# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=136

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

**Page:** 137

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## [Retrieving a single Bacnet "Present Value" only](https://discourse.nodered.org/t/retrieving-a-single-bacnet-present-value-only/85045)

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**Author:** [@Berx](https://discourse.nodered.org/u/Berx)\
**Replies:** 4\
**Last updated:** [31 January 2024 18:15 UTC](https://discourse.nodered.org/t/retrieving-a-single-bacnet-present-value-only/85045 "2024-01-31T18:15:56Z")

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Hi, I have a connection to a BACnet device and by using a BACnet Read-Node, I get a very lengthy reply. However, I only need the value (in my case a room temperature). How do I extract only the required value fo…

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## [Need help by function for tracking msg.payload](https://discourse.nodered.org/t/need-help-by-function-for-tracking-msg-payload/85053)

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**Author:** [@tech152](https://discourse.nodered.org/u/tech152)\
**Replies:** 2\
**Last updated:** [31 January 2024 16:10 UTC](https://discourse.nodered.org/t/need-help-by-function-for-tracking-msg-payload/85053 "2024-01-31T16:10:15Z")

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Hi, i need a function with 2 out´s, which track my msg.payload. If msg.payload input less than -1000 send on first out "1" and on second output the input msg.payload value After this, if the value greater than +1000, …

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## [Looking for a node with a button like the inject and debug nodes](https://discourse.nodered.org/t/looking-for-a-node-with-a-button-like-the-inject-and-debug-nodes/84986)

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**Author:** [@stevegroom](https://discourse.nodered.org/u/stevegroom)\
**Replies:** 11\
**Last updated:** [31 January 2024 14:20 UTC](https://discourse.nodered.org/t/looking-for-a-node-with-a-button-like-the-inject-and-debug-nodes/84986 "2024-01-31T14:20:18Z")

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Hello, I'm trying to develop and debug a complex flow and am looking for a simple way to enable or disable parts of the flow (without the disable/deploy actions). I like the UI of the Inject and Debug nodes, and want s…

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## [Behaviour of switch node not as expected (help needed)](https://discourse.nodered.org/t/behaviour-of-switch-node-not-as-expected-help-needed/85078)

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**Author:** [@fnx2k](https://discourse.nodered.org/u/fnx2k)\
**Replies:** 1\
**Last updated:** [31 January 2024 14:03 UTC](https://discourse.nodered.org/t/behaviour-of-switch-node-not-as-expected-help-needed/85078 "2024-01-31T14:03:20Z")

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Hello, I need some help to understand how to handle the switch node/and or the syntax of the msg. My aim is to compare Ta a temperature read from a sensor to a target temperature (Tconsigne). Tconsigne is set via a fl…

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## [Nodered crashing](https://discourse.nodered.org/t/nodered-crashing/85076)

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**Author:** [@Jen](https://discourse.nodered.org/u/Jen)\
**Replies:** 2\
**Last updated:** [31 January 2024 13:55 UTC](https://discourse.nodered.org/t/nodered-crashing/85076 "2024-01-31T13:55:41Z")

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hello! I have a flow that has been working every day for a year. works for 2 hours a day with receiving and sending data every 3 minutes. about six months ago, it was handling 6000 shipments in 3 minutes, then it start…

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## [Why is the flows.nodered.org hyperlink only visible on non installed nodes in the palette list?](https://discourse.nodered.org/t/why-is-the-flows-nodered-org-hyperlink-only-visible-on-non-installed-nodes-in-the-palette-list/85067)

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**Author:** [@vindolin](https://discourse.nodered.org/u/vindolin)\
**Replies:** 1\
**Last updated:** [31 January 2024 11:43 UTC](https://discourse.nodered.org/t/why-is-the-flows-nodered-org-hyperlink-only-visible-on-non-installed-nodes-in-the-palette-list/85067 "2024-01-31T11:43:16Z")

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I often have to google for the node name of already installed nodes to find the repository/documentation of that node. E.g. when a node has a new version and I want to see what was changed.

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## [Websocket with Node-RED and reverse proxy](https://discourse.nodered.org/t/websocket-with-node-red-and-reverse-proxy/85062)

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**Author:** [@dcaccount](https://discourse.nodered.org/u/dcaccount)\
**Replies:** 1\
**Last updated:** [31 January 2024 11:17 UTC](https://discourse.nodered.org/t/websocket-with-node-red-and-reverse-proxy/85062 "2024-01-31T11:17:24Z")

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Hello, following the indication that I got in this great forum, I installed in my Raspberry a reverse proxy, NGINX Proxy Manager to act as a SSL termination. In NGINX Proxy Manager I have created a new proxy host and t…

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## [Android - termux - Playstore no longer a recommended install source](https://discourse.nodered.org/t/android-termux-playstore-no-longer-a-recommended-install-source/85034)

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**Author:** [@btsimonh](https://discourse.nodered.org/u/btsimonh)\
**Replies:** 8\
**Last updated:** [31 January 2024 10:05 UTC](https://discourse.nodered.org/t/android-termux-playstore-no-longer-a-recommended-install-source/85034 "2024-01-31T10:05:05Z")

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Just a note that the Android documentation should probably be changed to recommend F-Droid install of termux only. I just installed from the play store, and got it working with a little jiggery-pokery, but as per here: …

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## [Going in circles with error message](https://discourse.nodered.org/t/going-in-circles-with-error-message/85060)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 8\
**Last updated:** [31 January 2024 09:28 UTC](https://discourse.nodered.org/t/going-in-circles-with-error-message/85060 "2024-01-31T09:28:07Z")

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Today's dumb question: This code: \[{"id":"267a24d08e923993","type":"inject","z":"0918ee609bf69fc7","name":"","props":\[{"p":"payload"},{"p":"topic","vt":"str"}\],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"top…

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## [Calculate MODULO?](https://discourse.nodered.org/t/calculate-modulo/85052)

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**Author:** [@ArmarellaDaisy](https://discourse.nodered.org/u/ArmarellaDaisy)\
**Replies:** 8\
**Last updated:** [31 January 2024 09:21 UTC](https://discourse.nodered.org/t/calculate-modulo/85052 "2024-01-31T09:21:58Z")

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Hi Guys, I want to calculate a value in steps of 5. 17 -\> 20 12 -\> 15 24.5 -\> 25 is this somehow possible using Modulo ? lG Daisy

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## [Bad data inject updating chart](https://discourse.nodered.org/t/bad-data-inject-updating-chart/85031)

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**Author:** [@jclucivero](https://discourse.nodered.org/u/jclucivero)\
**Replies:** 10\
**Last updated:** [30 January 2024 19:51 UTC](https://discourse.nodered.org/t/bad-data-inject-updating-chart/85031 "2024-01-30T19:51:52Z")

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I am new to this soI apologize in advance. I have created a dashboard with 3 sensors from a pico to dashboard on a pi. I setup 3 Gauges that correctly display the data every 1 minute. I tried to add 3 charts for historic…

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## [Issue in using node after creating custom node](https://discourse.nodered.org/t/issue-in-using-node-after-creating-custom-node/83666)

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**Author:** [@hammad](https://discourse.nodered.org/u/hammad)\
**Replies:** 12\
**Last updated:** [30 January 2024 15:05 UTC](https://discourse.nodered.org/t/issue-in-using-node-after-creating-custom-node/83666 "2024-01-30T15:05:12Z")

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I am kind of new to node and didn't know much about that. I am creating custom nodes to run over the IP security camera which will interact with the camera and extract data by using camera's internal protocols. I am able…

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## [Tabulator table needs several time the input to display properly](https://discourse.nodered.org/t/tabulator-table-needs-several-time-the-input-to-display-properly/85047)

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**Author:** [@JeromeVISUALS](https://discourse.nodered.org/u/JeromeVISUALS)\
**Replies:** 0\
**Last updated:** [30 January 2024 14:31 UTC](https://discourse.nodered.org/t/tabulator-table-needs-several-time-the-input-to-display-properly/85047 "2024-01-30T14:31:15Z")

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Hi, I use quite often Tabulator 5.5 using template nodes, usually it works quite good. I know have the problem with a new table, which needs the input datas to be sent two times to get the table displayed properly . Wh…

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## [Disable/Enable flow Tab via Admin API](https://discourse.nodered.org/t/disable-enable-flow-tab-via-admin-api/84527)

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**Author:** [@Henjoe](https://discourse.nodered.org/u/Henjoe)\
**Replies:** 3\
**Last updated:** [30 January 2024 10:36 UTC](https://discourse.nodered.org/t/disable-enable-flow-tab-via-admin-api/84527 "2024-01-30T10:36:46Z")

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Hi nodered Experts, Just wanna know if someone here already tried to enable/disable a whole flow tab using the Admin API? I can actually disable / enable it however there is a strange things happen, If I disable the f…

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## [Link call flow embed another link call](https://discourse.nodered.org/t/link-call-flow-embed-another-link-call/85017)

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**Author:** [@JeromeVISUALS](https://discourse.nodered.org/u/JeromeVISUALS)\
**Replies:** 4\
**Last updated:** [30 January 2024 05:13 UTC](https://discourse.nodered.org/t/link-call-flow-embed-another-link-call/85017 "2024-01-30T05:13:50Z")

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Hi there, I wonder if it's possible to have a flow used with link call node, which would also make use of a link call, like in this example : If I remember correctly, link call feature makes use of a msg.\_linkSource…

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## [Opacity rectangle Svg node](https://discourse.nodered.org/t/opacity-rectangle-svg-node/85021)

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**Author:** [@edje11](https://discourse.nodered.org/u/edje11)\
**Replies:** 4\
**Last updated:** [29 January 2024 23:18 UTC](https://discourse.nodered.org/t/opacity-rectangle-svg-node/85021 "2024-01-29T23:18:54Z")

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I'm trying to change the transparacy of an Svg rectangle element in the svg node from Bart, but can't get it working. Tried almost every combination fill-opacity with underscore or with dash, the attribute value as stri…

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## [Use variable for inject time](https://discourse.nodered.org/t/use-variable-for-inject-time/5736)

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**Author:** [@christianwaite](https://discourse.nodered.org/u/christianwaite)\
**Replies:** 5\
**Last updated:** [29 January 2024 12:03 UTC](https://discourse.nodered.org/t/use-variable-for-inject-time/5736 "2024-01-29T12:03:19Z")

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Hey all, I want to make an alarm clock and need to trigger it at a certain time, but set that time in Home-Assistant. So using the inject node, how can I dynamically set the time with a variable etc.

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## [UDP out node set msg.localport](https://discourse.nodered.org/t/udp-out-node-set-msg-localport/85009)

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**Author:** [@morgangdfp](https://discourse.nodered.org/u/morgangdfp)\
**Replies:** 2\
**Last updated:** [29 January 2024 08:01 UTC](https://discourse.nodered.org/t/udp-out-node-set-msg-localport/85009 "2024-01-29T08:01:04Z")

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I am running node red on an ubuntu server and I have configured one of the network adapters to have several IP addresses, like this: network: ethernets: enp0s3: dhcp4: true enp0s8: dhcp4: no …

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## [Local control of home devices - Wiz](https://discourse.nodered.org/t/local-control-of-home-devices-wiz/83009)

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**Author:** [@cymplecy](https://discourse.nodered.org/u/cymplecy)\
**Replies:** 33\
**Last updated:** [29 January 2024 01:19 UTC](https://discourse.nodered.org/t/local-control-of-home-devices-wiz/83009 "2024-01-29T01:19:46Z")

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Following someone's hint on Mastodon that Wiz devices could be controlled locally, I bought a Wiz GU10 to test out I set up it using their app (usual thing that all smart devices have) couldn't see anything about local …

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## [Home Assistant & Victron](https://discourse.nodered.org/t/home-assistant-victron/84997)

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**Author:** [@Dacron](https://discourse.nodered.org/u/Dacron)\
**Replies:** 5\
**Last updated:** [28 January 2024 22:00 UTC](https://discourse.nodered.org/t/home-assistant-victron/84997 "2024-01-28T22:00:56Z")

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Hi I have Node Red on my Victron multi plus and integrated in Home Assistant both on the same network is it possible to access the Victron control nodes in the Home assistant instance to use Home Assistant devices in a V…

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## [Query from Influxdb](https://discourse.nodered.org/t/query-from-influxdb/84987)

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**Author:** [@Astroman](https://discourse.nodered.org/u/Astroman)\
**Replies:** 2\
**Last updated:** [28 January 2024 19:03 UTC](https://discourse.nodered.org/t/query-from-influxdb/84987 "2024-01-28T19:03:42Z")

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Hi friends. I need your supports. I'm trying to get data from Influx Cloud DB. Table influxdb: I use influxdb in node\[v2.0\] due to "influxdb cloud". Contain node like below. from(bucket: "NodeRed") |\> range(star…

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## [First 100 cells import a file](https://discourse.nodered.org/t/first-100-cells-import-a-file/84980)

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**Author:** [@madmax](https://discourse.nodered.org/u/madmax)\
**Replies:** 9\
**Last updated:** [28 January 2024 14:08 UTC](https://discourse.nodered.org/t/first-100-cells-import-a-file/84980 "2024-01-28T14:08:50Z")

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Hello! Is there a way to only add the first 100 cells when I import a file? I hope someone has a tip for me.

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## [Output only once when over threshold](https://discourse.nodered.org/t/output-only-once-when-over-threshold/84988)

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**Author:** [@cairon](https://discourse.nodered.org/u/cairon)\
**Replies:** 1\
**Last updated:** [28 January 2024 13:07 UTC](https://discourse.nodered.org/t/output-only-once-when-over-threshold/84988 "2024-01-28T13:07:37Z")

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Hi there, I have a I think simple question but I am not getting it. I want to build a ventilate alert, so I want that Node-Red send ONE (!) message if a value is over a given value. So "Send me a message if value A is…

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## [Can I return a real null value to a multi out function from an else if statement?](https://discourse.nodered.org/t/can-i-return-a-real-null-value-to-a-multi-out-function-from-an-else-if-statement/84852)

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**Author:** [@mikefila](https://discourse.nodered.org/u/mikefila)\
**Replies:** 37\
**Last updated:** [28 January 2024 11:25 UTC](https://discourse.nodered.org/t/can-i-return-a-real-null-value-to-a-multi-out-function-from-an-else-if-statement/84852 "2024-01-28T11:25:40Z")

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The way it is now, if it returns null, it will fire a null message. I'd like it to not fire at all. This works as is, problem was from bad formatting further up in my code. msg2 = null let msg2 = {}; if (phoneState ==…

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## [MQTT Dynamic broker - multiple brokers at the same time?](https://discourse.nodered.org/t/mqtt-dynamic-broker-multiple-brokers-at-the-same-time/84958)

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**Author:** [@bakman2](https://discourse.nodered.org/u/bakman2)\
**Replies:** 22\
**Last updated:** [28 January 2024 09:13 UTC](https://discourse.nodered.org/t/mqtt-dynamic-broker-multiple-brokers-at-the-same-time/84958 "2024-01-28T09:13:33Z")

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I want to connect to multiple brokers at the same time - can I use a single mqtt in+out node for this with dynamic subscriptions ? If yes, how do I publish to a specific broker without disconnecting from other brokers ? …

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## [Saving flows to server](https://discourse.nodered.org/t/saving-flows-to-server/84970)

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**Author:** [@AE8U](https://discourse.nodered.org/u/AE8U)\
**Replies:** 8\
**Last updated:** [27 January 2024 21:34 UTC](https://discourse.nodered.org/t/saving-flows-to-server/84970 "2024-01-27T21:34:45Z")

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Hello. I am running a Pi 4B as my Node-RED server. If i access it from a PC on the same local network and add new nodes and wires to an existing flow, should it save that information to the Pi, or must I export and im…

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## [Subflow setting details from env variables](https://discourse.nodered.org/t/subflow-setting-details-from-env-variables/84962)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 2\
**Last updated:** [27 January 2024 19:40 UTC](https://discourse.nodered.org/t/subflow-setting-details-from-env-variables/84962 "2024-01-27T19:40:12Z")

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Sorry folks, the hamster in on holidays upstairs. Here's what I have so far. Alas things evolved and it became more difficult. That worked ok and does work IF the device has only ONE output. I now have a device th…

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## [Possible to Configure Git Settings and Open Project Using CLI?](https://discourse.nodered.org/t/possible-to-configure-git-settings-and-open-project-using-cli/84691)

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**Author:** [@ChZeman](https://discourse.nodered.org/u/ChZeman)\
**Replies:** 3\
**Last updated:** [27 January 2024 16:16 UTC](https://discourse.nodered.org/t/possible-to-configure-git-settings-and-open-project-using-cli/84691 "2024-01-27T16:16:16Z")

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I'm deploying and configuring a fleet of Pis using Ansible and have everything working well to the point where I need to tell Node Red what my Git settings are and to open an existing project that has already been cloned…

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## [What is the "NodeRed" way to approach this? \[Argument Validation\]](https://discourse.nodered.org/t/what-is-the-nodered-way-to-approach-this-argument-validation/84845)

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**Author:** [@Hyperlooper](https://discourse.nodered.org/u/Hyperlooper)\
**Replies:** 7\
**Last updated:** [27 January 2024 14:18 UTC](https://discourse.nodered.org/t/what-is-the-nodered-way-to-approach-this-argument-validation/84845 "2024-01-27T14:18:05Z")

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I really love the low code environment that node-red provides, but I am struggling with one aspect when it comes to maintainability and avoiding bugs. In a more traditional coding environment, it's obvious when invoking …

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## [Secure WebSocket connection](https://discourse.nodered.org/t/secure-websocket-connection/84954)

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**Author:** [@dcaccount](https://discourse.nodered.org/u/dcaccount)\
**Replies:** 14\
**Last updated:** [27 January 2024 11:54 UTC](https://discourse.nodered.org/t/secure-websocket-connection/84954 "2024-01-27T11:54:14Z")

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Hello, I connect to my home website via https and the website is connected via ws to Node-RED. The problem is that the browser does not allow mixed (secure and insecure) connection. Question 1, is there a way to allow …

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