# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=129

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

**Page:** 130

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## [Write data into modbus server](https://discourse.nodered.org/t/write-data-into-modbus-server/85809)

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**Author:** [@PRABHAKAR82](https://discourse.nodered.org/u/PRABHAKAR82)\
**Replies:** 6\
**Last updated:** [23 February 2024 13:12 UTC](https://discourse.nodered.org/t/write-data-into-modbus-server/85809 "2024-02-23T13:12:45Z")

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\[ { "id": "d957bb780997c872", "type": "modbus-write", "z": "7568dacddffb4c49", "name": "", "showStatusActivities": false, "showErrors": false, "showWarnings": t…

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## [Node-red-contrib-usbcamera not working](https://discourse.nodered.org/t/node-red-contrib-usbcamera-not-working/85789)

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**Author:** [@perigalacticon](https://discourse.nodered.org/u/perigalacticon)\
**Replies:** 2\
**Last updated:** [23 February 2024 11:58 UTC](https://discourse.nodered.org/t/node-red-contrib-usbcamera-not-working/85789 "2024-02-23T11:58:18Z")

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When I use this node "node-red-contrib-usbcamera" it generates a path output to /home/perigalacticon/Pictures/image01.jpg but the photo is not there. How do I make this work?

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## [Camerapi-takephoto node replacement for bullseye](https://discourse.nodered.org/t/camerapi-takephoto-node-replacement-for-bullseye/85788)

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**Author:** [@perigalacticon](https://discourse.nodered.org/u/perigalacticon)\
**Replies:** 1\
**Last updated:** [23 February 2024 11:54 UTC](https://discourse.nodered.org/t/camerapi-takephoto-node-replacement-for-bullseye/85788 "2024-02-23T11:54:44Z")

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I tried to use the camerapi-takephoto node and it doesn't work on RPi with Bullseye OS because it needs picamera2 library. Is there another node available for taking photos with the RPi camera?

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## [Communicate over modbus with Hörmann garage door](https://discourse.nodered.org/t/communicate-over-modbus-with-hormann-garage-door/85565)

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**Author:** [@RobinR1](https://discourse.nodered.org/u/RobinR1)\
**Replies:** 9\
**Last updated:** [23 February 2024 10:11 UTC](https://discourse.nodered.org/t/communicate-over-modbus-with-hormann-garage-door/85565 "2024-02-23T10:11:41Z")

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I trying to make my UniPi Patron unit running Node-RED to communicate with a Hörmann SupraMatic 4 motor for controlling my garage door and querying it's current state. There are projects like GitHub - Gifford47/HCPBridg…

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## [Modbus write a FC 5 value other than True or False i.e. 0x5500](https://discourse.nodered.org/t/modbus-write-a-fc-5-value-other-than-true-or-false-i-e-0x5500/85784)

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**Author:** [@chrisdbrown3839](https://discourse.nodered.org/u/chrisdbrown3839)\
**Replies:** 7\
**Last updated:** [23 February 2024 07:03 UTC](https://discourse.nodered.org/t/modbus-write-a-fc-5-value-other-than-true-or-false-i-e-0x5500/85784 "2024-02-23T07:03:05Z")

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Hi - On the Waveshare POE ethernet 8 channel relay you have the ability to toggle the state of a relay by sending 0x5500 using an FC5 message. I known this is a coil not a register but quoting the manual wiki here Wavesh…

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## [Use Node-RED to talk CANbus?](https://discourse.nodered.org/t/use-node-red-to-talk-canbus/85768)

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**Author:** [@rthorntn](https://discourse.nodered.org/u/rthorntn)\
**Replies:** 5\
**Last updated:** [23 February 2024 06:34 UTC](https://discourse.nodered.org/t/use-node-red-to-talk-canbus/85768 "2024-02-23T06:34:08Z")

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Hi, I use Node-RED for my solar PV system. Please help, I need to spoof my inverter (GoodWe SBP G2) with compatible battery communication. Without a compatible CANbus battery it only charges at half rate. I have all …

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## [Connect to a PULSAR broker instead of MQTT](https://discourse.nodered.org/t/connect-to-a-pulsar-broker-instead-of-mqtt/85444)

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**Author:** [@alexblav](https://discourse.nodered.org/u/alexblav)\
**Replies:** 6\
**Last updated:** [23 February 2024 06:20 UTC](https://discourse.nodered.org/t/connect-to-a-pulsar-broker-instead-of-mqtt/85444 "2024-02-23T06:20:16Z")

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Hello, I'm new to this forum. I manipulate a little Node-red for my home automation. For my TUYA components, I will need to connect to a PULSAR broker instead of MQTT. I've seen MQTT nodes but not Pulsar. Does anyone …

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## [How to use enents: state node to display temperature changes](https://discourse.nodered.org/t/how-to-use-enents-state-node-to-display-temperature-changes/85713)

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**Author:** [@EcarDK](https://discourse.nodered.org/u/EcarDK)\
**Replies:** 1\
**Last updated:** [23 February 2024 00:06 UTC](https://discourse.nodered.org/t/how-to-use-enents-state-node-to-display-temperature-changes/85713 "2024-02-23T00:06:53Z")

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Hallo All How do I use "enents: state" node to display temperature changes or cloud coverage. I ude weather forecast data.attributes.temperature and data.attributes.cloud\_coverage. It work fine when I use "inject" no…

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## [How use only http://hostname/ instead of http://hostname:1880/ui](https://discourse.nodered.org/t/how-use-only-http-hostname-instead-of-http-hostname-1880-ui/85615)

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**Author:** [@JorgeTorres01](https://discourse.nodered.org/u/JorgeTorres01)\
**Replies:** 3\
**Last updated:** [22 February 2024 23:59 UTC](https://discourse.nodered.org/t/how-use-only-http-hostname-instead-of-http-hostname-1880-ui/85615 "2024-02-22T23:59:16Z")

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Hello, I'm trying to use only http://hostname/ instade of http://hostname:1880/ui I instaled the nginx and configured the file node-red with : sudo nano /etc/nginx/sites-available/node-red with the following code …

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## [Victron - checking mqtt connection fails to Cerbo?](https://discourse.nodered.org/t/victron-checking-mqtt-connection-fails-to-cerbo/85711)

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**Author:** [@4711Austria](https://discourse.nodered.org/u/4711Austria)\
**Replies:** 11\
**Last updated:** [22 February 2024 20:44 UTC](https://discourse.nodered.org/t/victron-checking-mqtt-connection-fails-to-cerbo/85711 "2024-02-22T20:44:24Z")

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Hi, this will be only for Victron users I think. Checking to ioBroker works fine, checking to Cerbo not? hmmm... all the same, both Broker, just different IP's \[{"id":"570d4cc3075a1235","type":"function","z":"eb…

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## [Writing array of arrays data to Influx](https://discourse.nodered.org/t/writing-array-of-arrays-data-to-influx/85756)

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**Author:** [@NewHopeFarm](https://discourse.nodered.org/u/NewHopeFarm)\
**Replies:** 5\
**Last updated:** [22 February 2024 20:42 UTC](https://discourse.nodered.org/t/writing-array-of-arrays-data-to-influx/85756 "2024-02-22T20:42:23Z")

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I'm a bit of a novice but have made progress on my Node-Red skills but I have one last hurdle I can't quite figure out. I have an IOT node that takes temperature readings every X amount of time, stores it and then after…

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## [Data Fetch / Persistency](https://discourse.nodered.org/t/data-fetch-persistency/85548)

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**Author:** [@xcamuzx](https://discourse.nodered.org/u/xcamuzx)\
**Replies:** 11\
**Last updated:** [22 February 2024 17:29 UTC](https://discourse.nodered.org/t/data-fetch-persistency/85548 "2024-02-22T17:29:32Z")

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Hi, Im using Node-red in a limited enviroment as im running it in a 4G router, where i cant install all the pallettes as i wish. I figured out a way to still get some basic ones that where provided by the router brand. …

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## [Is anyone else seeing these errors in the Editor (in dev tools console)?](https://discourse.nodered.org/t/is-anyone-else-seeing-these-errors-in-the-editor-in-dev-tools-console/85778)

<div class="topic-metadata">

**Author:** [@TotallyInformation](https://discourse.nodered.org/u/TotallyInformation)\
**Replies:** 5\
**Last updated:** [22 February 2024 17:13 UTC](https://discourse.nodered.org/t/is-anyone-else-seeing-these-errors-in-the-editor-in-dev-tools-console/85778 "2024-02-22T17:13:51Z")

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I am getting them when closing any node config panel. Trying to work out if it is something I've done as I'm only seeing it on my Windows dev instance. Running Node-RED v3.1.5 in Edge browser.

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## [Extract data from payload (sonoff ihost)](https://discourse.nodered.org/t/extract-data-from-payload-sonoff-ihost/85746)

<div class="topic-metadata">

**Author:** [@joris05](https://discourse.nodered.org/u/joris05)\
**Replies:** 3\
**Last updated:** [22 February 2024 16:56 UTC](https://discourse.nodered.org/t/extract-data-from-payload-sonoff-ihost/85746 "2024-02-22T16:56:01Z")

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Hello, I am using node red on a Sonoff ihost box and I want to isolate the temperature and humidity value from a payload. I'm trying to use the "change" node to extract an object but I have the impression that my payloas…

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## [Node-red-node-ui-table redraw table with scrollbar](https://discourse.nodered.org/t/node-red-node-ui-table-redraw-table-with-scrollbar/84894)

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**Author:** [@jbudd](https://discourse.nodered.org/u/jbudd)\
**Replies:** 8\
**Last updated:** [22 February 2024 12:05 UTC](https://discourse.nodered.org/t/node-red-node-ui-table-redraw-table-with-scrollbar/84894 "2024-02-22T12:05:27Z")

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I have a dashboard table with sufficient rows to need a vertical scrollbar. The table is automatically refreshed to display the latest data and the scrollbar returns to the top every time. Is there any way to refresh b…

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## [Can not install modules in Node-Red Addon ETIMEDOUT](https://discourse.nodered.org/t/can-not-install-modules-in-node-red-addon-etimedout/85759)

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**Author:** [@Sonix1311](https://discourse.nodered.org/u/Sonix1311)\
**Replies:** 2\
**Last updated:** [22 February 2024 11:52 UTC](https://discourse.nodered.org/t/can-not-install-modules-in-node-red-addon-etimedout/85759 "2024-02-22T11:52:11Z")

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Hello, I m new at the forum and after some research I was not able to solve my problem in HAOS and Node Red Addon. My hardware is a Asus N100 board with 16 GB RAM and several SSDs. There is TrueNAS Scale installed and H…

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## [Node-red-contrib-mssql-plus 0.12.2 EREQUEST/Invalid string error](https://discourse.nodered.org/t/node-red-contrib-mssql-plus-0-12-2-erequest-invalid-string-error/85761)

<div class="topic-metadata">

**Author:** [@berzezo](https://discourse.nodered.org/u/berzezo)\
**Replies:** 2\
**Last updated:** [22 February 2024 10:41 UTC](https://discourse.nodered.org/t/node-red-contrib-mssql-plus-0-12-2-erequest-invalid-string-error/85761 "2024-02-22T10:41:47Z")

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Hello, Can anybody help me about debugging the following error. I tried with different data types, but I couldn't find out where the problem is after many hours. This was a working solution until I updated the mssql-p…

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## [Strange behaviour Csv node](https://discourse.nodered.org/t/strange-behaviour-csv-node/85747)

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**Author:** [@edje11](https://discourse.nodered.org/u/edje11)\
**Replies:** 5\
**Last updated:** [21 February 2024 23:36 UTC](https://discourse.nodered.org/t/strange-behaviour-csv-node/85747 "2024-02-21T23:36:56Z")

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I have a strange issue with the core Csv node. When the check is set for Include empty strings there are always 2 message's per csv row. The first message only contains the first column name with no value. If you disa…

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## [Cip-ethernet PLC allenbradley to InfluxDB](https://discourse.nodered.org/t/cip-ethernet-plc-allenbradley-to-influxdb/85729)

<div class="topic-metadata">

**Author:** [@Andreassebayang](https://discourse.nodered.org/u/Andreassebayang)\
**Replies:** 3\
**Last updated:** [22 February 2024 02:08 UTC](https://discourse.nodered.org/t/cip-ethernet-plc-allenbradley-to-influxdb/85729 "2024-02-22T02:08:51Z")

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Hello everyone, I'm a student working on my final project, can anyone help me describe the nodes in node-red for data retrieval from an allen bradley PLC with an ethernet chip and input the data to InfluxDB. Thank you. …

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## [Dockerized MySQL](https://discourse.nodered.org/t/dockerized-mysql/85465)

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**Author:** [@humphrysr](https://discourse.nodered.org/u/humphrysr)\
**Replies:** 9\
**Last updated:** [21 February 2024 23:48 UTC](https://discourse.nodered.org/t/dockerized-mysql/85465 "2024-02-21T23:48:35Z")

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Although I can connect to the dockerized Mysql instance using a client, I can not get my local instance of node-red to connect ,using the mysql node. Suggestions?

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## [Delete , edite , send row of table](https://discourse.nodered.org/t/delete-edite-send-row-of-table/85612)

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**Author:** [@sahar](https://discourse.nodered.org/u/sahar)\
**Replies:** 1\
**Last updated:** [21 February 2024 16:34 UTC](https://discourse.nodered.org/t/delete-edite-send-row-of-table/85612 "2024-02-21T16:34:51Z")

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hi . i have a project which select some data's from nodes , and show them in table at dashboard, now I want add select bar to each row at table to delete or edit or send it to DB, how i can do them ? \[ { "…

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## [Cron plus dynamic schedule on dashboard 2](https://discourse.nodered.org/t/cron-plus-dynamic-schedule-on-dashboard-2/85736)

<div class="topic-metadata">

**Author:** [@gerry](https://discourse.nodered.org/u/gerry)\
**Replies:** 4\
**Last updated:** [21 February 2024 16:25 UTC](https://discourse.nodered.org/t/cron-plus-dynamic-schedule-on-dashboard-2/85736 "2024-02-21T16:25:47Z")

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Probably not specific to dashboard 2 but that's what I'm using so I threw that in. I have looked at all the examples imported and they work fine. I use what I think are the same settings in a function node and it doesn't…

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## [Is it safe to clear npm cache](https://discourse.nodered.org/t/is-it-safe-to-clear-npm-cache/85726)

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**Author:** [@questuk](https://discourse.nodered.org/u/questuk)\
**Replies:** 5\
**Last updated:** [21 February 2024 15:45 UTC](https://discourse.nodered.org/t/is-it-safe-to-clear-npm-cache/85726 "2024-02-21T15:45:49Z")

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Hi I have 53mb of cacache, is it safe in Node-RED to remove these and what command to use, I am using Linux. Thanks

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## [Start node-red failed](https://discourse.nodered.org/t/start-node-red-failed/85725)

<div class="topic-metadata">

**Author:** [@tomas.garcia](https://discourse.nodered.org/u/tomas.garcia)\
**Replies:** 4\
**Last updated:** [21 February 2024 13:49 UTC](https://discourse.nodered.org/t/start-node-red-failed/85725 "2024-02-21T13:49:08Z")

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When I start node-red, it gives me the following error. What could be the reason? Thank you \`Publisher: Inside error function, msg: Error: Connection refused: Bad username or password\` at MqttClient.\_handleConnack …

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## [Can't install node-red-node-sqlite from palette](https://discourse.nodered.org/t/cant-install-node-red-node-sqlite-from-palette/85721)

<div class="topic-metadata">

**Author:** [@baboski](https://discourse.nodered.org/u/baboski)\
**Replies:** 4\
**Last updated:** [21 February 2024 10:19 UTC](https://discourse.nodered.org/t/cant-install-node-red-node-sqlite-from-palette/85721 "2024-02-21T10:19:27Z")

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Hello, as i wrote in the title i can't install this node from manage palette, i'm getting this error and i don't know how to solve it, thanks you: ----------------------------------------------------------- 2024-02-21T0…

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## [Help: I want to configure Node-RED for monitoring with Prometheus and Node Exporter | Docker](https://discourse.nodered.org/t/help-i-want-to-configure-node-red-for-monitoring-with-prometheus-and-node-exporter-docker/85558)

<div class="topic-metadata">

**Author:** [@for\_iot](https://discourse.nodered.org/u/for_iot)\
**Replies:** 2\
**Last updated:** [21 February 2024 08:44 UTC](https://discourse.nodered.org/t/help-i-want-to-configure-node-red-for-monitoring-with-prometheus-and-node-exporter-docker/85558 "2024-02-21T08:44:46Z")

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Please help: I want to configure Node-RED for monitoring with Prometheus and Node Exporter The goal is to monitor Node-RED server and Prometheus server and follow if they work correctly, and visual there metrics in Gar…

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## [Modbus server not running on linux](https://discourse.nodered.org/t/modbus-server-not-running-on-linux/85695)

<div class="topic-metadata">

**Author:** [@PRABHAKAR82](https://discourse.nodered.org/u/PRABHAKAR82)\
**Replies:** 6\
**Last updated:** [21 February 2024 04:45 UTC](https://discourse.nodered.org/t/modbus-server-not-running-on-linux/85695 "2024-02-21T04:45:27Z")

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I configure Modbus server, but this error is coming "Error: listen EACCES: permission denied 192.168.0.114:502". node-red is running on Linux ubuntu(Orange pi-pc).

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## [Some suggestions for Node-RED（input and output UI)](https://discourse.nodered.org/t/some-suggestions-for-node-red-input-and-output-ui/85718)

<div class="topic-metadata">

**Author:** [@sangluocun](https://discourse.nodered.org/u/sangluocun)\
**Replies:** 0\
**Last updated:** [21 February 2024 03:58 UTC](https://discourse.nodered.org/t/some-suggestions-for-node-red-input-and-output-ui/85718 "2024-02-21T03:58:02Z")

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I'm a software engineer who has been exploring the use of open source software in industrial applications. Recently I've been trying out n8n and wondering if some of the good parts(UEX) could be refer into Node-RED. For…

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## [Motion activated floodlight](https://discourse.nodered.org/t/motion-activated-floodlight/85714)

<div class="topic-metadata">

**Author:** [@LIT-1](https://discourse.nodered.org/u/LIT-1)\
**Replies:** 3\
**Last updated:** [21 February 2024 00:58 UTC](https://discourse.nodered.org/t/motion-activated-floodlight/85714 "2024-02-21T00:58:43Z")

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Hi, I have a setup with 3 Ubiquiti Cameras integrated into Home Assistant using the integration and a Shelly that turns on a floodlight then waits 30 seconds and turns it off the Shelly which turns off the floodlight. H…

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## [Hasp\["1"\].page\[0\].tab\[0\].btn\[0\].value\_str - too complex or run of the mill?](https://discourse.nodered.org/t/hasp-1-page-0-tab-0-btn-0-value-str-too-complex-or-run-of-the-mill/85091)

<div class="topic-metadata">

**Author:** [@Sean-McG](https://discourse.nodered.org/u/Sean-McG)\
**Replies:** 15\
**Last updated:** [20 February 2024 18:37 UTC](https://discourse.nodered.org/t/hasp-1-page-0-tab-0-btn-0-value-str-too-complex-or-run-of-the-mill/85091 "2024-02-20T18:37:25Z")

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In my quest to create an "easy" :stuck\_out\_tongue\_winking\_eye: way to configure the page layouts for openHasp, I thought using a function node would be a good idea, as it takes advantage of the Monaco syntax checking. C…

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