# Latest

**URL:** https://discourse.nodered.org/latest.md?page=227

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

**Page:** 228

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## [Writing and Processing Data to File](https://discourse.nodered.org/t/writing-and-processing-data-to-file/85481)

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**Author:** [@bgultekin](https://discourse.nodered.org/u/bgultekin)\
**Replies:** 5\
**Last updated:** [27 February 2024 12:53 UTC](https://discourse.nodered.org/t/writing-and-processing-data-to-file/85481 "2024-02-27T12:53:36Z")

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Hello, I will save the data in node-red to a file and then send the data here to sqle according to the old to new. Then I will delete the data I sent from the file. I would appreciate if you can help.

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## [Add new tab through button in the sidebar](https://discourse.nodered.org/t/add-new-tab-through-button-in-the-sidebar/85947)

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**Author:** [@rko](https://discourse.nodered.org/u/rko)\
**Replies:** 3\
**Last updated:** [27 February 2024 12:24 UTC](https://discourse.nodered.org/t/add-new-tab-through-button-in-the-sidebar/85947 "2024-02-27T12:24:04Z")

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There is currently no way to easily add new tabs. Would be nice to have a button to do this. In DB1 there was this:

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## [Compare data from one hour ago with current](https://discourse.nodered.org/t/compare-data-from-one-hour-ago-with-current/85940)

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**Author:** [@RedRobin132](https://discourse.nodered.org/u/RedRobin132)\
**Replies:** 3\
**Last updated:** [27 February 2024 12:21 UTC](https://discourse.nodered.org/t/compare-data-from-one-hour-ago-with-current/85940 "2024-02-27T12:21:16Z")

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Hello! I have a project where i collect the water level of a river with a sensor. When a predefined height is surpassed, the node red flow send a push message to my phone. Now i want to also compare the current level wi…

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## [Table shape is changing in dashboard](https://discourse.nodered.org/t/table-shape-is-changing-in-dashboard/85952)

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**Author:** [@shubhamnodered](https://discourse.nodered.org/u/shubhamnodered)\
**Replies:** 0\
**Last updated:** [27 February 2024 11:52 UTC](https://discourse.nodered.org/t/table-shape-is-changing-in-dashboard/85952 "2024-02-27T11:52:14Z")

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Hi Guys! Need your help I am facing problem with Node-red dashboard. I have created the table. Initially it opens in maximized state and when i refresh the dashboard screen, then its shape is minimized. As a result, i h…

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## ["Site Settings" in DB2](https://discourse.nodered.org/t/site-settings-in-db2/85946)

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**Author:** [@rko](https://discourse.nodered.org/u/rko)\
**Replies:** 1\
**Last updated:** [27 February 2024 11:44 UTC](https://discourse.nodered.org/t/site-settings-in-db2/85946 "2024-02-27T11:44:51Z")

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In DB2, "Node-RED Dasboard 2.0" is shown as tab title while loading the page. Will it be possible to customize this in the future?

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## [Dynamically changeable Node from "outside", handshake secured sending over MQTT](https://discourse.nodered.org/t/dynamically-changeable-node-from-outside-handshake-secured-sending-over-mqtt/85803)

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**Author:** [@AirTimeDan](https://discourse.nodered.org/u/AirTimeDan)\
**Replies:** 8\
**Last updated:** [27 February 2024 11:30 UTC](https://discourse.nodered.org/t/dynamically-changeable-node-from-outside-handshake-secured-sending-over-mqtt/85803 "2024-02-27T11:30:38Z")

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I need a solution for: Receiving Data from ModbusRTU, ModbusTCP, maybe KNX. The parameters (Modbus ID, FC, Register / KNX Adress) should be configurable from external like MQTT Message or a config file. The Data then g…

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## [How to make the checkBox working?](https://discourse.nodered.org/t/how-to-make-the-checkbox-working/85951)

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**Author:** [@JanIwnl](https://discourse.nodered.org/u/JanIwnl)\
**Replies:** 2\
**Last updated:** [27 February 2024 11:16 UTC](https://discourse.nodered.org/t/how-to-make-the-checkbox-working/85951 "2024-02-27T11:16:03Z")

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Hello, i'm trying to implement a checkBox in my dashobard that is hidding some columns from my table when is checked. I'm using a dokker with v3.0.2. So far i implemented the checkBox using an ui-template What i don…

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## [Node red dashboard chart background color](https://discourse.nodered.org/t/node-red-dashboard-chart-background-color/85945)

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**Author:** [@nightmareside15](https://discourse.nodered.org/u/nightmareside15)\
**Replies:** 2\
**Last updated:** [27 February 2024 10:13 UTC](https://discourse.nodered.org/t/node-red-dashboard-chart-background-color/85945 "2024-02-27T10:13:49Z")

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The chart background seems following the theme from the node - red. Is there any way to replacing it to some other color other than the default theme? Also, is it also possible to change the line width like we did in ch…

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## [Get total number of messages for logging purpose](https://discourse.nodered.org/t/get-total-number-of-messages-for-logging-purpose/85930)

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**Author:** [@Riccaleu](https://discourse.nodered.org/u/Riccaleu)\
**Replies:** 8\
**Last updated:** [27 February 2024 09:16 UTC](https://discourse.nodered.org/t/get-total-number-of-messages-for-logging-purpose/85930 "2024-02-27T09:16:11Z")

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hi evreyone, for log purpose i need to count all the messages that arrive in a node. i need one value in a varible At the moment i set up topic + counter + join with a timeout. but is not the proper soluutin sin time c…

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## [Button on dashboard 2.0 cannot retrieve flow or global context data](https://discourse.nodered.org/t/button-on-dashboard-2-0-cannot-retrieve-flow-or-global-context-data/85908)

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**Author:** [@Anmirazik](https://discourse.nodered.org/u/Anmirazik)\
**Replies:** 3\
**Last updated:** [27 February 2024 00:10 UTC](https://discourse.nodered.org/t/button-on-dashboard-2-0-cannot-retrieve-flow-or-global-context-data/85908 "2024-02-27T00:10:09Z")

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Hello , I used button on dashboard 2.0 and not able to retrieve the flow/global context variable through the button node ? I believe this is a bug because the button node on dashboard 1.0 it works just fine Above imag…

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## [Logging Metrics for Node-RED Instances in FlowFuse](https://discourse.nodered.org/t/logging-metrics-for-node-red-instances-in-flowfuse/85538)

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**Author:** [@nohc](https://discourse.nodered.org/u/nohc)\
**Replies:** 1\
**Last updated:** [27 February 2024 08:16 UTC](https://discourse.nodered.org/t/logging-metrics-for-node-red-instances-in-flowfuse/85538 "2024-02-27T08:16:39Z")

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Is there a recommended way to log metrics (as noted in the standard NR documentaion for logging) for instances hosted in self-hosted FlowFuse? I am not sure if manual editing of the settings.js file is advised. Thanks

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## [Change data type dword/ bit string (32bit)](https://discourse.nodered.org/t/change-data-type-dword-bit-string-32bit/85942)

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**Author:** [@Nanda](https://discourse.nodered.org/u/Nanda)\
**Replies:** 1\
**Last updated:** [27 February 2024 07:40 UTC](https://discourse.nodered.org/t/change-data-type-dword-bit-string-32bit/85942 "2024-02-27T07:40:17Z")

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Hai, I want to change the data type in node red to dword / bit string (32bit) so that the display is in accordance with the HMI engine. is the address part changed or other parts?

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## [Handling HTTPRequest Error](https://discourse.nodered.org/t/handling-httprequest-error/85918)

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**Author:** [@shershah](https://discourse.nodered.org/u/shershah)\
**Replies:** 9\
**Last updated:** [27 February 2024 07:27 UTC](https://discourse.nodered.org/t/handling-httprequest-error/85918 "2024-02-27T07:27:42Z")

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Dear All, Currently I am hitting http request to get the response. When API is down , I am not able to handle the exception. I am getting "JSON parse error". Catch block is not triggering , nor I am getting any http ou…

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## [Linking two MQTT brokers via radio using LoRa](https://discourse.nodered.org/t/linking-two-mqtt-brokers-via-radio-using-lora/56312)

<div class="topic-metadata">

**Author:** [@krambriw](https://discourse.nodered.org/u/krambriw)\
**Replies:** 13\
**Last updated:** [27 February 2024 04:39 UTC](https://discourse.nodered.org/t/linking-two-mqtt-brokers-via-radio-using-lora/56312 "2024-02-27T04:39:54Z")

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Just wanted to tell you all about a little LoRa experiment. I ordered two LoRa devices, they worked fine right out of the box with the included firmware but my target was to create a two-way LoRa radio link between two M…

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## [Style override - some Vue elements not visible in DB2](https://discourse.nodered.org/t/style-override-some-vue-elements-not-visible-in-db2/85936)

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**Author:** [@nygma2004](https://discourse.nodered.org/u/nygma2004)\
**Replies:** 8\
**Last updated:** [26 February 2024 21:57 UTC](https://discourse.nodered.org/t/style-override-some-vue-elements-not-visible-in-db2/85936 "2024-02-26T21:57:47Z")

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@hotNipi helped me to create a style change as the v-menu was using the wrong background color. I found two similar case, but I can't really figure out myself how to create a style to fix the colors properly: Case 1: ic…

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## [Browser Tab Icon](https://discourse.nodered.org/t/browser-tab-icon/85925)

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**Author:** [@rko](https://discourse.nodered.org/u/rko)\
**Replies:** 2\
**Last updated:** [26 February 2024 21:26 UTC](https://discourse.nodered.org/t/browser-tab-icon/85925 "2024-02-26T21:26:36Z")

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Anybody managed to change / replace the browser tab icon in DB2?

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## [Custom JS for ui-template in Dashboard 2.0](https://discourse.nodered.org/t/custom-js-for-ui-template-in-dashboard-2-0/85852)

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**Author:** [@Stwissel](https://discourse.nodered.org/u/Stwissel)\
**Replies:** 0\
**Last updated:** [24 February 2024 11:53 UTC](https://discourse.nodered.org/t/custom-js-for-ui-template-in-dashboard-2-0/85852 "2024-02-24T11:53:19Z")

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The documentation of ui template has an example of external JS: \<script src="https://cdn.babylonjs.com/babylon.js"\>\</script\> I would like to include a local file resource, so I modified settings.js to include module.e…

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## [Controlling 2 PCF8574 boards](https://discourse.nodered.org/t/controlling-2-pcf8574-boards/85920)

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**Author:** [@GammaKappa](https://discourse.nodered.org/u/GammaKappa)\
**Replies:** 10\
**Last updated:** [26 February 2024 19:44 UTC](https://discourse.nodered.org/t/controlling-2-pcf8574-boards/85920 "2024-02-26T19:44:34Z")

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I am trying to control two PCf8574 boards (8 port IO expanders) in Node-red using the @joe-ab1do/mcp-pcf-aio node. This works fine with 1 board, but not with 2 boards. I connected the 2 PCF8574 boards to the Raspberry …

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## [Redeploy an existing flow from another flow using the flows API](https://discourse.nodered.org/t/redeploy-an-existing-flow-from-another-flow-using-the-flows-api/85689)

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**Author:** [@jftaylorMn](https://discourse.nodered.org/u/jftaylorMn)\
**Replies:** 17\
**Last updated:** [26 February 2024 18:20 UTC](https://discourse.nodered.org/t/redeploy-an-existing-flow-from-another-flow-using-the-flows-api/85689 "2024-02-26T18:20:58Z")

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Last summer, pretty much the same topic came up and the response was that even though the payload contains info for a specific flow (tab), all flows will reload as long as the reload parameter is set in the header. That…

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## [Cannot call functions of config node](https://discourse.nodered.org/t/cannot-call-functions-of-config-node/85929)

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**Author:** [@hansimeister](https://discourse.nodered.org/u/hansimeister)\
**Replies:** 3\
**Last updated:** [26 February 2024 16:57 UTC](https://discourse.nodered.org/t/cannot-call-functions-of-config-node/85929 "2024-02-26T16:57:46Z")

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Hi there! I am trying to access a function namely getToken() defined in my config node in another node. However if I do it like the following: var server = RED.nodes.node(node.server); console.log("serv…

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## [Use Environment Variables As Config Substitute](https://discourse.nodered.org/t/use-environment-variables-as-config-substitute/85828)

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**Author:** [@mlschuh](https://discourse.nodered.org/u/mlschuh)\
**Replies:** 4\
**Last updated:** [26 February 2024 14:52 UTC](https://discourse.nodered.org/t/use-environment-variables-as-config-substitute/85828 "2024-02-26T14:52:08Z")

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Hello, I have many instances where I manage quite a few NodeRED instances deployed via Docker. For a variety of reasons, it would be extremely useful to be able to adjust the settings in settings.js via env variables so…

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## [How to add additional functionality to the grouping of nodes?](https://discourse.nodered.org/t/how-to-add-additional-functionality-to-the-grouping-of-nodes/85923)

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**Author:** [@Jonathan](https://discourse.nodered.org/u/Jonathan)\
**Replies:** 1\
**Last updated:** [26 February 2024 13:49 UTC](https://discourse.nodered.org/t/how-to-add-additional-functionality-to-the-grouping-of-nodes/85923 "2024-02-26T13:49:04Z")

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I can't find the code where the grouping is implemented. For my thesis I want to extend this grouping of nodes to be able to restrict a group of nodes to acces the network or writing to files preventing certain cyber att…

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## [Dashboard 2 widget in template not using space available](https://discourse.nodered.org/t/dashboard-2-widget-in-template-not-using-space-available/85919)

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**Author:** [@Colin](https://discourse.nodered.org/u/Colin)\
**Replies:** 2\
**Last updated:** [26 February 2024 13:31 UTC](https://discourse.nodered.org/t/dashboard-2-widget-in-template-not-using-space-available/85919 "2024-02-26T13:31:02Z")

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If I have a v-select widget in a ui-template I find that it does not use the available space in the same way as the core Dropdown widget does. For example with this in the template \<template\> \<div\> \<v-select …

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## [In D2 ui-template can't get @update:modelValue to work in v-select](https://discourse.nodered.org/t/in-d2-ui-template-cant-get-update-modelvalue-to-work-in-v-select/85860)

<div class="topic-metadata">

**Author:** [@Colin](https://discourse.nodered.org/u/Colin)\
**Replies:** 6\
**Last updated:** [26 February 2024 11:19 UTC](https://discourse.nodered.org/t/in-d2-ui-template-cant-get-update-modelvalue-to-work-in-v-select/85860 "2024-02-26T11:19:14Z")

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I am experimenting with widgets in D2 ui-template. I have a v-select and the docs suggests that @update:modelValue should be fired when the selected value changes, but I can't get this to work. @click does work. This i…

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## [Using moment.js to compare times in function node](https://discourse.nodered.org/t/using-moment-js-to-compare-times-in-function-node/85917)

<div class="topic-metadata">

**Author:** [@lee\_evo](https://discourse.nodered.org/u/lee_evo)\
**Replies:** 2\
**Last updated:** [26 February 2024 11:16 UTC](https://discourse.nodered.org/t/using-moment-js-to-compare-times-in-function-node/85917 "2024-02-26T11:16:06Z")

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Hi, I can't seem to work out why I always get a 'false' result when comparing 2 times in a nodered function with moment.js. Taking the current time, and the sunset time and trying to test if it's before sunset. appreci…

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## [Display influxdb-2 data in dashboard-2](https://discourse.nodered.org/t/display-influxdb-2-data-in-dashboard-2/85887)

<div class="topic-metadata">

**Author:** [@flipside](https://discourse.nodered.org/u/flipside)\
**Replies:** 12\
**Last updated:** [26 February 2024 10:31 UTC](https://discourse.nodered.org/t/display-influxdb-2-data-in-dashboard-2/85887 "2024-02-26T10:31:38Z")

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Hello everyone, I have created a flow that is receiving fake temperature values (using random function) from an ESP32 using MQTT. I use influxdb v2 to store the values. My problem is that I cannot display the last hour…

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## [Table not updated cross devices](https://discourse.nodered.org/t/table-not-updated-cross-devices/85862)

<div class="topic-metadata">

**Author:** [@gNeandr](https://discourse.nodered.org/u/gNeandr)\
**Replies:** 9\
**Last updated:** [26 February 2024 09:19 UTC](https://discourse.nodered.org/t/table-not-updated-cross-devices/85862 "2024-02-26T09:19:16Z")

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One of my flows is: "fs-file-listener --\> dropdown --\> readfile --\> table" It actually works perfectly. The dropdown receives the existing file names from fs-file-listener and the selected item is send as msg.payload. …

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## [Convert object from sqlite to use in line graph](https://discourse.nodered.org/t/convert-object-from-sqlite-to-use-in-line-graph/85906)

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**Author:** [@telescopio](https://discourse.nodered.org/u/telescopio)\
**Replies:** 1\
**Last updated:** [26 February 2024 03:42 UTC](https://discourse.nodered.org/t/convert-object-from-sqlite-to-use-in-line-graph/85906 "2024-02-26T03:42:23Z")

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Need help, I have a Select command from a Sqlite database that gave me the following timestamp and temp values: \[{"TIMESTAMP":1691538694000,"TEMP":"91.63"},{"TIMESTAMP":1691538699000,"TEMP":"91.67"},{"TIMESTAMP":169153…

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## [Add compass mode to DB2 gauge widget](https://discourse.nodered.org/t/add-compass-mode-to-db2-gauge-widget/85806)

<div class="topic-metadata">

**Author:** [@xx\_Nexus\_xx](https://discourse.nodered.org/u/xx_Nexus_xx)\
**Replies:** 10\
**Last updated:** [26 February 2024 03:50 UTC](https://discourse.nodered.org/t/add-compass-mode-to-db2-gauge-widget/85806 "2024-02-26T03:50:55Z")

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What about COMPASS mode in DB2 Gauge widget? .. will it come later or maybe in another widget?

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## [Dashboard 2 read incoming msg](https://discourse.nodered.org/t/dashboard-2-read-incoming-msg/85888)

<div class="topic-metadata">

**Author:** [@gerry](https://discourse.nodered.org/u/gerry)\
**Replies:** 15\
**Last updated:** [26 February 2024 01:24 UTC](https://discourse.nodered.org/t/dashboard-2-read-incoming-msg/85888 "2024-02-26T01:24:55Z")

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Getting close to the end but missing how to set an incoming msg. In my example I have three buttons and when I press one the others grey out and the one turns green. Pressing any other one works the same. What I want to …

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