# Latest

**URL:** https://discourse.nodered.org/latest.md?page=622

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

**Page:** 623

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## [Hardware recommendations (2022) for node red home automation server](https://discourse.nodered.org/t/hardware-recommendations-2022-for-node-red-home-automation-server/58534)

<div class="topic-metadata">

**Author:** [@steirx](https://discourse.nodered.org/u/steirx)\
**Replies:** 21\
**Last updated:** [24 February 2022 06:42 UTC](https://discourse.nodered.org/t/hardware-recommendations-2022-for-node-red-home-automation-server/58534 "2022-02-24T06:42:46Z")

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hi everyone, I understand that this topic had been approached a couple of times in the past and there is no one-size -fits-all but I wanted to reach out to the community for their practical experience and tips on what m…

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## [Dynamic MQTT node's "actions-\>connect" guidance needed](https://discourse.nodered.org/t/dynamic-mqtt-nodes-actions-connect-guidance-needed/58878)

<div class="topic-metadata">

**Author:** [@dattasaurabh82](https://discourse.nodered.org/u/dattasaurabh82)\
**Replies:** 2\
**Last updated:** [24 February 2022 04:23 UTC](https://discourse.nodered.org/t/dynamic-mqtt-nodes-actions-connect-guidance-needed/58878 "2022-02-24T04:23:41Z")

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Hi there, I am a little bit stuck and have some question regarding the "dynamic support" for MQTT nodes (both in and out). To illustrate my issue: here's my flow: \[{"id":"8afdb9e0485c9da7","type":"tab","label":"Flow 2…

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## [How to upload pdf file to sql sever](https://discourse.nodered.org/t/how-to-upload-pdf-file-to-sql-sever/58886)

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**Author:** [@chawana](https://discourse.nodered.org/u/chawana)\
**Replies:** 3\
**Last updated:** [24 February 2022 03:20 UTC](https://discourse.nodered.org/t/how-to-upload-pdf-file-to-sql-sever/58886 "2022-02-24T03:20:28Z")

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Some one can guild line me for uplaod or insert pdf file to sql database

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## [RegEx in function-node](https://discourse.nodered.org/t/regex-in-function-node/58763)

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**Author:** [@Ropper](https://discourse.nodered.org/u/Ropper)\
**Replies:** 23\
**Last updated:** [23 February 2022 23:19 UTC](https://discourse.nodered.org/t/regex-in-function-node/58763 "2022-02-23T23:19:20Z")

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Hi all Gurus: I just threw my self into the node-red carousell, and imediately ran into problems. I Created a flow where I SSH to all my Raspberry Pis, requested each and other CPU-temp. Those temps are forwarded to a…

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## [MQTT config and general questions](https://discourse.nodered.org/t/mqtt-config-and-general-questions/58853)

<div class="topic-metadata">

**Author:** [@gerry](https://discourse.nodered.org/u/gerry)\
**Replies:** 18\
**Last updated:** [23 February 2022 23:05 UTC](https://discourse.nodered.org/t/mqtt-config-and-general-questions/58853 "2022-02-23T23:05:23Z")

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I have several pi's running MQTT and it all seems to work. Several weeks ago I saw a post where someone had trouble with MQTT disconnects and the answer seemed to be remove the broker from the pi and just use node red. I…

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## [Problem with current state](https://discourse.nodered.org/t/problem-with-current-state/58599)

<div class="topic-metadata">

**Author:** [@Leopoll](https://discourse.nodered.org/u/Leopoll)\
**Replies:** 27\
**Last updated:** [23 February 2022 21:34 UTC](https://discourse.nodered.org/t/problem-with-current-state/58599 "2022-02-23T21:34:25Z")

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I'm making a simple scheme that the light doesn't turn off as soon as the motion sensor stops detecting motion. The problem is in the current state node "if lamp is OFF". If it is triggered by a timestamp1, then everyth…

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## [This is a 'node' question, but given the gurus here, someone may have insight to the following error?](https://discourse.nodered.org/t/this-is-a-node-question-but-given-the-gurus-here-someone-may-have-insight-to-the-following-error/58784)

<div class="topic-metadata">

**Author:** [@Nodi.Rubrum](https://discourse.nodered.org/u/Nodi.Rubrum)\
**Replies:** 5\
**Last updated:** [23 February 2022 20:53 UTC](https://discourse.nodered.org/t/this-is-a-node-question-but-given-the-gurus-here-someone-may-have-insight-to-the-following-error/58784 "2022-02-23T20:53:44Z")

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I have for some time stopped running NR directly on Pi devices below Model 3, for various reasons. But I still test NR on lower end Pi devices from an interest perspective. I just created a ARM v6 based build image tha…

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## [Delay node: drop intermediate, except last](https://discourse.nodered.org/t/delay-node-drop-intermediate-except-last/58810)

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**Author:** [@jonasd](https://discourse.nodered.org/u/jonasd)\
**Replies:** 34\
**Last updated:** [23 February 2022 15:56 UTC](https://discourse.nodered.org/t/delay-node-drop-intermediate-except-last/58810 "2022-02-23T15:56:28Z")

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I'd like to extend the delay node to allow dropping intermediate messages; but always send the last of the rate-limited messages (if any) after the limit. use-case: I use node-red to control my thermostat; in some cases…

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## [Manipulating Message Contents - A nudge in the right direction needed](https://discourse.nodered.org/t/manipulating-message-contents-a-nudge-in-the-right-direction-needed/58887)

<div class="topic-metadata">

**Author:** [@eddee54455](https://discourse.nodered.org/u/eddee54455)\
**Replies:** 2\
**Last updated:** [23 February 2022 15:55 UTC](https://discourse.nodered.org/t/manipulating-message-contents-a-nudge-in-the-right-direction-needed/58887 "2022-02-23T15:55:59Z")

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Hi Oracles!! I have a problem with the syntax needed to manipulate message contents... Coming into a function node, I have a msg.payload of True or False, and a message topic-ie "powerOn" I need to manipulate this inf…

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## [Very slow dashboard followed by no automation function](https://discourse.nodered.org/t/very-slow-dashboard-followed-by-no-automation-function/58822)

<div class="topic-metadata">

**Author:** [@CraigW](https://discourse.nodered.org/u/CraigW)\
**Replies:** 12\
**Last updated:** [23 February 2022 15:32 UTC](https://discourse.nodered.org/t/very-slow-dashboard-followed-by-no-automation-function/58822 "2022-02-23T15:32:57Z")

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Have a RPi 3/NodeRed system running perfectly since 2019 {I believe} with ZERO downtime. No modifications have been made in the last 6 months. I see there has been similar discussions in the past which are now locked. J…

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## [Modifying an existing dashboard layout... Then this](https://discourse.nodered.org/t/modifying-an-existing-dashboard-layout-then-this/58683)

<div class="topic-metadata">

**Author:** [@eddee54455](https://discourse.nodered.org/u/eddee54455)\
**Replies:** 6\
**Last updated:** [23 February 2022 15:26 UTC](https://discourse.nodered.org/t/modifying-an-existing-dashboard-layout-then-this/58683 "2022-02-23T15:26:53Z")

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Was sorting out a dashboard layout... moved a few things around, no change to contents of nodes, simply sizing on the layout editor and got this: Any Idea how I have screwed up? Regds Ed

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## [Buttons, pressing and when to send messages](https://discourse.nodered.org/t/buttons-pressing-and-when-to-send-messages/58629)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 31\
**Last updated:** [23 February 2022 14:51 UTC](https://discourse.nodered.org/t/buttons-pressing-and-when-to-send-messages/58629 "2022-02-23T14:51:53Z")

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(I know: I'm making my own life difficult... but...) I have a couple of projects - one of which I have already put up here - which are subflows to give you a safety feature that you have to double click a button befor…

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## [Read out a global variable](https://discourse.nodered.org/t/read-out-a-global-variable/58879)

<div class="topic-metadata">

**Author:** [@Milanovic](https://discourse.nodered.org/u/Milanovic)\
**Replies:** 1\
**Last updated:** [23 February 2022 12:23 UTC](https://discourse.nodered.org/t/read-out-a-global-variable/58879 "2022-02-23T12:23:53Z")

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Hi, I am trying to read one specific value out of the global variable 'token'. But like you can see, the result is 'undefined'. So I think that the first lane isn't correct, can anyone help?

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## [Apples and Bananas but no Fruit](https://discourse.nodered.org/t/apples-and-bananas-but-no-fruit/58875)

<div class="topic-metadata">

**Author:** [@CarloJongen](https://discourse.nodered.org/u/CarloJongen)\
**Replies:** 5\
**Last updated:** [23 February 2022 12:00 UTC](https://discourse.nodered.org/t/apples-and-bananas-but-no-fruit/58875 "2022-02-23T12:00:01Z")

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So I've made this simple setup. I inject a Json msg "A" and this results in Global TEST "A". When I inject Json msg "B" I get the Global TEST "B" as result. But what if I only wanted to change the amount Apples & Banan…

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## [Number is double](https://discourse.nodered.org/t/number-is-double/58863)

<div class="topic-metadata">

**Author:** [@madmax](https://discourse.nodered.org/u/madmax)\
**Replies:** 4\
**Last updated:** [23 February 2022 12:00 UTC](https://discourse.nodered.org/t/number-is-double/58863 "2022-02-23T12:00:00Z")

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Hello! I have a CSV list with two values. Is there a possibility to check whether a number is double in the second value. here is an example. TEST;123,124,124,125,126, Result. TEST = 124

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## [Why are the dashboard LED sizes different on different machines?](https://discourse.nodered.org/t/why-are-the-dashboard-led-sizes-different-on-different-machines/58874)

<div class="topic-metadata">

**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 2\
**Last updated:** [23 February 2022 11:47 UTC](https://discourse.nodered.org/t/why-are-the-dashboard-led-sizes-different-on-different-machines/58874 "2022-02-23T11:47:53Z")

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(I'm not having a good day) Machine 1: Ubuntu NUC NR 2.1.4 Dashboard 2.28.1 LED 0.4.9 Machine 2: RasPi BUSTER NR 2.1.4 Dashboard 2.26.2 LED 0.4.8 (Ok there's one difference) But here's what I'm seeing as s…

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## [Access different nodes values in function to Enable different Outputs](https://discourse.nodered.org/t/access-different-nodes-values-in-function-to-enable-different-outputs/58830)

<div class="topic-metadata">

**Author:** [@obi1987](https://discourse.nodered.org/u/obi1987)\
**Replies:** 13\
**Last updated:** [23 February 2022 11:30 UTC](https://discourse.nodered.org/t/access-different-nodes-values-in-function-to-enable-different-outputs/58830 "2022-02-23T11:30:02Z")

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Hello, I want to read different nodes values in the function to enable different outputs. How can I do that? Thanks

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## [Sending JSON body with template node](https://discourse.nodered.org/t/sending-json-body-with-template-node/58865)

<div class="topic-metadata">

**Author:** [@Milanovic](https://discourse.nodered.org/u/Milanovic)\
**Replies:** 4\
**Last updated:** [23 February 2022 11:10 UTC](https://discourse.nodered.org/t/sending-json-body-with-template-node/58865 "2022-02-23T11:10:00Z")

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Hi, I am trying to send an JSON body to my HTTP request. But I need to give a percentage in the body, that's the reason why I use the template node. When I deploy I get an error "Unexpected end of JSON input", does any…

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## [Relocate items in Dashboard 🤔](https://discourse.nodered.org/t/relocate-items-in-dashboard/58809)

<div class="topic-metadata">

**Author:** [@noobmaster](https://discourse.nodered.org/u/noobmaster)\
**Replies:** 3\
**Last updated:** [23 February 2022 11:16 UTC](https://discourse.nodered.org/t/relocate-items-in-dashboard/58809 "2022-02-23T11:16:43Z")

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my dashboard is automatically designed how to relocate or redesign it ?

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## [Solcast API GET returns html](https://discourse.nodered.org/t/solcast-api-get-returns-html/58855)

<div class="topic-metadata">

**Author:** [@trialnerror](https://discourse.nodered.org/u/trialnerror)\
**Replies:** 3\
**Last updated:** [23 February 2022 10:50 UTC](https://discourse.nodered.org/t/solcast-api-get-returns-html/58855 "2022-02-23T10:50:18Z")

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I'm not too sure where the problem lies with this one, but it seems to arise in Node-Red only so I'm asking here first. Solcast API call should return JSON, but I seem to only get back html in NR. My call is: https://…

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## [JSONata retrieve child objects](https://discourse.nodered.org/t/jsonata-retrieve-child-objects/58867)

<div class="topic-metadata">

**Author:** [@Imo](https://discourse.nodered.org/u/Imo)\
**Replies:** 1\
**Last updated:** [23 February 2022 10:46 UTC](https://discourse.nodered.org/t/jsonata-retrieve-child-objects/58867 "2022-02-23T10:46:43Z")

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Hi all, please help. I am new in jsonata. How can I modify this: { "store": { "abc1": { "category": "reference", "author": "Nigel Rees", "title": "Sayings o…

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## [Whatsapp messages for employees managment](https://discourse.nodered.org/t/whatsapp-messages-for-employees-managment/58622)

<div class="topic-metadata">

**Author:** [@DemalCal96](https://discourse.nodered.org/u/DemalCal96)\
**Replies:** 9\
**Last updated:** [23 February 2022 10:41 UTC](https://discourse.nodered.org/t/whatsapp-messages-for-employees-managment/58622 "2022-02-23T10:41:49Z")

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Hello to all. I want to know if it is possible to receive messages sent in a whatsapp group for the following purpose. The goal would be to be able to recognize the message and by whom it was sent, then use that message…

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## [Combine different Input-Node in a Function Node](https://discourse.nodered.org/t/combine-different-input-node-in-a-function-node/58308)

<div class="topic-metadata">

**Author:** [@Node4Home](https://discourse.nodered.org/u/Node4Home)\
**Replies:** 9\
**Last updated:** [23 February 2022 10:32 UTC](https://discourse.nodered.org/t/combine-different-input-node-in-a-function-node/58308 "2022-02-23T10:32:31Z")

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Hello, I'm new to the forum and have little experience with NodeRed. I'm working on the topic right now. I currently have a problem. I would like to send an e-mail, SMS or a WhatsApp message when the trigger node (5 se…

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## [Get string from serial port and convert to separate key](https://discourse.nodered.org/t/get-string-from-serial-port-and-convert-to-separate-key/58858)

<div class="topic-metadata">

**Author:** [@dinesh920](https://discourse.nodered.org/u/dinesh920)\
**Replies:** 5\
**Last updated:** [23 February 2022 09:33 UTC](https://discourse.nodered.org/t/get-string-from-serial-port-and-convert-to-separate-key/58858 "2022-02-23T09:33:22Z")

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I am getting "Humidity: 64.40%, Temperature: 32.00 Celsius" which is in string from my serial port. I wish to change it to key value data. This is so that I can do gauge for humidity and temperature separately. Do advice…

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## [Max size of a project?](https://discourse.nodered.org/t/max-size-of-a-project/58849)

<div class="topic-metadata">

**Author:** [@Rgrove](https://discourse.nodered.org/u/Rgrove)\
**Replies:** 1\
**Last updated:** [23 February 2022 09:23 UTC](https://discourse.nodered.org/t/max-size-of-a-project/58849 "2022-02-23T09:23:48Z")

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I have a project I started out to keep some work organized and watch some sensors, and it's gone from being a simple/personal monitor of a few contact closures on a Pi, to a much larger SNMP querying and pinging system, …

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## [Issue with Import - results in duplicates](https://discourse.nodered.org/t/issue-with-import-results-in-duplicates/58836)

<div class="topic-metadata">

**Author:** [@SandeepA](https://discourse.nodered.org/u/SandeepA)\
**Replies:** 0\
**Last updated:** [22 February 2022 19:48 UTC](https://discourse.nodered.org/t/issue-with-import-results-in-duplicates/58836 "2022-02-22T19:48:51Z")

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Hi , Not sure if anyone else faced. Everytime i do import of flows / subflows - on selecting "replace" for flows/subflows in "view nodes" option for existing nodes -- the system ends up creating duplicate copies. So …

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## [How to name an array](https://discourse.nodered.org/t/how-to-name-an-array/58818)

<div class="topic-metadata">

**Author:** [@Olivia](https://discourse.nodered.org/u/Olivia)\
**Replies:** 16\
**Last updated:** [23 February 2022 08:24 UTC](https://discourse.nodered.org/t/how-to-name-an-array/58818 "2022-02-23T08:24:21Z")

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Hello everyone, I would like to name my arrays inside of the main array. Does anyone know how i can do that ? Thanks in advance !

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## [Graph shows no data unless input changed](https://discourse.nodered.org/t/graph-shows-no-data-unless-input-changed/58844)

<div class="topic-metadata">

**Author:** [@Hayder](https://discourse.nodered.org/u/Hayder)\
**Replies:** 11\
**Last updated:** [23 February 2022 07:11 UTC](https://discourse.nodered.org/t/graph-shows-no-data-unless-input-changed/58844 "2022-02-23T07:11:54Z")

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I have made a simple dashboard, the problem is if the slider is not changed, the graph is frozen until the slider is being moved. If I do not change the slider value even for an hour, I got nothing instead of a steady …

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## [🎉 Node-RED 2.2.2 released](https://discourse.nodered.org/t/node-red-2-2-2-released/58606)

<div class="topic-metadata">

**Author:** [@knolleary](https://discourse.nodered.org/u/knolleary)\
**Replies:** 23\
**Last updated:** [23 February 2022 07:05 UTC](https://discourse.nodered.org/t/node-red-2-2-2-released/58606 "2022-02-23T07:05:55Z")

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Node-RED 2.2.2 is now available. This has a single fix for a timeout issue with the MQTT nodes when deploying changes. A big thanks to @Steve-Mcl for tracking this one down.

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## [Get 502 Bad Gateway from HA while selecting Node-RED](https://discourse.nodered.org/t/get-502-bad-gateway-from-ha-while-selecting-node-red/58831)

<div class="topic-metadata">

**Author:** [@SWAXXIII](https://discourse.nodered.org/u/SWAXXIII)\
**Replies:** 4\
**Last updated:** [23 February 2022 03:10 UTC](https://discourse.nodered.org/t/get-502-bad-gateway-from-ha-while-selecting-node-red/58831 "2022-02-23T03:10:12Z")

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I have been using Node-RED for a couple of months and love it. Unfortunately, I can no longer access it; I get 502 Bad Gateway nginx. The two newest changes I made were upgrading to the latest release of Node-RED and c…

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