# Latest

**URL:** https://discourse.nodered.org/latest.md?page=1003

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

**Page:** 1004

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## [Read current volume on Google Nest Mini](https://discourse.nodered.org/t/read-current-volume-on-google-nest-mini/32645)

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**Author:** [@Defplayr](https://discourse.nodered.org/u/Defplayr)\
**Replies:** 0\
**Last updated:** [9 September 2020 13:46 UTC](https://discourse.nodered.org/t/read-current-volume-on-google-nest-mini/32645 "2020-09-09T13:46:29Z")

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I want to query a Google Nest Mini on my home network and get it's current volume. There are a number of other volume settings (alarm, timers, nightmode), which are easy to query, but not the basic bog standard volume. …

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## [Send data (json format) to webpage node red](https://discourse.nodered.org/t/send-data-json-format-to-webpage-node-red/32585)

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**Author:** [@hassengh](https://discourse.nodered.org/u/hassengh)\
**Replies:** 3\
**Last updated:** [9 September 2020 13:27 UTC](https://discourse.nodered.org/t/send-data-json-format-to-webpage-node-red/32585 "2020-09-09T13:27:59Z")

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Hello , I want get value from devise and send on webpage json format I need to create a page web like there

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## [DeCONZ / Home Assistant: can't get it going with Node Red](https://discourse.nodered.org/t/deconz-home-assistant-cant-get-it-going-with-node-red/32544)

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**Author:** [@Edwinek](https://discourse.nodered.org/u/Edwinek)\
**Replies:** 4\
**Last updated:** [9 September 2020 13:19 UTC](https://discourse.nodered.org/t/deconz-home-assistant-cant-get-it-going-with-node-red/32544 "2020-09-09T13:19:17Z")

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Hi, I've been struggling with this for over a week now, but can't get it running. I'll try to be as complete as possible. First of all: I have DeCONZ working in Home Assistant now, with a ConBee II USB dongle. This too…

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## [Authentication using token and user-password](https://discourse.nodered.org/t/authentication-using-token-and-user-password/32281)

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**Author:** [@crackytsi](https://discourse.nodered.org/u/crackytsi)\
**Replies:** 3\
**Last updated:** [9 September 2020 12:27 UTC](https://discourse.nodered.org/t/authentication-using-token-and-user-password/32281 "2020-09-09T12:27:00Z")

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Hi, I try to authenticate admins based on a header variable (with Nodered 1.1.3). If a token is present i query the LDAP for authentication. If in LDAP the user is not authorized, I resolve the user to null. Actually i…

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## [Help for a loop functiopn](https://discourse.nodered.org/t/help-for-a-loop-functiopn/32598)

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**Author:** [@stich86](https://discourse.nodered.org/u/stich86)\
**Replies:** 15\
**Last updated:** [9 September 2020 12:08 UTC](https://discourse.nodered.org/t/help-for-a-loop-functiopn/32598 "2020-09-09T12:08:56Z")

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Hi guys, i'm trying to create a flow that will output the sensors in alarm to Alexa before launch a script on Home-Assistant that will close all shutter and the arm the alarm. Main problem is when i need to send the al…

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## [How do I achieve this in Node Red](https://discourse.nodered.org/t/how-do-i-achieve-this-in-node-red/32627)

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**Author:** [@blob](https://discourse.nodered.org/u/blob)\
**Replies:** 6\
**Last updated:** [9 September 2020 12:04 UTC](https://discourse.nodered.org/t/how-do-i-achieve-this-in-node-red/32627 "2020-09-09T12:04:18Z")

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Hello, This may seem absolutely easy task for someone out there but I'm stuck on this one. Scenario: I'm trying to achieve something in Node Red that has been done on Visual Basic. A very simple scenario which could …

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## [Keypad + LCD + RFID help needed / issue](https://discourse.nodered.org/t/keypad-lcd-rfid-help-needed-issue/32638)

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**Author:** [@Peter](https://discourse.nodered.org/u/Peter)\
**Replies:** 1\
**Last updated:** [9 September 2020 11:39 UTC](https://discourse.nodered.org/t/keypad-lcd-rfid-help-needed-issue/32638 "2020-09-09T11:39:47Z")

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HI Superstars, I am a newbie and need some urgent help PLEASE. I have a project whereby I need to use a Captive touch keypad, OLED screen, an RFID tag reader. The user needs to identify itself with the RFID tag and in…

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## [Node-red-contrib-tf-model installing problem](https://discourse.nodered.org/t/node-red-contrib-tf-model-installing-problem/32634)

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**Author:** [@maxmsi](https://discourse.nodered.org/u/maxmsi)\
**Replies:** 1\
**Last updated:** [9 September 2020 10:37 UTC](https://discourse.nodered.org/t/node-red-contrib-tf-model-installing-problem/32634 "2020-09-09T10:37:52Z")

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Hi, Im facing with installation problem of : node-red-contrib-tf-model. So, i went throught steps like here : https://www.npmjs.com/package/node-red-contrib-tf-model (skipping the Note section, cause Im working on windo…

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## [How to edit Modbus node](https://discourse.nodered.org/t/how-to-edit-modbus-node/32619)

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**Author:** [@akhtar321h](https://discourse.nodered.org/u/akhtar321h)\
**Replies:** 10\
**Last updated:** [9 September 2020 10:27 UTC](https://discourse.nodered.org/t/how-to-edit-modbus-node/32619 "2020-09-09T10:27:10Z")

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Hello Everyone, I am using \[https://flows.nodered.org/node/node-red-contrib-modbus\] node. But in this node I can not pass inputs. So i want to edit this node or if edit is not possible so how can i create same node.

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## [Ui\_controll\_tabe](https://discourse.nodered.org/t/ui-controll-tabe/32471)

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**Author:** [@edstobi](https://discourse.nodered.org/u/edstobi)\
**Replies:** 2\
**Last updated:** [9 September 2020 09:02 UTC](https://discourse.nodered.org/t/ui-controll-tabe/32471 "2020-09-09T09:02:13Z")

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Hello I have for example 3 (ui\_controll\_tabel) in UI Tabel two questions. Can the symbols under the column Mode be displayed in a different color and i try to pass different color to "legendColor". If I give "legendC…

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## [Line chart for non-timeseries plot: options for temporal tool-tips](https://discourse.nodered.org/t/line-chart-for-non-timeseries-plot-options-for-temporal-tool-tips/32623)

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**Author:** [@wuyuanyi135](https://discourse.nodered.org/u/wuyuanyi135)\
**Replies:** 1\
**Last updated:** [9 September 2020 08:42 UTC](https://discourse.nodered.org/t/line-chart-for-non-timeseries-plot-options-for-temporal-tool-tips/32623 "2020-09-09T08:42:08Z")

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Hello! I am using the chart dashboard node to visualize my experiment workflow. The timeseries plots of the scalars work fine. However, when I tried to plot the Raman Spectroscopy data according to plotting non-timeseri…

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## [Show/hide elements based on array](https://discourse.nodered.org/t/show-hide-elements-based-on-array/32628)

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**Author:** [@GitHubAndDance](https://discourse.nodered.org/u/GitHubAndDance)\
**Replies:** 0\
**Last updated:** [9 September 2020 08:06 UTC](https://discourse.nodered.org/t/show-hide-elements-based-on-array/32628 "2020-09-09T08:06:31Z")

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Hi, I need to show some informative pictures based on array values. I get the array from an SQL database which is used to populate a dropdown. Below I would like pictures of the possible options. So if theres an option…

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## [How to get property of config node](https://discourse.nodered.org/t/how-to-get-property-of-config-node/32615)

<div class="topic-metadata">

**Author:** [@minhhn0205](https://discourse.nodered.org/u/minhhn0205)\
**Replies:** 2\
**Last updated:** [9 September 2020 07:19 UTC](https://discourse.nodered.org/t/how-to-get-property-of-config-node/32615 "2020-09-09T07:19:07Z")

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In the config node node-red-contrib-config, I have set properties: I would like to get these properties in the Function node but an error occurred while trying to execute the following commands: // 1."ReferenceError:…

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## [Issue to read serial port](https://discourse.nodered.org/t/issue-to-read-serial-port/32590)

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**Author:** [@lowlow](https://discourse.nodered.org/u/lowlow)\
**Replies:** 6\
**Last updated:** [9 September 2020 07:00 UTC](https://discourse.nodered.org/t/issue-to-read-serial-port/32590 "2020-09-09T07:00:26Z")

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I'm interfacing a Kern weight scale through serial port with Node-RED. The communication works perfectly in a terminal in both direction. However, I'm only able to write to the serial port with NR with the "serial out" …

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## [Inject node - using the initial "inject once at start" event as a separate trigger when using intervals?](https://discourse.nodered.org/t/inject-node-using-the-initial-inject-once-at-start-event-as-a-separate-trigger-when-using-intervals/32486)

<div class="topic-metadata">

**Author:** [@gadget](https://discourse.nodered.org/u/gadget)\
**Replies:** 4\
**Last updated:** [9 September 2020 06:18 UTC](https://discourse.nodered.org/t/inject-node-using-the-initial-inject-once-at-start-event-as-a-separate-trigger-when-using-intervals/32486 "2020-09-09T06:18:13Z")

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I would like to use the initial fire of the inject node to trigger a flow and from then trigger a different flow at each interval period. Would there be a simple-ish way to achieve this? Thanks!

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## [COVID-19 status by country (update)](https://discourse.nodered.org/t/covid-19-status-by-country-update/32602)

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**Author:** [@janvda](https://discourse.nodered.org/u/janvda)\
**Replies:** 2\
**Last updated:** [9 September 2020 06:17 UTC](https://discourse.nodered.org/t/covid-19-status-by-country-update/32602 "2020-09-09T06:17:16Z")

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I have extended my github project which is also described in closed forum topic: https://discourse.nodered.org/t/covid-19-status-by-country/28743 Extension: Now it also reports for the US states the reproduction …

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## [Node-red-contrib-mssql-plus 0.5.1 --\> Can't connect to MSSQL](https://discourse.nodered.org/t/node-red-contrib-mssql-plus-0-5-1-cant-connect-to-mssql/32501)

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**Author:** [@kabuto-gyu](https://discourse.nodered.org/u/kabuto-gyu)\
**Replies:** 14\
**Last updated:** [9 September 2020 03:16 UTC](https://discourse.nodered.org/t/node-red-contrib-mssql-plus-0-5-1-cant-connect-to-mssql/32501 "2020-09-09T03:16:37Z")

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Hello guys! I tried to query simple data from local MS SQL but not success. I also tried with another SQL Client software with same configuration, it worked well. I tried to reinstall it and run again, but it does…

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## [Does node-red support FormData()?](https://discourse.nodered.org/t/does-node-red-support-formdata/32594)

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**Author:** [@QIoT](https://discourse.nodered.org/u/QIoT)\
**Replies:** 2\
**Last updated:** [9 September 2020 00:30 UTC](https://discourse.nodered.org/t/does-node-red-support-formdata/32594 "2020-09-09T00:30:26Z")

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Hi, I need to use Form data to send messages. So used this var formData = new FormData(); However, I got a reference error: FormData is not defined. How to use FormData and other syntax supported by js?

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## [How to create a definition file to use in multiple nodes](https://discourse.nodered.org/t/how-to-create-a-definition-file-to-use-in-multiple-nodes/32606)

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**Author:** [@minhhn0205](https://discourse.nodered.org/u/minhhn0205)\
**Replies:** 8\
**Last updated:** [8 September 2020 22:09 UTC](https://discourse.nodered.org/t/how-to-create-a-definition-file-to-use-in-multiple-nodes/32606 "2020-09-08T22:09:04Z")

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I would like to create a definition file containing general information such as path, constants, ... to use in multiple nodes, I think it is related to global variable, but don't know how is it good. Can you please sug…

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## [Uibuilder v2: Dynamically loading .vue files](https://discourse.nodered.org/t/uibuilder-v2-dynamically-loading-vue-files/14455)

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**Author:** [@TotallyInformation](https://discourse.nodered.org/u/TotallyInformation)\
**Replies:** 3\
**Last updated:** [8 September 2020 22:01 UTC](https://discourse.nodered.org/t/uibuilder-v2-dynamically-loading-vue-files/14455 "2020-09-08T22:01:18Z")

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Hi all, Another WIKI article for uibuilder v2. This time on how to dynamically load .vue single file components without needing a build step. While build steps will be more efficient, lots of things that we do with Nod…

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## [Unable to send cmnd/nodemcu/power2 to relay](https://discourse.nodered.org/t/unable-to-send-cmnd-nodemcu-power2-to-relay/32577)

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**Author:** [@mandeepmails](https://discourse.nodered.org/u/mandeepmails)\
**Replies:** 18\
**Last updated:** [8 September 2020 20:50 UTC](https://discourse.nodered.org/t/unable-to-send-cmnd-nodemcu-power2-to-relay/32577 "2020-09-08T20:50:48Z")

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Hi All, very beginner trying to control 8ch relay with nodemcu (running tasmota) relay 1 works but not relay2 or relay3 etc mqtt broker/server setup - all ok able to control 2 sonoff devices (running tasmota) - all ok …

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## [Refresh Table Only When Visible?](https://discourse.nodered.org/t/refresh-table-only-when-visible/32592)

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**Author:** [@Nodi.Rubrum](https://discourse.nodered.org/u/Nodi.Rubrum)\
**Replies:** 2\
**Last updated:** [8 September 2020 19:25 UTC](https://discourse.nodered.org/t/refresh-table-only-when-visible/32592 "2020-09-08T19:25:02Z")

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Refresh Table Only When Visible? I think this is beyond what the default dashboard or such can do? I want a table to update every few seconds, but don't want it to happen unless the parent table is active, selected, or…

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## [Handling retry on failure from HTTP nodes](https://discourse.nodered.org/t/handling-retry-on-failure-from-http-nodes/32600)

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**Author:** [@kartikn](https://discourse.nodered.org/u/kartikn)\
**Replies:** 3\
**Last updated:** [8 September 2020 19:09 UTC](https://discourse.nodered.org/t/handling-retry-on-failure-from-http-nodes/32600 "2020-09-08T19:09:20Z")

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Hi, I am trying to implement a simple HTTP call with retry on failure. The failure could be a network issue that generates an "exception" or a service failure, where the HTTP call returns a failure code (say, not 200) a…

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## [Run python script in Node red and export with MQTT](https://discourse.nodered.org/t/run-python-script-in-node-red-and-export-with-mqtt/32548)

<div class="topic-metadata">

**Author:** [@Sidr](https://discourse.nodered.org/u/Sidr)\
**Replies:** 15\
**Last updated:** [8 September 2020 16:47 UTC](https://discourse.nodered.org/t/run-python-script-in-node-red-and-export-with-mqtt/32548 "2020-09-08T16:47:27Z")

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I have connected a CCS811 sensor with Raspberry PI and I have written a python script to output/print the sensor values. It works fine in the linux terminal. What are the methods to read the sensor data in Node-red and …

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## [Node Red with django CSRF](https://discourse.nodered.org/t/node-red-with-django-csrf/32500)

<div class="topic-metadata">

**Author:** [@QIoT](https://discourse.nodered.org/u/QIoT)\
**Replies:** 2\
**Last updated:** [8 September 2020 13:43 UTC](https://discourse.nodered.org/t/node-red-with-django-csrf/32500 "2020-09-08T13:43:22Z")

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Hi, I need to establish communication with django under csrf protection. After getting the token, how to add the token and cookie to the header for post request?

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## [Node Red HTML Node Can't Read Past FRAME or FRAMESET?](https://discourse.nodered.org/t/node-red-html-node-cant-read-past-frame-or-frameset/32578)

<div class="topic-metadata">

**Author:** [@Nodi.Rubrum](https://discourse.nodered.org/u/Nodi.Rubrum)\
**Replies:** 3\
**Last updated:** [8 September 2020 13:37 UTC](https://discourse.nodered.org/t/node-red-html-node-cant-read-past-frame-or-frameset/32578 "2020-09-08T13:37:38Z")

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Node Red HTML Node Can't Read Past FRAME or FRAMESET? Noticed the curl has the same issue actually. I wrote a python script some ago that can parse HTML status from my cable modem. So I can tell when my ISP is doing s…

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## [Group Merge makes group loosing it's properties](https://discourse.nodered.org/t/group-merge-makes-group-loosing-its-properties/32588)

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**Author:** [@pgScorpio](https://discourse.nodered.org/u/pgScorpio)\
**Replies:** 2\
**Last updated:** [8 September 2020 12:55 UTC](https://discourse.nodered.org/t/group-merge-makes-group-loosing-its-properties/32588 "2020-09-08T12:55:22Z")

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Hi Folks ! I love the new grouping feature in node-red (v1.1.3), but besides the "freeze" problem with cut&paste (as already addressed in another topic) I found another issue with groups. When using groups-\>'Merge sele…

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## [Inject node firing after deploy](https://discourse.nodered.org/t/inject-node-firing-after-deploy/32586)

<div class="topic-metadata">

**Author:** [@sylvanoMTL](https://discourse.nodered.org/u/sylvanoMTL)\
**Replies:** 3\
**Last updated:** [8 September 2020 12:29 UTC](https://discourse.nodered.org/t/inject-node-firing-after-deploy/32586 "2020-09-08T12:29:23Z")

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I have edited my post, after some investigation: Hi, I have an issue with my inject node. I configured it as pictured bellow, but it fires as soon as I deploy the application: My original flow consist of the inject …

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## [Convert text to json](https://discourse.nodered.org/t/convert-text-to-json/32558)

<div class="topic-metadata">

**Author:** [@niclas.w82](https://discourse.nodered.org/u/niclas.w82)\
**Replies:** 11\
**Last updated:** [8 September 2020 10:54 UTC](https://discourse.nodered.org/t/convert-text-to-json/32558 "2020-09-08T10:54:06Z")

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Hi. Any idea how I should do with this output. I should want to convert it to json format somehow so i can point out the path to different values easily. \[{"id":"339b5903.704d06","type":"debug","z":"7d7120c8.6f011","na…

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## [Dashboard installation Error](https://discourse.nodered.org/t/dashboard-installation-error/32545)

<div class="topic-metadata">

**Author:** [@Kyra](https://discourse.nodered.org/u/Kyra)\
**Replies:** 6\
**Last updated:** [8 September 2020 09:52 UTC](https://discourse.nodered.org/t/dashboard-installation-error/32545 "2020-09-08T09:52:23Z")

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Hello, I try to install node-red dashboard in a node-red environment. Node-red is functioning normal and the dashboard items are added. During installation I get the installation log as below. When I try to use a dasb…

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