# Latest **URL:** https://discourse.nodered.org/latest.md?page=462 [Latest](https://discourse.nodered.org/latest.md) · [Categories](https://discourse.nodered.org/categories.md) · [Tags](https://discourse.nodered.org/tags.md) **Page:** 463 --- ## [How to scrape a specific information from a web page that loads after X seconds?](https://discourse.nodered.org/t/how-to-scrape-a-specific-information-from-a-web-page-that-loads-after-x-seconds/70519)
**Author:** [@boo](https://discourse.nodered.org/u/boo)\ **Replies:** 0\ **Last updated:** [12 November 2022 23:56 UTC](https://discourse.nodered.org/t/how-to-scrape-a-specific-information-from-a-web-page-that-loads-after-x-seconds/70519 "2022-11-12T23:56:18Z")
Hi, I would like to scrape a piece of information from the below url https://pastedownload.com/mdisk-video-downloader/#url=https://mdisk.me/convertor/640x321/FEaMGW which gives the download link after few seconds...how… --- ## [Using a variable within an influxDB node](https://discourse.nodered.org/t/using-a-variable-within-an-influxdb-node/70474)
**Author:** [@itcouldbeL](https://discourse.nodered.org/u/itcouldbeL)\ **Replies:** 7\ **Last updated:** [12 November 2022 21:20 UTC](https://discourse.nodered.org/t/using-a-variable-within-an-influxdb-node/70474 "2022-11-12T21:20:57Z")
Hi again, I'm trying to build a simple flow which will ping a set of IP addresses and send an alert if there is a failed ping. Part of my flow will check influxdb but I need the 'measurement' to be variable. in the scre… --- ## [Node to use with Smart Card readers and apply APDU protocol](https://discourse.nodered.org/t/node-to-use-with-smart-card-readers-and-apply-apdu-protocol/70291)
**Author:** [@JorgeGomes](https://discourse.nodered.org/u/JorgeGomes)\ **Replies:** 11\ **Last updated:** [12 November 2022 21:11 UTC](https://discourse.nodered.org/t/node-to-use-with-smart-card-readers-and-apply-apdu-protocol/70291 "2022-11-12T21:11:14Z")
Hello all, I'm new with Node red, and I've realized that it is a powerful tool with a huge capability, I'm looking for some nodes to use with Smart cards and also with APDU communication protocol. Do you know some that… --- ## [How to I allow my variable to be used and have my Arduino execute automatically?](https://discourse.nodered.org/t/how-to-i-allow-my-variable-to-be-used-and-have-my-arduino-execute-automatically/70514)
**Author:** [@Ceowens](https://discourse.nodered.org/u/Ceowens)\ **Replies:** 1\ **Last updated:** [12 November 2022 20:53 UTC](https://discourse.nodered.org/t/how-to-i-allow-my-variable-to-be-used-and-have-my-arduino-execute-automatically/70514 "2022-11-12T20:53:06Z")
I calculated an updating theta value on my Raspberry Pi, I'm sending that over to another Raspberry Pi because of the distance my project requires via MQTT, and what I want to do is to be able to send that variable over … --- ## [Install script node\ fails](https://discourse.nodered.org/t/install-script-node-version-fails/70431)
**Author:** [@bakman2](https://discourse.nodered.org/u/bakman2)\ **Replies:** 17\ **Last updated:** [12 November 2022 20:27 UTC](https://discourse.nodered.org/t/install-script-node-version-fails/70431 "2022-11-12T20:27:52Z")
I had installed a new server with nodejs, happened to be node 19.x, so I figured if I install NR with the --node16 option, it would uninstall v19 and install v16, but the install script states: This can take 20-30 minut… --- ## [Odd Behavior with HTTP node since upgrade](https://discourse.nodered.org/t/odd-behavior-with-http-node-since-upgrade/70512)
**Author:** [@davidmarch](https://discourse.nodered.org/u/davidmarch)\ **Replies:** 0\ **Last updated:** [12 November 2022 20:12 UTC](https://discourse.nodered.org/t/odd-behavior-with-http-node-since-upgrade/70512 "2022-11-12T20:12:20Z")
I have been using the a flow that takes address information from our CRM and sends it to a weather site (weatherbit.io) and retrieves the weather information. It has always worked fine until I upgraded. I was passing the… --- ## [Weird Happenings with Gmail. Can't figure it out](https://discourse.nodered.org/t/weird-happenings-with-gmail-cant-figure-it-out/70509)
**Author:** [@davidmarch](https://discourse.nodered.org/u/davidmarch)\ **Replies:** 0\ **Last updated:** [12 November 2022 20:04 UTC](https://discourse.nodered.org/t/weird-happenings-with-gmail-cant-figure-it-out/70509 "2022-11-12T20:04:30Z")
Thanks for providing the information regarding how to configure google account now that google doesn't allow for less secure apps. I decided to use a google account that I have for business that holds our youtube account… --- ## [How do I separate and define two of my variables?](https://discourse.nodered.org/t/how-do-i-separate-and-define-two-of-my-variables/70503)
**Author:** [@Ceowens](https://discourse.nodered.org/u/Ceowens)\ **Replies:** 2\ **Last updated:** [12 November 2022 18:56 UTC](https://discourse.nodered.org/t/how-do-i-separate-and-define-two-of-my-variables/70503 "2022-11-12T18:56:35Z")
I have code that is outputting an x value, a y value, a max value, a radius value, and a theta value within my Raspberry Pi that updates every second. An example output looks like this below: Highest Number: 31.9029 x:… --- ## [Trap receiver to digital output](https://discourse.nodered.org/t/trap-receiver-to-digital-output/70506)
**Author:** [@Gabi](https://discourse.nodered.org/u/Gabi)\ **Replies:** 0\ **Last updated:** [12 November 2022 18:54 UTC](https://discourse.nodered.org/t/trap-receiver-to-digital-output/70506 "2022-11-12T18:54:10Z")
Hi everyone, I need to trigger 2 digital outputs by SNMP traps, so seems like node-red is the best solution The main issue is that I cannot handle what oid to send, so I need to use function or switch in order to selec… --- ## [How to Communication AB PLC 1200 or 1400 with node red using USB](https://discourse.nodered.org/t/how-to-communication-ab-plc-1200-or-1400-with-node-red-using-usb/70183)
**Author:** [@Jayeshpitale1](https://discourse.nodered.org/u/Jayeshpitale1)\ **Replies:** 23\ **Last updated:** [12 November 2022 18:44 UTC](https://discourse.nodered.org/t/how-to-communication-ab-plc-1200-or-1400-with-node-red-using-usb/70183 "2022-11-12T18:44:32Z")
How to Communication Allen Bradley PLC 1200 or 1400 with node red using USB --- ## [Node-red merging multiple tasks](https://discourse.nodered.org/t/node-red-merging-multiple-tasks/70308)
**Author:** [@cano](https://discourse.nodered.org/u/cano)\ **Replies:** 29\ **Last updated:** [12 November 2022 09:51 UTC](https://discourse.nodered.org/t/node-red-merging-multiple-tasks/70308 "2022-11-12T09:51:23Z")
Hello, I will have 3 buttons on node-red and in a yaml file I will create from visual studio, which button I press will trigger the task in that button, how can I do it? --- ## [Status sensor minus of](https://discourse.nodered.org/t/status-sensor-minus-of/70455)
**Author:** [@manustars](https://discourse.nodered.org/u/manustars)\ **Replies:** 5\ **Last updated:** [12 November 2022 11:48 UTC](https://discourse.nodered.org/t/status-sensor-minus-of/70455 "2022-11-12T11:48:07Z")
I know it's trivial, but I can't. I would like to create a flow that sends me a message on telegram and a voice message on google home (for google invoking the tts service of HA) when an ha sensor drops below 20%. the no… --- ## [Using environment variable during another environment variable definiton in flow properties - issue](https://discourse.nodered.org/t/using-environment-variable-during-another-environment-variable-definiton-in-flow-properties-issue/70316)
**Author:** [@jopl](https://discourse.nodered.org/u/jopl)\ **Replies:** 11\ **Last updated:** [12 November 2022 11:25 UTC](https://discourse.nodered.org/t/using-environment-variable-during-another-environment-variable-definiton-in-flow-properties-issue/70316 "2022-11-12T11:25:04Z")
Dear all NodeRed enthusiastics, I notified I am not able to use environment variable in another environment variable definition in flow properties similar to example shown above. I don't know why, but the first variable… --- ## [How i can change an image in javascript?](https://discourse.nodered.org/t/how-i-can-change-an-image-in-javascript/70421)
**Author:** [@snowy127](https://discourse.nodered.org/u/snowy127)\ **Replies:** 1\ **Last updated:** [12 November 2022 10:03 UTC](https://discourse.nodered.org/t/how-i-can-change-an-image-in-javascript/70421 "2022-11-12T10:03:15Z")
Hi, I'm trying to make a dashboard that changes a rack image when value passes 15 centigrade for example, I've already tried several ways but I still can't solve it, I saw that I could also do it with an svg but I still … --- ## [Can node property dialog use data from config node property?](https://discourse.nodered.org/t/can-node-property-dialog-use-data-from-config-node-property/69588)
**Author:** [@Joe-AB1DO](https://discourse.nodered.org/u/Joe-AB1DO)\ **Replies:** 34\ **Last updated:** [12 November 2022 00:14 UTC](https://discourse.nodered.org/t/can-node-property-dialog-use-data-from-config-node-property/69588 "2022-11-12T00:14:41Z")
Hi All, Let me preface this by saying that I am not a programmer, but know enough to be dangerous. Also I am using a RPi4 running NR 3.0 and Node.js 16.17 OK here goes: I am trying to modify an i2c port expander node … --- ## [POST JSON Object via HTTP REQUEST](https://discourse.nodered.org/t/post-json-object-via-http-request/70425)
**Author:** [@interscope101](https://discourse.nodered.org/u/interscope101)\ **Replies:** 4\ **Last updated:** [12 November 2022 00:12 UTC](https://discourse.nodered.org/t/post-json-object-via-http-request/70425 "2022-11-12T00:12:45Z")
Hello, I've been running a node-red app that sent a string URL via an HTTP REQUEST (that also included a SHA 256 encoded signature in the headers). Now I needed to send a request that had some nested parameters (array),… --- ## [Refresh tab page on opening](https://discourse.nodered.org/t/refresh-tab-page-on-opening/70451)
**Author:** [@andro](https://discourse.nodered.org/u/andro)\ **Replies:** 7\ **Last updated:** [12 November 2022 00:03 UTC](https://discourse.nodered.org/t/refresh-tab-page-on-opening/70451 "2022-11-12T00:03:39Z")
Newbie here. I have a Javascript/CSS clock that I wrote that works great. It takes an injected message every one second to update the time. All is good but of course there is a delay of up to one second when you open tha… --- ## [Set atributes/styles in svg](https://discourse.nodered.org/t/set-atributes-styles-in-svg/70470)
**Author:** [@Dalen98](https://discourse.nodered.org/u/Dalen98)\ **Replies:** 1\ **Last updated:** [12 November 2022 00:11 UTC](https://discourse.nodered.org/t/set-atributes-styles-in-svg/70470 "2022-11-12T00:11:43Z")
hello all, I'm working with svg node, I use "update\_style/set\_style" or "update atributte/set\_atributte" commands to change the color of an object created in the same node, and it works fine, but I noticed that when relo… --- ## [Converting JSON input for use in the Filemaker Server API](https://discourse.nodered.org/t/converting-json-input-for-use-in-the-filemaker-server-api/70473)
**Author:** [@deninger](https://discourse.nodered.org/u/deninger)\ **Replies:** 1\ **Last updated:** [11 November 2022 23:41 UTC](https://discourse.nodered.org/t/converting-json-input-for-use-in-the-filemaker-server-api/70473 "2022-11-11T23:41:11Z")
I have set up a node to receive api data from a system. It comes in JSON format: { "ID": "1234567890", "Event":"Test Node-Red", "Context":"1234567-00" } When it appears in Node-Red, it shows up as a string wit… --- ## [Headache about migrating dimmable halogen spots to LED spots](https://discourse.nodered.org/t/headache-about-migrating-dimmable-halogen-spots-to-led-spots/70427)
**Author:** [@BartButenaers](https://discourse.nodered.org/u/BartButenaers)\ **Replies:** 20\ **Last updated:** [11 November 2022 23:23 UTC](https://discourse.nodered.org/t/headache-about-migrating-dimmable-halogen-spots-to-led-spots/70427 "2022-11-11T23:23:51Z")
Hi folks, Need help again from the electrical guys in this community... In my living room there are 7 (12V) halogen spots that can be put on/off and dimmed via 3 separate physical push buttons. With a short click the … --- ## [Flow.get function adds data to the flow context instead of just reading it](https://discourse.nodered.org/t/flow-get-function-adds-data-to-the-flow-context-instead-of-just-reading-it/70460)
**Author:** [@Martin12](https://discourse.nodered.org/u/Martin12)\ **Replies:** 4\ **Last updated:** [11 November 2022 20:17 UTC](https://discourse.nodered.org/t/flow-get-function-adds-data-to-the-flow-context-instead-of-just-reading-it/70460 "2022-11-11T20:17:22Z")
Hello everyone, I have some strange behaviour with the flow.get function. This function changes the context data, although I actually only want to read it out. Is it intended to do so? Is there a way that the context da… --- ## [\[NODE\] node-red-contrib-boolean-parser](https://discourse.nodered.org/t/node-node-red-contrib-boolean-parser/69987)
**Author:** [@SimonButtazzi](https://discourse.nodered.org/u/SimonButtazzi)\ **Replies:** 7\ **Last updated:** [11 November 2022 17:47 UTC](https://discourse.nodered.org/t/node-node-red-contrib-boolean-parser/69987 "2022-11-11T17:47:30Z")
Hi, I just created my first node these days, want to share it. I would be happy to get some feedback and reviews. Especially it would be nice to get hints, how to solve current issues of the Scorecard. As you can see… --- ## [Text formatting in a text node](https://discourse.nodered.org/t/text-formatting-in-a-text-node/70446)
**Author:** [@Mikee1234K](https://discourse.nodered.org/u/Mikee1234K)\ **Replies:** 16\ **Last updated:** [11 November 2022 16:57 UTC](https://discourse.nodered.org/t/text-formatting-in-a-text-node/70446 "2022-11-11T16:57:44Z")
I am using a text node to display the status of my doors and windows and motion sensors. One node for each. When all windows are closed, its showing 'All Windows Closed'. If windows are open, it lists which windows are … --- ## [Start Flows from Dashboard](https://discourse.nodered.org/t/start-flows-from-dashboard/70449)
**Author:** [@bernhard-mischokacad](https://discourse.nodered.org/u/bernhard-mischokacad)\ **Replies:** 4\ **Last updated:** [11 November 2022 16:11 UTC](https://discourse.nodered.org/t/start-flows-from-dashboard/70449 "2022-11-11T16:11:11Z")
Hi all, i want to start 3 Flows by clicking on 1 Button on the Dashboard. Is there any way to achieve this? Or any Workarounds? I didn't find anything like this... Thanks! --- ## [OwnTracks send request position](https://discourse.nodered.org/t/owntracks-send-request-position/70447)
**Author:** [@Giamma](https://discourse.nodered.org/u/Giamma)\ **Replies:** 1\ **Last updated:** [11 November 2022 14:48 UTC](https://discourse.nodered.org/t/owntracks-send-request-position/70447 "2022-11-11T14:48:07Z")
Hi, yesterday I installed Owntracks to send position from mobile to my pc with node red \> Worldmap. There are 4 mode on mobile how to send the position but I don't need this option, I'd like to have the opportunity to … --- ## [Style template colours not working](https://discourse.nodered.org/t/style-template-colours-not-working/70444)
**Author:** [@Mikee1234K](https://discourse.nodered.org/u/Mikee1234K)\ **Replies:** 8\ **Last updated:** [11 November 2022 15:15 UTC](https://discourse.nodered.org/t/style-template-colours-not-working/70444 "2022-11-11T15:15:28Z")
I created a template to be able to use more than the standard colours. I have created this template: But when I try to use the colours, they do not work. I try to use them in a change node as per screenshot. I have t… --- ## [Compare time now against time as a varible](https://discourse.nodered.org/t/compare-time-now-against-time-as-a-varible/70435)
**Author:** [@gazzaman22](https://discourse.nodered.org/u/gazzaman22)\ **Replies:** 15\ **Last updated:** [11 November 2022 14:34 UTC](https://discourse.nodered.org/t/compare-time-now-against-time-as-a-varible/70435 "2022-11-11T14:34:34Z")
Hi all im trying to compare 2 times and calculate the difference, one is from a trigger and the other is a pre-set time , I found how to check the times and get the time difference but i can work how to have a set time … --- ## [How to customize placeholder colour of nodered edit dropdown node](https://discourse.nodered.org/t/how-to-customize-placeholder-colour-of-nodered-edit-dropdown-node/70106)
**Author:** [@bertaud](https://discourse.nodered.org/u/bertaud)\ **Replies:** 2\ **Last updated:** [11 November 2022 12:16 UTC](https://discourse.nodered.org/t/how-to-customize-placeholder-colour-of-nodered-edit-dropdown-node/70106 "2022-11-11T12:16:07Z")
i want to change text color of placeholder node information and succeed to do it an idea ? --- ## [How to force ui\_text value to NOT be bold](https://discourse.nodered.org/t/how-to-force-ui-text-value-to-not-be-bold/70412)
**Author:** [@mzn723](https://discourse.nodered.org/u/mzn723)\ **Replies:** 2\ **Last updated:** [11 November 2022 12:11 UTC](https://discourse.nodered.org/t/how-to-force-ui-text-value-to-not-be-bold/70412 "2022-11-11T12:11:01Z")
I'm novice at html I thought this should be simple, but I've been wasting quiet sometime on this. So, other than using a ui\_template node, how do I force the value on a ui\_text to appear in normal font, to not be bold? … --- ## [Reliable reading multiple ds18b20’s with a raspberry pi without flow stalls](https://discourse.nodered.org/t/reliable-reading-multiple-ds18b20-s-with-a-raspberry-pi-without-flow-stalls/70433)
**Author:** [@torrdan](https://discourse.nodered.org/u/torrdan)\ **Replies:** 4\ **Last updated:** [11 November 2022 11:30 UTC](https://discourse.nodered.org/t/reliable-reading-multiple-ds18b20-s-with-a-raspberry-pi-without-flow-stalls/70433 "2022-11-11T11:30:20Z")
Hi all, I have the following setup: 4 digital temperature sensors DS18b20 which are physically wired in a parallel configuration (sensors are connected one after the other in a line) with CAT5 wires to the GPIO4 of the… [Previous page](https://discourse.nodered.org/latest.md?page=461) [Next page](https://discourse.nodered.org/latest.md?page=463)