# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=98

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

**Page:** 99

---

## [Imported flow being "cut"](https://discourse.nodered.org/t/imported-flow-being-cut/89347)

<div class="topic-metadata">

**Author:** [@mrark](https://discourse.nodered.org/u/mrark)\
**Replies:** 3\
**Last updated:** [8 July 2024 12:30 UTC](https://discourse.nodered.org/t/imported-flow-being-cut/89347 "2024-07-08T12:30:40Z")

</div>

Hello everyone, I am experiencing what I think could be a weird bug. This is a screenshot from the main server node: here you can see the flow (which was imported from my node, since I don't do develop directly on t…

---

## [Forward payload or replace it with own payload - depending on a condition?](https://discourse.nodered.org/t/forward-payload-or-replace-it-with-own-payload-depending-on-a-condition/89345)

<div class="topic-metadata">

**Author:** [@RK\_aus\_S](https://discourse.nodered.org/u/RK_aus_S)\
**Replies:** 2\
**Last updated:** [8 July 2024 10:07 UTC](https://discourse.nodered.org/t/forward-payload-or-replace-it-with-own-payload-depending-on-a-condition/89345 "2024-07-08T10:07:34Z")

</div>

Hi I'm quite new with Node-RED, therefore, my question may seem a little stupid?: Initial situation: Node "A" sends a number payload every 1 minute Node "B" is a dashboard button which sends a boolen payload "true" o…

---

## [Jsonata in function node-](https://discourse.nodered.org/t/jsonata-in-function-node/89335)

<div class="topic-metadata">

**Author:** [@smanjunath211](https://discourse.nodered.org/u/smanjunath211)\
**Replies:** 12\
**Last updated:** [8 July 2024 08:27 UTC](https://discourse.nodered.org/t/jsonata-in-function-node/89335 "2024-07-08T08:27:12Z")

</div>

I have many such mysql query outputs to assign to flow context, the change node becomes very big and difficult to manage, what is the equivalent to use jsonata in a function node ?

---

## [Set blinking state for LED while door is closing](https://discourse.nodered.org/t/set-blinking-state-for-led-while-door-is-closing/89282)

<div class="topic-metadata">

**Author:** [@delei](https://discourse.nodered.org/u/delei)\
**Replies:** 6\
**Last updated:** [8 July 2024 04:33 UTC](https://discourse.nodered.org/t/set-blinking-state-for-led-while-door-is-closing/89282 "2024-07-08T04:33:53Z")

</div>

Hello I want to set the blinking state of a LED on a dashboard while the garagen door is closing / opening. I am using Meross nodes to get the state of the door (is closed, is opened, it is opening, it is closing). My …

---

## [Need help sending base64 to myplantin.com api](https://discourse.nodered.org/t/need-help-sending-base64-to-myplantin-com-api/89245)

<div class="topic-metadata">

**Author:** [@mikey](https://discourse.nodered.org/u/mikey)\
**Replies:** 7\
**Last updated:** [7 July 2024 18:55 UTC](https://discourse.nodered.org/t/need-help-sending-base64-to-myplantin-com-api/89245 "2024-07-07T18:55:46Z")

</div>

had an idea i could take a snapshot from camera ontop of plant and send it to myplantin.com , this would then diagnose if the plant has any issues and i could scrape the results and return them in node red. eventually cr…

---

## [Pre-populating ui\_form](https://discourse.nodered.org/t/pre-populating-ui-form/89329)

<div class="topic-metadata">

**Author:** [@Bobo](https://discourse.nodered.org/u/Bobo)\
**Replies:** 3\
**Last updated:** [7 July 2024 11:27 UTC](https://discourse.nodered.org/t/pre-populating-ui-form/89329 "2024-07-07T11:27:38Z")

</div>

In the D2 docs here Form ui-form | Node-RED Dashboard 2.0, an example is given on how to pre-populate a ui-form. Has this actually been implemented? No matter what I have tried I cannot get a form to populate with the gi…

---

## [Automate ceiling fans using temperature difference between sensors](https://discourse.nodered.org/t/automate-ceiling-fans-using-temperature-difference-between-sensors/54813)

<div class="topic-metadata">

**Author:** [@connie](https://discourse.nodered.org/u/connie)\
**Replies:** 71\
**Last updated:** [6 July 2024 20:52 UTC](https://discourse.nodered.org/t/automate-ceiling-fans-using-temperature-difference-between-sensors/54813 "2024-07-06T20:52:41Z")

</div>

I am an absolute newbie to NR, and have received help with flows from my son. My goal is to try and create a flow that will compare the temperature difference between two sensors and have my ceiling fans come on. I have …

---

## [Push-play image/video by DLNA to Kodi](https://discourse.nodered.org/t/push-play-image-video-by-dlna-to-kodi/89160)

<div class="topic-metadata">

**Author:** [@GiovanniG](https://discourse.nodered.org/u/GiovanniG)\
**Replies:** 11\
**Last updated:** [6 July 2024 12:44 UTC](https://discourse.nodered.org/t/push-play-image-video-by-dlna-to-kodi/89160 "2024-07-06T12:44:34Z")

</div>

Hi mates, I have few experience about this and I need kindly your help. I've Kodi running on two TV on the same LAN, I want to drive them separately using a particular time between medias and schedule contents during the…

---

## [UIBUILDER: How to create and populate a table](https://discourse.nodered.org/t/uibuilder-how-to-create-and-populate-a-table/89317)

<div class="topic-metadata">

**Author:** [@ChZeman](https://discourse.nodered.org/u/ChZeman)\
**Replies:** 2\
**Last updated:** [6 July 2024 11:48 UTC](https://discourse.nodered.org/t/uibuilder-how-to-create-and-populate-a-table/89317 "2024-07-06T11:48:57Z")

</div>

It's possible I'm missing something somewhere, but I'm having a lot of trouble understanding how to create and populate a table. You'll see a post on your Discord server in getting-started I made a few days ago.

---

## [create a program that automatically scans cryptocurrency price differences between CEX and DEX exchanges](https://discourse.nodered.org/t/create-a-program-that-automatically-scans-cryptocurrency-price-differences-between-cex-and-dex-exchanges/89310)

<div class="topic-metadata">

**Author:** [@Henrybluesky](https://discourse.nodered.org/u/Henrybluesky)\
**Replies:** 2\
**Last updated:** [6 July 2024 11:34 UTC](https://discourse.nodered.org/t/create-a-program-that-automatically-scans-cryptocurrency-price-differences-between-cex-and-dex-exchanges/89310 "2024-07-06T11:34:19Z")

</div>

I'm struggling and having trouble creating a program that automatically scans for price differences between CEX exchanges (such as: Binance, Bybit, Okx, Bitget.. etc.) and DEX exchanges ( such as: Uniswap, Sushiswap, Pa…

---

## [Install/Update script fails, 502 error](https://discourse.nodered.org/t/install-update-script-fails-502-error/89138)

<div class="topic-metadata">

**Author:** [@impvan](https://discourse.nodered.org/u/impvan)\
**Replies:** 7\
**Last updated:** [5 July 2024 21:19 UTC](https://discourse.nodered.org/t/install-update-script-fails-502-error/89138 "2024-07-05T21:19:33Z")

</div>

Using the usual Pi update script: bash \<(curl -sL https://raw.githubusercontent.com/node-red/linux-installers/master/deb/update-nodejs-and-nodered) ...it fails at "Install new NodeJS" with curl: (22) The requested URL …

---

## [How to drop msg.payload from specific topics?](https://discourse.nodered.org/t/how-to-drop-msg-payload-from-specific-topics/88859)

<div class="topic-metadata">

**Author:** [@daxliniere](https://discourse.nodered.org/u/daxliniere)\
**Replies:** 27\
**Last updated:** [5 July 2024 19:45 UTC](https://discourse.nodered.org/t/how-to-drop-msg-payload-from-specific-topics/88859 "2024-07-05T19:45:13Z")

</div>

I have a function node that is receiving input from several nodes, each of which transmits on its own topic. The function checks if any of the payloads are true and then outputs true. Unfortunately it's also passing thro…

---

## [Incorrect Time in payload](https://discourse.nodered.org/t/incorrect-time-in-payload/89296)

<div class="topic-metadata">

**Author:** [@petitxef](https://discourse.nodered.org/u/petitxef)\
**Replies:** 3\
**Last updated:** [5 July 2024 15:56 UTC](https://discourse.nodered.org/t/incorrect-time-in-payload/89296 "2024-07-05T15:56:40Z")

</div>

Hi everyone! I'm using "get history" node to pull out info about an entity (TV LG). Also I use node red 4.0.2 and a RPi 4 with HA: The time that shows in the payload (last\_changed / last\_reported / last\_updated) the…

---

## [Modbus-Flex-Server settings](https://discourse.nodered.org/t/modbus-flex-server-settings/89300)

<div class="topic-metadata">

**Author:** [@enginebeat](https://discourse.nodered.org/u/enginebeat)\
**Replies:** 0\
**Last updated:** [5 July 2024 13:13 UTC](https://discourse.nodered.org/t/modbus-flex-server-settings/89300 "2024-07-05T13:13:49Z")

</div>

Hi All, I Manage ot get my modbus application working and all is well. I keep on having a look at the settings on the Modbus-Flex-Server node and I realised that I don't have a clue what they actually properly mean. I …

---

## [Installing pm2 services for windows](https://discourse.nodered.org/t/installing-pm2-services-for-windows/89285)

<div class="topic-metadata">

**Author:** [@Tharun](https://discourse.nodered.org/u/Tharun)\
**Replies:** 1\
**Last updated:** [5 July 2024 12:56 UTC](https://discourse.nodered.org/t/installing-pm2-services-for-windows/89285 "2024-07-05T12:56:49Z")

</div>

Dear Team, This query is based on how to install pm2 services for Windows I have flows running on the server whenever the internet gets interrupted or closed the command prompts that my flows stop how do restart it auto…

---

## [Creating an API for Reading and Writing Electrical Consumption Data with Node-RED](https://discourse.nodered.org/t/creating-an-api-for-reading-and-writing-electrical-consumption-data-with-node-red/89262)

<div class="topic-metadata">

**Author:** [@Khad](https://discourse.nodered.org/u/Khad)\
**Replies:** 11\
**Last updated:** [5 July 2024 09:26 UTC](https://discourse.nodered.org/t/creating-an-api-for-reading-and-writing-electrical-consumption-data-with-node-red/89262 "2024-07-05T09:26:52Z")

</div>

Hello everyone, I'm a student and I'm currently working on a project where I need to create an API to manage electrical consumption data. Here's the context: Data Reading: I retrieve electrical consumption data usin…

---

## [FlowFuse v2.6 Updates - AI Infused Node-RED, Persistent File Storage & Lots More](https://discourse.nodered.org/t/flowfuse-v2-6-updates-ai-infused-node-red-persistent-file-storage-lots-more/89291)

<div class="topic-metadata">

**Author:** [@joepavitt](https://discourse.nodered.org/u/joepavitt)\
**Replies:** 0\
**Last updated:** [5 July 2024 07:33 UTC](https://discourse.nodered.org/t/flowfuse-v2-6-updates-ai-infused-node-red-persistent-file-storage-lots-more/89291 "2024-07-05T07:33:46Z")

</div>

Full Article: FlowFuse 2.6: AI Infused Node-RED, Persistent File Storage & Lots More • FlowFuse Hi all, just sharing our latest release of FlowFuse, featuring: Persistent Storage Each instance now gets a piece of persi…

---

## [Debug Panel "\[object Object\]"](https://discourse.nodered.org/t/debug-panel-object-object/89271)

<div class="topic-metadata">

**Author:** [@tmichaeltx](https://discourse.nodered.org/u/tmichaeltx)\
**Replies:** 2\
**Last updated:** [4 July 2024 21:09 UTC](https://discourse.nodered.org/t/debug-panel-object-object/89271 "2024-07-04T21:09:56Z")

</div>

I have some large complex objects stored in my context variables. I have found that when I retrieve them via global.get, if I then use a node.warn inside my function node, it shows the retrieved object and lets me drill…

---

## [Node-red-ui-table don't refresh automatically](https://discourse.nodered.org/t/node-red-ui-table-dont-refresh-automatically/89268)

<div class="topic-metadata">

**Author:** [@pepe2](https://discourse.nodered.org/u/pepe2)\
**Replies:** 2\
**Last updated:** [4 July 2024 17:10 UTC](https://discourse.nodered.org/t/node-red-ui-table-dont-refresh-automatically/89268 "2024-07-04T17:10:55Z")

</div>

Hi, I try to make a table on my dashboard with the next nodes : \[ { "id": "2f67ebdfe05368a8", "type": "ui\_table", "z": "3e87841836f07711", "group": "475b1ea5d099553a", "name":…

---

## [SQL injection attacks security issue mysql](https://discourse.nodered.org/t/sql-injection-attacks-security-issue-mysql/89017)

<div class="topic-metadata">

**Author:** [@granxavi](https://discourse.nodered.org/u/granxavi)\
**Replies:** 16\
**Last updated:** [4 July 2024 13:32 UTC](https://discourse.nodered.org/t/sql-injection-attacks-security-issue-mysql/89017 "2024-07-04T13:32:19Z")

</div>

I HAVE ALREADY TRIED PREPARED STATEMENTS and STORED PROCEDURES but nothing seems to work. I am trying to implement a simple API where users can register on the DB. Everything works fine as expected. However, I noticed t…

---

## [Securing a single use resource](https://discourse.nodered.org/t/securing-a-single-use-resource/89240)

<div class="topic-metadata">

**Author:** [@mogul](https://discourse.nodered.org/u/mogul)\
**Replies:** 9\
**Last updated:** [4 July 2024 12:48 UTC](https://discourse.nodered.org/t/securing-a-single-use-resource/89240 "2024-07-04T12:48:04Z")

</div>

My flow has a single use resource, a modem on a serial port. From time to time, something triggers the flow and it needs to send a message on the modem. Now, it could happen that I get two triggers right after each oth…

---

## [Delay node queue](https://discourse.nodered.org/t/delay-node-queue/89232)

<div class="topic-metadata">

**Author:** [@j2002](https://discourse.nodered.org/u/j2002)\
**Replies:** 6\
**Last updated:** [4 July 2024 11:43 UTC](https://discourse.nodered.org/t/delay-node-queue/89232 "2024-07-04T11:43:15Z")

</div>

I need a little help because I'm not sure how to do that. In my flow I try to do a test every hour and, if the test conditions are not met, I send a message to a delay node, which sends it 600 seconds later. Again it ch…

---

## [Msg-size node - units](https://discourse.nodered.org/t/msg-size-node-units/89243)

<div class="topic-metadata">

**Author:** [@MakerMan](https://discourse.nodered.org/u/MakerMan)\
**Replies:** 3\
**Last updated:** [4 July 2024 08:52 UTC](https://discourse.nodered.org/t/msg-size-node-units/89243 "2024-07-04T08:52:28Z")

</div>

The msg-side node displays beside it a value in KB/hr and the msg object shows Am I correct in understanding that the values in the object are in Bytes ?

---

## [TLS Config Node: CA Certificate](https://discourse.nodered.org/t/tls-config-node-ca-certificate/88695)

<div class="topic-metadata">

**Author:** [@elegant\_dijkstra](https://discourse.nodered.org/u/elegant_dijkstra)\
**Replies:** 6\
**Last updated:** [4 July 2024 07:55 UTC](https://discourse.nodered.org/t/tls-config-node-ca-certificate/88695 "2024-07-04T07:55:35Z")

</div>

Hello everyone, when setting "Verify server certificate" und Uploading a Custom CA Cert in a TLS config, where is that cert actually stored? I need work behind a corporate firewall, if I set its certificate in the TLS …

---

## [Can anyone diagnose Node-red not running on Windows?](https://discourse.nodered.org/t/can-anyone-diagnose-node-red-not-running-on-windows/89199)

<div class="topic-metadata">

**Author:** [@jbudd](https://discourse.nodered.org/u/jbudd)\
**Replies:** 4\
**Last updated:** [4 July 2024 02:39 UTC](https://discourse.nodered.org/t/can-anyone-diagnose-node-red-not-running-on-windows/89199 "2024-07-04T02:39:11Z")

</div>

I have installed Node-red on a Windows 10 PC. Because it's thousands of miles away everything is done over Teamviewer. If I type node-red in a command window it runs and a browser opens localhost:1880. To run it autom…

---

## [Espa 4.4.4 rs232](https://discourse.nodered.org/t/espa-4-4-4-rs232/89239)

<div class="topic-metadata">

**Author:** [@OneOFFER](https://discourse.nodered.org/u/OneOFFER)\
**Replies:** 0\
**Last updated:** [3 July 2024 19:01 UTC](https://discourse.nodered.org/t/espa-4-4-4-rs232/89239 "2024-07-03T19:01:20Z")

</div>

Hi Does somebody has implemented a flow for the ESPA 4.4.4 protocol over RS232 ? br oneoffer

---

## [Python equivalent of flow.set() and flow.get()](https://discourse.nodered.org/t/python-equivalent-of-flow-set-and-flow-get/89187)

<div class="topic-metadata">

**Author:** [@Ouagadougou](https://discourse.nodered.org/u/Ouagadougou)\
**Replies:** 13\
**Last updated:** [3 July 2024 16:27 UTC](https://discourse.nodered.org/t/python-equivalent-of-flow-set-and-flow-get/89187 "2024-07-03T16:27:54Z")

</div>

Hi. I'm new to Node Red. Sorry, I'm using Python... I want to be able to share variables between nodes and all I can find is how to get data from sys.argv (so sent as a trigger from another node). My triggers to various …

---

## [Using openHASP with Node-Red](https://discourse.nodered.org/t/using-openhasp-with-node-red/81457)

<div class="topic-metadata">

**Author:** [@Sean-McG](https://discourse.nodered.org/u/Sean-McG)\
**Replies:** 90\
**Last updated:** [3 July 2024 00:30 UTC](https://discourse.nodered.org/t/using-openhasp-with-node-red/81457 "2024-07-03T00:30:39Z")

</div>

Like many others thinking of you @BartButenaers :wink: I have long been looking for a good solution to interacting with NR from a wall mounted device. I have seen and made various iterations of small screens etc, but t…

---

## [Node version selection in palette](https://discourse.nodered.org/t/node-version-selection-in-palette/89183)

<div class="topic-metadata">

**Author:** [@aitor](https://discourse.nodered.org/u/aitor)\
**Replies:** 6\
**Last updated:** [3 July 2024 00:20 UTC](https://discourse.nodered.org/t/node-version-selection-in-palette/89183 "2024-07-03T00:20:45Z")

</div>

Hello everyone, I've been working on some Node-RED projects recently and needed to install a bunch of nodes from the palette. There’s a great selection, but some nodes are better maintained than others. Because of this,…

---

## [GITHub and node-red](https://discourse.nodered.org/t/github-and-node-red/89182)

<div class="topic-metadata">

**Author:** [@JollyGreenGiant](https://discourse.nodered.org/u/JollyGreenGiant)\
**Replies:** 1\
**Last updated:** [2 July 2024 19:14 UTC](https://discourse.nodered.org/t/github-and-node-red/89182 "2024-07-02T19:14:48Z")

</div>

Hi I've been working with Node-red for a few months. Now I'd like to start using GITHub as a repository. I have set up as detailed in many tutorials, but I have an issue that when I try to get my local branch to track a…

[Previous page](https://discourse.nodered.org/c/general/7.md?page=97)

[Next page](https://discourse.nodered.org/c/general/7.md?page=99)