# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=90

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

**Page:** 91

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## [Email Nodes sending only to own domain, nothing outside](https://discourse.nodered.org/t/email-nodes-sending-only-to-own-domain-nothing-outside/90203)

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**Author:** [@Junior1544](https://discourse.nodered.org/u/Junior1544)\
**Replies:** 3\
**Last updated:** [17 August 2024 06:59 UTC](https://discourse.nodered.org/t/email-nodes-sending-only-to-own-domain-nothing-outside/90203 "2024-08-17T06:59:35Z")

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Aloha from Hawaii! I'm building an email trap that'll be part of a Video survailance system along with an alarm system. Basically, I will have a Raspberry Pi that will have the Relay output from the alarm so when the a…

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## [Let's discuss how we might use AI to detect people in stills, for low CPU users like me](https://discourse.nodered.org/t/lets-discuss-how-we-might-use-ai-to-detect-people-in-stills-for-low-cpu-users-like-me/90164)

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**Author:** [@no\_mpimpi](https://discourse.nodered.org/u/no_mpimpi)\
**Replies:** 21\
**Last updated:** [17 August 2024 03:40 UTC](https://discourse.nodered.org/t/lets-discuss-how-we-might-use-ai-to-detect-people-in-stills-for-low-cpu-users-like-me/90164 "2024-08-17T03:40:07Z")

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Greetings, I am trying to solve the problem of false motion alarms using Node-Red, and one of the ways I want to do that is with locally hosted AI. This is my use case. I live on a farm, and have experienced four burg…

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## [Convert string to number](https://discourse.nodered.org/t/convert-string-to-number/90213)

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**Author:** [@Sirhc](https://discourse.nodered.org/u/Sirhc)\
**Replies:** 5\
**Last updated:** [16 August 2024 13:10 UTC](https://discourse.nodered.org/t/convert-string-to-number/90213 "2024-08-16T13:10:41Z")

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Hello I have a payload which is a string that looks like this "{"id":100,"percent":22.5}". I need to get the 22.5 and convert it to a number, but not sure how to do this? The percent value can go from 0 to 100 (in this …

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## [Shelly plus uni gen2 device control from nodered](https://discourse.nodered.org/t/shelly-plus-uni-gen2-device-control-from-nodered/90214)

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**Author:** [@Sirhc](https://discourse.nodered.org/u/Sirhc)\
**Replies:** 1\
**Last updated:** [16 August 2024 11:30 UTC](https://discourse.nodered.org/t/shelly-plus-uni-gen2-device-control-from-nodered/90214 "2024-08-16T11:30:09Z")

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Hello I have a Shelly plus uni gen 2 device which accepts MQTT commands to switch the devices output relays. According to the API, the MQTT commands are as follows: API Documentation: Switch | Shelly Technical Docu…

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## [Frequent Editor Disconnects with Multi-Instance?](https://discourse.nodered.org/t/frequent-editor-disconnects-with-multi-instance/90205)

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**Author:** [@lorccan](https://discourse.nodered.org/u/lorccan)\
**Replies:** 3\
**Last updated:** [16 August 2024 08:42 UTC](https://discourse.nodered.org/t/frequent-editor-disconnects-with-multi-instance/90205 "2024-08-16T08:42:22Z")

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I am running 2 instances of Node-RED (different paths different ports etc under systemd) on a raspberry pi. It's all working fine, but I am noticing that the web editor for the development/test instance is frequently di…

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## [Status node not working](https://discourse.nodered.org/t/status-node-not-working/90199)

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**Author:** [@saraltech](https://discourse.nodered.org/u/saraltech)\
**Replies:** 2\
**Last updated:** [16 August 2024 07:40 UTC](https://discourse.nodered.org/t/status-node-not-working/90199 "2024-08-16T07:40:21Z")

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Hi, I am not able to get status from Status node. Output is always "undefined". My nodered flow is as below: \[ { "id": "8ba35e7a5a5f4383", "type": "modbus-read", "z": "12ee9b8b0c05cf74", …

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## [Copying long content in editor](https://discourse.nodered.org/t/copying-long-content-in-editor/90201)

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**Author:** [@HaroldPetersInskipp](https://discourse.nodered.org/u/HaroldPetersInskipp)\
**Replies:** 7\
**Last updated:** [15 August 2024 21:06 UTC](https://discourse.nodered.org/t/copying-long-content-in-editor/90201 "2024-08-15T21:06:05Z")

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It seems I am unable to copy long content from nodes in the editor without it being abbreviated. Node-RED: version 4.0.2 Browser: Firefox version 129.0.1 I am able to copy long content from other tabs/urls (not Node-R…

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## [Please help me format my HTTP POST so that the data of the image actually gets sent](https://discourse.nodered.org/t/please-help-me-format-my-http-post-so-that-the-data-of-the-image-actually-gets-sent/90197)

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**Author:** [@no\_mpimpi](https://discourse.nodered.org/u/no_mpimpi)\
**Replies:** 3\
**Last updated:** [15 August 2024 15:38 UTC](https://discourse.nodered.org/t/please-help-me-format-my-http-post-so-that-the-data-of-the-image-actually-gets-sent/90197 "2024-08-15T15:38:23Z")

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Hi all, I desperately need help formatting a POST command. I've searched, but obviously not well, or I'd not be posting. I've lost a day to this, and I'm beating my head against the wall. I'm trying to send an image to…

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## [Getting DeprecationWarnings](https://discourse.nodered.org/t/getting-deprecationwarnings/90187)

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**Author:** [@janvda](https://discourse.nodered.org/u/janvda)\
**Replies:** 1\
**Last updated:** [15 August 2024 08:59 UTC](https://discourse.nodered.org/t/getting-deprecationwarnings/90187 "2024-08-15T08:59:53Z")

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Lately (I think after upgrading node-red to v4.0.2 in docker) I am seeing 2 deprecationWarnings. Welcome to Node-RED =================== 15 Aug 10:44:08 - \[info\] Node-RED version: v4.0.2 15 Aug 10:44:08 - \[info\] Node.j…

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## [Leakage detector](https://discourse.nodered.org/t/leakage-detector/90142)

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**Author:** [@martonpeter1](https://discourse.nodered.org/u/martonpeter1)\
**Replies:** 2\
**Last updated:** [15 August 2024 07:10 UTC](https://discourse.nodered.org/t/leakage-detector/90142 "2024-08-15T07:10:42Z")

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Hi! I have some Ewelink Leakage Detectors.. Im checking them trough Node-red, but unfortunately its able to see only two states: battery and RSSI. Nothing about the leak itself. Means it is useless. How can I solve thi…

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## [Victron Node-Red instance ... does anybody know how to use MQTT Broker?](https://discourse.nodered.org/t/victron-node-red-instance-does-anybody-know-how-to-use-mqtt-broker/90166)

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**Author:** [@Gawan](https://discourse.nodered.org/u/Gawan)\
**Replies:** 2\
**Last updated:** [14 August 2024 11:08 UTC](https://discourse.nodered.org/t/victron-node-red-instance-does-anybody-know-how-to-use-mqtt-broker/90166 "2024-08-14T11:08:35Z")

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Hi all, I am using a Victron Cerbo device with integrated Node-Red instance (Venus OS Large). There is an integrated MQTT broker that works basically fine - I get all messages from Victron into my Node-Red instance usi…

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## [Update Node-RED from 3.1.1 to 4.0.0 on RPi failed](https://discourse.nodered.org/t/update-node-red-from-3-1-1-to-4-0-0-on-rpi-failed/88849)

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**Author:** [@GerdRuetten](https://discourse.nodered.org/u/GerdRuetten)\
**Replies:** 4\
**Last updated:** [14 August 2024 10:39 UTC](https://discourse.nodered.org/t/update-node-red-from-3-1-1-to-4-0-0-on-rpi-failed/88849 "2024-08-14T10:39:33Z")

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Hello, I would like to update my RPi Node-RED from version 3.1.1 to version 4.0.0. Node-RED runs in a Docker container. I get the following error message: \[+\] Pulling 0/1 ⠸ nodered Pulling no matching manifest for …

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## [Configuring Flowfuse Self-Hosted with access from another machines in the same network](https://discourse.nodered.org/t/configuring-flowfuse-self-hosted-with-access-from-another-machines-in-the-same-network/90157)

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**Author:** [@edu](https://discourse.nodered.org/u/edu)\
**Replies:** 4\
**Last updated:** [14 August 2024 09:11 UTC](https://discourse.nodered.org/t/configuring-flowfuse-self-hosted-with-access-from-another-machines-in-the-same-network/90157 "2024-08-14T09:11:24Z")

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Hello there, I've been working locally with flowfuse self-hosted v2.7.0 and i wanted to access the editor/dashboard (specifically the dashboard) from another machine. I set up a new installation on a new machine that wi…

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## [Asking Alexa to read out a temperature](https://discourse.nodered.org/t/asking-alexa-to-read-out-a-temperature/90126)

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**Author:** [@SomersetSmartHome](https://discourse.nodered.org/u/SomersetSmartHome)\
**Replies:** 9\
**Last updated:** [14 August 2024 09:10 UTC](https://discourse.nodered.org/t/asking-alexa-to-read-out-a-temperature/90126 "2024-08-14T09:10:14Z")

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I am trying to persuade Alexa to tell me a temperature of a sensor using node-red-contrib-virtual-smart-home. The sensor is from a Loxone system which displays them on a dashboard ok, but the problem is more basic becau…

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## [Deprecation warnings with v4.0.2](https://discourse.nodered.org/t/deprecation-warnings-with-v4-0-2/89526)

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**Author:** [@frankynpm](https://discourse.nodered.org/u/frankynpm)\
**Replies:** 2\
**Last updated:** [14 August 2024 09:00 UTC](https://discourse.nodered.org/t/deprecation-warnings-with-v4-0-2/89526 "2024-08-14T09:00:27Z")

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Just did a fresh install of node js v22.4.1 and of node red v4.0.2 and I am getting the following: (node:7332) \[DEP0059\] DeprecationWarning: The util.log API is deprecated. Please use console.log() with a custom formatt…

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## [How to use node module "crypto" correctly?](https://discourse.nodered.org/t/how-to-use-node-module-crypto-correctly/90170)

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**Author:** [@kitori](https://discourse.nodered.org/u/kitori)\
**Replies:** 3\
**Last updated:** [14 August 2024 08:39 UTC](https://discourse.nodered.org/t/how-to-use-node-module-crypto-correctly/90170 "2024-08-14T08:39:07Z")

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i want to calc a hmac with md5. crypto-js is not longer maintained. crypto-js - npm Is it possible to use node:crypto in a function node? https://nodejs.org/docs/latest-v20.x/api/crypto.html#class-hmac Am i overthink…

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## [Controlling modbus rtu relay](https://discourse.nodered.org/t/controlling-modbus-rtu-relay/90013)

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**Author:** [@jaredlgeorge](https://discourse.nodered.org/u/jaredlgeorge)\
**Replies:** 18\
**Last updated:** [13 August 2024 22:23 UTC](https://discourse.nodered.org/t/controlling-modbus-rtu-relay/90013 "2024-08-13T22:23:54Z")

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My setup: Raspberry pi cm4 with rs485 Waveshare modbus rtu relay I have a raspberry pi device with rs 485 connection. My relay has rs 485 as well. I need to send this 01 05 00 00 FF 00 8C 3A to the relay device to c…

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## [Help with message queuing (maybe a repeat)](https://discourse.nodered.org/t/help-with-message-queuing-maybe-a-repeat/90134)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 6\
**Last updated:** [13 August 2024 21:10 UTC](https://discourse.nodered.org/t/help-with-message-queuing-maybe-a-repeat/90134 "2024-08-13T21:10:40Z")

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I went back through my history to check and couldn't find anything, so this is a post asking for help with messages. I've got into voice messages and not allowing them all to play at once is a challenge. I have a gate …

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## [Several node-red containers are reported as unhealthy by docker](https://discourse.nodered.org/t/several-node-red-containers-are-reported-as-unhealthy-by-docker/90152)

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**Author:** [@janvda](https://discourse.nodered.org/u/janvda)\
**Replies:** 6\
**Last updated:** [13 August 2024 19:37 UTC](https://discourse.nodered.org/t/several-node-red-containers-are-reported-as-unhealthy-by-docker/90152 "2024-08-13T19:37:46Z")

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Lately I noticed that several of my node-red containers are reported as unhealthy by docker. This is the inspect output for such a container { "Id": "b282259f2feb6bbbe6e46ca6a56efa25f24c25d152cd2601d236740d7b26fbf0…

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## [Nrgpio python command not running](https://discourse.nodered.org/t/nrgpio-python-command-not-running/90006)

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**Author:** [@mima232](https://discourse.nodered.org/u/mima232)\
**Replies:** 39\
**Last updated:** [13 August 2024 15:18 UTC](https://discourse.nodered.org/t/nrgpio-python-command-not-running/90006 "2024-08-13T15:18:08Z")

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Hello, I wanted to update my systems from the legacy Bullseye distro to the new Bookworm, however I've got this issue, which has some strange behaviour - when I use the gpio node, i get the error: "nrgpio python comman…

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## [Data parsing from function node to Javascript](https://discourse.nodered.org/t/data-parsing-from-function-node-to-javascript/90149)

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**Author:** [@JanIwnl](https://discourse.nodered.org/u/JanIwnl)\
**Replies:** 0\
**Last updated:** [13 August 2024 11:58 UTC](https://discourse.nodered.org/t/data-parsing-from-function-node-to-javascript/90149 "2024-08-13T11:58:20Z")

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I'm using Node-RED in a Docker environment (v3.0.2) and I'm working on a flow where a user can input an ID into a search bar. Upon entering the ID, the flow triggers the first HTTP GET request, which retrieves some data,…

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## [Change name of project's package file](https://discourse.nodered.org/t/change-name-of-projects-package-file/90132)

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**Author:** [@lorccan](https://discourse.nodered.org/u/lorccan)\
**Replies:** 2\
**Last updated:** [12 August 2024 22:35 UTC](https://discourse.nodered.org/t/change-name-of-projects-package-file/90132 "2024-08-12T22:35:04Z")

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I have two instances of Node-RED, one production, the other for testing. Because I have just started using Projects, I have some flows in the production side that I would like to move to testing. I'm attempting to do th…

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## [Which players are available to be driven by NR](https://discourse.nodered.org/t/which-players-are-available-to-be-driven-by-nr/89956)

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**Author:** [@GiovanniG](https://discourse.nodered.org/u/GiovanniG)\
**Replies:** 12\
**Last updated:** [12 August 2024 21:32 UTC](https://discourse.nodered.org/t/which-players-are-available-to-be-driven-by-nr/89956 "2024-08-12T21:32:37Z")

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Hi, actually I'm using node-red-contrib-kodi 0.2.8 and I'm not very happy, from one site NR suffers from crashes caused by this module, which is 9 yo and the author seams abandoned the project, from the other side from K…

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## [How to kill node-red workflow](https://discourse.nodered.org/t/how-to-kill-node-red-workflow/89839)

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**Author:** [@mzadoian](https://discourse.nodered.org/u/mzadoian)\
**Replies:** 10\
**Last updated:** [12 August 2024 14:40 UTC](https://discourse.nodered.org/t/how-to-kill-node-red-workflow/89839 "2024-08-12T14:40:52Z")

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Hello, I have one http-in and multiple http-response nodes. Due to infrastructure limitations, requests can't be executed longer than 30 seconds. Also, one flow can contain multiple such workflows. How can I kill the…

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## [Where can I find searchable documentation for nodered?](https://discourse.nodered.org/t/where-can-i-find-searchable-documentation-for-nodered/89870)

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**Author:** [@matssvensson](https://discourse.nodered.org/u/matssvensson)\
**Replies:** 7\
**Last updated:** [12 August 2024 11:24 UTC](https://discourse.nodered.org/t/where-can-i-find-searchable-documentation-for-nodered/89870 "2024-08-12T11:24:49Z")

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I'm trying to evaluate if nodered can be used for a project. Functioning documentation is a base requirement for any added dependency. But I can find no way to search the info here: https://nodered.org/docs/ That's t…

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## [Reset info stored into a particular node (full deploy does it)](https://discourse.nodered.org/t/reset-info-stored-into-a-particular-node-full-deploy-does-it/90075)

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**Author:** [@GiovanniG](https://discourse.nodered.org/u/GiovanniG)\
**Replies:** 2\
**Last updated:** [9 August 2024 14:30 UTC](https://discourse.nodered.org/t/reset-info-stored-into-a-particular-node-full-deploy-does-it/90075 "2024-08-09T14:30:48Z")

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Hi, unfortunately I'm using a module where the author abandoned development, no chance to edit it. This module stores all the values that it coudn't output due to target device unavailable (TV), as result, then the TV ap…

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## [Problems with csv file reading and its representation in a chart](https://discourse.nodered.org/t/problems-with-csv-file-reading-and-its-representation-in-a-chart/90117)

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**Author:** [@YanWen37](https://discourse.nodered.org/u/YanWen37)\
**Replies:** 7\
**Last updated:** [12 August 2024 08:55 UTC](https://discourse.nodered.org/t/problems-with-csv-file-reading-and-its-representation-in-a-chart/90117 "2024-08-12T08:55:54Z")

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Hi, I am trying to build a simple data detector.but i face some problems in file read and its representation. I plan to use a dropdown to give users the choice they want. And their choice will be shown in form of single…

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## [Node-red-v4-contrib-redis seems renamed](https://discourse.nodered.org/t/node-red-v4-contrib-redis-seems-renamed/89415)

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**Author:** [@zba](https://discourse.nodered.org/u/zba)\
**Replies:** 6\
**Last updated:** [12 August 2024 08:52 UTC](https://discourse.nodered.org/t/node-red-v4-contrib-redis-seems-renamed/89415 "2024-08-12T08:52:09Z")

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To ones who used it - yesterday I found my builds not work anymore, so I found node-red-v4-contrib-redis was silently renamed to node-red-redis by this commit: you need to update your package.json manually to @golfve…

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## [On/off/blink functionality](https://discourse.nodered.org/t/on-off-blink-functionality/90114)

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**Author:** [@matisok](https://discourse.nodered.org/u/matisok)\
**Replies:** 2\
**Last updated:** [12 August 2024 05:44 UTC](https://discourse.nodered.org/t/on-off-blink-functionality/90114 "2024-08-12T05:44:13Z")

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flows-4.json (5.1 KB) Hi. I use node-red on my boat to control a physical LED panel which shows the status of the electrical equipment on board. I use Shelly relays. When my water heater is turned on I would like my L…

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## [Write file to a local disk drive](https://discourse.nodered.org/t/write-file-to-a-local-disk-drive/90101)

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**Author:** [@bachphi](https://discourse.nodered.org/u/bachphi)\
**Replies:** 3\
**Last updated:** [11 August 2024 23:24 UTC](https://discourse.nodered.org/t/write-file-to-a-local-disk-drive/90101 "2024-08-11T23:24:19Z")

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I am injecting a simple 'Hello' string into a file and want to save the file to my local PC. However, since Node-RED is running on a server, all attempts have resulted in the file being written to the server instead. Is …

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