# Latest

**URL:** https://discourse.nodered.org/latest.md?page=332

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

**Page:** 333

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## [How can I show the chart from my data?](https://discourse.nodered.org/t/how-can-i-show-the-chart-from-my-data/79294)

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**Author:** [@mszeta](https://discourse.nodered.org/u/mszeta)\
**Replies:** 12\
**Last updated:** [19 June 2023 08:03 UTC](https://discourse.nodered.org/t/how-can-i-show-the-chart-from-my-data/79294 "2023-06-19T08:03:25Z")

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Hello, Everyone. I'm happy to know this amazing forum. I'm stuck in showing node-red dashboard chart from my mysql database; Database changed mysql\> show tables; +------------------------+ | Tables\_in\_water\_sensor …

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## [Problem with text input mode email address](https://discourse.nodered.org/t/problem-with-text-input-mode-email-address/79295)

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**Author:** [@Loveflowersx](https://discourse.nodered.org/u/Loveflowersx)\
**Replies:** 4\
**Last updated:** [19 June 2023 07:16 UTC](https://discourse.nodered.org/t/problem-with-text-input-mode-email-address/79295 "2023-06-19T07:16:13Z")

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Hello everyone, I want to put several text input but in email address mode. How can I save the variable in a function node with flow.set and flow.get? Function 1 var email1 = msg.payload; flow.set('email1',msg.p…

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## [Ffmpeg node - Args with Array](https://discourse.nodered.org/t/ffmpeg-node-args-with-array/79293)

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**Author:** [@allacmc](https://discourse.nodered.org/u/allacmc)\
**Replies:** 1\
**Last updated:** [19 June 2023 02:32 UTC](https://discourse.nodered.org/t/ffmpeg-node-args-with-array/79293 "2023-06-19T02:32:08Z")

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Open a topic to ask a simple question about the ffmpeg node by dear @kevinGodell . I need to pass these parameters through a URL because I'm going to send this data via a global variable. Does this node allow this chan…

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## [RTSP CAMS with Dasboard NODE-RED](https://discourse.nodered.org/t/rtsp-cams-with-dasboard-node-red/79278)

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**Author:** [@allacmc](https://discourse.nodered.org/u/allacmc)\
**Replies:** 8\
**Last updated:** [19 June 2023 01:31 UTC](https://discourse.nodered.org/t/rtsp-cams-with-dasboard-node-red/79278 "2023-06-19T01:31:53Z")

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I decided to open a new topic to ask for help with a project I need. I need to place CCTV security cameras using the RSTP protocol on the NODE-RED dashboard. I read quite a topic that has here in the forum. But after g…

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## [Create input to node](https://discourse.nodered.org/t/create-input-to-node/79194)

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**Author:** [@azxo1](https://discourse.nodered.org/u/azxo1)\
**Replies:** 10\
**Last updated:** [19 June 2023 00:25 UTC](https://discourse.nodered.org/t/create-input-to-node/79194 "2023-06-19T00:25:34Z")

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Hello everyone! Could someone help me? The attached js code works on the dashboard for clicking, but I want to start it with "start"-"stop" in the payload. I already tried, but it doesn't work. I have already given it t…

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## [How to make the worlmap marker popup display persistently](https://discourse.nodered.org/t/how-to-make-the-worlmap-marker-popup-display-persistently/79287)

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**Author:** [@ThibautRuy](https://discourse.nodered.org/u/ThibautRuy)\
**Replies:** 1\
**Last updated:** [18 June 2023 22:48 UTC](https://discourse.nodered.org/t/how-to-make-the-worlmap-marker-popup-display-persistently/79287 "2023-06-18T22:48:30Z")

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I would like to keep my marker popup open once clicked and closed when I click somewhere else again. How can I do that? At the moment, the popup closes by itself after a few seconds.

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## [Using msg.ui\_control to set Chart node attributes](https://discourse.nodered.org/t/using-msg-ui-control-to-set-chart-node-attributes/78956)

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**Author:** [@john56](https://discourse.nodered.org/u/john56)\
**Replies:** 10\
**Last updated:** [18 June 2023 20:01 UTC](https://discourse.nodered.org/t/using-msg-ui-control-to-set-chart-node-attributes/78956 "2023-06-18T20:01:08Z")

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I've successfully used the msg.ui\_control xformat property to set the formatting of the time displayed on the x-axis. I would also like to change some other properties of the chart via the "options" property. The example…

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## [HTTP get format for UK Met Office API](https://discourse.nodered.org/t/http-get-format-for-uk-met-office-api/79255)

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**Author:** [@jbudd](https://discourse.nodered.org/u/jbudd)\
**Replies:** 8\
**Last updated:** [18 June 2023 19:25 UTC](https://discourse.nodered.org/t/http-get-format-for-uk-met-office-api/79255 "2023-06-18T19:25:42Z")

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Can someone advise me how to structure msg to access the UK Met Office DataPoint API? The base URL is https://api-metoffice.apiconnect.ibmcloud.com/v0/forecasts/point/hourly' Required parameters are (I think) 'x-ibm-cl…

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## [How to store fields of arrays into InfluxDB using batch node? What formating function should I need?](https://discourse.nodered.org/t/how-to-store-fields-of-arrays-into-influxdb-using-batch-node-what-formating-function-should-i-need/79011)

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**Author:** [@mkdthanga](https://discourse.nodered.org/u/mkdthanga)\
**Replies:** 13\
**Last updated:** [18 June 2023 16:12 UTC](https://discourse.nodered.org/t/how-to-store-fields-of-arrays-into-influxdb-using-batch-node-what-formating-function-should-i-need/79011 "2023-06-18T16:12:05Z")

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I have the followiing payload with fields of arrays: {"timestamp":1686127509414, "topic":"NodeID;ns=3;s=\\"V20Reg\\".\\"Pos\\"", "payload":\[{"measurement":"V20RegPos", "fields":\[ {"rcpNbr":0,"stVisu":0,"batchNbr":0,"key":0,…

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## [Tablets - Constant refresh and some intermittent lost connection](https://discourse.nodered.org/t/tablets-constant-refresh-and-some-intermittent-lost-connection/79262)

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**Author:** [@Soiski](https://discourse.nodered.org/u/Soiski)\
**Replies:** 4\
**Last updated:** [18 June 2023 15:04 UTC](https://discourse.nodered.org/t/tablets-constant-refresh-and-some-intermittent-lost-connection/79262 "2023-06-18T15:04:07Z")

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Bear with me before telling me to read the other posts.... As I have grown my dashboards (16 now) through out the years to have more extensive and gathering really a lot of data I have noticed that even a most simple da…

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## [A simple question about how to call "Select from a list of options" in a js file](https://discourse.nodered.org/t/a-simple-question-about-how-to-call-select-from-a-list-of-options-in-a-js-file/79281)

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**Author:** [@Angin](https://discourse.nodered.org/u/Angin)\
**Replies:** 0\
**Last updated:** [18 June 2023 13:46 UTC](https://discourse.nodered.org/t/a-simple-question-about-how-to-call-select-from-a-list-of-options-in-a-js-file/79281 "2023-06-18T13:46:03Z")

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How to call the select from a list of options in a js file? This is the HTML file: \<script type="text/javascript"\> RED.nodes.registerType('testnode', { category: 'output', color: '#006738', …

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## [Node-RED expert required urgently for three-week project](https://discourse.nodered.org/t/node-red-expert-required-urgently-for-three-week-project/79244)

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**Author:** [@re1928](https://discourse.nodered.org/u/re1928)\
**Replies:** 10\
**Last updated:** [18 June 2023 13:18 UTC](https://discourse.nodered.org/t/node-red-expert-required-urgently-for-three-week-project/79244 "2023-06-18T13:18:55Z")

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We require a Node-RED expert to begin work immediately for a period of three weeks. The project is 70% complete, but we need assistance in closing it out to a tight deadline and to a high standard. Experience with Modbu…

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## [How to listen for windows events?](https://discourse.nodered.org/t/how-to-listen-for-windows-events/79274)

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**Author:** [@LoganAC34](https://discourse.nodered.org/u/LoganAC34)\
**Replies:** 8\
**Last updated:** [18 June 2023 11:02 UTC](https://discourse.nodered.org/t/how-to-listen-for-windows-events/79274 "2023-06-18T11:02:21Z")

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Hi! I'm new to Node-RED and transitioning from EventGhost. I'm trying to rebuild some scripts I had in EventGhost in Node-RED, but I can't figure out a way to listen for windows events. I searched the forum, but couldn't…

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## [Singleton Node concept](https://discourse.nodered.org/t/singleton-node-concept/79270)

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**Author:** [@gregorius](https://discourse.nodered.org/u/gregorius)\
**Replies:** 5\
**Last updated:** [18 June 2023 02:14 UTC](https://discourse.nodered.org/t/singleton-node-concept/79270 "2023-06-18T02:14:28Z")

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Hi There! Quick question concerning the singleton pattern - is there a best-practice for having singleton nodes? I.e. nodes that can only be included once in a project and/or flow? I have no specific use-case, just a t…

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## [How to store adc value and add the next value to it every second to get a 1 minute total for calculation](https://discourse.nodered.org/t/how-to-store-adc-value-and-add-the-next-value-to-it-every-second-to-get-a-1-minute-total-for-calculation/79265)

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**Author:** [@rmystique](https://discourse.nodered.org/u/rmystique)\
**Replies:** 2\
**Last updated:** [17 June 2023 18:12 UTC](https://discourse.nodered.org/t/how-to-store-adc-value-and-add-the-next-value-to-it-every-second-to-get-a-1-minute-total-for-calculation/79265 "2023-06-17T18:12:02Z")

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Here is what I have now \[ { "id": "3ec696660ec8b9b4", "type": "ncd-ads1115", "z": "f672d0ac69fd5b97", "name": "ADC", "connection": "f4775f0f8553a862", "addr": "72", …

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## [Export Flow to a Website](https://discourse.nodered.org/t/export-flow-to-a-website/79269)

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**Author:** [@bill210kouk](https://discourse.nodered.org/u/bill210kouk)\
**Replies:** 3\
**Last updated:** [17 June 2023 10:53 UTC](https://discourse.nodered.org/t/export-flow-to-a-website/79269 "2023-06-17T10:53:08Z")

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Good Morning Everyone. Hope you're alright! I would like to ask some development advice. I ve build my dashboard working properly and with a nice fucntionality. So now i would like to export it . Ive made the export su…

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## [File writing blocks NR?](https://discourse.nodered.org/t/file-writing-blocks-nr/79021)

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**Author:** [@SandeepA](https://discourse.nodered.org/u/SandeepA)\
**Replies:** 28\
**Last updated:** [17 June 2023 10:33 UTC](https://discourse.nodered.org/t/file-writing-blocks-nr/79021 "2023-06-17T10:33:15Z")

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Hi , While i am aware NR uses Node.js ... and i would expect that when we write the files from NR - other processes will continue, What we see is that other NR processes go on hold when we do file write. We have 100k r…

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## [I don't install node-red-contrib-rtsp-client](https://discourse.nodered.org/t/i-dont-install-node-red-contrib-rtsp-client/79234)

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**Author:** [@allacmc](https://discourse.nodered.org/u/allacmc)\
**Replies:** 4\
**Last updated:** [17 June 2023 06:56 UTC](https://discourse.nodered.org/t/i-dont-install-node-red-contrib-rtsp-client/79234 "2023-06-17T06:56:15Z")

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Continuing the discussion from How to display live video to the node red dashboard and have the ability to simply turn it on and turn it off with either a slide switch or "On" "Off" push buttons: I couldn't install …

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## [Format a multiple switch page](https://discourse.nodered.org/t/format-a-multiple-switch-page/79231)

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**Author:** [@muggins](https://discourse.nodered.org/u/muggins)\
**Replies:** 4\
**Last updated:** [17 June 2023 07:28 UTC](https://discourse.nodered.org/t/format-a-multiple-switch-page/79231 "2023-06-17T07:28:40Z")

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Can anyone advise as to how best to tidy/align these group of switches. There is quite a gap between label and switch icon. Yes my attic is 35 degrees today.

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## [How to insert an image from your local machine into a string object to be converted by the "html to pdf" node](https://discourse.nodered.org/t/how-to-insert-an-image-from-your-local-machine-into-a-string-object-to-be-converted-by-the-html-to-pdf-node/79260)

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**Author:** [@Willianvcn](https://discourse.nodered.org/u/Willianvcn)\
**Replies:** 2\
**Last updated:** [16 June 2023 19:47 UTC](https://discourse.nodered.org/t/how-to-insert-an-image-from-your-local-machine-into-a-string-object-to-be-converted-by-the-html-to-pdf-node/79260 "2023-06-16T19:47:59Z")

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My problem is that when I convert the page I created in html to the obj string that the 'html to pdf' node needs to receive to do the conversion, this obj string loses the ability to access the path ("\<img src="C:\\ Users…

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## [How to close a tcp connection initiated by a client](https://discourse.nodered.org/t/how-to-close-a-tcp-connection-initiated-by-a-client/79261)

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**Author:** [@vapourlyric](https://discourse.nodered.org/u/vapourlyric)\
**Replies:** 0\
**Last updated:** [16 June 2023 18:21 UTC](https://discourse.nodered.org/t/how-to-close-a-tcp-connection-initiated-by-a-client/79261 "2023-06-16T18:21:20Z")

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Hi everyone, I am utilizing a tcp in node with the type set to "Listen on". I am able to receive messages from connected clients, generate a reply to these messages with a complex data flow and finally send the reply to…

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## [Node-red-contrib-puppeteer-new](https://discourse.nodered.org/t/node-red-contrib-puppeteer-new/79174)

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**Author:** [@madmax](https://discourse.nodered.org/u/madmax)\
**Replies:** 5\
**Last updated:** [16 June 2023 13:39 UTC](https://discourse.nodered.org/t/node-red-contrib-puppeteer-new/79174 "2023-06-16T13:39:14Z")

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Hello! Has anyone got node-red-contrib-puppeteer-new to work? Unfortunately there are no instructions for this. Is that possible or do you have to install something afterwards?

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## [Project with a lot of data loading very slow](https://discourse.nodered.org/t/project-with-a-lot-of-data-loading-very-slow/79247)

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**Author:** [@\_Markus](https://discourse.nodered.org/u/_Markus)\
**Replies:** 6\
**Last updated:** [16 June 2023 13:39 UTC](https://discourse.nodered.org/t/project-with-a-lot-of-data-loading-very-slow/79247 "2023-06-16T13:39:05Z")

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Hello, I've created a project using node-red-contrib-modbus(v5.23.3) and node-red-dashboard(v3.1.7). In it there are 7 tabs/subflows in which every subflow has another IP address for modbus data reciver/transmiter but t…

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## [First time using buttons](https://discourse.nodered.org/t/first-time-using-buttons/78974)

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**Author:** [@spawnreaper](https://discourse.nodered.org/u/spawnreaper)\
**Replies:** 31\
**Last updated:** [16 June 2023 13:05 UTC](https://discourse.nodered.org/t/first-time-using-buttons/78974 "2023-06-16T13:05:31Z")

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I did one project in the past with node red and that worked after struggling a lot. Now im doing a new one but i've lost the minimal knowledge i learned in the first project. Here is my project. I have 5 buttons. 1 4x…

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## [ESP8266 NodeMCU + Homebridge + MQTT + Node-Red](https://discourse.nodered.org/t/esp8266-nodemcu-homebridge-mqtt-node-red/79248)

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**Author:** [@cherik](https://discourse.nodered.org/u/cherik)\
**Replies:** 1\
**Last updated:** [16 June 2023 12:26 UTC](https://discourse.nodered.org/t/esp8266-nodemcu-homebridge-mqtt-node-red/79248 "2023-06-16T12:26:59Z")

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Всем привет. Помогите пожалуйста новичку. Хотя бы с чего начать. Решил попробовать платформу Node REd. Имеется проект: ESP8266 NodeMCU с прошивкой ESPEsy к нему будет подключён Шаговый двигатель 28BYJ и всё это должно уп…

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## [Thousand separator (number mustache formatting)](https://discourse.nodered.org/t/thousand-separator-number-mustache-formatting/79240)

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**Author:** [@moimeme](https://discourse.nodered.org/u/moimeme)\
**Replies:** 2\
**Last updated:** [16 June 2023 10:22 UTC](https://discourse.nodered.org/t/thousand-separator-number-mustache-formatting/79240 "2023-06-16T10:22:34Z")

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Hello, I'm using mustache formatting to set decimal places on numbers in gauge with great success. However, I cannot set a locale as describe here: The result is that I have a comma as thousand separator that I would…

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## [Create node with conditional properties (tabs)](https://discourse.nodered.org/t/create-node-with-conditional-properties-tabs/79224)

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**Author:** [@BennyMeg](https://discourse.nodered.org/u/BennyMeg)\
**Replies:** 4\
**Last updated:** [16 June 2023 07:18 UTC](https://discourse.nodered.org/t/create-node-with-conditional-properties-tabs/79224 "2023-06-16T07:18:56Z")

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I am developing a new node (in v3) that control motor movement. Most of the properties are shared but some of them are conditional base of the motor operation mode, i.e., the user can choose to define propery1 or proper…

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## [General Question to experts](https://discourse.nodered.org/t/general-question-to-experts/79195)

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**Author:** [@colin0031](https://discourse.nodered.org/u/colin0031)\
**Replies:** 2\
**Last updated:** [16 June 2023 02:06 UTC](https://discourse.nodered.org/t/general-question-to-experts/79195 "2023-06-16T02:06:27Z")

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Hello, Hope the forum is not only for tech questions. I am using node red for a while and quite happy about it. And now I wonder If I shall get into Grafana and influx db. Since node red provides its own ui, is there m…

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## [Language Identification](https://discourse.nodered.org/t/language-identification/79230)

<div class="topic-metadata">

**Author:** [@madmax](https://discourse.nodered.org/u/madmax)\
**Replies:** 1\
**Last updated:** [16 June 2023 01:57 UTC](https://discourse.nodered.org/t/language-identification/79230 "2023-06-16T01:57:16Z")

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Hello! Is there a way to recognize and recognize text language in node red. the result should then be, for example, in English, German,.... And maybe a percentage with which probability it is the language. I hope tha…

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## [How to modify payload and display it in a text box](https://discourse.nodered.org/t/how-to-modify-payload-and-display-it-in-a-text-box/79228)

<div class="topic-metadata">

**Author:** [@rmystique](https://discourse.nodered.org/u/rmystique)\
**Replies:** 3\
**Last updated:** [16 June 2023 01:57 UTC](https://discourse.nodered.org/t/how-to-modify-payload-and-display-it-in-a-text-box/79228 "2023-06-16T01:57:06Z")

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I have: rpi-dht11 : msg : Object { topic: "rpi-dht11", \_msgid: "d5bb2441c0209e4e", payload: "19.00", humidity: "59.00", isValid: true … } and I want to multiply the "payload" by 1.8 +32 to convert it to F degrees and …

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