# Latest

**URL:** https://discourse.nodered.org/latest.md?page=479

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

**Page:** 480

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## [Problem with install node-red-contrib-modbus](https://discourse.nodered.org/t/problem-with-install-node-red-contrib-modbus/67402)

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**Author:** [@gcaceres](https://discourse.nodered.org/u/gcaceres)\
**Replies:** 3\
**Last updated:** [19 October 2022 08:57 UTC](https://discourse.nodered.org/t/problem-with-install-node-red-contrib-modbus/67402 "2022-10-19T08:57:10Z")

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Hello , please you can to help , I have this error And Not can to Install Modbus Contrib in a Raspberry , I have Node red 3.02 Thanks for you help 2022-09-06T16:18:56.830Z Install : node-red-contrib-modbus 5.23.1 2022…

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## [Is there a way to use the button node to replace the inject button?](https://discourse.nodered.org/t/is-there-a-way-to-use-the-button-node-to-replace-the-inject-button/69018)

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**Author:** [@yyyuma319](https://discourse.nodered.org/u/yyyuma319)\
**Replies:** 4\
**Last updated:** [19 October 2022 08:51 UTC](https://discourse.nodered.org/t/is-there-a-way-to-use-the-button-node-to-replace-the-inject-button/69018 "2022-10-19T08:51:24Z")

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I am a beginner at node-red and I am planning to use a button in the dashboard to act as the inject button so that I do not need to access the flow itself to activate the inject node so that everything can be done within…

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## [TV browser and Node-red](https://discourse.nodered.org/t/tv-browser-and-node-red/68984)

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**Author:** [@AK\_Cofig](https://discourse.nodered.org/u/AK_Cofig)\
**Replies:** 20\
**Last updated:** [19 October 2022 08:33 UTC](https://discourse.nodered.org/t/tv-browser-and-node-red/68984 "2022-10-19T08:33:29Z")

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Hi everybody, My node-red is installed on raspberry pi and I wanna access the Node-red dashboard via my TV browser. The TV and Rasp Pi are both on the same network but I couldn't understand why I have no access to Node-…

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## [Best Way To Instigate A Countdown Timer - Sonoff Smart Outlet](https://discourse.nodered.org/t/best-way-to-instigate-a-countdown-timer-sonoff-smart-outlet/69204)

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**Author:** [@moonlight](https://discourse.nodered.org/u/moonlight)\
**Replies:** 4\
**Last updated:** [19 October 2022 00:45 UTC](https://discourse.nodered.org/t/best-way-to-instigate-a-countdown-timer-sonoff-smart-outlet/69204 "2022-10-19T00:45:16Z")

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I have a project underway to turn off my soldering iron after a set period using a Sonoff S26 smart outlet. I have flashed it with Tasmota and have the Sonoff posting MQTT messages about its status to NR. I want to be a…

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## [Add log to Dashboard without an array](https://discourse.nodered.org/t/add-log-to-dashboard-without-an-array/69210)

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**Author:** [@thalesmaoa](https://discourse.nodered.org/u/thalesmaoa)\
**Replies:** 3\
**Last updated:** [19 October 2022 00:07 UTC](https://discourse.nodered.org/t/add-log-to-dashboard-without-an-array/69210 "2022-10-19T00:07:30Z")

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Hello, I there are many contributors that already have discussed this problem. However, I have a question about the presented approach. In general, variables are stored in context or flow. An array is built and th…

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## [Mqtt from ESP to Node-red](https://discourse.nodered.org/t/mqtt-from-esp-to-node-red/69041)

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**Author:** [@mojgithub](https://discourse.nodered.org/u/mojgithub)\
**Replies:** 24\
**Last updated:** [18 October 2022 21:45 UTC](https://discourse.nodered.org/t/mqtt-from-esp-to-node-red/69041 "2022-10-18T21:45:35Z")

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hi i am using EspMQTTClient.h on my ESP for sending mqtt to node-red. From my Mqtt nodes i am sending my data to influxdb node. Every 5min i send around 12mqtt msg from my ESP. On Node-red side i have set up a debug n…

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## [Loop over an array/object without split node](https://discourse.nodered.org/t/loop-over-an-array-object-without-split-node/69202)

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**Author:** [@protonmw](https://discourse.nodered.org/u/protonmw)\
**Replies:** 7\
**Last updated:** [18 October 2022 21:02 UTC](https://discourse.nodered.org/t/loop-over-an-array-object-without-split-node/69202 "2022-10-18T21:02:59Z")

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Hi all! I need to loop/iterate over an array/object and do some processing for each element. But I have do do this in series (communicate with an device via serial port and store data) so I cant use the split node since…

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## [HTML Scrape - missing elements](https://discourse.nodered.org/t/html-scrape-missing-elements/68850)

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**Author:** [@dougle03](https://discourse.nodered.org/u/dougle03)\
**Replies:** 11\
**Last updated:** [18 October 2022 20:59 UTC](https://discourse.nodered.org/t/html-scrape-missing-elements/68850 "2022-10-18T20:59:54Z")

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Hi all, So trying to help someone out on another group with a problem. Using a html request node to fetch a webpage, then into a html node to select on div. Getting a predictable number of arrays but it's missing one v…

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## [Getting 2 different lines/datapoints via chart.js](https://discourse.nodered.org/t/getting-2-different-lines-datapoints-via-chart-js/69208)

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**Author:** [@Natan](https://discourse.nodered.org/u/Natan)\
**Replies:** 3\
**Last updated:** [18 October 2022 20:47 UTC](https://discourse.nodered.org/t/getting-2-different-lines-datapoints-via-chart-js/69208 "2022-10-18T20:47:12Z")

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Best, i am working through chart.js which i got here: https://flows.nodered.org/flow/c3dc75c47323a2754f5285225bce64b5. And it works very well if I want to show 1 graph until I want to add 2 different data points to dis…

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## [How to find specific log](https://discourse.nodered.org/t/how-to-find-specific-log/69219)

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**Author:** [@hazymat](https://discourse.nodered.org/u/hazymat)\
**Replies:** 1\
**Last updated:** [18 October 2022 20:27 UTC](https://discourse.nodered.org/t/how-to-find-specific-log/69219 "2022-10-18T20:27:11Z")

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I recently updated a contrib within pallete (node-red-contrib-hugemagic) and it broke a lot of stuff. Since then, time has passed and I've been looking to fix it in different ways. But having read a lot of comments and …

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## [Run as Windows Service](https://discourse.nodered.org/t/run-as-windows-service/69157)

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**Author:** [@Ulrich](https://discourse.nodered.org/u/Ulrich)\
**Replies:** 4\
**Last updated:** [18 October 2022 20:22 UTC](https://discourse.nodered.org/t/run-as-windows-service/69157 "2022-10-18T20:22:26Z")

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I'm a windows guy. I have installed a new Windows 2022 Server, joined our windows domain, installed node.js 14.20.1 and npm 6.14.17 i moved npm to %AllUsersProfile% i installed node-red with "npm install node-red" i c…

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## [Mqtt issue setup error](https://discourse.nodered.org/t/mqtt-issue-setup-error/69212)

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**Author:** [@ebolisa](https://discourse.nodered.org/u/ebolisa)\
**Replies:** 10\
**Last updated:** [18 October 2022 20:06 UTC](https://discourse.nodered.org/t/mqtt-issue-setup-error/69212 "2022-10-18T20:06:07Z")

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Hi, I get "Error: Invalid topic specified" with my mqtt server but the topic is injected from the nodes. I know it was working before so, not sure what I changed to cause the error. I appreciate some help. TIA

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## [Forward payload from previous node based on input boolean node \[SOLVED\]](https://discourse.nodered.org/t/forward-payload-from-previous-node-based-on-input-boolean-node-solved/69213)

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**Author:** [@homonto](https://discourse.nodered.org/u/homonto)\
**Replies:** 1\
**Last updated:** [18 October 2022 19:04 UTC](https://discourse.nodered.org/t/forward-payload-from-previous-node-based-on-input-boolean-node-solved/69213 "2022-10-18T19:04:40Z")

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Hi, I got completely stopped by quite simple issue: Node sends data (i.e. temperature) but then I want this payload to go to the next one ONLY if the switch (input boolean) is ON. Apparently, when I add current state no…

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## [Simulating Multiple Modbus Slaves](https://discourse.nodered.org/t/simulating-multiple-modbus-slaves/69214)

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**Author:** [@vigalent](https://discourse.nodered.org/u/vigalent)\
**Replies:** 0\
**Last updated:** [18 October 2022 18:27 UTC](https://discourse.nodered.org/t/simulating-multiple-modbus-slaves/69214 "2022-10-18T18:27:37Z")

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I'm working on a project whereby I'm using a IOT gateway monitoring multiple systems / sensors that runs an instance of Node-Red. I'm pulling data back and exposing point values via ModbusTCP (using \[node-red-contrib-mo…

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## [Unable to edit function nodes after update (only with Monaco; ace works fine)](https://discourse.nodered.org/t/unable-to-edit-function-nodes-after-update-only-with-monaco-ace-works-fine/69169)

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**Author:** [@JorisKingma](https://discourse.nodered.org/u/JorisKingma)\
**Replies:** 4\
**Last updated:** [18 October 2022 16:56 UTC](https://discourse.nodered.org/t/unable-to-edit-function-nodes-after-update-only-with-monaco-ace-works-fine/69169 "2022-10-18T16:56:13Z")

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After upgrading from an older version of NR I am unable to edit function nodes. This behaviour is only present when using the monaco editor. When changing to the ace editor I'm perfectly able to alter the code in the nod…

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## [FYI - Fetch API in NodeJs 17](https://discourse.nodered.org/t/fyi-fetch-api-in-nodejs-17/69025)

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**Author:** [@BartButenaers](https://discourse.nodered.org/u/BartButenaers)\
**Replies:** 4\
**Last updated:** [18 October 2022 16:29 UTC](https://discourse.nodered.org/t/fyi-fetch-api-in-nodejs-17/69025 "2022-10-18T16:29:14Z")

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Hi folks, This is not a question, but just something I thought that might be of interest to some developers in this community. Some time ago the Http-Request node has been refactored completely, because it was build on…

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## [Change DMX dimmer output by a pushbutton](https://discourse.nodered.org/t/change-dmx-dimmer-output-by-a-pushbutton/69166)

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**Author:** [@Sweetpeet](https://discourse.nodered.org/u/Sweetpeet)\
**Replies:** 2\
**Last updated:** [18 October 2022 15:47 UTC](https://discourse.nodered.org/t/change-dmx-dimmer-output-by-a-pushbutton/69166 "2022-10-18T15:47:35Z")

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Hi There, I'm trying to create a dimmer value into a JSON line. This dimmer value needs to be controlled by a pushbutton. When you press once, the light goes on. When you keep the button pressed, the dimmer value goes do…

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## [Add Button Icon to dashboard](https://discourse.nodered.org/t/add-button-icon-to-dashboard/68831)

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**Author:** [@Marty1982](https://discourse.nodered.org/u/Marty1982)\
**Replies:** 23\
**Last updated:** [18 October 2022 14:34 UTC](https://discourse.nodered.org/t/add-button-icon-to-dashboard/68831 "2022-10-18T14:34:45Z")

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Hello all! I want to add a new button so i can collapse all the groups. So far i have this flow. \[ { "id": "d16906d2cc3c7ede", "type": "inject", "z": "c1337e84224bd2b5", "name": "…

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## [New to XML data](https://discourse.nodered.org/t/new-to-xml-data/69194)

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**Author:** [@Kaij3](https://discourse.nodered.org/u/Kaij3)\
**Replies:** 6\
**Last updated:** [18 October 2022 09:36 UTC](https://discourse.nodered.org/t/new-to-xml-data/69194 "2022-10-18T09:36:59Z")

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Hello all!, Recently, I've been using MT Connect to retrieve data from one of the equipment, and after using an XML node, I was able to retrieve the data shown at the bottom of the image. However, in order to take t…

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## [SSH to host based incoming JSON payload](https://discourse.nodered.org/t/ssh-to-host-based-incoming-json-payload/20137)

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**Author:** [@indurna](https://discourse.nodered.org/u/indurna)\
**Replies:** 2\
**Last updated:** [18 October 2022 09:17 UTC](https://discourse.nodered.org/t/ssh-to-host-based-incoming-json-payload/20137 "2022-10-18T09:17:51Z")

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I am trying to ssh into a host using an user where the HOST and USER information comes from a JSON payload So the incoming JSON pay load is something like this {"server": "abc.xyz.com", "user": "devops", "cmd": "unam…

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## [Running node red on a webserver instead of a local computer](https://discourse.nodered.org/t/running-node-red-on-a-webserver-instead-of-a-local-computer/68920)

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**Author:** [@9toejack](https://discourse.nodered.org/u/9toejack)\
**Replies:** 15\
**Last updated:** [18 October 2022 08:31 UTC](https://discourse.nodered.org/t/running-node-red-on-a-webserver-instead-of-a-local-computer/68920 "2022-10-18T08:31:29Z")

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Hello everyone, Ive searched for this but only come up with solutions to problems. so sorry if this is a silly question. some here know im making a dashboard for running my brewing system. when complete i have to wor…

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## [Node-red-node-ui-table pdf download is missing the Group count](https://discourse.nodered.org/t/node-red-node-ui-table-pdf-download-is-missing-the-group-count/69015)

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**Author:** [@akd02](https://discourse.nodered.org/u/akd02)\
**Replies:** 6\
**Last updated:** [18 October 2022 07:47 UTC](https://discourse.nodered.org/t/node-red-node-ui-table-pdf-download-is-missing-the-group-count/69015 "2022-10-18T07:47:12Z")

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Hello Everyone, I am using the ui\_table node on a dashboard. all works well, including exporting / downloading a PDF file from the data shown in the table. On the dashbiard itself i can see the count of objects / rows…

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## [System notice 'Connection failed to broker'](https://discourse.nodered.org/t/system-notice-connection-failed-to-broker/69181)

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**Author:** [@donghyeon95](https://discourse.nodered.org/u/donghyeon95)\
**Replies:** 1\
**Last updated:** [18 October 2022 07:46 UTC](https://discourse.nodered.org/t/system-notice-connection-failed-to-broker/69181 "2022-10-18T07:46:57Z")

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Hi there, I am building a vertical farm sensing and control system. The sensor data are gathered into my node-red server through MQTT server (Mosquitto). Recently, console alert 'connection failed to broker' messages…

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## [Editing Query in Sqlite](https://discourse.nodered.org/t/editing-query-in-sqlite/69154)

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**Author:** [@bachloo.rahul](https://discourse.nodered.org/u/bachloo.rahul)\
**Replies:** 0\
**Last updated:** [17 October 2022 15:28 UTC](https://discourse.nodered.org/t/editing-query-in-sqlite/69154 "2022-10-17T15:28:18Z")

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\[ { "id": "b6a400ad4103aa9a", "type": "tab", "label": "Flow 6", "disabled": false, "info": "", "env": \[\] }, { "id": "36a45ee7decc3ea4", "type": …

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## [Query SoC from Volkswagen](https://discourse.nodered.org/t/query-soc-from-volkswagen/69183)

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**Author:** [@Becker](https://discourse.nodered.org/u/Becker)\
**Replies:** 0\
**Last updated:** [18 October 2022 05:43 UTC](https://discourse.nodered.org/t/query-soc-from-volkswagen/69183 "2022-10-18T05:43:22Z")

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Hi, is there already a way to query the SoC in NodeRed ? I´m using openwb with the SoC module "VW ID": Most of the time it works, sometimes it's delayed. You need VIN + WeConnect Account. greetings

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## [Cannot GET /test.txt Why can't my node-red recognize the static file and download it from the browser](https://discourse.nodered.org/t/cannot-get-test-txt-why-cant-my-node-red-recognize-the-static-file-and-download-it-from-the-browser/69147)

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**Author:** [@xiaoye](https://discourse.nodered.org/u/xiaoye)\
**Replies:** 2\
**Last updated:** [18 October 2022 01:08 UTC](https://discourse.nodered.org/t/cannot-get-test-txt-why-cant-my-node-red-recognize-the-static-file-and-download-it-from-the-browser/69147 "2022-10-18T01:08:08Z")

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I've placed a file in Node-red's further directory, for example, it's test.txt, but I can't finish downloading it in the browser via http://localhost:1880/test.txt root@dragino-3e1a15:~/.node-red# ls lib node\_mo…

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## [How to unsubscribe OPC UA nodes?](https://discourse.nodered.org/t/how-to-unsubscribe-opc-ua-nodes/69130)

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**Author:** [@yinjilong](https://discourse.nodered.org/u/yinjilong)\
**Replies:** 2\
**Last updated:** [17 October 2022 14:25 UTC](https://discourse.nodered.org/t/how-to-unsubscribe-opc-ua-nodes/69130 "2022-10-17T14:25:24Z")

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In the following flow, I can subscribe OPC UA nodes without problem. But I don't know how to unsubscribe them. I have tried several methods, but anyone doesn't work. Anyone can help out? Thank you very much. \[ {…

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## [How to get checkbox data in UI?](https://discourse.nodered.org/t/how-to-get-checkbox-data-in-ui/69053)

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**Author:** [@choiprin0310](https://discourse.nodered.org/u/choiprin0310)\
**Replies:** 2\
**Last updated:** [17 October 2022 23:57 UTC](https://discourse.nodered.org/t/how-to-get-checkbox-data-in-ui/69053 "2022-10-17T23:57:08Z")

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I'm trying to get data from checkbox alert in Node-red. Inside the template node, \<!DOCTYPE html\> \<html\> \<head\> \<meta charset="utf-8" /\> \<title\>test\</title\> \<script\> window.onload = function(){ for(var i = 0; i…

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## [\[Solved\] Help with node-red-contrib-ui-ping and node-red-node-ping](https://discourse.nodered.org/t/solved-help-with-node-red-contrib-ui-ping-and-node-red-node-ping/69163)

<div class="topic-metadata">

**Author:** [@My\_Millenium](https://discourse.nodered.org/u/My_Millenium)\
**Replies:** 3\
**Last updated:** [17 October 2022 19:19 UTC](https://discourse.nodered.org/t/solved-help-with-node-red-contrib-ui-ping-and-node-red-node-ping/69163 "2022-10-17T19:19:58Z")

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Hey all, I had Node-Red running on my Synology within a Docker-Container. Due to several reasons I switched the configuration and have now Node-Red running as an adapter within IO-Broker ... But Node-Red is still being …

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## [NBrowser - help](https://discourse.nodered.org/t/nbrowser-help/69144)

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**Author:** [@vantech](https://discourse.nodered.org/u/vantech)\
**Replies:** 4\
**Last updated:** [17 October 2022 18:49 UTC](https://discourse.nodered.org/t/nbrowser-help/69144 "2022-10-17T18:49:19Z")

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Hi, I am trying to use NBrowser, and want to scrape data from webpage which requires a login. Does anyone have any config flows they can share to get me started? I have downloaded NBrowser and Credentials, however I a…

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