# Latest

**URL:** https://discourse.nodered.org/latest.md?page=852

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

**Page:** 853

---

## [Custom node for Mux chip](https://discourse.nodered.org/t/custom-node-for-mux-chip/43220)

<div class="topic-metadata">

**Author:** [@Peter](https://discourse.nodered.org/u/Peter)\
**Replies:** 1\
**Last updated:** [25 March 2021 21:24 UTC](https://discourse.nodered.org/t/custom-node-for-mux-chip/43220 "2021-03-25T21:24:44Z")

</div>

Hi Guys, I am wondering if it is possible to build a custom Node to function similar to the GPIO's for the Mux chip outputs?

---

## [Error executing vcgencmd after node-red upgrade](https://discourse.nodered.org/t/error-executing-vcgencmd-after-node-red-upgrade/40554)

<div class="topic-metadata">

**Author:** [@DannyBoyKN](https://discourse.nodered.org/u/DannyBoyKN)\
**Replies:** 7\
**Last updated:** [25 March 2021 21:08 UTC](https://discourse.nodered.org/t/error-executing-vcgencmd-after-node-red-upgrade/40554 "2021-03-25T21:08:47Z")

</div>

I'm already using node-red on my RPi4 and setup flows to generate a dashboard showing the Pi's memory and cpu load as well as its temperatures. In the past I got problems getting the vcgencmd running in the node-red dock…

---

## [Not all nodes have colour property](https://discourse.nodered.org/t/not-all-nodes-have-colour-property/43206)

<div class="topic-metadata">

**Author:** [@vkuehn](https://discourse.nodered.org/u/vkuehn)\
**Replies:** 5\
**Last updated:** [25 March 2021 19:39 UTC](https://discourse.nodered.org/t/not-all-nodes-have-colour-property/43206 "2021-03-25T19:39:08Z")

</div>

The dashboard button node has colour and background properties. not sure why others doesn't !? e.g. ui\_slider.html has not these properties color: {value: ''}, bgcolor: {value: ''}, is there more than…

---

## [Mixing dashboard and uibuilder](https://discourse.nodered.org/t/mixing-dashboard-and-uibuilder/43148)

<div class="topic-metadata">

**Author:** [@tve](https://discourse.nodered.org/u/tve)\
**Replies:** 4\
**Last updated:** [25 March 2021 17:58 UTC](https://discourse.nodered.org/t/mixing-dashboard-and-uibuilder/43148 "2021-03-25T17:58:20Z")

</div>

I'm working on transitioning some 20 dashboard tabs to uibuilder and I wonder whether someone has figured out a decent way to mix the two, specifically, it would be great if I could convert one tab at a time and somehow …

---

## [How to Add objects in address space?](https://discourse.nodered.org/t/how-to-add-objects-in-address-space/16734)

<div class="topic-metadata">

**Author:** [@Piyush](https://discourse.nodered.org/u/Piyush)\
**Replies:** 10\
**Last updated:** [25 March 2021 17:05 UTC](https://discourse.nodered.org/t/how-to-add-objects-in-address-space/16734 "2021-03-25T17:05:19Z")

</div>

I created an OPC server using iiot contrib nodes. There are predefined objects inside it. How can I create my own objects and add it in the OPC server. I've tried the following. I'm able to create folders and collectio…

---

## [Problems with ui\_value\_trail](https://discourse.nodered.org/t/problems-with-ui-value-trail/42985)

<div class="topic-metadata">

**Author:** [@Manfred53](https://discourse.nodered.org/u/Manfred53)\
**Replies:** 6\
**Last updated:** [25 March 2021 15:58 UTC](https://discourse.nodered.org/t/problems-with-ui-value-trail/42985 "2021-03-25T15:58:26Z")

</div>

Hello, I think that's a question for hotNipi. There are some problems with ui\_value\_trail. I'm currently working on a wireless battery sensor project. To save energy, the sensors only send a value when it has changed. T…

---

## [Node to Subflow Linking](https://discourse.nodered.org/t/node-to-subflow-linking/41502)

<div class="topic-metadata">

**Author:** [@Soloam](https://discourse.nodered.org/u/Soloam)\
**Replies:** 8\
**Last updated:** [25 March 2021 15:39 UTC](https://discourse.nodered.org/t/node-to-subflow-linking/41502 "2021-03-25T15:39:35Z")

</div>

Hello, I've done a node to try to get subflow linking, the idea is to be used inside subflows to give like a subflow to cast messages or to get inputs into subflows from other subflows. The ideia is to be as light as po…

---

## [Rockwell Contrologix string issue to dashboard](https://discourse.nodered.org/t/rockwell-contrologix-string-issue-to-dashboard/43087)

<div class="topic-metadata">

**Author:** [@Industrialogics](https://discourse.nodered.org/u/Industrialogics)\
**Replies:** 15\
**Last updated:** [25 March 2021 14:38 UTC](https://discourse.nodered.org/t/rockwell-contrologix-string-issue-to-dashboard/43087 "2021-03-25T14:38:35Z")

</div>

Get following debug error... but reads string one time to dashboard, then won't repeat read at set intervals.... "Error connecting to PLC: Error: Controller requires IP\_ADDR !!!"

---

## [Msg.payload to number for InfluxDB for Grafana](https://discourse.nodered.org/t/msg-payload-to-number-for-influxdb-for-grafana/43164)

<div class="topic-metadata">

**Author:** [@kelvins](https://discourse.nodered.org/u/kelvins)\
**Replies:** 7\
**Last updated:** [25 March 2021 13:58 UTC](https://discourse.nodered.org/t/msg-payload-to-number-for-influxdb-for-grafana/43164 "2021-03-25T13:58:13Z")

</div>

Hi all, I am struggling to convert the msg.payload to be used as a number when writing to InfluxDB. I currently send data to MQTT and my payload/content is just numbers, example 65 and under the 'change node' I have se…

---

## [Nodered as internetradio](https://discourse.nodered.org/t/nodered-as-internetradio/43134)

<div class="topic-metadata">

**Author:** [@automati](https://discourse.nodered.org/u/automati)\
**Replies:** 8\
**Last updated:** [25 March 2021 13:42 UTC](https://discourse.nodered.org/t/nodered-as-internetradio/43134 "2021-03-25T13:42:38Z")

</div>

Hello everyone, I'm new here and also brand new to the topic of node red. I have a shelly actuator at home which I want to use to turn my radio on and off. Do any of you have any ideas how I can do that? Maybe I can acce…

---

## [Creating a table with a certain number of rows](https://discourse.nodered.org/t/creating-a-table-with-a-certain-number-of-rows/43151)

<div class="topic-metadata">

**Author:** [@oussama5](https://discourse.nodered.org/u/oussama5)\
**Replies:** 5\
**Last updated:** [25 March 2021 13:24 UTC](https://discourse.nodered.org/t/creating-a-table-with-a-certain-number-of-rows/43151 "2021-03-25T13:24:03Z")

</div>

Hello guys, i wish everyone is ok. i have a project that consist me to create a table which it should be fill in with data(rows); The data is extracted from a database node with the help of a function node and an inject…

---

## [Converting/ Rebuilding Array of Objects {different length}](https://discourse.nodered.org/t/converting-rebuilding-array-of-objects-different-length/43190)

<div class="topic-metadata">

**Author:** [@Eintracht00](https://discourse.nodered.org/u/Eintracht00)\
**Replies:** 6\
**Last updated:** [25 March 2021 12:00 UTC](https://discourse.nodered.org/t/converting-rebuilding-array-of-objects-different-length/43190 "2021-03-25T12:00:55Z")

</div>

Hey, I get data from MSSQL with this code where the payload is the all entries of the named "key" This is the SELECT-Code: The payload I get is an array with all entries of named "key" I selected: Now i want to r…

---

## [Interval if state](https://discourse.nodered.org/t/interval-if-state/43149)

<div class="topic-metadata">

**Author:** [@Napster](https://discourse.nodered.org/u/Napster)\
**Replies:** 2\
**Last updated:** [25 March 2021 11:24 UTC](https://discourse.nodered.org/t/interval-if-state/43149 "2021-03-25T11:24:13Z")

</div>

Hi, I need a inject node with a interval every 10 sec, this should only need to work when payload is 0 kind regards

---

## [Help with Javascript on Function Node](https://discourse.nodered.org/t/help-with-javascript-on-function-node/43121)

<div class="topic-metadata">

**Author:** [@Dgillett](https://discourse.nodered.org/u/Dgillett)\
**Replies:** 22\
**Last updated:** [25 March 2021 10:21 UTC](https://discourse.nodered.org/t/help-with-javascript-on-function-node/43121 "2021-03-25T10:21:08Z")

</div>

I am Currently using an MQTT Gateway to receive values from a PLC using modbus. Then sending those values to a raspberry pi, and storing them into a SQLite Database. The Values only send to the Raspberry Pi "On Value Cha…

---

## [Best way to store data during Internet outages (then send)](https://discourse.nodered.org/t/best-way-to-store-data-during-internet-outages-then-send/43159)

<div class="topic-metadata">

**Author:** [@grant1](https://discourse.nodered.org/u/grant1)\
**Replies:** 3\
**Last updated:** [25 March 2021 10:14 UTC](https://discourse.nodered.org/t/best-way-to-store-data-during-internet-outages-then-send/43159 "2021-03-25T10:14:35Z")

</div>

Hello. I am using NR on various devices to record temperature data every 1 minute. Readings are sent to InfluxDB (which hosted on Debian on Amazon EC2) using the Influx out node. System works perfectly. But.... When…

---

## [Send Email Alarm only once](https://discourse.nodered.org/t/send-email-alarm-only-once/43184)

<div class="topic-metadata">

**Author:** [@monokumamon](https://discourse.nodered.org/u/monokumamon)\
**Replies:** 1\
**Last updated:** [25 March 2021 09:53 UTC](https://discourse.nodered.org/t/send-email-alarm-only-once/43184 "2021-03-25T09:53:32Z")

</div>

Hello, im new to Node-RED. I'm using a vibration sensor and I manage to send an email when the alarm triggered. The problem I'm having right now is, I want Node-RED only send the alarm once not multiple times when the al…

---

## [Creating a table with certain number of rows](https://discourse.nodered.org/t/creating-a-table-with-certain-number-of-rows/43182)

<div class="topic-metadata">

**Author:** [@oussama5](https://discourse.nodered.org/u/oussama5)\
**Replies:** 1\
**Last updated:** [25 March 2021 09:46 UTC](https://discourse.nodered.org/t/creating-a-table-with-certain-number-of-rows/43182 "2021-03-25T09:46:42Z")

</div>

Hello guys, i wish everyone is ok. i have a project that consist me to create a table which it should be fill in with data(rows); The data is extracted from a database node with the help of a function node and an inject…

---

## [Doorbell alarm on my phone](https://discourse.nodered.org/t/doorbell-alarm-on-my-phone/42623)

<div class="topic-metadata">

**Author:** [@warnert](https://discourse.nodered.org/u/warnert)\
**Replies:** 8\
**Last updated:** [25 March 2021 09:44 UTC](https://discourse.nodered.org/t/doorbell-alarm-on-my-phone/42623 "2021-03-25T09:44:10Z")

</div>

Is it possible to use Node-Red to get an alarm on my phone when somebody pushes the knob of my doorbell? I sometimes do not hear that so I thought maybe I can add a relay to the bell, connect that to an input of the Rasp…

---

## [\[behavior\] Activating a function from the previous function node](https://discourse.nodered.org/t/behavior-activating-a-function-from-the-previous-function-node/43168)

<div class="topic-metadata">

**Author:** [@Nxito](https://discourse.nodered.org/u/Nxito)\
**Replies:** 7\
**Last updated:** [25 March 2021 09:31 UTC](https://discourse.nodered.org/t/behavior-activating-a-function-from-the-previous-function-node/43168 "2021-03-25T09:31:47Z")

</div>

I was testing something, and i see this behavior with node functions and the node-red. I have created two function nodes: -the first one creates a function with node.send () -the second calls this function -I get an …

---

## [CSV data to mysql using node red](https://discourse.nodered.org/t/csv-data-to-mysql-using-node-red/43179)

<div class="topic-metadata">

**Author:** [@Kins](https://discourse.nodered.org/u/Kins)\
**Replies:** 6\
**Last updated:** [25 March 2021 09:30 UTC](https://discourse.nodered.org/t/csv-data-to-mysql-using-node-red/43179 "2021-03-25T09:30:39Z")

</div>

How do I insert csv data from an online file to mysql using node red?

---

## [Theme dashboard](https://discourse.nodered.org/t/theme-dashboard/43172)

<div class="topic-metadata">

**Author:** [@Lucabo69](https://discourse.nodered.org/u/Lucabo69)\
**Replies:** 3\
**Last updated:** [25 March 2021 09:05 UTC](https://discourse.nodered.org/t/theme-dashboard/43172 "2021-03-25T09:05:29Z")

</div>

Hello, I would like to know how to modify the theme of my dashboard directly on the dashboard without going through the classic change of theme with Node RED

---

## [Exec node creating two processes](https://discourse.nodered.org/t/exec-node-creating-two-processes/43155)

<div class="topic-metadata">

**Author:** [@cocothedoges](https://discourse.nodered.org/u/cocothedoges)\
**Replies:** 2\
**Last updated:** [25 March 2021 08:55 UTC](https://discourse.nodered.org/t/exec-node-creating-two-processes/43155 "2021-03-25T08:55:30Z")

</div>

Hi guys, Im trying to place a switch to on/off my rPI =\> twitch.tv stream. The flow: \[{"id":"bcea7856.3d9df8","type":"tab","label":"Flow 1","disabled":false,"info":""},{"id":"32b7b5b1.ee028a","type":"toggle","z":"bcea7…

---

## [IP camera: stream and record a fragment](https://discourse.nodered.org/t/ip-camera-stream-and-record-a-fragment/15876)

<div class="topic-metadata">

**Author:** [@Nxito](https://discourse.nodered.org/u/Nxito)\
**Replies:** 89\
**Last updated:** [25 March 2021 08:46 UTC](https://discourse.nodered.org/t/ip-camera-stream-and-record-a-fragment/15876 "2021-03-25T08:46:47Z")

</div>

Hello, before anything, Im using windows 7. I try to use an ip camera to stream live, and also i want be able to choose when to start recording and when to stop manually or by a node-red command. I've tried things in n…

---

## [Query mean value from influxDB into a gauge](https://discourse.nodered.org/t/query-mean-value-from-influxdb-into-a-gauge/43078)

<div class="topic-metadata">

**Author:** [@sahsha](https://discourse.nodered.org/u/sahsha)\
**Replies:** 16\
**Last updated:** [25 March 2021 07:53 UTC](https://discourse.nodered.org/t/query-mean-value-from-influxdb-into-a-gauge/43078 "2021-03-25T07:53:14Z")

</div>

Hello! being a mechanical engineer & new to node red, I've managed to get data from an OMRON PLC using FINS read node. And using influxdb out node I've also logged the data. Now I want to show mean value from logged valu…

---

## [How to Rearrange the Nodes in Left Panel of Node Red](https://discourse.nodered.org/t/how-to-rearrange-the-nodes-in-left-panel-of-node-red/43160)

<div class="topic-metadata">

**Author:** [@dhpatel177](https://discourse.nodered.org/u/dhpatel177)\
**Replies:** 1\
**Last updated:** [25 March 2021 05:23 UTC](https://discourse.nodered.org/t/how-to-rearrange-the-nodes-in-left-panel-of-node-red/43160 "2021-03-25T05:23:24Z")

</div>

Hello, I am having nodes with type subflow in my Node Red. I want to rearrange my nodes in left panel like the nodes having type subflow should come first and then after core nodes should appear. How can i do this? Th…

---

## [Node-red projects + uibuilder -\> NodeRED UI freeze for some time](https://discourse.nodered.org/t/node-red-projects-uibuilder-nodered-ui-freeze-for-some-time/43139)

<div class="topic-metadata">

**Author:** [@eastling](https://discourse.nodered.org/u/eastling)\
**Replies:** 2\
**Last updated:** [25 March 2021 05:22 UTC](https://discourse.nodered.org/t/node-red-projects-uibuilder-nodered-ui-freeze-for-some-time/43139 "2021-03-25T05:22:06Z")

</div>

Hi, I wanted to use Nodered projects feature to get version control for the nodered flows and frontend (using uibuilder so all the frontend code also end up in the project folder). However what i noticed after running …

---

## [Run uibuilder standalone?](https://discourse.nodered.org/t/run-uibuilder-standalone/43063)

<div class="topic-metadata">

**Author:** [@eastling](https://discourse.nodered.org/u/eastling)\
**Replies:** 4\
**Last updated:** [24 March 2021 22:39 UTC](https://discourse.nodered.org/t/run-uibuilder-standalone/43063 "2021-03-24T22:39:31Z")

</div>

First of all - thank you everyone for your impressive work on uibuilder and node-red! I have a question - is it possible to run uibuilder and node-red separately? Reason I ask is that I am currently using a vue "templa…

---

## [Custom Node Missing HTML based on Core Http Request node](https://discourse.nodered.org/t/custom-node-missing-html-based-on-core-http-request-node/43144)

<div class="topic-metadata">

**Author:** [@dmitri678](https://discourse.nodered.org/u/dmitri678)\
**Replies:** 3\
**Last updated:** [24 March 2021 21:28 UTC](https://discourse.nodered.org/t/custom-node-missing-html-based-on-core-http-request-node/43144 "2021-03-24T21:28:24Z")

</div>

Hello, I created a custom node based on the core HTTP Request Node. Currently only trying to replicate the core before adding additional functionality. I have copied the code for the request node into mine but some of t…

---

## [Ui\_template css help](https://discourse.nodered.org/t/ui-template-css-help/43131)

<div class="topic-metadata">

**Author:** [@achrefnajjar](https://discourse.nodered.org/u/achrefnajjar)\
**Replies:** 5\
**Last updated:** [24 March 2021 17:48 UTC](https://discourse.nodered.org/t/ui-template-css-help/43131 "2021-03-24T17:48:28Z")

</div>

is there any documentation on how to write a css code into ui\_template

---

## [GPIO state crazy?](https://discourse.nodered.org/t/gpio-state-crazy/43122)

<div class="topic-metadata">

**Author:** [@Herbert](https://discourse.nodered.org/u/Herbert)\
**Replies:** 1\
**Last updated:** [24 March 2021 15:12 UTC](https://discourse.nodered.org/t/gpio-state-crazy/43122 "2021-03-24T15:12:53Z")

</div>

Hello friends, I installed at my Rasperry 3B+ a 8 chanel relay card. Standard relay, not any SSR. on the Relay card is a LED for each relay - state LED. I think you know that. If the Pi is off, the relay is off. If I…

[Previous page](https://discourse.nodered.org/latest.md?page=851)

[Next page](https://discourse.nodered.org/latest.md?page=853)