# Latest **URL:** https://discourse.nodered.org/latest.md?page=750 [Latest](https://discourse.nodered.org/latest.md) · [Categories](https://discourse.nodered.org/categories.md) · [Tags](https://discourse.nodered.org/tags.md) **Page:** 751 --- ## [Need flow to output messages based on input from dashboard](https://discourse.nodered.org/t/need-flow-to-output-messages-based-on-input-from-dashboard/49908)

**Author:** [@gauravmyid](https://discourse.nodered.org/u/gauravmyid)\ **Replies:** 4\ **Last updated:** [19 August 2021 12:05 UTC](https://discourse.nodered.org/t/need-flow-to-output-messages-based-on-input-from-dashboard/49908 "2021-08-19T12:05:40Z")

Hi, i am completely new in node red. i need a help to create a flow which can output "cool" and "off" based on the value between range of 33 and 29 respectively but i should also be able to change the range from node re… --- ## [Node-red-contrib-ffmpeg-spawn](https://discourse.nodered.org/t/node-red-contrib-ffmpeg-spawn/44427)

**Author:** [@kevinGodell](https://discourse.nodered.org/u/kevinGodell)\ **Replies:** 64\ **Last updated:** [26 July 2021 15:47 UTC](https://discourse.nodered.org/t/node-red-contrib-ffmpeg-spawn/44427 "2021-07-26T15:47:45Z")

The ffmpeg node is ready for testing. It is similar to the exec node to spawn ffmpeg, with additional features. An example flow doing way more than a regular human needs to do: \[{"id":"93d74c4e.4c8fe","type":"ffmpeg-sp… --- ## [How to start the execution of functionality in node red using the api?](https://discourse.nodered.org/t/how-to-start-the-execution-of-functionality-in-node-red-using-the-api/49855)

**Author:** [@Snoz3f](https://discourse.nodered.org/u/Snoz3f)\ **Replies:** 21\ **Last updated:** [19 August 2021 10:20 UTC](https://discourse.nodered.org/t/how-to-start-the-execution-of-functionality-in-node-red-using-the-api/49855 "2021-08-19T10:20:21Z")

Hello. How can i start execution in node red from another app with node-red api? RED.nodes.startFlow? --- ## [Delete the OK/Cancel Notification Pop Up Window](https://discourse.nodered.org/t/delete-the-ok-cancel-notification-pop-up-window/18958)

**Author:** [@MarcelFinzi](https://discourse.nodered.org/u/MarcelFinzi)\ **Replies:** 21\ **Last updated:** [19 August 2021 10:14 UTC](https://discourse.nodered.org/t/delete-the-ok-cancel-notification-pop-up-window/18958 "2021-08-19T10:14:22Z")

Hi everyone, i hope you can help me ! I am using the OK/Cancel Notification in my Dashboard, because I want to see the Notification in the middle of the screen (for better visualization). My problem is, that I am using… --- ## [UIBuilder Using URL variables](https://discourse.nodered.org/t/uibuilder-using-url-variables/49625)

**Author:** [@Ashfaak](https://discourse.nodered.org/u/Ashfaak)\ **Replies:** 3\ **Last updated:** [19 August 2021 10:11 UTC](https://discourse.nodered.org/t/uibuilder-using-url-variables/49625 "2021-08-19T10:11:56Z")

Hi. Is it possible to use variables of this form when using UIBuilder? https://example.com/uibuilder/?site=abc I would like to create QR codes at a few different locations and would like the location 'auto-filled' with… --- ## [Node status Translation](https://discourse.nodered.org/t/node-status-translation/49907)

**Author:** [@Vinzenz](https://discourse.nodered.org/u/Vinzenz)\ **Replies:** 0\ **Last updated:** [19 August 2021 09:43 UTC](https://discourse.nodered.org/t/node-status-translation/49907 "2021-08-19T09:43:13Z")

Hi, I am trying to translate the status of my node, which worked fine so far until I tried to add some changing information into the status. I am counting sth. in the status of my node and want to display the correspondi… --- ## [Node-red-contrib-node-moz-readability A simple implementation of the Mozilla readability lib](https://discourse.nodered.org/t/node-red-contrib-node-moz-readability-a-simple-implementation-of-the-mozilla-readability-lib/49902)

**Author:** [@dugite-code](https://discourse.nodered.org/u/dugite-code)\ **Replies:** 0\ **Last updated:** [19 August 2021 08:53 UTC](https://discourse.nodered.org/t/node-red-contrib-node-moz-readability-a-simple-implementation-of-the-mozilla-readability-lib/49902 "2021-08-19T08:53:01Z")

I've just uploaded my early beta work for using the Mozilla stand-alone Readability.js library as a node. It's a very simple node with not many moving parts. HTML goes in on the payload and out comes: title: article t… --- ## [Problem with multiple line chart](https://discourse.nodered.org/t/problem-with-multiple-line-chart/49900)

**Author:** [@OriolFM](https://discourse.nodered.org/u/OriolFM)\ **Replies:** 2\ **Last updated:** [19 August 2021 08:33 UTC](https://discourse.nodered.org/t/problem-with-multiple-line-chart/49900 "2021-08-19T08:33:06Z")

Is there any way to "lock" a topic into a certain line? The behaviour I observed is that, after rebooting the server (for maintenance/update purposes, for instance), the line colours are assigned to first come/first ser… --- ## [2 questions in one post:) - ui messages and code](https://discourse.nodered.org/t/2-questions-in-one-post-ui-messages-and-code/49875)

**Author:** [@paulalsmith1000](https://discourse.nodered.org/u/paulalsmith1000)\ **Replies:** 7\ **Last updated:** [19 August 2021 07:53 UTC](https://discourse.nodered.org/t/2-questions-in-one-post-ui-messages-and-code/49875 "2021-08-19T07:53:23Z")

Hi everyone/anyone (especially E1cid) Could someone possibly give me a very basic example of how to listen for messages in the ui template using 'scope.$watch'- there is an example in the help section of the node, but I… --- ## [Writing data to Indluxdb batch node](https://discourse.nodered.org/t/writing-data-to-indluxdb-batch-node/48460)

**Author:** [@PAT](https://discourse.nodered.org/u/PAT)\ **Replies:** 28\ **Last updated:** [19 August 2021 07:15 UTC](https://discourse.nodered.org/t/writing-data-to-indluxdb-batch-node/48460 "2021-08-19T07:15:00Z")

Hi all please help with my data format problem. i am pulling data from modbus tcp then splitting data in to seperate flows. then i give it a topic and scale the number afterwards. i now need to join all flows and send t… --- ## [Send information only by pressing a button "Speichern"](https://discourse.nodered.org/t/send-information-only-by-pressing-a-button-speichern/49863)

**Author:** [@ClemensSimon](https://discourse.nodered.org/u/ClemensSimon)\ **Replies:** 3\ **Last updated:** [19 August 2021 06:23 UTC](https://discourse.nodered.org/t/send-information-only-by-pressing-a-button-speichern/49863 "2021-08-19T06:23:08Z")

Dear Node-Red´s I do have a problem to hand off informations only if a "Store" button is pressed. My flow looks like this: \[{"id":"46f3fadcb97268ab","type":"ui\_button","z":"84622180359efd62","name":"Speichern","gro… --- ## [Show image from directory in dashboard](https://discourse.nodered.org/t/show-image-from-directory-in-dashboard/49470)

**Author:** [@luisof16](https://discourse.nodered.org/u/luisof16)\ **Replies:** 4\ **Last updated:** [19 August 2021 02:26 UTC](https://discourse.nodered.org/t/show-image-from-directory-in-dashboard/49470 "2021-08-19T02:26:55Z")

Hi, everyone , I´m newbie , I try to show image located in /home/pi/Img folder , also i configured settings.js file with static route but when try check image with url path show error like ''Cannot GET /Img.jpg", th… --- ## [Context auto-refresh option](https://discourse.nodered.org/t/context-auto-refresh-option/49893)

**Author:** [@braunku](https://discourse.nodered.org/u/braunku)\ **Replies:** 0\ **Last updated:** [19 August 2021 01:48 UTC](https://discourse.nodered.org/t/context-auto-refresh-option/49893 "2021-08-19T01:48:30Z")

It would be nice if there was a radio button near the refresh button on the context tab to auto-refresh at some reasonable interval (5 sec?). When debugging it gets cumbersome to keep pressing refresh. Also if it coul… --- ## [What is settings.js flowFilePretty supposed to do?](https://discourse.nodered.org/t/what-is-settings-js-flowfilepretty-supposed-to-do/49890)

**Author:** [@jbudd](https://discourse.nodered.org/u/jbudd)\ **Replies:** 5\ **Last updated:** [19 August 2021 00:49 UTC](https://discourse.nodered.org/t/what-is-settings-js-flowfilepretty-supposed-to-do/49890 "2021-08-19T00:49:45Z")

My flows\_hostname.json file is just one very long line. In settings.js it says: // To enabled pretty-printing of the flow within the flow file, set the following // property to true: // flowFilePretty: true, But if… --- ## [Communicate with SINUMERIK controller](https://discourse.nodered.org/t/communicate-with-sinumerik-controller/49822)

**Author:** [@sahsha](https://discourse.nodered.org/u/sahsha)\ **Replies:** 1\ **Last updated:** [18 August 2021 22:45 UTC](https://discourse.nodered.org/t/communicate-with-sinumerik-controller/49822 "2021-08-18T22:45:44Z")

Is there a way to communicate & get machine data from below mentioned Siemens' controller models using Node-RED. SINUMERIK 802D BASE LINE SINUMERIK 802D SL SINUMERIK 808D SINUMERIK 828D If anyone have tried something … --- ## [Dashboard button + Wake-On-LAN](https://discourse.nodered.org/t/dashboard-button-wake-on-lan/49853)

**Author:** [@daxliniere](https://discourse.nodered.org/u/daxliniere)\ **Replies:** 2\ **Last updated:** [18 August 2021 21:58 UTC](https://discourse.nodered.org/t/dashboard-button-wake-on-lan/49853 "2021-08-18T21:58:37Z")

Hey gang, I realise this is a kinda rudimentary question, but I'm hoping to learn how to understand this. The notes for the Wake-On-LAN module say you can use msg.mac to pass the MAC address. How would I set a dashboar… --- ## [Data from local weatherstation](https://discourse.nodered.org/t/data-from-local-weatherstation/49887)

**Author:** [@dick](https://discourse.nodered.org/u/dick)\ **Replies:** 4\ **Last updated:** [18 August 2021 20:34 UTC](https://discourse.nodered.org/t/data-from-local-weatherstation/49887 "2021-08-18T20:34:50Z")

**Author:** [@scurvydog](https://discourse.nodered.org/u/scurvydog)\ **Replies:** 2\ **Last updated:** [18 August 2021 17:44 UTC](https://discourse.nodered.org/t/drop-down-node-adjust-font-size/49883 "2021-08-18T17:44:14Z")

I am looking for guidance on how I would adjust the font size on my UI Dropdown Node selector text field. I was able to adjust the Label text size but, I want to adjust the selector text font size to match. In the below … --- ## [Credential management](https://discourse.nodered.org/t/credential-management/49845)

**Author:** [@Ostro](https://discourse.nodered.org/u/Ostro)\ **Replies:** 12\ **Last updated:** [18 August 2021 16:36 UTC](https://discourse.nodered.org/t/credential-management/49845 "2021-08-18T16:36:45Z")

Hi, I doesn't understand how the credential works in node-red. I read about the flow.cred.son, the setting file to choose the hash key and so on. But i didn't find an simple explanation to store a credential and use i… --- ## [How to use node s7 to show pie chart](https://discourse.nodered.org/t/how-to-use-node-s7-to-show-pie-chart/49866)

**Author:** [@nusto](https://discourse.nodered.org/u/nusto)\ **Replies:** 6\ **Last updated:** [18 August 2021 15:49 UTC](https://discourse.nodered.org/t/how-to-use-node-s7-to-show-pie-chart/49866 "2021-08-18T15:49:39Z")

hello , I have data from S7 and I want to show on pie chart in dashboard but it didn't showed. I don't know how to use pie chart to show my data from my S7. please --- ## [PLC testing with Node-Red](https://discourse.nodered.org/t/plc-testing-with-node-red/49870)

**Author:** [@Burak](https://discourse.nodered.org/u/Burak)\ **Replies:** 3\ **Last updated:** [18 August 2021 15:44 UTC](https://discourse.nodered.org/t/plc-testing-with-node-red/49870 "2021-08-18T15:44:27Z")

Hi, i am currently looking for a master thesis subject. I stumbled upon Node-Red and asked myself if it is possible to create a HMI with nodes and those nodes would contain command to a LAN-connected PLC like "Drive X Ax… --- ## [Apexcharts how to add js scripts](https://discourse.nodered.org/t/apexcharts-how-to-add-js-scripts/49825)

**Author:** [@nerevar](https://discourse.nodered.org/u/nerevar)\ **Replies:** 8\ **Last updated:** [18 August 2021 12:41 UTC](https://discourse.nodered.org/t/apexcharts-how-to-add-js-scripts/49825 "2021-08-18T12:41:34Z")

Hi, I've been trying to make apexcharts to work on the dashboard via template + ui\_template nodes. The chart works only the first time after deploy, afterwards it does not. Heres the flow: \[{"id":"320dd3f4.959a0c","t… --- ## [How secure is opening up a public endpoint](https://discourse.nodered.org/t/how-secure-is-opening-up-a-public-endpoint/49810)

**Author:** [@CybrPimp](https://discourse.nodered.org/u/CybrPimp)\ **Replies:** 3\ **Last updated:** [18 August 2021 12:11 UTC](https://discourse.nodered.org/t/how-secure-is-opening-up-a-public-endpoint/49810 "2021-08-18T12:11:55Z")

We want to be able to open up a public endpoint (HTTP In Node) to be a webhook to receive post data from Zapier, but I want to make sure it is secure. You can get a list of the Zapier server IP list but this is constant… --- ## [Collect just a number in a flow](https://discourse.nodered.org/t/collect-just-a-number-in-a-flow/49847)

**Author:** [@mykerinos1](https://discourse.nodered.org/u/mykerinos1)\ **Replies:** 5\ **Last updated:** [18 August 2021 12:08 UTC](https://discourse.nodered.org/t/collect-just-a-number-in-a-flow/49847 "2021-08-18T12:08:36Z")

Hello. i receive data from a http link. i just want to extract or separate data to extract value. actually i have that. how can i do please ? --- ## [Possible to hide a menu choice dynamically?](https://discourse.nodered.org/t/possible-to-hide-a-menu-choice-dynamically/49831)

**Author:** [@Jean-Luc](https://discourse.nodered.org/u/Jean-Luc)\ **Replies:** 4\ **Last updated:** [18 August 2021 11:46 UTC](https://discourse.nodered.org/t/possible-to-hide-a-menu-choice-dynamically/49831 "2021-08-18T11:46:41Z")

Hello, My question, is it possible to hide a menu choice dynamically? For example, depending on a variable defined "false" before, the menu choice "MQTT settings" would not appear. I have read in the forum if there is… --- ## [Unable to install smart-nora](https://discourse.nodered.org/t/unable-to-install-smart-nora/49821)

**Author:** [@gauravmyid](https://discourse.nodered.org/u/gauravmyid)\ **Replies:** 5\ **Last updated:** [18 August 2021 09:43 UTC](https://discourse.nodered.org/t/unable-to-install-smart-nora/49821 "2021-08-18T09:43:54Z")

Hello, i am running nodered server on ibm cloud and unable to install smart-nora pallet. Earlier i was using google cloud successfully. --- ## [How to share flows and make it easier install required modules?](https://discourse.nodered.org/t/how-to-share-flows-and-make-it-easier-install-required-modules/49867)

**Author:** [@Prathamesh\_Gharat](https://discourse.nodered.org/u/Prathamesh_Gharat)\ **Replies:** 1\ **Last updated:** [18 August 2021 09:41 UTC](https://discourse.nodered.org/t/how-to-share-flows-and-make-it-easier-install-required-modules/49867 "2021-08-18T09:41:11Z")

When I currently import flows on a new NodeRed installation, the required nodes are missing. Is there a way to make NodeRed suggest/ask to install specific nodes when importing a flow? --- ## [Write Exif/Metadata to file](https://discourse.nodered.org/t/write-exif-metadata-to-file/49699)

**Author:** [@Nbra](https://discourse.nodered.org/u/Nbra)\ **Replies:** 2\ **Last updated:** [18 August 2021 06:51 UTC](https://discourse.nodered.org/t/write-exif-metadata-to-file/49699 "2021-08-18T06:51:04Z")

Hi, Has anyone a good solution for writing geotag data to a image file via Node Red? I see there is many good solutions for reading exif data. Im extracting .jpeg images from a RTSP stream using ffmpeg in a exec node, … --- ## [Multiply 2 payloads after join node](https://discourse.nodered.org/t/multiply-2-payloads-after-join-node/49857)

**Author:** [@gjones84](https://discourse.nodered.org/u/gjones84)\ **Replies:** 4\ **Last updated:** [18 August 2021 06:11 UTC](https://discourse.nodered.org/t/multiply-2-payloads-after-join-node/49857 "2021-08-18T06:11:06Z")

Hi All, Tried to find the answer for this. I can find how to sum 2 separate message payloads. But how do I multiply them together? See below. I want to multiply 10 by 20. \[{"id":"e1b07ecd.4ceac","type":"change","z":"f4… --- ## [Function Not Returning Value](https://discourse.nodered.org/t/function-not-returning-value/49854)

**Author:** [@ChZeman](https://discourse.nodered.org/u/ChZeman)\ **Replies:** 13\ **Last updated:** [17 August 2021 23:03 UTC](https://discourse.nodered.org/t/function-not-returning-value/49854 "2021-08-17T23:03:17Z")

I have a function in a node that searches for and returns the line of a text file. It does what it should, but the output is only assigned to the variable inside the function. Additionally, the debug output seems to indi… [Previous page](https://discourse.nodered.org/latest.md?page=749) [Next page](https://discourse.nodered.org/latest.md?page=751)