** [@broccnbeans](https://discourse.nodered.org/u/broccnbeans)\
**Replies:** 2\
**Last updated:** [25 February 2024 17:58 UTC](https://discourse.nodered.org/t/error-unsupported-protocol/85880 "2024-02-25T17:58:47Z")

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Hello! I am trying to get Data from a Sensor via MQTT trough Node-Red into an InfluxDB. I am using an ESP32, and an UNRAID Server with all sorts of Docker Container. Namely are Node-Red and InfluxDB also in Docker Cont…

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## [Variable countdown timer](https://discourse.nodered.org/t/variable-countdown-timer/85878)

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**Author:** [@daycare](https://discourse.nodered.org/u/daycare)\
**Replies:** 3\
**Last updated:** [25 February 2024 17:56 UTC](https://discourse.nodered.org/t/variable-countdown-timer/85878 "2024-02-25T17:56:25Z")

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Hello, I'm new to node-red, which I use with the Rhasspy voice assistant. I'm trying to create a countdown whose duration is variable depending on the choice made vocally. I manage to retrieve this value from the Rhas…

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## [Dynamic HTML content in ui-template](https://discourse.nodered.org/t/dynamic-html-content-in-ui-template/85827)

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**Author:** [@nygma2004](https://discourse.nodered.org/u/nygma2004)\
**Replies:** 6\
**Last updated:** [25 February 2024 15:21 UTC](https://discourse.nodered.org/t/dynamic-html-content-in-ui-template/85827 "2024-02-25T15:21:27Z")

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I have a code where I can download a file which is stored on the Node-Red server (not in the static folder). In DB1, I had a template node, to which could pass a HTML code which triggered my file download: msg.temp…

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## [Zoom in node red charts](https://discourse.nodered.org/t/zoom-in-node-red-charts/85882)

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**Author:** [@ginso97](https://discourse.nodered.org/u/ginso97)\
**Replies:** 0\
**Last updated:** [25 February 2024 13:30 UTC](https://discourse.nodered.org/t/zoom-in-node-red-charts/85882 "2024-02-25T13:30:39Z")

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Hi, i am trying to show on my dashboard a graph of data from a database. I would like to have the zoom functionality given by plotly and i tried in different ways: ui-template node: the node seems not able to read dyna…

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## [Dashboard-2 ghost ui-text in group after node deletion](https://discourse.nodered.org/t/dashboard-2-ghost-ui-text-in-group-after-node-deletion/85874)

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**Author:** [@Soiski](https://discourse.nodered.org/u/Soiski)\
**Replies:** 4\
**Last updated:** [25 February 2024 13:04 UTC](https://discourse.nodered.org/t/dashboard-2-ghost-ui-text-in-group-after-node-deletion/85874 "2024-02-25T13:04:13Z")

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I'm seeing this in couple cases when using ui-text (to play around and lerning) that even after the deletion of the ui-text node the text is rendered in the group. I have restarted node-red and refreshed the pages, but i…

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## [Python3 function node](https://discourse.nodered.org/t/python3-function-node/85870)

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**Author:** [@lillebjorn559](https://discourse.nodered.org/u/lillebjorn559)\
**Replies:** 5\
**Last updated:** [25 February 2024 08:59 UTC](https://discourse.nodered.org/t/python3-function-node/85870 "2024-02-25T08:59:11Z")

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I have a code where I control a damper. The damper is running on RS485, and the slider that controls the damper is running in node-red-dashboard. The problem is when I use the slider, nothing happens with my damper. T…

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## [Dashboard 2 - Align center for UI-Switch](https://discourse.nodered.org/t/dashboard-2-align-center-for-ui-switch/85865)

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**Author:** [@Soiski](https://discourse.nodered.org/u/Soiski)\
**Replies:** 7\
**Last updated:** [25 February 2024 08:48 UTC](https://discourse.nodered.org/t/dashboard-2-align-center-for-ui-switch/85865 "2024-02-25T08:48:34Z")

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Having scratched my head and bumbing to brick wall for 16 hrs... I need help. Trying to get the ui-switch to display in dashboard2 the "text and switch" in 4x1 box in total of 8x1 in center. By default it seems to be on…

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## [When will Node-RED 4.0 be released?](https://discourse.nodered.org/t/when-will-node-red-4-0-be-released/85854)

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**Author:** [@lius](https://discourse.nodered.org/u/lius)\
**Replies:** 7\
**Last updated:** [25 February 2024 07:08 UTC](https://discourse.nodered.org/t/when-will-node-red-4-0-be-released/85854 "2024-02-25T07:08:25Z")

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Since Node.js 16 reached end of life in October 2023, running the official Docker image of Node-RED version 3.x can no longer be considered safe. While I understand that requiring Node.js 18 or 20 would constitute a brea…

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## [Edit mysql table](https://discourse.nodered.org/t/edit-mysql-table/85856)

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**Author:** [@hbb999](https://discourse.nodered.org/u/hbb999)\
**Replies:** 3\
**Last updated:** [24 February 2024 19:23 UTC](https://discourse.nodered.org/t/edit-mysql-table/85856 "2024-02-24T19:23:02Z")

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How to create an editable MySql table? I want CRUD operations: to list all the rows of table, add new rows, update values, and delete record.

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## [Custom node feed. How to add](https://discourse.nodered.org/t/custom-node-feed-how-to-add/85844)

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**Author:** [@robertobasile84](https://discourse.nodered.org/u/robertobasile84)\
**Replies:** 3\
**Last updated:** [24 February 2024 17:22 UTC](https://discourse.nodered.org/t/custom-node-feed-how-to-add/85844 "2024-02-24T17:22:01Z")

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Hi all, Creating a node and publishing it to a private npm registry (devops artifacts) was easy enough… now I'm having trouble finding documentation on how to add that registry to my Node-RED palette. I'd like my users…

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## [Victron node-RED asset management](https://discourse.nodered.org/t/victron-node-red-asset-management/85817)

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**Author:** [@martinKraft](https://discourse.nodered.org/u/martinKraft)\
**Replies:** 3\
**Last updated:** [24 February 2024 17:15 UTC](https://discourse.nodered.org/t/victron-node-red-asset-management/85817 "2024-02-24T17:15:59Z")

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Hello, I represent a company where we have about 100+ sites with victron systems. These have the VENUS OS Large, enabling modification of hardware behaviour using node-RED flows. Each site has the same few flows, and the…

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## [UIBUILDER: Early notice of the next major version release (v7)](https://discourse.nodered.org/t/uibuilder-early-notice-of-the-next-major-version-release-v7/85859)

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**Author:** [@TotallyInformation](https://discourse.nodered.org/u/TotallyInformation)\
**Replies:** 0\
**Last updated:** [24 February 2024 16:44 UTC](https://discourse.nodered.org/t/uibuilder-early-notice-of-the-next-major-version-release-v7/85859 "2024-02-24T16:44:00Z")

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I would like to give people plenty of warning of the next major version release of UIBUILDER since it will contain some potentially breaking changes. Most will probably not impact many people but you should be aware anyw…

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## [How can I trigger a message when the value goes past one value and then past another?](https://discourse.nodered.org/t/how-can-i-trigger-a-message-when-the-value-goes-past-one-value-and-then-past-another/85853)

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**Author:** [@Mastiff](https://discourse.nodered.org/u/Mastiff)\
**Replies:** 9\
**Last updated:** [24 February 2024 13:33 UTC](https://discourse.nodered.org/t/how-can-i-trigger-a-message-when-the-value-goes-past-one-value-and-then-past-another/85853 "2024-02-24T13:33:48Z")

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The Suzuki engine interface in my boat sends tilt/trim to SignalK, which I forward to the MQTT broker, where it's read by Node-RED. What I need is a way to trigger an MQTT message (to an ESP Home-device, but that doesn't…

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## [Calculate Time with "plus x min" and "minus x min"](https://discourse.nodered.org/t/calculate-time-with-plus-x-min-and-minus-x-min/85851)

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**Author:** [@Gawan](https://discourse.nodered.org/u/Gawan)\
**Replies:** 2\
**Last updated:** [24 February 2024 12:31 UTC](https://discourse.nodered.org/t/calculate-time-with-plus-x-min-and-minus-x-min/85851 "2024-02-24T12:31:53Z")

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Hi there, is there a possibility to calculate time in NodeRed comparable to what I can do in SQL with dateadd (min) ? I have a time as a varchar ("23:59") and want to add one minute plus or minus - whenever I press a s…

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## [How node-red execute nodes in a flow?](https://discourse.nodered.org/t/how-node-red-execute-nodes-in-a-flow/85845)

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**Author:** [@RemyEE](https://discourse.nodered.org/u/RemyEE)\
**Replies:** 2\
**Last updated:** [24 February 2024 12:22 UTC](https://discourse.nodered.org/t/how-node-red-execute-nodes-in-a-flow/85845 "2024-02-24T12:22:19Z")

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Node-red is amazing tool for programming. I really want to know deeply about it. But, JavaScript is not really my familiar programming language. I am wondering how node-red save all the node inside a flow (I mean, which…

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## [Arithmetic operation \[2362\] error on one node-red but not other](https://discourse.nodered.org/t/arithmetic-operation-2362-error-on-one-node-red-but-not-other/85833)

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**Author:** [@nzbaxterman](https://discourse.nodered.org/u/nzbaxterman)\
**Replies:** 5\
**Last updated:** [24 February 2024 12:17 UTC](https://discourse.nodered.org/t/arithmetic-operation-2362-error-on-one-node-red-but-not-other/85833 "2024-02-24T12:17:39Z")

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Hello I'm getting a javascript warnings when deploying on one Nodered but not another. In it's most simplest form, the function code is as follows: var temp = context.get("last\_update"); //create a node variable var c…

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## [How to limit memory usage](https://discourse.nodered.org/t/how-to-limit-memory-usage/85792)

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**Author:** [@rmystique](https://discourse.nodered.org/u/rmystique)\
**Replies:** 12\
**Last updated:** [24 February 2024 08:51 UTC](https://discourse.nodered.org/t/how-to-limit-memory-usage/85792 "2024-02-24T08:51:06Z")

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I'm using a change node to "set flow.chart" to the value "msg.payload" to save my chart data, how do I limit how much it stores? I only want 7 days worth of data at most, and not just keep adding forever.

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## [Information on NODERED features](https://discourse.nodered.org/t/information-on-nodered-features/85838)

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**Author:** [@Evan7](https://discourse.nodered.org/u/Evan7)\
**Replies:** 2\
**Last updated:** [24 February 2024 08:13 UTC](https://discourse.nodered.org/t/information-on-nodered-features/85838 "2024-02-24T08:13:40Z")

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Guys, can anyone explain to me what this pane marked in the image herewith means and how to interpret the notifications, please? Thank you all for your valuable input because this question arises from an existing iss…

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## [Dashboard 2.0 dynamic entries in ui-text](https://discourse.nodered.org/t/dashboard-2-0-dynamic-entries-in-ui-text/85837)

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**Author:** [@antiguasky](https://discourse.nodered.org/u/antiguasky)\
**Replies:** 1\
**Last updated:** [24 February 2024 07:37 UTC](https://discourse.nodered.org/t/dashboard-2-0-dynamic-entries-in-ui-text/85837 "2024-02-24T07:37:17Z")

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I'm just getting started with Dashboard 2.0 and have run in to a hurdle. I use the switch node fairly often in Dashboard 1.0 to dynamically change the color of the ui-text node as values change. I'm trying to apply a…

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## [Node Red Contractor Needed for discovery, docs, and consult for food service plant](https://discourse.nodered.org/t/node-red-contractor-needed-for-discovery-docs-and-consult-for-food-service-plant/84578)

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**Author:** [@covid8u2](https://discourse.nodered.org/u/covid8u2)\
**Replies:** 8\
**Last updated:** [24 February 2024 02:55 UTC](https://discourse.nodered.org/t/node-red-contractor-needed-for-discovery-docs-and-consult-for-food-service-plant/84578 "2024-02-24T02:55:36Z")

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I am seeking an experienced node-red consultant to help a food services industry, ~24k-ft, plant where node-red is used for fluid tank automation. Two flows are built (one for moving fluid between tanks and another for …

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## [Convert KML to WKT](https://discourse.nodered.org/t/convert-kml-to-wkt/85831)

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**Author:** [@pat1](https://discourse.nodered.org/u/pat1)\
**Replies:** 1\
**Last updated:** [23 February 2024 20:43 UTC](https://discourse.nodered.org/t/convert-kml-to-wkt/85831 "2024-02-23T20:43:43Z")

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I try to POST a json containing WKT geodata. But the geodata is stored in a KML file. How can I do this? Is there a node for the job?

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## [How to change the value of a cell in Google Spreadsheets by specifying its row and column?](https://discourse.nodered.org/t/how-to-change-the-value-of-a-cell-in-google-spreadsheets-by-specifying-its-row-and-column/85820)

<div class="topic-metadata">

**Author:** [@zan](https://discourse.nodered.org/u/zan)\
**Replies:** 2\
**Last updated:** [23 February 2024 18:33 UTC](https://discourse.nodered.org/t/how-to-change-the-value-of-a-cell-in-google-spreadsheets-by-specifying-its-row-and-column/85820 "2024-02-23T18:33:28Z")

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Hi! Using Apps Script, I'm sending information from Google Spreadsheets to Node-Red about cells that are edited by users (column, row, and the value of the edited cell). Is there any sensible way to change the value of…

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## [Docker desktop & PostgreSQL & pgAdmin4 … where is the database data stored?](https://discourse.nodered.org/t/docker-desktop-postgresql-pgadmin4-where-is-the-database-data-stored/85807)

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**Author:** [@questuk](https://discourse.nodered.org/u/questuk)\
**Replies:** 8\
**Last updated:** [23 February 2024 18:30 UTC](https://discourse.nodered.org/t/docker-desktop-postgresql-pgadmin4-where-is-the-database-data-stored/85807 "2024-02-23T18:30:23Z")

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Hi, I am sending data out via Node-RED, to PostgreSQL to a table that has energy I can see this on pgAdmin4 , but I cannot find the actual data inside of Docker desktop , so that i can either bind to it or save it. A…

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## [setTimeout usage and 'Deploy' kills it](https://discourse.nodered.org/t/settimeout-usage-and-deploy-kills-it/85826)

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**Author:** [@gNeandr](https://discourse.nodered.org/u/gNeandr)\
**Replies:** 13\
**Last updated:** [23 February 2024 18:24 UTC](https://discourse.nodered.org/t/settimeout-usage-and-deploy-kills-it/85826 "2024-02-23T18:24:36Z")

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To start a function after a given time 'eTime' I use a function block setTimeout(function () {..}, eTime). If a 'Deploy' is made within the NR editor, the specified timeout time is canceled. Can this be prevented? If not…

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## [Generate screenshot of a dashboard chart for a PDF](https://discourse.nodered.org/t/generate-screenshot-of-a-dashboard-chart-for-a-pdf/85466)

<div class="topic-metadata">

**Author:** [@LilGrundy](https://discourse.nodered.org/u/LilGrundy)\
**Replies:** 4\
**Last updated:** [23 February 2024 17:57 UTC](https://discourse.nodered.org/t/generate-screenshot-of-a-dashboard-chart-for-a-pdf/85466 "2024-02-23T17:57:03Z")

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Good morning, I have been looking for a way to take or remove the image of a chart from my dashboard and have that image inserted into the structure of the PDF that I am putting together, I have searched for information …

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## [Taking screenshots - Final?](https://discourse.nodered.org/t/taking-screenshots-final/85209)

<div class="topic-metadata">

**Author:** [@nerevar](https://discourse.nodered.org/u/nerevar)\
**Replies:** 15\
**Last updated:** [23 February 2024 17:51 UTC](https://discourse.nodered.org/t/taking-screenshots-final/85209 "2024-02-23T17:51:11Z")

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Hello, For some time now I'm struggling to produce working automated screenshots of my dashboard (it uibuilder dashboard but it doesn't matter here). I've tried puppeteer and chromium headless. First, the puppeteer fr…

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## [Serial on Raspberry PI3B+ don't work](https://discourse.nodered.org/t/serial-on-raspberry-pi3b-dont-work/85647)

<div class="topic-metadata">

**Author:** [@golfy44](https://discourse.nodered.org/u/golfy44)\
**Replies:** 10\
**Last updated:** [23 February 2024 17:37 UTC](https://discourse.nodered.org/t/serial-on-raspberry-pi3b-dont-work/85647 "2024-02-23T17:37:03Z")

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Hello everyone, after some hours to try everything I found on forum I'm finished to create this topic. I try to send a string through the serial port of my Raspberry PI3B+ with node-red. Even I don't hace the correct …

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