# Latest

**URL:** https://discourse.nodered.org/latest.md?page=1233

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

**Page:** 1234

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## [Wmbus cul node red](https://discourse.nodered.org/t/wmbus-cul-node-red/14819)

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**Author:** [@smp](https://discourse.nodered.org/u/smp)\
**Replies:** 7\
**Last updated:** [5 September 2019 09:41 UTC](https://discourse.nodered.org/t/wmbus-cul-node-red/14819 "2019-09-05T09:41:48Z")

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hi, is it easy to connect a cul and a wmbus device in node red ?

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## [Another machine won't update NR when I run the command](https://discourse.nodered.org/t/another-machine-wont-update-nr-when-i-run-the-command/14997)

<div class="topic-metadata">

**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 37\
**Last updated:** [5 September 2019 02:08 UTC](https://discourse.nodered.org/t/another-machine-wont-update-nr-when-i-run-the-command/14997 "2019-09-05T02:08:18Z")

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This is another machine - than the other thread I have. Another machine is/was/still is giving me grief. It isn't coming online when it boots. So I try to look at the NR edit screen. Won't load. SSH into it and it …

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## [\[Version 1.0.0-beta.3\] Cannot read property 'replace' of undefined](https://discourse.nodered.org/t/version-1-0-0-beta-3-cannot-read-property-replace-of-undefined/15095)

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**Author:** [@Qin](https://discourse.nodered.org/u/Qin)\
**Replies:** 2\
**Last updated:** [5 September 2019 01:16 UTC](https://discourse.nodered.org/t/version-1-0-0-beta-3-cannot-read-property-replace-of-undefined/15095 "2019-09-05T01:16:42Z")

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After updating version from 0.20.\* to 1.0.0-beta.3, following statement throw the error as title describe, but var patt = /\\B\\$/g; var Str = '$test'; Str.replace (patt, 'A.B.'); actually it's OK IN 0.20.\*

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## [Dashboard filename path](https://discourse.nodered.org/t/dashboard-filename-path/15111)

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**Author:** [@Ahmed\_elkomya](https://discourse.nodered.org/u/Ahmed_elkomya)\
**Replies:** 8\
**Last updated:** [5 September 2019 00:22 UTC](https://discourse.nodered.org/t/dashboard-filename-path/15111 "2019-09-05T00:22:34Z")

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Hi, Raspberry pi , dashboard problem I have some problem with UI , one or two employee can access the UI .they Fills the entire data for each trainee and save it as file.txt like \[name,age,Gender...etc\] so, the data o…

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## [Error in connection with MongoDB](https://discourse.nodered.org/t/error-in-connection-with-mongodb/7239)

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**Author:** [@Rahul\_Mathavan](https://discourse.nodered.org/u/Rahul_Mathavan)\
**Replies:** 3\
**Last updated:** [4 September 2019 23:54 UTC](https://discourse.nodered.org/t/error-in-connection-with-mongodb/7239 "2019-09-04T23:54:10Z")

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This is the method i have tried to implement the MongoDB. it shows the error as "MongoError: failed to connect to server \[127.0.0.1:27017\] on first connect \[MongoError: connect ECONNREFUSED 127.0.0.1:27017\]" I canno…

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## [Create a bot and deploy it on a website](https://discourse.nodered.org/t/create-a-bot-and-deploy-it-on-a-website/15115)

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**Author:** [@manfredsovi](https://discourse.nodered.org/u/manfredsovi)\
**Replies:** 2\
**Last updated:** [4 September 2019 21:32 UTC](https://discourse.nodered.org/t/create-a-bot-and-deploy-it-on-a-website/15115 "2019-09-04T21:32:02Z")

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Hello everyone I would like to know if it is possible to create a robot and deployed on a website to interact with users.

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## [iPad Camera to Raspberry Pi to Azure Blob](https://discourse.nodered.org/t/ipad-camera-to-raspberry-pi-to-azure-blob/15120)

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**Author:** [@awsteve](https://discourse.nodered.org/u/awsteve)\
**Replies:** 0\
**Last updated:** [4 September 2019 18:54 UTC](https://discourse.nodered.org/t/ipad-camera-to-raspberry-pi-to-azure-blob/15120 "2019-09-04T18:54:03Z")

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I want to use a Raspberry Pi 3 B+ to send images taken from an iPad camera to an Azure blob. I have each individual piece working, but am struggling to get the HTML code to work inside the Node-Red dashboard. I created…

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## [Google photos upload doesn't work](https://discourse.nodered.org/t/google-photos-upload-doesnt-work/11297)

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**Author:** [@mike67](https://discourse.nodered.org/u/mike67)\
**Replies:** 2\
**Last updated:** [4 September 2019 19:31 UTC](https://discourse.nodered.org/t/google-photos-upload-doesnt-work/11297 "2019-09-04T19:31:52Z")

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Hello I try to upload an image to google photo using the dedicated node. So, I have an ip camera. From this camera, I can access to a file. I save this file on my node-red host, and i would like to upload this image o…

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## [How Can I Catch Error "serial port /dev/rfcomm0 closed unexpectedly"](https://discourse.nodered.org/t/how-can-i-catch-error-serial-port-dev-rfcomm0-closed-unexpectedly/15038)

<div class="topic-metadata">

**Author:** [@marcpouliot](https://discourse.nodered.org/u/marcpouliot)\
**Replies:** 6\
**Last updated:** [4 September 2019 18:40 UTC](https://discourse.nodered.org/t/how-can-i-catch-error-serial-port-dev-rfcomm0-closed-unexpectedly/15038 "2019-09-04T18:40:09Z")

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Hello, (raspberry pi 2b, node-red v0.19.5) I have a battery operated bluetooth thermometer (testing wine temperature) that I do not use very often... (or too often, I don't know). I switch it off when I do not need i…

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## [Time range switch incorrect date](https://discourse.nodered.org/t/time-range-switch-incorrect-date/15118)

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**Author:** [@Poodlepapa](https://discourse.nodered.org/u/Poodlepapa)\
**Replies:** 3\
**Last updated:** [4 September 2019 18:38 UTC](https://discourse.nodered.org/t/time-range-switch-incorrect-date/15118 "2019-09-04T18:38:09Z")

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I have a flow that is using a time range switch, it almost works but not quite. I think the problem is with the date, it says "invalid date" under the node. I've installed all 3 the dependancies and checked the date an…

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## [Node-Red nodeJS upgrade 8 to 10 or not sometimes](https://discourse.nodered.org/t/node-red-nodejs-upgrade-8-to-10-or-not-sometimes/8103)

<div class="topic-metadata">

**Author:** [@scargill](https://discourse.nodered.org/u/scargill)\
**Replies:** 3\
**Last updated:** [4 September 2019 17:15 UTC](https://discourse.nodered.org/t/node-red-nodejs-upgrade-8-to-10-or-not-sometimes/8103 "2019-09-04T17:15:03Z")

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I know this is likey a daft question but.. I just created a clean Raspbery Pi and used your upgrade script to install Node-Red - it put in NodeJS 10.x But then I tried to use it up upgrade a working (up to date apart f…

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## [Remove the values after fraction](https://discourse.nodered.org/t/remove-the-values-after-fraction/15108)

<div class="topic-metadata">

**Author:** [@Taqi.haider](https://discourse.nodered.org/u/Taqi.haider)\
**Replies:** 5\
**Last updated:** [4 September 2019 15:53 UTC](https://discourse.nodered.org/t/remove-the-values-after-fraction/15108 "2019-09-04T15:53:48Z")

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I have a Real value like this 230.23456789 . I want to remove the values after fraction. Then the result will be shown like this 230.2. How will i have do it.

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## ["Exec" module missing in node-red](https://discourse.nodered.org/t/exec-module-missing-in-node-red/15102)

<div class="topic-metadata">

**Author:** [@freduhr](https://discourse.nodered.org/u/freduhr)\
**Replies:** 3\
**Last updated:** [4 September 2019 15:53 UTC](https://discourse.nodered.org/t/exec-module-missing-in-node-red/15102 "2019-09-04T15:53:24Z")

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Hello everyone, On my node-red installation, I can't find the "exec" module in the "advanced" section, it is missing. Is it possible to manually install this module without having to reinstall node-red? My node-red ve…

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## [Update-nodejs-and-nodered on Raspbian Buster](https://discourse.nodered.org/t/update-nodejs-and-nodered-on-raspbian-buster/12566)

<div class="topic-metadata">

**Author:** [@utaani](https://discourse.nodered.org/u/utaani)\
**Replies:** 19\
**Last updated:** [4 September 2019 14:24 UTC](https://discourse.nodered.org/t/update-nodejs-and-nodered-on-raspbian-buster/12566 "2019-09-04T14:24:31Z")

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After clean install with raspbian 2019-06-20, I try to upgrade with script, then it failed with 'Failed to install Node.js'. After that, I found new script on /usr/bin/update-nodejs-and-nodered , already installed. …

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## [Maximum Insert Speed for mySQL through network?](https://discourse.nodered.org/t/maximum-insert-speed-for-mysql-through-network/14932)

<div class="topic-metadata">

**Author:** [@AK51](https://discourse.nodered.org/u/AK51)\
**Replies:** 33\
**Last updated:** [4 September 2019 13:51 UTC](https://discourse.nodered.org/t/maximum-insert-speed-for-mysql-through-network/14932 "2019-09-04T13:51:05Z")

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My insert speed is 200Hz through local network to a mySQL server. I found out the delay is about 30 seconds.... It seems a lot as the whole things is through Wifi and there are only 4 computers. It shouldn't be the netwo…

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## [Display serial input into debug](https://discourse.nodered.org/t/display-serial-input-into-debug/15079)

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**Author:** [@prince](https://discourse.nodered.org/u/prince)\
**Replies:** 14\
**Last updated:** [4 September 2019 13:19 UTC](https://discourse.nodered.org/t/display-serial-input-into-debug/15079 "2019-09-04T13:19:10Z")

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Hi There, I'm trying to get the serial data send to my hardware in the debug output.I'm not sure whether it will send the data without any function node.below is the flow i have created.Kindly guide me to get serial dat…

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## [Serial Port Disconnection Issues "Input/output error"](https://discourse.nodered.org/t/serial-port-disconnection-issues-input-output-error/15090)

<div class="topic-metadata">

**Author:** [@Testing1User](https://discourse.nodered.org/u/Testing1User)\
**Replies:** 0\
**Last updated:** [4 September 2019 10:32 UTC](https://discourse.nodered.org/t/serial-port-disconnection-issues-input-output-error/15090 "2019-09-04T10:32:54Z")

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Hi, I have 4 serial port inputs using the serial in node. It works fine most of the time but every now and then I get the following error when I deploy my nodes "serial port /dev/ttyUSB0 error: Error: Error: Input/out…

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## [Node-red-contrib-can](https://discourse.nodered.org/t/node-red-contrib-can/15059)

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**Author:** [@Ivan](https://discourse.nodered.org/u/Ivan)\
**Replies:** 3\
**Last updated:** [4 September 2019 08:58 UTC](https://discourse.nodered.org/t/node-red-contrib-can/15059 "2019-09-04T08:58:53Z")

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I installed node-red-contrib-can! Tell me how to use this package? I would be grateful for any example or documentation. Thank!

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## [PIVPN is now maintained again](https://discourse.nodered.org/t/pivpn-is-now-maintained-again/9747)

<div class="topic-metadata">

**Author:** [@ghayne](https://discourse.nodered.org/u/ghayne)\
**Replies:** 27\
**Last updated:** [4 September 2019 08:46 UTC](https://discourse.nodered.org/t/pivpn-is-now-maintained-again/9747 "2019-09-04T08:46:58Z")

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Title says it all really. http://www.pivpn.io/

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## [Node configuration issue](https://discourse.nodered.org/t/node-configuration-issue/14880)

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**Author:** [@hwr7dd](https://discourse.nodered.org/u/hwr7dd)\
**Replies:** 4\
**Last updated:** [4 September 2019 07:51 UTC](https://discourse.nodered.org/t/node-configuration-issue/14880 "2019-09-04T07:51:23Z")

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Hello, I'm a complete noob to node and I'm running into a few basic issues: Right now I am trying to recreate a simple DHT11 sensor flow. When I try to edit the gauge settings it only has limited options. This is what…

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## [Anyone tried traefik & docker node-red instances?](https://discourse.nodered.org/t/anyone-tried-traefik-docker-node-red-instances/15016)

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**Author:** [@luisgcu](https://discourse.nodered.org/u/luisgcu)\
**Replies:** 3\
**Last updated:** [4 September 2019 05:59 UTC](https://discourse.nodered.org/t/anyone-tried-traefik-docker-node-red-instances/15016 "2019-09-04T05:59:50Z")

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I have several Node-red docker instances running in a server and I want to use reverse proxy ( "easy SSL setup ") known as "traefik" to access them with different sub-domains. I tried but can't get that to work , ju…

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## [Node-red-contrib-cron-plus timezone error](https://discourse.nodered.org/t/node-red-contrib-cron-plus-timezone-error/15063)

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**Author:** [@Colin](https://discourse.nodered.org/u/Colin)\
**Replies:** 19\
**Last updated:** [3 September 2019 20:54 UTC](https://discourse.nodered.org/t/node-red-contrib-cron-plus-timezone-error/15063 "2019-09-03T20:54:41Z")

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I am running node-red 0.20.7, nodejs 8.11.2 in Termux on Android. When using node-red-contrib-cron-plus 0.3.0 with the timezone setting empty it shows a status of Error: check timezone setting Though it does appear to…

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## [Logging out of Node-Red authentication](https://discourse.nodered.org/t/logging-out-of-node-red-authentication/15069)

<div class="topic-metadata">

**Author:** [@jmacle](https://discourse.nodered.org/u/jmacle)\
**Replies:** 2\
**Last updated:** [3 September 2019 19:57 UTC](https://discourse.nodered.org/t/logging-out-of-node-red-authentication/15069 "2019-09-03T19:57:08Z")

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Hey there, There maybe a thread explaining but I can't seem to locate it, but I'm looking for a method to logout of node-red's admin authentication without having to wait for the token expiration. Can someone point me t…

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## [Creating a CloudFront Distribution](https://discourse.nodered.org/t/creating-a-cloudfront-distribution/15067)

<div class="topic-metadata">

**Author:** [@jeremyd](https://discourse.nodered.org/u/jeremyd)\
**Replies:** 1\
**Last updated:** [3 September 2019 17:04 UTC](https://discourse.nodered.org/t/creating-a-cloudfront-distribution/15067 "2019-09-03T17:04:53Z")

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Hello, I am wanting to use an AWS CloudFront Distribution as a front to my EC2 instance so I can use the CloudFront SSL to secure API calls. When I create the distribution to my EC2 instance using port 1880 for HTTP and…

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## [More languages supported syntax highlighting in template nodes](https://discourse.nodered.org/t/more-languages-supported-syntax-highlighting-in-template-nodes/15041)

<div class="topic-metadata">

**Author:** [@T0T4R4](https://discourse.nodered.org/u/T0T4R4)\
**Replies:** 22\
**Last updated:** [3 September 2019 15:49 UTC](https://discourse.nodered.org/t/more-languages-supported-syntax-highlighting-in-template-nodes/15041 "2019-09-03T15:49:55Z")

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Would it be possible to have more languages supported in syntax highlight within the template node (Python for example...) ? How could we make this easily configurable ? Thanks !

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## [Dashboard Domain Redirect](https://discourse.nodered.org/t/dashboard-domain-redirect/15046)

<div class="topic-metadata">

**Author:** [@widobsono](https://discourse.nodered.org/u/widobsono)\
**Replies:** 2\
**Last updated:** [3 September 2019 14:56 UTC](https://discourse.nodered.org/t/dashboard-domain-redirect/15046 "2019-09-03T14:56:48Z")

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Dear Good People, Hi guys, so I am curious about a thing (actually a lot). Is it possible to redirect a sub-domain to Node-Red dashboard? Let's say io(dot)abc(dot)com to cover ipadress:1880/ui so people that access the i…

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## [Function to decrypt Base64 data from Node-Red and display on dashboard](https://discourse.nodered.org/t/function-to-decrypt-base64-data-from-node-red-and-display-on-dashboard/14941)

<div class="topic-metadata">

**Author:** [@cherechi](https://discourse.nodered.org/u/cherechi)\
**Replies:** 22\
**Last updated:** [3 September 2019 13:39 UTC](https://discourse.nodered.org/t/function-to-decrypt-base64-data-from-node-red-and-display-on-dashboard/14941 "2019-09-03T13:39:02Z")

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Hello, Please, i am a bit confused on my project now. I am building a Lora communication system for sensor monitoring, I have 2 nodes which have Voltage and Current sensors connected to them at different frequencies. Th…

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## [How to extract a string value](https://discourse.nodered.org/t/how-to-extract-a-string-value/15020)

<div class="topic-metadata">

**Author:** [@mike829](https://discourse.nodered.org/u/mike829)\
**Replies:** 14\
**Last updated:** [3 September 2019 10:30 UTC](https://discourse.nodered.org/t/how-to-extract-a-string-value/15020 "2019-09-03T10:30:54Z")

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Hello Everybody, I am working on a RS485 serial to ifttt project. I receive the string "INPUTSTATUS 0924400005454010004411444100444111447855" and I would like to extract only the second number, in this example "9". I…

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## [RasPi now locks up on NR after updating NR](https://discourse.nodered.org/t/raspi-now-locks-up-on-nr-after-updating-nr/14969)

<div class="topic-metadata">

**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 54\
**Last updated:** [3 September 2019 10:18 UTC](https://discourse.nodered.org/t/raspi-now-locks-up-on-nr-after-updating-nr/14969 "2019-09-03T10:18:18Z")

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I decided to go through and update some machines. Looking at the load: NR is 99% CPU load. Stopping it and starting it again I don't see anything in the output from the CLI. This is what I see when I start NR. pi@Mus…

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## [Alexa controlling device](https://discourse.nodered.org/t/alexa-controlling-device/15042)

<div class="topic-metadata">

**Author:** [@purnima](https://discourse.nodered.org/u/purnima)\
**Replies:** 1\
**Last updated:** [3 September 2019 06:32 UTC](https://discourse.nodered.org/t/alexa-controlling-device/15042 "2019-09-03T06:32:32Z")

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Hii everyone, after so many days ,i started working with alexa. I just want suggestion . I am trying to create a flow in node red with some not real device and want to control those device with the alexa app. if skill i…

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