# Latest

**URL:** https://discourse.nodered.org/latest.md?page=603

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

**Page:** 604

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## [Something wrong with buffer-array node?](https://discourse.nodered.org/t/something-wrong-with-buffer-array-node/58938)

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**Author:** [@Marcos](https://discourse.nodered.org/u/Marcos)\
**Replies:** 2\
**Last updated:** [22 March 2022 08:41 UTC](https://discourse.nodered.org/t/something-wrong-with-buffer-array-node/58938 "2022-03-22T08:41:59Z")

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Dear All Thanks for your attention. I’ve spent all this day trying to understand what is wrong with the buffer-array node. It is supposed that this node, receiving any payload in input, will output an array payload of a…

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## [nodesExcludes in portable node-red](https://discourse.nodered.org/t/nodesexcludes-in-portable-node-red/59967)

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**Author:** [@mehmetul](https://discourse.nodered.org/u/mehmetul)\
**Replies:** 5\
**Last updated:** [22 March 2022 08:20 UTC](https://discourse.nodered.org/t/nodesexcludes-in-portable-node-red/59967 "2022-03-22T08:20:08Z")

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Hello, As I read there is a function that named nodesExcludes in settings.js or passing into as parameter in 3rd party portable edition of the node-red. So I would like to disable all basic nodes like as common,functio…

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## [How to add payload to a posted MQTT topic?](https://discourse.nodered.org/t/how-to-add-payload-to-a-posted-mqtt-topic/60143)

<div class="topic-metadata">

**Author:** [@muharremsari](https://discourse.nodered.org/u/muharremsari)\
**Replies:** 12\
**Last updated:** [22 March 2022 07:24 UTC](https://discourse.nodered.org/t/how-to-add-payload-to-a-posted-mqtt-topic/60143 "2022-03-22T07:24:53Z")

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I have a float OPCDA signal from PLC I want add payload to a posted MQTT topic Regards

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## [Asking again about options with this display](https://discourse.nodered.org/t/asking-again-about-options-with-this-display/57226)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 14\
**Last updated:** [22 March 2022 01:19 UTC](https://discourse.nodered.org/t/asking-again-about-options-with-this-display/57226 "2022-03-22T01:19:39Z")

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I have one of these displays: It has 3 kinds of comms options. I2C SPI and another one... (What ever) I sort of have it working, but it isn't perfect. :frowning: After more digging I have been told of this: ht…

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## [Renaming the configuration node type (config) in a custom node. Best practice?](https://discourse.nodered.org/t/renaming-the-configuration-node-type-config-in-a-custom-node-best-practice/60041)

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**Author:** [@hklages](https://discourse.nodered.org/u/hklages)\
**Replies:** 6\
**Last updated:** [21 March 2022 21:33 UTC](https://discourse.nodered.org/t/renaming-the-configuration-node-type-config-in-a-custom-node-best-practice/60041 "2022-03-21T21:33:25Z")

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In my package node-red-contrib-sonos-plus the config node type is named "sonos-config". That interferes with another package and I would like to change the name to "sonosplus-config". That means I have to rename it in …

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## [Where to find httpStatic: '/home/nol/node-red-static/' on my computer?](https://discourse.nodered.org/t/where-to-find-httpstatic-home-nol-node-red-static-on-my-computer/60153)

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**Author:** [@oliver](https://discourse.nodered.org/u/oliver)\
**Replies:** 22\
**Last updated:** [21 March 2022 21:29 UTC](https://discourse.nodered.org/t/where-to-find-httpstatic-home-nol-node-red-static-on-my-computer/60153 "2022-03-21T21:29:12Z")

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Hi I want to use custom icons on the node-red worldmap. In another post Is there is anyway to use Custom Icon in Worldmap node? - #5 by Zak I read you can put them in a node-red-static map. When I uncomment httpStatic…

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## [Changing the content of a template](https://discourse.nodered.org/t/changing-the-content-of-a-template/60167)

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**Author:** [@kaiezer1980](https://discourse.nodered.org/u/kaiezer1980)\
**Replies:** 2\
**Last updated:** [21 March 2022 21:18 UTC](https://discourse.nodered.org/t/changing-the-content-of-a-template/60167 "2022-03-21T21:18:14Z")

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Hi everyone I created a small dashboard I inserted an image on a group using the ned dashboard template \<img src="/fan r.png" align="middle" style="width: 485px; height:auto; …

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## [Control light from Google Home with Node RED](https://discourse.nodered.org/t/control-light-from-google-home-with-node-red/60053)

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**Author:** [@DeWoAlliSeged7](https://discourse.nodered.org/u/DeWoAlliSeged7)\
**Replies:** 11\
**Last updated:** [21 March 2022 20:52 UTC](https://discourse.nodered.org/t/control-light-from-google-home-with-node-red/60053 "2022-03-21T20:52:49Z")

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Hello I am new to the party... My question is : Can i control a Light with Node RED which is connected in the Google Home app ? I found much stuff about controlling lights in Google Home which are connected in the Nod…

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## [A free Low Code Programming online meeting - 14 March 19:00-20:30 UTC](https://discourse.nodered.org/t/a-free-low-code-programming-online-meeting-14-march-1930-utc/60160)

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**Author:** [@TotallyInformation](https://discourse.nodered.org/u/TotallyInformation)\
**Replies:** 4\
**Last updated:** [21 March 2022 20:39 UTC](https://discourse.nodered.org/t/a-free-low-code-programming-online-meeting-14-march-1930-utc/60160 "2022-03-21T20:39:38Z")

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Spotted this in the BCS forum: A free Low Code Programming online meeting - 14 March March 14th, 19:00 – 20:30, (GMT+00:00) London Low-Code and No-Code programming have emerged as viable approaches. This meeting illust…

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## [How to enumerate nodes in config](https://discourse.nodered.org/t/how-to-enumerate-nodes-in-config/60170)

<div class="topic-metadata">

**Author:** [@cloud-rocket](https://discourse.nodered.org/u/cloud-rocket)\
**Replies:** 2\
**Last updated:** [21 March 2022 19:14 UTC](https://discourse.nodered.org/t/how-to-enumerate-nodes-in-config/60170 "2022-03-21T19:14:54Z")

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I am trying to enumerate config nodes of a certain type within node configuration HTML. The following call works for UI nodes: RED.nodes.filterNodes({type:'my-type'}) But it doesn't work for any config nodes (the retu…

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## [Temperature controls cooling control and a separate control for heating](https://discourse.nodered.org/t/temperature-controls-cooling-control-and-a-separate-control-for-heating/59431)

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**Author:** [@9toejack](https://discourse.nodered.org/u/9toejack)\
**Replies:** 35\
**Last updated:** [21 March 2022 18:29 UTC](https://discourse.nodered.org/t/temperature-controls-cooling-control-and-a-separate-control-for-heating/59431 "2022-03-21T18:29:46Z")

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ok so I am still wet behind the ears on node red but I have help and i have learned a lot. However im confused on what to do for chilling my fermenters in my brewery. i have been playing with some different ways people…

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## [How to change background image of a div based on a switch state?](https://discourse.nodered.org/t/how-to-change-background-image-of-a-div-based-on-a-switch-state/60124)

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**Author:** [@ayub\_anwar](https://discourse.nodered.org/u/ayub_anwar)\
**Replies:** 4\
**Last updated:** [21 March 2022 15:53 UTC](https://discourse.nodered.org/t/how-to-change-background-image-of-a-div-based-on-a-switch-state/60124 "2022-03-21T15:53:33Z")

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Hello every one, is there any way to change background image of a div element based on a variable (like a switch state)? I want to use this technique to show states of devices on a Scada project, so i really appreciate…

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## [Saving a CSV file on another Computer using Node Red](https://discourse.nodered.org/t/saving-a-csv-file-on-another-computer-using-node-red/60157)

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**Author:** [@shane.gillette](https://discourse.nodered.org/u/shane.gillette)\
**Replies:** 5\
**Last updated:** [21 March 2022 15:53 UTC](https://discourse.nodered.org/t/saving-a-csv-file-on-another-computer-using-node-red/60157 "2022-03-21T15:53:07Z")

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Hello, I want to preface this by saying I am a beginner on anything programming related or even using Node Red, so I am sorry in advance. I have a project that I am working on where I am measuring data from sensors in…

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## [Websocket & cookie](https://discourse.nodered.org/t/websocket-cookie/5422)

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**Author:** [@indyspike](https://discourse.nodered.org/u/indyspike)\
**Replies:** 5\
**Last updated:** [21 March 2022 14:51 UTC](https://discourse.nodered.org/t/websocket-cookie/5422 "2022-03-21T14:51:12Z")

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I'm trying to connect to a websocket that requires a session cookie in the header for authentication. Is this on the roadmap for the core websocket, worthy of a feature request in github, or a custom node I have to write…

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## [How to specify NBIRTH content for a Sparkplug node](https://discourse.nodered.org/t/how-to-specify-nbirth-content-for-a-sparkplug-node/59986)

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**Author:** [@ciderglider](https://discourse.nodered.org/u/ciderglider)\
**Replies:** 13\
**Last updated:** [21 March 2022 14:35 UTC](https://discourse.nodered.org/t/how-to-specify-nbirth-content-for-a-sparkplug-node/59986 "2022-03-21T14:35:22Z")

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I have installed the node-red-contrib-sparkplug palette, and have created a sparkplug node. I have a separate Sparkplug B client that subscribes to the node I have created in node-red. When the node connects to the MQT…

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## [Formula 1 telemetry](https://discourse.nodered.org/t/formula-1-telemetry/60141)

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**Author:** [@Anth](https://discourse.nodered.org/u/Anth)\
**Replies:** 2\
**Last updated:** [21 March 2022 13:41 UTC](https://discourse.nodered.org/t/formula-1-telemetry/60141 "2022-03-21T13:41:38Z")

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Hi all, Im fairly new to Node red but finding my way. I have a home theatre with RGBW lighting and would love to be able to change the colour according to the track status of formula 1 practice, qualifying and races. …

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## [NODE RED ERROR : The server wont start so I cant view the flow, I suspect a change I performed last night](https://discourse.nodered.org/t/node-red-error-the-server-wont-start-so-i-cant-view-the-flow-i-suspect-a-change-i-performed-last-night/60021)

<div class="topic-metadata">

**Author:** [@Evan7](https://discourse.nodered.org/u/Evan7)\
**Replies:** 50\
**Last updated:** [21 March 2022 13:31 UTC](https://discourse.nodered.org/t/node-red-error-the-server-wont-start-so-i-cant-view-the-flow-i-suspect-a-change-i-performed-last-night/60021 "2022-03-21T13:31:19Z")

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I got this error when I started up node-red today. Last night I added 2 nodes for the UI table BUT the 3rd node which I attempted to add failed to install. Anyway, I worked with what was installed and set up my dashbo…

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## [Optional admin authentication](https://discourse.nodered.org/t/optional-admin-authentication/60144)

<div class="topic-metadata">

**Author:** [@DJDev](https://discourse.nodered.org/u/DJDev)\
**Replies:** 2\
**Last updated:** [21 March 2022 13:09 UTC](https://discourse.nodered.org/t/optional-admin-authentication/60144 "2022-03-21T13:09:08Z")

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Hi, I have a question regarding the adminauth option in the settingsfile.js. I need multiple nodered instances running. The settings.js is aside from some configurable settings fairly similar for each environment. But s…

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## [Node-red-contrib-boolean-logic](https://discourse.nodered.org/t/node-red-contrib-boolean-logic/59931)

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**Author:** [@\_mirjka](https://discourse.nodered.org/u/_mirjka)\
**Replies:** 6\
**Last updated:** [21 March 2022 09:28 UTC](https://discourse.nodered.org/t/node-red-contrib-boolean-logic/59931 "2022-03-21T09:28:50Z")

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Hi, after a lot googleing and searching in this forum (without success), I decided to open a new topic. I have no experience in programming :wink: Acutally I can´t get the node-red-contrib-boolean-logic "AND" running. …

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## [How to do a timer switch?](https://discourse.nodered.org/t/how-to-do-a-timer-switch/60128)

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**Author:** [@Leopoll](https://discourse.nodered.org/u/Leopoll)\
**Replies:** 12\
**Last updated:** [21 March 2022 08:29 UTC](https://discourse.nodered.org/t/how-to-do-a-timer-switch/60128 "2022-03-21T08:29:13Z")

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please help me, how to make this circuit? If timestamp2 is activated less than 30s aftertime stamp1, then output1; otherwise output 2.

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## [Nodejs and npm upgrade issue in the opcua package](https://discourse.nodered.org/t/nodejs-and-npm-upgrade-issue-in-the-opcua-package/60127)

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**Author:** [@muharremsari](https://discourse.nodered.org/u/muharremsari)\
**Replies:** 6\
**Last updated:** [21 March 2022 08:18 UTC](https://discourse.nodered.org/t/nodejs-and-npm-upgrade-issue-in-the-opcua-package/60127 "2022-03-21T08:18:48Z")

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Previously i was sending over someone data with the OPCUA-IIoT-Flex-Server contained in the node-red-contrib-lativ content package I couldn't install this package after update I get errors shown below incompatible w…

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## [How to hide or change the socketId after localhost:1880/ui in the URL](https://discourse.nodered.org/t/how-to-hide-or-change-the-socketid-after-localhost-1880-ui-in-the-url/60131)

<div class="topic-metadata">

**Author:** [@quemf](https://discourse.nodered.org/u/quemf)\
**Replies:** 1\
**Last updated:** [21 March 2022 08:09 UTC](https://discourse.nodered.org/t/how-to-hide-or-change-the-socketid-after-localhost-1880-ui-in-the-url/60131 "2022-03-21T08:09:30Z")

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Hi everyone, I come from this topic: How to detect which user is connected to Node-RED And now, I am trying to hide the socketid that follows the URL localhost:1880/ui. Does anyone know how to do it? Thank you in adv…

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## [Sending Bytes to Arduino via Serial Node](https://discourse.nodered.org/t/sending-bytes-to-arduino-via-serial-node/60113)

<div class="topic-metadata">

**Author:** [@rayank97](https://discourse.nodered.org/u/rayank97)\
**Replies:** 2\
**Last updated:** [21 March 2022 08:04 UTC](https://discourse.nodered.org/t/sending-bytes-to-arduino-via-serial-node/60113 "2022-03-21T08:04:21Z")

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Hello everyone, I have a project where I need 6 function blocks, each performing the functions of a button (0/1), to send their value in binary via the Serial node. As of now, I'm testing this with just 1 such function …

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## [Convert Object array of SINT's to String](https://discourse.nodered.org/t/convert-object-array-of-sints-to-string/60120)

<div class="topic-metadata">

**Author:** [@GoEasyOnMe](https://discourse.nodered.org/u/GoEasyOnMe)\
**Replies:** 4\
**Last updated:** [21 March 2022 04:31 UTC](https://discourse.nodered.org/t/convert-object-array-of-sints-to-string/60120 "2022-03-21T04:31:06Z")

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Hi all, Looking for some help, Using the Node Red Ethernet IP node I have some data coming in the form of an object of SINTs. This is variable length. I want to use a function node to convert this into a String. I've tr…

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## [Display Node-Red dashboard/UI on public webpage](https://discourse.nodered.org/t/display-node-red-dashboard-ui-on-public-webpage/60117)

<div class="topic-metadata">

**Author:** [@astrojav](https://discourse.nodered.org/u/astrojav)\
**Replies:** 2\
**Last updated:** [20 March 2022 22:10 UTC](https://discourse.nodered.org/t/display-node-red-dashboard-ui-on-public-webpage/60117 "2022-03-20T22:10:26Z")

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Hi folks, I've created an awesome dashboard using the node-red dashboard interface, below is a screenshot. I can now access it within my local network at 192.168.0.27:1880 Is there a way to publish it to a webpage at a…

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## [MQTT data to a mySQL to display data on public website](https://discourse.nodered.org/t/mqtt-data-to-a-mysql-to-display-data-on-public-website/60082)

<div class="topic-metadata">

**Author:** [@astrojav](https://discourse.nodered.org/u/astrojav)\
**Replies:** 13\
**Last updated:** [20 March 2022 21:03 UTC](https://discourse.nodered.org/t/mqtt-data-to-a-mysql-to-display-data-on-public-website/60082 "2022-03-20T21:03:18Z")

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Hi folks, Firstly I'm not a programmer but can follow instructions quite well. I have an ESP32 sending sensors data to Node-red on a Raspberry Pi, acting as an MQTT broker. The MQTT broker subscribes to a single topic …

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## [Payload between range for 5 minutes](https://discourse.nodered.org/t/payload-between-range-for-5-minutes/60102)

<div class="topic-metadata">

**Author:** [@Amishman](https://discourse.nodered.org/u/Amishman)\
**Replies:** 4\
**Last updated:** [20 March 2022 17:27 UTC](https://discourse.nodered.org/t/payload-between-range-for-5-minutes/60102 "2022-03-20T17:27:36Z")

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I have an energy monitoring plug on my dumb washer. When my washer throws an error, the watts stay between 22 and 27. I would like to know how to see if the payload stays between 22 - 27 for 5 minutes? I have no idea whe…

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## [Pallete Update generates error (Raspberrymatic on RP4)](https://discourse.nodered.org/t/pallete-update-generates-error-raspberrymatic-on-rp4/60105)

<div class="topic-metadata">

**Author:** [@renenl2](https://discourse.nodered.org/u/renenl2)\
**Replies:** 14\
**Last updated:** [20 March 2022 17:19 UTC](https://discourse.nodered.org/t/pallete-update-generates-error-raspberrymatic-on-rp4/60105 "2022-03-20T17:19:32Z")

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Hi, I'm a bit new to this world so sorry if this is well known and simple. I'm using Raspberrymatic on an RP4. The homeautomisation is done in node-red. At first everything worked well now on attempt to install further…

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## [MQTT user definition](https://discourse.nodered.org/t/mqtt-user-definition/60111)

<div class="topic-metadata">

**Author:** [@Rodrixx05](https://discourse.nodered.org/u/Rodrixx05)\
**Replies:** 1\
**Last updated:** [20 March 2022 17:00 UTC](https://discourse.nodered.org/t/mqtt-user-definition/60111 "2022-03-20T17:00:40Z")

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Hi everyone, I want to send data from Modbus devices to the IoT platform ThingsBoard via MQTT using the MQTT out node. The MQTT API from the platform defines the MQTT user as the device token. So the data gathered for e…

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## [Combining 2 http requests into one flow](https://discourse.nodered.org/t/combining-2-http-requests-into-one-flow/60107)

<div class="topic-metadata">

**Author:** [@milner236](https://discourse.nodered.org/u/milner236)\
**Replies:** 5\
**Last updated:** [20 March 2022 14:51 UTC](https://discourse.nodered.org/t/combining-2-http-requests-into-one-flow/60107 "2022-03-20T14:51:20Z")

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Hello everyone. There is an API process that involves 2 flows: HTTP request with basic authentication (username and pw) that generates an API token. Taking that API token and using it in another HTTP request with bear…

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