# Latest

**URL:** https://discourse.nodered.org/latest.md?page=894

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

**Page:** 895

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## [Converting code to a node](https://discourse.nodered.org/t/converting-code-to-a-node/40294)

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**Author:** [@V\_Tom](https://discourse.nodered.org/u/V_Tom)\
**Replies:** 2\
**Last updated:** [3 February 2021 20:57 UTC](https://discourse.nodered.org/t/converting-code-to-a-node/40294 "2021-02-03T20:57:07Z")

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Hey Some years ago, I was interested in this project: https://github.com/crjens/PiPowerMeter I got some of his boards and after quite some tinkering, I got it working. Because I was not happy with the accuracy and did…

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## [SteelSeries Windows Load](https://discourse.nodered.org/t/steelseries-windows-load/40335)

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**Author:** [@KPD](https://discourse.nodered.org/u/KPD)\
**Replies:** 0\
**Last updated:** [3 February 2021 20:36 UTC](https://discourse.nodered.org/t/steelseries-windows-load/40335 "2021-02-03T20:36:45Z")

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I am (brand new at this and) adding node-red to my laptop for my boat dashboard implementation, but for some reason I can't seem to set up the SeelSeries in Win10 so that it's accessible. Not hard on the Pi, but I'm doi…

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## [Message Datagram with fixed length, padding texts](https://discourse.nodered.org/t/message-datagram-with-fixed-length-padding-texts/40326)

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**Author:** [@wvsbsp](https://discourse.nodered.org/u/wvsbsp)\
**Replies:** 1\
**Last updated:** [3 February 2021 19:57 UTC](https://discourse.nodered.org/t/message-datagram-with-fixed-length-padding-texts/40326 "2021-02-03T19:57:09Z")

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I try to create a datagram that contains variable texts. The datagram has fixed lenght for the texts, so i need ti add trailing blanks to the datagram. unfortunately, JavaScript automaticalls removes trailing blanks and…

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## [Getting Continuous Output from Python Script in Node-RED](https://discourse.nodered.org/t/getting-continuous-output-from-python-script-in-node-red/40327)

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**Author:** [@hkayan](https://discourse.nodered.org/u/hkayan)\
**Replies:** 2\
**Last updated:** [3 February 2021 18:59 UTC](https://discourse.nodered.org/t/getting-continuous-output-from-python-script-in-node-red/40327 "2021-02-03T18:59:59Z")

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Hello, Sorry the question might be so trivial, but I could not make it work, and I am not getting any errors, so couldn't fix the issue. I have a python3 script located at /home/pi/Zigbee\_v1.py. The script gets data fr…

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## [Saving and accessing bi-dimensional variables](https://discourse.nodered.org/t/saving-and-accessing-bi-dimensional-variables/40304)

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**Author:** [@fmarzocca](https://discourse.nodered.org/u/fmarzocca)\
**Replies:** 6\
**Last updated:** [3 February 2021 16:01 UTC](https://discourse.nodered.org/t/saving-and-accessing-bi-dimensional-variables/40304 "2021-02-03T16:01:08Z")

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Hi, my flows should make use of several variables with this format: var1 = "0615", "value1" var2 = "875", "value2" var3 = "745", "value3" ... I am trying to set/get the variables, but I got lost.... Thanks for any…

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## [Writing Node Parameters Dynamically](https://discourse.nodered.org/t/writing-node-parameters-dynamically/40301)

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**Author:** [@cverster](https://discourse.nodered.org/u/cverster)\
**Replies:** 5\
**Last updated:** [3 February 2021 15:47 UTC](https://discourse.nodered.org/t/writing-node-parameters-dynamically/40301 "2021-02-03T15:47:00Z")

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Hi all. I'm trying to write multiple values to influx DB through a single node. What confuses me about the node-red-contrib-influxdb batch node is that I'm not sure where to specify the database I want to write to, so I'…

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## [How to use MAX7219 8x8 LED matrix display](https://discourse.nodered.org/t/how-to-use-max7219-8x8-led-matrix-display/2967)

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**Author:** [@mshaz](https://discourse.nodered.org/u/mshaz)\
**Replies:** 16\
**Last updated:** [3 February 2021 15:45 UTC](https://discourse.nodered.org/t/how-to-use-max7219-8x8-led-matrix-display/2967 "2021-02-03T15:45:44Z")

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Hi i can't find any examples how to use the 8x8 LED matrix display in node-red . I need help

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## [Inject node documentation issue](https://discourse.nodered.org/t/inject-node-documentation-issue/40271)

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**Author:** [@drmibell](https://discourse.nodered.org/u/drmibell)\
**Replies:** 5\
**Last updated:** [3 February 2021 13:34 UTC](https://discourse.nodered.org/t/inject-node-documentation-issue/40271 "2021-02-03T13:34:19Z")

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I just recently "discovered" that when the inject node is running in its Repeat mode it can still be triggered by clicking the button in the editor. Neither the documentation page nor the help text in the editor quite m…

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## [Unable to change layout group](https://discourse.nodered.org/t/unable-to-change-layout-group/40309)

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**Author:** [@samezrp](https://discourse.nodered.org/u/samezrp)\
**Replies:** 2\
**Last updated:** [3 February 2021 14:01 UTC](https://discourse.nodered.org/t/unable-to-change-layout-group/40309 "2021-02-03T14:01:43Z")

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Hi, Yesterday I reinstalled my Ubuntu and installed brand new Node-red with newest 1.28 version. Since then I have problem using change group layout. I cannot move items on layout: Cursor is changed but clicking/hold…

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## [Mqtt to Modbus Incorrect Value](https://discourse.nodered.org/t/mqtt-to-modbus-incorrect-value/40232)

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**Author:** [@vaughan.mcd](https://discourse.nodered.org/u/vaughan.mcd)\
**Replies:** 10\
**Last updated:** [3 February 2021 13:28 UTC](https://discourse.nodered.org/t/mqtt-to-modbus-incorrect-value/40232 "2021-02-03T13:28:51Z")

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I am having trouble with mqtt to modbus. Off AirCon/SetOnOff=0 On AirCon/SetOnOff=1 Off modbus {"address":0,"state":true} On modbus {"address":0,"state":true} as you can see no matter if mqtt receives a message 0 …

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## [Start the dropdown values on button click](https://discourse.nodered.org/t/start-the-dropdown-values-on-button-click/39423)

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**Author:** [@sanket](https://discourse.nodered.org/u/sanket)\
**Replies:** 36\
**Last updated:** [3 February 2021 10:49 UTC](https://discourse.nodered.org/t/start-the-dropdown-values-on-button-click/39423 "2021-02-03T10:49:10Z")

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I have two dropdowns on dashboard but when I select dropdown values it gets automatically starts. I want to start dropdown values on button click. How to achieve this functionality.

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## [Suggestions from a Redmatic user](https://discourse.nodered.org/t/suggestions-from-a-redmatic-user/40297)

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**Author:** [@hlwerschner](https://discourse.nodered.org/u/hlwerschner)\
**Replies:** 1\
**Last updated:** [3 February 2021 10:54 UTC](https://discourse.nodered.org/t/suggestions-from-a-redmatic-user/40297 "2021-02-03T10:54:28Z")

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Hi, I am new to Node-Red - using it from Redmatic inside - and could not find a specific "suggestions" category, so I am inserting my ideas here: when creating a flow in my working window (I use a Win 10 PC with 4K m…

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## [Node Red Deploy button not working](https://discourse.nodered.org/t/node-red-deploy-button-not-working/40280)

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**Author:** [@tonyyanniello](https://discourse.nodered.org/u/tonyyanniello)\
**Replies:** 5\
**Last updated:** [3 February 2021 10:16 UTC](https://discourse.nodered.org/t/node-red-deploy-button-not-working/40280 "2021-02-03T10:16:03Z")

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Hi all. I seem to have broken my deploy button within Node-Red and I believe the issue has to do with a ton of unused labels under the Configuration tab. One post recommended deleting all of these and trying to deploy,…

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## [How can display resistor value greater than 390 ohms?](https://discourse.nodered.org/t/how-can-display-resistor-value-greater-than-390-ohms/40225)

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**Author:** [@betyty](https://discourse.nodered.org/u/betyty)\
**Replies:** 3\
**Last updated:** [3 February 2021 10:08 UTC](https://discourse.nodered.org/t/how-can-display-resistor-value-greater-than-390-ohms/40225 "2021-02-03T10:08:21Z")

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hi, i am using rtd-rpi board, and the maximum resistance actually measures 390 ohms. so when measuring resistances above 390 ohms the results are all around 410 ohms. (for example: I measured the resistance of the Heat…

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## [Super Noob Question Concerning Referencing msg.payload in the next node](https://discourse.nodered.org/t/super-noob-question-concerning-referencing-msg-payload-in-the-next-node/40266)

<div class="topic-metadata">

**Author:** [@westek](https://discourse.nodered.org/u/westek)\
**Replies:** 7\
**Last updated:** [3 February 2021 09:52 UTC](https://discourse.nodered.org/t/super-noob-question-concerning-referencing-msg-payload-in-the-next-node/40266 "2021-02-03T09:52:31Z")

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Its a simple question, I'm sure. I have a text input box that is connected to a change node to add more text to the already existing text in msg.payload. For instance the text box passes "This is a test" I want to then a…

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## [HTML connect to dropdown node](https://discourse.nodered.org/t/html-connect-to-dropdown-node/40284)

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**Author:** [@Jamil100](https://discourse.nodered.org/u/Jamil100)\
**Replies:** 2\
**Last updated:** [3 February 2021 08:26 UTC](https://discourse.nodered.org/t/html-connect-to-dropdown-node/40284 "2021-02-03T08:26:52Z")

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Hello everyone, I have created a template that when you press an item in the dropdown list, it makes the word "Machine" be bold. Something like this below. But I would also like to have the feature that when I press the…

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## [How to select item in dropdown by clicking picture](https://discourse.nodered.org/t/how-to-select-item-in-dropdown-by-clicking-picture/40263)

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**Author:** [@Jamil100](https://discourse.nodered.org/u/Jamil100)\
**Replies:** 0\
**Last updated:** [2 February 2021 20:54 UTC](https://discourse.nodered.org/t/how-to-select-item-in-dropdown-by-clicking-picture/40263 "2021-02-02T20:54:58Z")

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Hello everyone, I have created a template that when you press an item in the dropdown list, it makes the word "Machine" be bold. Something like this below. But I would also like to have the feature that when I press the…

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## [Function of http in](https://discourse.nodered.org/t/function-of-http-in/40289)

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**Author:** [@NURULSYIFA98](https://discourse.nodered.org/u/NURULSYIFA98)\
**Replies:** 1\
**Last updated:** [3 February 2021 08:06 UTC](https://discourse.nodered.org/t/function-of-http-in/40289 "2021-02-03T08:06:35Z")

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Hello guys, I want to ask something about HTTP in the node-red. It is I need to use any link or not? I am working for voice recognition translator. But, when I already input the speech in telegram it will give differen…

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## [Send HTML form action from Node Red](https://discourse.nodered.org/t/send-html-form-action-from-node-red/40267)

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**Author:** [@ChrisDeVilliers](https://discourse.nodered.org/u/ChrisDeVilliers)\
**Replies:** 2\
**Last updated:** [3 February 2021 04:12 UTC](https://discourse.nodered.org/t/send-html-form-action-from-node-red/40267 "2021-02-03T04:12:59Z")

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Good day everyone, I have a networked projector that I am trying to connect to my home automation (Dell 7609WU). It has a simple web interface that uses an HTML form post to turn on and off the projector. While inspect…

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## [Deploy button not working](https://discourse.nodered.org/t/deploy-button-not-working/2972)

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**Author:** [@aihysp](https://discourse.nodered.org/u/aihysp)\
**Replies:** 38\
**Last updated:** [15 February 2019 15:29 UTC](https://discourse.nodered.org/t/deploy-button-not-working/2972 "2019-02-15T15:29:27Z")

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i have tried it all deleting all the subflows , all the config flows and all the flows and left with nothing still cannot deploy and yes i have seen this! https://groups.google.com/forum/#!topic/node-red/-PYF08I\_nRQ p…

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## [Websocket server (WSS) node connection keeps dropping](https://discourse.nodered.org/t/websocket-server-wss-node-connection-keeps-dropping/40276)

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**Author:** [@relic](https://discourse.nodered.org/u/relic)\
**Replies:** 1\
**Last updated:** [3 February 2021 01:46 UTC](https://discourse.nodered.org/t/websocket-server-wss-node-connection-keeps-dropping/40276 "2021-02-03T01:46:31Z")

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Hello, I've been given a specific task at my job where I have to check different pieces of information of a list of items. Currently, I can connect to the WSS of where I work and I'm able to check about 300 items at a …

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## [Node-Red won't run](https://discourse.nodered.org/t/node-red-wont-run/40031)

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**Author:** [@prf](https://discourse.nodered.org/u/prf)\
**Replies:** 19\
**Last updated:** [3 February 2021 00:50 UTC](https://discourse.nodered.org/t/node-red-wont-run/40031 "2021-02-03T00:50:17Z")

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I've got myself into a bit of a bind. Node-Red won't start and instead displays a repeating error message: \[error\] \[ui\_guage: a long number\] TypeError: Cannot read property. I assume that this is caused by a fault in t…

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## [Implicit list of users in adminAuth](https://discourse.nodered.org/t/implicit-list-of-users-in-adminauth/9813)

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**Author:** [@stgv](https://discourse.nodered.org/u/stgv)\
**Replies:** 15\
**Last updated:** [3 February 2021 00:29 UTC](https://discourse.nodered.org/t/implicit-list-of-users-in-adminauth/9813 "2021-02-03T00:29:51Z")

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I'm looking into securing my company's Node-RED setup to only allow access to users in a specific GitLab group. I found a passport strategy for gitlab-oauth, which should work well enough with the strategy-type adminAuth …

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## [Telegram output with bold text and table](https://discourse.nodered.org/t/telegram-output-with-bold-text-and-table/40215)

<div class="topic-metadata">

**Author:** [@vikozo](https://discourse.nodered.org/u/vikozo)\
**Replies:** 8\
**Last updated:** [2 February 2021 22:25 UTC](https://discourse.nodered.org/t/telegram-output-with-bold-text-and-table/40215 "2021-02-02T22:25:58Z")

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Hello i found out to send telegram text in Bold you have to put them between asterix bold if i do this in my node i got a syntax error, why? it is also possible to add some url and a table? \[{"id":"31e1314d.271b4e","…

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## [How can i stop and then restart the Node-Red application with runtime API?](https://discourse.nodered.org/t/how-can-i-stop-and-then-restart-the-node-red-application-with-runtime-api/40268)

<div class="topic-metadata">

**Author:** [@Norberg95](https://discourse.nodered.org/u/Norberg95)\
**Replies:** 0\
**Last updated:** [2 February 2021 21:44 UTC](https://discourse.nodered.org/t/how-can-i-stop-and-then-restart-the-node-red-application-with-runtime-api/40268 "2021-02-02T21:44:22Z")

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I would like to close every flow and then restart them from the runtime API. I am testing this code, but it crashes. RED.start(); setTimeout(() =\> { console.log('RED starting to stop'); RED.stop().then(() =\> …

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## [Learning UDP message](https://discourse.nodered.org/t/learning-udp-message/40055)

<div class="topic-metadata">

**Author:** [@rogier](https://discourse.nodered.org/u/rogier)\
**Replies:** 6\
**Last updated:** [2 February 2021 19:15 UTC](https://discourse.nodered.org/t/learning-udp-message/40055 "2021-02-02T19:15:12Z")

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Can anyone te me how this works / use it in Node Red in the 2 picture below you see a snap of wire shark. in picture 1 i ask (with company software) 010101 from a DDC device (red understripe). in picture 2 i ask (with…

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## [Websocket Timeout Issue/Phoscon](https://discourse.nodered.org/t/websocket-timeout-issue-phoscon/37942)

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**Author:** [@ScottJ2505](https://discourse.nodered.org/u/ScottJ2505)\
**Replies:** 2\
**Last updated:** [2 February 2021 18:32 UTC](https://discourse.nodered.org/t/websocket-timeout-issue-phoscon/37942 "2021-02-02T18:32:26Z")

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Hello, I am using a Raspberry Pi 3 with Node Red/DeCONZ/Phoscon Apps to monitor and control home automation devices wirelessly using the Zigbee network and ConBee II. Every so often on the Node Red console I see the fol…

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## [UI Builder - Client Identification (HTTPHEADERS)](https://discourse.nodered.org/t/ui-builder-client-identification-httpheaders/40184)

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**Author:** [@cbel](https://discourse.nodered.org/u/cbel)\
**Replies:** 3\
**Last updated:** [2 February 2021 18:17 UTC](https://discourse.nodered.org/t/ui-builder-client-identification-httpheaders/40184 "2021-02-02T18:17:43Z")

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I've been using UI-Builder to create an interface that allow users to enter data which is sent be to another backend server using MQTT. Everything is properly working, but I am facing an issue which I can't seem to resol…

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## [NFC-Data from iPhone to Node-red](https://discourse.nodered.org/t/nfc-data-from-iphone-to-node-red/40178)

<div class="topic-metadata">

**Author:** [@Eberhard](https://discourse.nodered.org/u/Eberhard)\
**Replies:** 5\
**Last updated:** [2 February 2021 18:11 UTC](https://discourse.nodered.org/t/nfc-data-from-iphone-to-node-red/40178 "2021-02-02T18:11:52Z")

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I want to transfer a data-set, read from a NFC-tag with an iPhone X, into node-red. Is there a way to transfer? If 'yes' which way?

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## [AWS Kinesis Video Stream](https://discourse.nodered.org/t/aws-kinesis-video-stream/40244)

<div class="topic-metadata">

**Author:** [@mandeepahuja](https://discourse.nodered.org/u/mandeepahuja)\
**Replies:** 1\
**Last updated:** [2 February 2021 17:08 UTC](https://discourse.nodered.org/t/aws-kinesis-video-stream/40244 "2021-02-02T17:08:28Z")

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Hello Team... I am hoping someone has already done this and can give me a head start Has anyone used the AWS Kinesis Video Stream through Node-Red. I see in the aws package Kinesis is available An example flow using…

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