# Latest

**URL:** https://discourse.nodered.org/latest.md?page=600

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

**Page:** 601

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## [How can I "freeze" and "scale" dashboard layout?](https://discourse.nodered.org/t/how-can-i-freeze-and-scale-dashboard-layout/60257)

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**Author:** [@dr\_cave\_dweller](https://discourse.nodered.org/u/dr_cave_dweller)\
**Replies:** 3\
**Last updated:** [27 March 2022 12:38 UTC](https://discourse.nodered.org/t/how-can-i-freeze-and-scale-dashboard-layout/60257 "2022-03-27T12:38:31Z")

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Hello, I am using a dashboard that I specifically designed for a touchscreen width of 1920 resolution. I need to fully control exactly where every container box is. I now need to remotely log into the dashboard webpage …

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## [Nodered and mqtt : parsing a message](https://discourse.nodered.org/t/nodered-and-mqtt-parsing-a-message/60401)

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**Author:** [@Bercolly](https://discourse.nodered.org/u/Bercolly)\
**Replies:** 2\
**Last updated:** [27 March 2022 12:37 UTC](https://discourse.nodered.org/t/nodered-and-mqtt-parsing-a-message/60401 "2022-03-27T12:37:40Z")

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I am new to using nodered. I'm having quite a bit of difficulty in transforming and processing mqtt messages. The goal is to transform a mqtt message and update the HA UI. I created all the data as input\_text, the dat…

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## [Important to my work future, Can i use nod-red to make REST API for big websites](https://discourse.nodered.org/t/important-to-my-work-future-can-i-use-nod-red-to-make-rest-api-for-big-websites/60375)

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**Author:** [@xtwiny](https://discourse.nodered.org/u/xtwiny)\
**Replies:** 8\
**Last updated:** [27 March 2022 11:06 UTC](https://discourse.nodered.org/t/important-to-my-work-future-can-i-use-nod-red-to-make-rest-api-for-big-websites/60375 "2022-03-27T11:06:53Z")

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Dear node-red community my question is can I use nod-red to make REST API for big websites, like ERP system for a university, I have used node-red for one year and I love it, making for example The basic system (store…

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## [Node-red can't debug.](https://discourse.nodered.org/t/node-red-cant-debug/60393)

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**Author:** [@dongfangwuxing](https://discourse.nodered.org/u/dongfangwuxing)\
**Replies:** 1\
**Last updated:** [27 March 2022 07:50 UTC](https://discourse.nodered.org/t/node-red-cant-debug/60393 "2022-03-27T07:50:52Z")

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Your flow credentials file is encrypted using a system-generated key. If the system-generated key is lost for any reason, your credentials file will not be recoverable, you will have to delete it and re-enter your crede…

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## [Switch not switching no matter what I try (newbie)](https://discourse.nodered.org/t/switch-not-switching-no-matter-what-i-try-newbie/60364)

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**Author:** [@RustyV](https://discourse.nodered.org/u/RustyV)\
**Replies:** 9\
**Last updated:** [27 March 2022 02:18 UTC](https://discourse.nodered.org/t/switch-not-switching-no-matter-what-i-try-newbie/60364 "2022-03-27T02:18:39Z")

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Hi I am trying to detect a particular push button switch being pushed, the payload contains multiple objects. I have used the change node to make a topic sensors/status/index and trying to switch on its value but no matt…

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## [Customize default/core nodes in user directory upon recreation/restart](https://discourse.nodered.org/t/customize-default-core-nodes-in-user-directory-upon-recreation-restart/60322)

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**Author:** [@SnibbitySnab](https://discourse.nodered.org/u/SnibbitySnab)\
**Replies:** 14\
**Last updated:** [27 March 2022 01:36 UTC](https://discourse.nodered.org/t/customize-default-core-nodes-in-user-directory-upon-recreation-restart/60322 "2022-03-27T01:36:25Z")

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Essentially, I regularly delete my user directory so that it may be automatically recreated upon restart of Node-RED, and I have to manually reinstall some contrib nodes that I regularly use. Which script do I need to m…

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## [Problem adding flow to Node-RED flow library](https://discourse.nodered.org/t/problem-adding-flow-to-node-red-flow-library/60112)

<div class="topic-metadata">

**Author:** [@HaroldPetersInskipp](https://discourse.nodered.org/u/HaroldPetersInskipp)\
**Replies:** 7\
**Last updated:** [27 March 2022 00:37 UTC](https://discourse.nodered.org/t/problem-adding-flow-to-node-red-flow-library/60112 "2022-03-27T00:37:26Z")

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I can't seem to add a flow to the library. I'm getting 413 Request Entity Too Large from the dev console. The flow I'm attempting to upload can't be posted here due to the character limit, but is available at Learn JSONa…

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## [\[Feature Request\] \[Smooth\] Add median filter to node-red-node-smooth](https://discourse.nodered.org/t/feature-request-smooth-add-median-filter-to-node-red-node-smooth/60359)

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**Author:** [@andowinger](https://discourse.nodered.org/u/andowinger)\
**Replies:** 2\
**Last updated:** [26 March 2022 21:44 UTC](https://discourse.nodered.org/t/feature-request-smooth-add-median-filter-to-node-red-node-smooth/60359 "2022-03-26T21:44:13Z")

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It would be nice if the "smooth" node (Sign in to GitHub · GitHub) was supporting a window based median filter. The approach would be, that for each window, something like the following statements would be excecuted f…

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## [File data from Python, send it by MQTT to chart node and plot](https://discourse.nodered.org/t/file-data-from-python-send-it-by-mqtt-to-chart-node-and-plot/60258)

<div class="topic-metadata">

**Author:** [@alfschuster](https://discourse.nodered.org/u/alfschuster)\
**Replies:** 12\
**Last updated:** [26 March 2022 21:12 UTC](https://discourse.nodered.org/t/file-data-from-python-send-it-by-mqtt-to-chart-node-and-plot/60258 "2022-03-26T21:12:13Z")

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Hi, I would like to chart following example data which I read from a Python file, transmit it by means of JSON an MQTT to my Node-red Dashboard and chart it. nodedata = \[{"datum": 1500049458014,"tempc": 15.7}, {"datum"…

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## [Uibuilder new GitHub vNext release \`beta.1\`](https://discourse.nodered.org/t/uibuilder-new-github-vnext-release-beta-1/60382)

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**Author:** [@TotallyInformation](https://discourse.nodered.org/u/TotallyInformation)\
**Replies:** 0\
**Last updated:** [26 March 2022 20:59 UTC](https://discourse.nodered.org/t/uibuilder-new-github-vnext-release-beta-1/60382 "2022-03-26T20:59:31Z")

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Another step closer to release :slight\_smile: To install from GitHub, npm install totallyinformation/node-red-contrib-uibuilder#vNext. I'm afraid that there has been a bit of a gap in releases recently, sorry about tha…

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## [Mysql query with json fields](https://discourse.nodered.org/t/mysql-query-with-json-fields/60256)

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**Author:** [@rex](https://discourse.nodered.org/u/rex)\
**Replies:** 10\
**Last updated:** [26 March 2022 14:43 UTC](https://discourse.nodered.org/t/mysql-query-with-json-fields/60256 "2022-03-26T14:43:52Z")

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Using Node-red I read from MySQL (MariaDB) where one field is in JSON format (so longtext). I use this to build one API get. The query returns an array of strings (for the JSON field) and the http response node return da…

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## [Remote (free and secure) access to your node-red instance at home](https://discourse.nodered.org/t/remote-free-and-secure-access-to-your-node-red-instance-at-home/60353)

<div class="topic-metadata">

**Author:** [@lu4t](https://discourse.nodered.org/u/lu4t)\
**Replies:** 3\
**Last updated:** [26 March 2022 14:02 UTC](https://discourse.nodered.org/t/remote-free-and-secure-access-to-your-node-red-instance-at-home/60353 "2022-03-26T14:02:50Z")

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Hi all... last week we created this video playlist to show how to set up remote access to stuff on your home-Labs, for free, using cloudflare tunnels. The examples include node-red and HA, but would work with anything e…

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## [Organizing multiple flows or multiple NR instances?](https://discourse.nodered.org/t/organizing-multiple-flows-or-multiple-nr-instances/60361)

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**Author:** [@Damorck](https://discourse.nodered.org/u/Damorck)\
**Replies:** 3\
**Last updated:** [26 March 2022 11:35 UTC](https://discourse.nodered.org/t/organizing-multiple-flows-or-multiple-nr-instances/60361 "2022-03-26T11:35:48Z")

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Hi all I often end up with multiple (like in many) flows in my NodeRED setup, making it a bit challenging navigating through flows. Typical I have 3-4 flows for a project that gets duplicated, generating more flows. I …

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## [Split-Node an using only couple payloads](https://discourse.nodered.org/t/split-node-an-using-only-couple-payloads/60003)

<div class="topic-metadata">

**Author:** [@Jrlohni](https://discourse.nodered.org/u/Jrlohni)\
**Replies:** 6\
**Last updated:** [26 March 2022 11:18 UTC](https://discourse.nodered.org/t/split-node-an-using-only-couple-payloads/60003 "2022-03-26T11:18:02Z")

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Hi! I try using the split-node for cut some lines of a payload from a file and use them for a notification on my mobile. My problem is to join them after splitting to get only one notification with all informations. Fo…

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## [Looking for help with the eztimer](https://discourse.nodered.org/t/looking-for-help-with-the-eztimer/60336)

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**Author:** [@Jez](https://discourse.nodered.org/u/Jez)\
**Replies:** 2\
**Last updated:** [26 March 2022 10:07 UTC](https://discourse.nodered.org/t/looking-for-help-with-the-eztimer/60336 "2022-03-26T10:07:36Z")

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Hi All, I’m trying build an irrigation flow using the eztimer but having trouble getting it to work. I’m trying to use the dashboard to control the eztimer functions. I would like to set an automatic schedule with days …

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## [Sleep Sensor flow options](https://discourse.nodered.org/t/sleep-sensor-flow-options/60356)

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**Author:** [@DiverRich](https://discourse.nodered.org/u/DiverRich)\
**Replies:** 1\
**Last updated:** [26 March 2022 08:11 UTC](https://discourse.nodered.org/t/sleep-sensor-flow-options/60356 "2022-03-26T08:11:44Z")

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Hello, another new node-red user here. I've been puzzling over how to solve a problem that drove me to using node-red in the first place. For what it's worth, I'm using node-red with Hubitat. So, here is what I'm trying …

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## [How to match last saved file with inject data](https://discourse.nodered.org/t/how-to-match-last-saved-file-with-inject-data/60360)

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**Author:** [@muharremsari](https://discourse.nodered.org/u/muharremsari)\
**Replies:** 0\
**Last updated:** [26 March 2022 06:35 UTC](https://discourse.nodered.org/t/how-to-match-last-saved-file-with-inject-data/60360 "2022-03-26T06:35:15Z")

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I have a recorded files on external disk or somewhere My goals is listing laste recorded file shown on dashboard with matched input data. So i have two data; Recorded file ftom Thermal camera triggered by self and inp…

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## [How to extract only Temperature from a Msg.Payload : Object](https://discourse.nodered.org/t/how-to-extract-only-temperature-from-a-msg-payload-object/60316)

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**Author:** [@andrea](https://discourse.nodered.org/u/andrea)\
**Replies:** 6\
**Last updated:** [26 March 2022 01:21 UTC](https://discourse.nodered.org/t/how-to-extract-only-temperature-from-a-msg-payload-object/60316 "2022-03-26T01:21:00Z")

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Hi, I just want to visualise the 2 temperatures coming from 2 DS18B20 connected on port 4. For some reason the payload is not just a number but it containd the id and the temperature. How can I send only the value of t…

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## [Python to Node Red](https://discourse.nodered.org/t/python-to-node-red/60308)

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**Author:** [@TEdge](https://discourse.nodered.org/u/TEdge)\
**Replies:** 23\
**Last updated:** [25 March 2022 22:07 UTC](https://discourse.nodered.org/t/python-to-node-red/60308 "2022-03-25T22:07:51Z")

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I am using a Raspberry Pi and node red as a monitor for my motorhome. I have added a cheap flow sensor to monitor water use. Originally I tried to use a GPIO node to count the pulses but the results are inconsistent. …

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## [USB unmount: target is busy](https://discourse.nodered.org/t/usb-unmount-target-is-busy/60344)

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**Author:** [@WBr](https://discourse.nodered.org/u/WBr)\
**Replies:** 8\
**Last updated:** [25 March 2022 21:50 UTC](https://discourse.nodered.org/t/usb-unmount-target-is-busy/60344 "2022-03-25T21:50:22Z")

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Dear all, I have a problem with my USB. I cannot seem to eject it because the target is busy. I use it to store sensor data from my flow as .CSV The question is: How can I "un-busy" my USB?

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## [Help with syntax for flow.get context](https://discourse.nodered.org/t/help-with-syntax-for-flow-get-context/60354)

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**Author:** [@grant1](https://discourse.nodered.org/u/grant1)\
**Replies:** 6\
**Last updated:** [25 March 2022 21:20 UTC](https://discourse.nodered.org/t/help-with-syntax-for-flow-get-context/60354 "2022-03-25T21:20:03Z")

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I am still trying to learn about flow context. I have set up the following: I want to multiply both of the above by 30 and then send into Influx2. However, I am getting the error shown below. I have tried various…

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## [Db2 for i won't install](https://discourse.nodered.org/t/db2-for-i-wont-install/60060)

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**Author:** [@tes](https://discourse.nodered.org/u/tes)\
**Replies:** 9\
**Last updated:** [25 March 2022 18:59 UTC](https://discourse.nodered.org/t/db2-for-i-wont-install/60060 "2022-03-25T18:59:46Z")

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I'm getting the following cryptic error. Any idea what this is about? I'm installing this thru SSH against an IBM i at V7r3. node -v v14.18.3 node-red -v v2.2.2

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## [Is there a (simple) way to train a node to recognize a specific sound?](https://discourse.nodered.org/t/is-there-a-simple-way-to-train-a-node-to-recognize-a-specific-sound/60352)

<div class="topic-metadata">

**Author:** [@oliver](https://discourse.nodered.org/u/oliver)\
**Replies:** 2\
**Last updated:** [25 March 2022 18:08 UTC](https://discourse.nodered.org/t/is-there-a-simple-way-to-train-a-node-to-recognize-a-specific-sound/60352 "2022-03-25T18:08:41Z")

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After 3 years hearing the neighbor's dog many hundred times a days, it is time to find some help to stop this before I get a nervous breakdown. I want to count the exact times the dog barks and log when he barks, so my q…

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## [Overwriting json null template with new values from API](https://discourse.nodered.org/t/overwriting-json-null-template-with-new-values-from-api/60346)

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**Author:** [@Romprod](https://discourse.nodered.org/u/Romprod)\
**Replies:** 1\
**Last updated:** [25 March 2022 16:04 UTC](https://discourse.nodered.org/t/overwriting-json-null-template-with-new-values-from-api/60346 "2022-03-25T16:04:56Z")

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Hey, I have a JSON 'template' which has been built out with null values in each of the fields and I'd like to then pull new data from an API and overwrite the fields with the new data but I'm unsure how to do this last …

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## [Missing notification node when user starts to use tab for the first time](https://discourse.nodered.org/t/missing-notification-node-when-user-starts-to-use-tab-for-the-first-time/60347)

<div class="topic-metadata">

**Author:** [@QGIO](https://discourse.nodered.org/u/QGIO)\
**Replies:** 0\
**Last updated:** [25 March 2022 15:50 UTC](https://discourse.nodered.org/t/missing-notification-node-when-user-starts-to-use-tab-for-the-first-time/60347 "2022-03-25T15:50:04Z")

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I have a UI where I need to fill these fields in order to add a new instrument in my sql database. For most of the field there is a check: in case of some empty field or CODIFICA already present in the database, a po…

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## [Cant Install "node-red-contrib-usbhid" node](https://discourse.nodered.org/t/cant-install-node-red-contrib-usbhid-node/59685)

<div class="topic-metadata">

**Author:** [@jts450](https://discourse.nodered.org/u/jts450)\
**Replies:** 10\
**Last updated:** [25 March 2022 15:18 UTC](https://discourse.nodered.org/t/cant-install-node-red-contrib-usbhid-node/59685 "2022-03-25T15:18:24Z")

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When installing the following node: I an getting this error? C:\\Users\\Justst03\>npm install node-red-contrib-usbhid npm ERR! code 1 npm ERR! path C:\\Users\\Justst03\\node\_modules\\node-hid npm ERR! command failed npm …

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## [Node red on os64](https://discourse.nodered.org/t/node-red-on-os64/60312)

<div class="topic-metadata">

**Author:** [@gerry](https://discourse.nodered.org/u/gerry)\
**Replies:** 2\
**Last updated:** [25 March 2022 14:39 UTC](https://discourse.nodered.org/t/node-red-on-os64/60312 "2022-03-25T14:39:00Z")

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As posted in another thread pi os64 is out officially. Loaded up a pi 4 with 4 gig, installed os64 and using the node red install script node red goes in with no problems , reloaded all the flows and it works flawless. …

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## [Dropdown node does not show query result when it is a array\[1\]](https://discourse.nodered.org/t/dropdown-node-does-not-show-query-result-when-it-is-a-array-1/60325)

<div class="topic-metadata">

**Author:** [@QGIO](https://discourse.nodered.org/u/QGIO)\
**Replies:** 8\
**Last updated:** [25 March 2022 13:40 UTC](https://discourse.nodered.org/t/dropdown-node-does-not-show-query-result-when-it-is-a-array-1/60325 "2022-03-25T13:40:26Z")

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Hello forum, I have a problem with the drop down node. I make a query by SQL node to a Database table and I get the desired result. This result is then linked to a dropdown node, but I have a problem just in one case. …

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## [Need help with creating an js object](https://discourse.nodered.org/t/need-help-with-creating-an-js-object/60339)

<div class="topic-metadata">

**Author:** [@juntiedt](https://discourse.nodered.org/u/juntiedt)\
**Replies:** 4\
**Last updated:** [25 March 2022 13:07 UTC](https://discourse.nodered.org/t/need-help-with-creating-an-js-object/60339 "2022-03-25T13:07:21Z")

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My case: I want to create an object which takes the value of x as value of the key location. the following code does not work :frowning: context.set('location','UGSK'); let x = context.get('location').valueOf(); msg.…

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## [Improvement: header&footer](https://discourse.nodered.org/t/improvement-header-footer/502)

<div class="topic-metadata">

**Author:** [@Dani](https://discourse.nodered.org/u/Dani)\
**Replies:** 25\
**Last updated:** [25 March 2022 12:49 UTC](https://discourse.nodered.org/t/improvement-header-footer/502 "2022-03-25T12:49:01Z")

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Hi! I’d like to make a GUI with a header and a footer. Now I have to add the groups on every page with the same functionality, and the code looks very disgusting. Is it possible to add a new feature that enables a cus…

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