# Latest

**URL:** https://discourse.nodered.org/latest.md?page=1226

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

**Page:** 1227

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## [\`ui\_level\` node. Not really \*working\*](https://discourse.nodered.org/t/ui-level-node-not-really-working/15642)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 4\
**Last updated:** [20 September 2019 23:04 UTC](https://discourse.nodered.org/t/ui-level-node-not-really-working/15642 "2019-09-20T23:04:16Z")

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Although I have previously complained about it and so on. I have now reinstalled the latest version to server a purpose. Monitor usage of a USB stick. This is the flow - basically. \[{"id":"e39cfe2.e1d558","type":"fu…

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## [Raspberry PI 4 GPIO](https://discourse.nodered.org/t/raspberry-pi-4-gpio/13904)

<div class="topic-metadata">

**Author:** [@rjandsam](https://discourse.nodered.org/u/rjandsam)\
**Replies:** 25\
**Last updated:** [20 September 2019 22:29 UTC](https://discourse.nodered.org/t/raspberry-pi-4-gpio/13904 "2019-09-20T22:29:11Z")

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Hi is there a way to access the extra GPIO 0 and 1 on the PI 4 as in the list pin 27 and 28 are not configurable as outputs? Thanks Rich

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## [Catch Error Node Question](https://discourse.nodered.org/t/catch-error-node-question/15694)

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**Author:** [@tree-frog](https://discourse.nodered.org/u/tree-frog)\
**Replies:** 12\
**Last updated:** [20 September 2019 21:09 UTC](https://discourse.nodered.org/t/catch-error-node-question/15694 "2019-09-20T21:09:29Z")

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I'm using node-red-contrib-pccc, allen bradley PLC Communication node. I have been working and testing with the contributors. I think we have a resolution to a larger problem that was keeping the system from responding…

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## [Msg.payload string in grey](https://discourse.nodered.org/t/msg-payload-string-in-grey/15728)

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**Author:** [@mike829](https://discourse.nodered.org/u/mike829)\
**Replies:** 5\
**Last updated:** [20 September 2019 18:18 UTC](https://discourse.nodered.org/t/msg-payload-string-in-grey/15728 "2019-09-20T18:18:36Z")

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Hello Everybody, maybe this is a stupid question but I didn't find documents about the payload as in the picture. I would like to understand what is it.. Can you help me?

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## [Append to Evernote from Node Red](https://discourse.nodered.org/t/append-to-evernote-from-node-red/15726)

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**Author:** [@m\_elias](https://discourse.nodered.org/u/m_elias)\
**Replies:** 2\
**Last updated:** [20 September 2019 18:11 UTC](https://discourse.nodered.org/t/append-to-evernote-from-node-red/15726 "2019-09-20T18:11:47Z")

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I've been able to append to a note in Evernote from Node Red via an IFTTT Webhook-\>Evernote applet but yesterday the IFTTT Maker Webhook service went down for a period of time so now I'm looking for something more robust…

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## [Modbus - Power Supply Unit](https://discourse.nodered.org/t/modbus-power-supply-unit/1572)

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**Author:** [@Andrei](https://discourse.nodered.org/u/Andrei)\
**Replies:** 12\
**Last updated:** [20 September 2019 15:48 UTC](https://discourse.nodered.org/t/modbus-power-supply-unit/1572 "2019-09-20T15:48:17Z")

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I wanted to experiment Node-RED with some device using Modbus. I already worked with many different types of interfaces but never did a project with Modbus protocol. It happens that my electronic bench power supply has a…

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## [Error in read modbus data](https://discourse.nodered.org/t/error-in-read-modbus-data/15721)

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**Author:** [@chirag](https://discourse.nodered.org/u/chirag)\
**Replies:** 1\
**Last updated:** [20 September 2019 11:48 UTC](https://discourse.nodered.org/t/error-in-read-modbus-data/15721 "2019-09-20T11:48:46Z")

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i read the data using node-red-contrib-modbus and it is working. but after any change in flow(deploy) its not working and showing error Error: Cannot find module 'fs-extra'. after restart the node-red it will work. pl…

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## [How to display various types of charts like bar chart, line chart, scatter etc](https://discourse.nodered.org/t/how-to-display-various-types-of-charts-like-bar-chart-line-chart-scatter-etc/15718)

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**Author:** [@Sanketp](https://discourse.nodered.org/u/Sanketp)\
**Replies:** 2\
**Last updated:** [20 September 2019 11:39 UTC](https://discourse.nodered.org/t/how-to-display-various-types-of-charts-like-bar-chart-line-chart-scatter-etc/15718 "2019-09-20T11:39:15Z")

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displaying various types of charts like bar chart, line chart, scatter etc

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## [Projects - per project settings.js](https://discourse.nodered.org/t/projects-per-project-settings-js/15707)

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**Author:** [@snicho99](https://discourse.nodered.org/u/snicho99)\
**Replies:** 8\
**Last updated:** [20 September 2019 11:37 UTC](https://discourse.nodered.org/t/projects-per-project-settings-js/15707 "2019-09-20T11:37:15Z")

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Hi there, I'm loving the projects feature, really makes it easier to collaborate on things and beats the hell out of trying to diff the flows.json file. Big question though - how do I set per project node-red settings?…

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## [How to send payload for each iteration (function node) a payload to MQTT node?](https://discourse.nodered.org/t/how-to-send-payload-for-each-iteration-function-node-a-payload-to-mqtt-node/15715)

<div class="topic-metadata">

**Author:** [@WhiteLion](https://discourse.nodered.org/u/WhiteLion)\
**Replies:** 3\
**Last updated:** [20 September 2019 11:28 UTC](https://discourse.nodered.org/t/how-to-send-payload-for-each-iteration-function-node-a-payload-to-mqtt-node/15715 "2019-09-20T11:28:41Z")

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hello firends, this is my function: var LastCommands = msg.payload.split('\\n') global.set("LastCommands", LastCommands); LastCommands.forEach(function(command) { // send each "command" with 250ms delay to MQTT node …

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## [Past project "use your clever"](https://discourse.nodered.org/t/past-project-use-your-clever/15719)

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**Author:** [@snicho99](https://discourse.nodered.org/u/snicho99)\
**Replies:** 1\
**Last updated:** [20 September 2019 11:22 UTC](https://discourse.nodered.org/t/past-project-use-your-clever/15719 "2019-09-20T11:22:11Z")

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Hi gang New to the boards, but been using node-red a couple of years. Thought I might share some of the things I've made with it, starting with this project I made for a local university. It's called "use your clever". …

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## [If Else Problem](https://discourse.nodered.org/t/if-else-problem/15709)

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**Author:** [@hikmet](https://discourse.nodered.org/u/hikmet)\
**Replies:** 14\
**Last updated:** [20 September 2019 11:13 UTC](https://discourse.nodered.org/t/if-else-problem/15709 "2019-09-20T11:13:10Z")

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Hi, This problem can be very simple for you. But I couldn't. var gelen = msg.payload; var son =flow.get('son'); if (gelen == son) {msg.payload = " No Action "} else {msg.payload =" Write DB "} flow.set('son',gelen); …

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## ['Save to file' node problem](https://discourse.nodered.org/t/save-to-file-node-problem/15612)

<div class="topic-metadata">

**Author:** [@ferfersan6](https://discourse.nodered.org/u/ferfersan6)\
**Replies:** 5\
**Last updated:** [20 September 2019 08:21 UTC](https://discourse.nodered.org/t/save-to-file-node-problem/15612 "2019-09-20T08:21:58Z")

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Hello! It may be a stupid question, but I am very newbie with Node-Red. I am using Node-Red online, I mean, with my internet browser (so I don't have it installed). The thing is that when I use the 'Save to file' node, I…

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## [Node-red with Redis](https://discourse.nodered.org/t/node-red-with-redis/15685)

<div class="topic-metadata">

**Author:** [@Sanjaycoder-r](https://discourse.nodered.org/u/Sanjaycoder-r)\
**Replies:** 3\
**Last updated:** [20 September 2019 07:26 UTC](https://discourse.nodered.org/t/node-red-with-redis/15685 "2019-09-20T07:26:09Z")

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I am using the following command to get the data hget '0000f8f005f16885' 'InBound' from redis. In node-red node-red-contrib-redis node, I'm using for fetching data but it is returning null. \[{"id":"654f64e3.7875dc","t…

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## [What resets global variables to "undefined"](https://discourse.nodered.org/t/what-resets-global-variables-to-undefined/15700)

<div class="topic-metadata">

**Author:** [@sallen135](https://discourse.nodered.org/u/sallen135)\
**Replies:** 2\
**Last updated:** [19 September 2019 20:13 UTC](https://discourse.nodered.org/t/what-resets-global-variables-to-undefined/15700 "2019-09-19T20:13:32Z")

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I am trying to understand what causes global variables to be reset. I feel like most times I hit deploy it does not reset them, but sometimes when I deploy all get set to undefined. The background to this questions is I…

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## [Need help getting daily peaks from mysql](https://discourse.nodered.org/t/need-help-getting-daily-peaks-from-mysql/15695)

<div class="topic-metadata">

**Author:** [@Masterkey12](https://discourse.nodered.org/u/Masterkey12)\
**Replies:** 3\
**Last updated:** [19 September 2019 15:13 UTC](https://discourse.nodered.org/t/need-help-getting-daily-peaks-from-mysql/15695 "2019-09-19T15:13:10Z")

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how to check the data coming from the mysql database and analyze them using node red while establishing daily peaks corresponding to the type of ph collected

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## [Node-red-contrib-do-red](https://discourse.nodered.org/t/node-red-contrib-do-red/13947)

<div class="topic-metadata">

**Author:** [@cymplecy](https://discourse.nodered.org/u/cymplecy)\
**Replies:** 4\
**Last updated:** [19 September 2019 14:04 UTC](https://discourse.nodered.org/t/node-red-contrib-do-red/13947 "2019-09-19T14:04:52Z")

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This looks an interesting idea - can't think of anything I could use it for at moment but handy to know its available Just noticed it doesn't follow the naming convention though

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## [Adding or removing a palette causing ALL palettes to disappear](https://discourse.nodered.org/t/adding-or-removing-a-palette-causing-all-palettes-to-disappear/15671)

<div class="topic-metadata">

**Author:** [@danodemano](https://discourse.nodered.org/u/danodemano)\
**Replies:** 19\
**Last updated:** [19 September 2019 13:54 UTC](https://discourse.nodered.org/t/adding-or-removing-a-palette-causing-all-palettes-to-disappear/15671 "2019-09-19T13:54:03Z")

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I'm having an issue. I need to remove a palette and add in another one. However, when I initiate the removal it seems to work as expected. When I reload NR though ALL my installed palettes are gone with only the defau…

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## [How to use hget command in node-red using node-red-contrib-redis node](https://discourse.nodered.org/t/how-to-use-hget-command-in-node-red-using-node-red-contrib-redis-node/15687)

<div class="topic-metadata">

**Author:** [@Sanjaycoder-r](https://discourse.nodered.org/u/Sanjaycoder-r)\
**Replies:** 2\
**Last updated:** [19 September 2019 10:15 UTC](https://discourse.nodered.org/t/how-to-use-hget-command-in-node-red-using-node-red-contrib-redis-node/15687 "2019-09-19T10:15:34Z")

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I am using the following command to get the data hget '0000f8f005f16885' 'InBound' from redis. In node-red node-red-contrib-redis node I'm using for fecthing data but it is returning null. \[{"id":"654f64e3.7875dc","typ…

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## [VLC video on dashboard](https://discourse.nodered.org/t/vlc-video-on-dashboard/1239)

<div class="topic-metadata">

**Author:** [@mshaz](https://discourse.nodered.org/u/mshaz)\
**Replies:** 43\
**Last updated:** [19 September 2019 09:39 UTC](https://discourse.nodered.org/t/vlc-video-on-dashboard/1239 "2019-09-19T09:39:29Z")

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Hi, I managed to stream video as in this tutorial. How do i get it on nodered dashboard? I can’t run on browser http://localhost:8160. I can run view from other vlc player on my windows 10. https://platypus-boats.readt…

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## [Node-red in workplace. What are you using it for?](https://discourse.nodered.org/t/node-red-in-workplace-what-are-you-using-it-for/15367)

<div class="topic-metadata">

**Author:** [@paulohlp](https://discourse.nodered.org/u/paulohlp)\
**Replies:** 36\
**Last updated:** [19 September 2019 07:19 UTC](https://discourse.nodered.org/t/node-red-in-workplace-what-are-you-using-it-for/15367 "2019-09-19T07:19:23Z")

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I would like to know your uses of node-red and share what I’m doing with this amazing tool. What are you using it for? This topic is more like a love story than something useful. And I believe that knowing what are you…

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## [Modbus - Reading dozens of non-contiguous addresses](https://discourse.nodered.org/t/modbus-reading-dozens-of-non-contiguous-addresses/3722)

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**Author:** [@dbainbridge](https://discourse.nodered.org/u/dbainbridge)\
**Replies:** 3\
**Last updated:** [19 September 2019 03:31 UTC](https://discourse.nodered.org/t/modbus-reading-dozens-of-non-contiguous-addresses/3722 "2019-09-19T03:31:12Z")

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I will need to read dozens of non-contiguous modbus addresses and making dozens of different modbus read nodes does not make sense. Is there a better way to do this?

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## [Node-red-contrib-usbhid not building on Raspberry Pi v1](https://discourse.nodered.org/t/node-red-contrib-usbhid-not-building-on-raspberry-pi-v1/9133)

<div class="topic-metadata">

**Author:** [@Fergal](https://discourse.nodered.org/u/Fergal)\
**Replies:** 2\
**Last updated:** [19 September 2019 00:09 UTC](https://discourse.nodered.org/t/node-red-contrib-usbhid-not-building-on-raspberry-pi-v1/9133 "2019-09-19T00:09:45Z")

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Hi I'm working on a project using an old Raspberry Pi (Model B v1.2) connected to a Magtek usb swipe card reader. Currently, I have a python script to send the data from the card reader via HTTP post to my Node Red flow…

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## [Exec Node to start Python Script - permission error](https://discourse.nodered.org/t/exec-node-to-start-python-script-permission-error/15638)

<div class="topic-metadata">

**Author:** [@GRitchie1](https://discourse.nodered.org/u/GRitchie1)\
**Replies:** 10\
**Last updated:** [18 September 2019 20:59 UTC](https://discourse.nodered.org/t/exec-node-to-start-python-script-permission-error/15638 "2019-09-18T20:59:58Z")

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Hi, I'm trying to write to a .txt file from a python script, then use node red to read the contents of the file. The issue I'm having is running the python script from the Exec node. It appears to run the script but i…

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## [Omxplayer need help to play sounds on raspi](https://discourse.nodered.org/t/omxplayer-need-help-to-play-sounds-on-raspi/15643)

<div class="topic-metadata">

**Author:** [@WhiteLion](https://discourse.nodered.org/u/WhiteLion)\
**Replies:** 34\
**Last updated:** [18 September 2019 16:47 UTC](https://discourse.nodered.org/t/omxplayer-need-help-to-play-sounds-on-raspi/15643 "2019-09-18T16:47:29Z")

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I found the omxplayer node and try to use it without success. Console cmd "omxplayer -p -o local /home/pi/Desktop/lassedenken.mp3" works. My flow doesn´t work and is probably (lag of documentation) wrong: \[ { …

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## [Different break conditions in a for loop](https://discourse.nodered.org/t/different-break-conditions-in-a-for-loop/15658)

<div class="topic-metadata">

**Author:** [@tobiasselin](https://discourse.nodered.org/u/tobiasselin)\
**Replies:** 4\
**Last updated:** [18 September 2019 16:09 UTC](https://discourse.nodered.org/t/different-break-conditions-in-a-for-loop/15658 "2019-09-18T16:09:25Z")

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I've been googling around a bit as I would like to break a loop with two different conditions. Haven't found anything useful so I will try here. I'm not after a complete solution, just a general approach. At the moment …

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## [Alexa on raspberry pi with node red](https://discourse.nodered.org/t/alexa-on-raspberry-pi-with-node-red/15663)

<div class="topic-metadata">

**Author:** [@maku12](https://discourse.nodered.org/u/maku12)\
**Replies:** 1\
**Last updated:** [18 September 2019 14:46 UTC](https://discourse.nodered.org/t/alexa-on-raspberry-pi-with-node-red/15663 "2019-09-18T14:46:04Z")

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Hi, i have installed alexa ( https://github.com/alexa/avs-device-sdk/wiki/Raspberry-Pi-Quick-Start-Guide-with-Script ) on my raspberry pi. I saw, there are also alexa nodes in node red pallette available. Can I configu…

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## [Rules node Variable is name value](https://discourse.nodered.org/t/rules-node-variable-is-name-value/15659)

<div class="topic-metadata">

**Author:** [@lastm4n](https://discourse.nodered.org/u/lastm4n)\
**Replies:** 3\
**Last updated:** [18 September 2019 14:00 UTC](https://discourse.nodered.org/t/rules-node-variable-is-name-value/15659 "2019-09-18T14:00:11Z")

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Hello community, I have one question. Lets say i have in chat context one variable with name count and value 2. So if i use : let chat =msg.chat(); chat.set('count', 2); let count = chat.get('count'); //I will get…

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## [Node-red-node-email: set ReplyTo address](https://discourse.nodered.org/t/node-red-node-email-set-replyto-address/15661)

<div class="topic-metadata">

**Author:** [@EZS-JD](https://discourse.nodered.org/u/EZS-JD)\
**Replies:** 1\
**Last updated:** [18 September 2019 13:55 UTC](https://discourse.nodered.org/t/node-red-node-email-set-replyto-address/15661 "2019-09-18T13:55:55Z")

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This is a feature request: I'd like to see the possibility to add a ReplyTo address to an outgoing email using node-red-node-email. If I understand correctly this is part of the email header parameters, which currently …

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## [Control via Messages in UI-SVG](https://discourse.nodered.org/t/control-via-messages-in-ui-svg/15654)

<div class="topic-metadata">

**Author:** [@ChrisO](https://discourse.nodered.org/u/ChrisO)\
**Replies:** 7\
**Last updated:** [18 September 2019 09:57 UTC](https://discourse.nodered.org/t/control-via-messages-in-ui-svg/15654 "2019-09-18T09:57:57Z")

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Hi all Trying to follow the examples given in the readme here Assuming that I have correctly installed the dev branch - used: npm install bartbutenaers/node-red-contrib-ui-svg#dev got node-red-contrib-ui-svg@1.0.0 …

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