# Latest

**URL:** https://discourse.nodered.org/latest.md?page=1112

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

**Page:** 1113

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## [Playing a .mp3 flie](https://discourse.nodered.org/t/playing-a-mp3-flie/18030)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 30\
**Last updated:** [19 April 2020 16:19 UTC](https://discourse.nodered.org/t/playing-a-mp3-flie/18030 "2020-04-19T16:19:10Z")

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I've read a few posts about playing MP3 files and that browsers are blocking sounds. Taking that on, I decided to try another way but still to no avail. Ubuntu. NR 0.20.5 Putting aside the nodes to play sounds, I dec…

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## [How to play a sound?](https://discourse.nodered.org/t/how-to-play-a-sound/14509)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 24\
**Last updated:** [19 April 2020 15:46 UTC](https://discourse.nodered.org/t/how-to-play-a-sound/14509 "2020-04-19T15:46:43Z")

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I am wanting to play a sound (MP3) on a ubuntu machine. I have got 3 nodes but can't get any of them to work. Say the file is called "sound.mp3". It can be where ever you want. How would I got it to play when I send…

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## [Trigger Node RED flows from javascript](https://discourse.nodered.org/t/trigger-node-red-flows-from-javascript/25130)

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**Author:** [@anilkamaraju](https://discourse.nodered.org/u/anilkamaraju)\
**Replies:** 2\
**Last updated:** [19 April 2020 15:44 UTC](https://discourse.nodered.org/t/trigger-node-red-flows-from-javascript/25130 "2020-04-19T15:44:52Z")

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I need to develop a few Node-RED flows, but don't want to expose the flow diagrams on UI to the users rather I need to trigger the created flows using any kind of language like Javascript/Node JS/ Java. Please let me kn…

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## [Calculate hourly consumption](https://discourse.nodered.org/t/calculate-hourly-consumption/25035)

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**Author:** [@Mrfox](https://discourse.nodered.org/u/Mrfox)\
**Replies:** 17\
**Last updated:** [19 April 2020 15:26 UTC](https://discourse.nodered.org/t/calculate-hourly-consumption/25035 "2020-04-19T15:26:37Z")

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Hi, I am using Influxdb together with Node Red and Grafana for presentation of power consumption. Works fine. Now I want to take the next step and present the energy consumption. Via Node Red I get continous readings fro…

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## [\[ANNOUNCE\] node-red-contrib-sony-audio 1.5.0 released](https://discourse.nodered.org/t/announce-node-red-contrib-sony-audio-1-5-0-released/25121)

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**Author:** [@jens\_rossbach](https://discourse.nodered.org/u/jens_rossbach)\
**Replies:** 0\
**Last updated:** [19 April 2020 10:04 UTC](https://discourse.nodered.org/t/announce-node-red-contrib-sony-audio-1-5-0-released/25121 "2020-04-19T10:04:17Z")

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Hi all, version 1.5.0 of node-red-contrib-sony-audio has been released. A simpler alternative payload format has been introduced for setVolume commands. Additionally the device discovery now also provides the model nam…

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## [CSS School, buttons and things not making sense](https://discourse.nodered.org/t/css-school-buttons-and-things-not-making-sense/24986)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 43\
**Last updated:** [19 April 2020 09:52 UTC](https://discourse.nodered.org/t/css-school-buttons-and-things-not-making-sense/24986 "2020-04-19T09:52:57Z")

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I am not wanting to post multiple topics on the same problem. But where I am: I am confused with the stuff at Buttons. Yeah, it isn't this forum's concern. I'm asking because rather than join their forum and have to i…

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## [Node-red-contrib-nora thermostatTemperatureRange](https://discourse.nodered.org/t/node-red-contrib-nora-thermostattemperaturerange/25120)

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**Author:** [@Csstenersen](https://discourse.nodered.org/u/Csstenersen)\
**Replies:** 0\
**Last updated:** [19 April 2020 09:52 UTC](https://discourse.nodered.org/t/node-red-contrib-nora-thermostattemperaturerange/25120 "2020-04-19T09:52:34Z")

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Has anyone implemented thermostatTemperatureRange for the thermostat node? I use this node in my KNX installation at my home and I have a KNX thermostat that I would like to control with the Nora thermostat node. This …

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## [Express an html document in a node-red ui window](https://discourse.nodered.org/t/express-an-html-document-in-a-node-red-ui-window/25118)

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**Author:** [@newsky40](https://discourse.nodered.org/u/newsky40)\
**Replies:** 1\
**Last updated:** [19 April 2020 09:22 UTC](https://discourse.nodered.org/t/express-an-html-document-in-a-node-red-ui-window/25118 "2020-04-19T09:22:23Z")

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I want to create a small window inside a node-red ui window to represent the html document. For example, how can I open a google page inside a node-red ui window without opening another window? Thank you.

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## [Need help with restart](https://discourse.nodered.org/t/need-help-with-restart/25060)

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**Author:** [@Jacopos94](https://discourse.nodered.org/u/Jacopos94)\
**Replies:** 7\
**Last updated:** [19 April 2020 08:57 UTC](https://discourse.nodered.org/t/need-help-with-restart/25060 "2020-04-19T08:57:27Z")

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hi, i recently started using nodered to automate the transitions from different harmony scenes when turning on different inputs for my tv ( ex if i ask alexa to turn off the pc it runs a mqtt command to send a shutdown t…

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## [Web-App Site-Control](https://discourse.nodered.org/t/web-app-site-control/25115)

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**Author:** [@rwblinn](https://discourse.nodered.org/u/rwblinn)\
**Replies:** 0\
**Last updated:** [19 April 2020 07:25 UTC](https://discourse.nodered.org/t/web-app-site-control/25115 "2020-04-19T07:25:17Z")

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A tailor made Home Automation & Information System with a WebUI for use with smartphones. Purpose To create a Home Automation & Information System, running on a Raspberry Pi 3B+, accessible via a browser-based applic…

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## [\[ANNOUNCE\] node-red-contrib-ui-web-push: beta version](https://discourse.nodered.org/t/announce-node-red-contrib-ui-web-push-beta-version/24553)

<div class="topic-metadata">

**Author:** [@BartButenaers](https://discourse.nodered.org/u/BartButenaers)\
**Replies:** 86\
**Last updated:** [19 April 2020 06:53 UTC](https://discourse.nodered.org/t/announce-node-red-contrib-ui-web-push-beta-version/24553 "2020-04-19T06:53:37Z")

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Hi folks, I am using Telegram already a couple of years, to allow my Node-RED system to send notifications to my Android smartphone. And although Telegram works very good, I have always wanted to have a 100% Node-RED s…

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## [Customizing charts with CSS.....or HTML](https://discourse.nodered.org/t/customizing-charts-with-css-or-html/25109)

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**Author:** [@Hawk](https://discourse.nodered.org/u/Hawk)\
**Replies:** 0\
**Last updated:** [19 April 2020 04:46 UTC](https://discourse.nodered.org/t/customizing-charts-with-css-or-html/25109 "2020-04-19T04:46:01Z")

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Hello everyone, About 6am and i have been working on this all night so please excuse me if i am being too blunt as my brain is slowly shutting down at the same time as its about to explode. I am new to Node-Red that i …

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## [Live Event Viewer in Dashboard](https://discourse.nodered.org/t/live-event-viewer-in-dashboard/24252)

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**Author:** [@I\_iam](https://discourse.nodered.org/u/I_iam)\
**Replies:** 3\
**Last updated:** [19 April 2020 02:55 UTC](https://discourse.nodered.org/t/live-event-viewer-in-dashboard/24252 "2020-04-19T02:55:19Z")

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I would like to cherry pick certain events from my flow to populate an event viewer a in the dashboard (100 lines or so). Can anyone point me in the right direction? Thanks in advance

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## [Node red google home integration](https://discourse.nodered.org/t/node-red-google-home-integration/25104)

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**Author:** [@Auto101](https://discourse.nodered.org/u/Auto101)\
**Replies:** 2\
**Last updated:** [19 April 2020 01:19 UTC](https://discourse.nodered.org/t/node-red-google-home-integration/25104 "2020-04-19T01:19:32Z")

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Hi , I 'm using nora for the google home integration for the flows in node red . Every time I deploy any new flow , I keep getting this message . Anyone know how we can get more details on this . msg : string\[49\] "no…

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## [Asynchronouse mode message send command?](https://discourse.nodered.org/t/asynchronouse-mode-message-send-command/25101)

<div class="topic-metadata">

**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 2\
**Last updated:** [18 April 2020 23:25 UTC](https://discourse.nodered.org/t/asynchronouse-mode-message-send-command/25101 "2020-04-18T23:25:56Z")

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Sorry, but CRAFT has set in. What is the command to asynchronously send a message? node.push? (No I tried that) node.send? (I think I tried that.) Someone - please.

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## [Animation on lcd\\oled](https://discourse.nodered.org/t/animation-on-lcd-oled/25100)

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**Author:** [@lucanatali](https://discourse.nodered.org/u/lucanatali)\
**Replies:** 0\
**Last updated:** [18 April 2020 22:43 UTC](https://discourse.nodered.org/t/animation-on-lcd-oled/25100 "2020-04-18T22:43:19Z")

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I am new to the forum and I have just been studying the software. I would like to run animations on an lcd \\ oled screen using raspberry with arduino and of course node-red. Can anyone help me?

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## [Yes, I know, CSS has been beaten to death, but still can't make it work](https://discourse.nodered.org/t/yes-i-know-css-has-been-beaten-to-death-but-still-cant-make-it-work/25094)

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**Author:** [@shel](https://discourse.nodered.org/u/shel)\
**Replies:** 1\
**Last updated:** [18 April 2020 22:30 UTC](https://discourse.nodered.org/t/yes-i-know-css-has-been-beaten-to-death-but-still-cant-make-it-work/25094 "2020-04-18T22:30:26Z")

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Looked through the forum, went to school at W3 but I can't quite connect the dots. Played for several days and I know there is a style sheet issue but I'm not sure where it goes. Imported all sorts of examples, looked at…

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## [Validating Driveway Sensors](https://discourse.nodered.org/t/validating-driveway-sensors/24989)

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**Author:** [@Randy](https://discourse.nodered.org/u/Randy)\
**Replies:** 4\
**Last updated:** [18 April 2020 22:26 UTC](https://discourse.nodered.org/t/validating-driveway-sensors/24989 "2020-04-18T22:26:02Z")

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I have two staggered IR photobeams across my driveway to detect vehicle direction. This allows lights to turn on when coming home and turn off when leaving. It works great but currently only requires one beam to be broke…

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## [Can not debug locally](https://discourse.nodered.org/t/can-not-debug-locally/25088)

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**Author:** [@Lavhe](https://discourse.nodered.org/u/Lavhe)\
**Replies:** 1\
**Last updated:** [18 April 2020 19:29 UTC](https://discourse.nodered.org/t/can-not-debug-locally/25088 "2020-04-18T19:29:01Z")

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Guys i cloned the repo and it runs fine using grunt dev and i can visit it on localhost:1880 , but when i make any type of changes they dont apply, i cleared my caches and localStorage, i even deleted all content in node…

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## [Flows lost ; where are they gone?](https://discourse.nodered.org/t/flows-lost-where-are-they-gone/15010)

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**Author:** [@mike67](https://discourse.nodered.org/u/mike67)\
**Replies:** 7\
**Last updated:** [2 September 2019 19:07 UTC](https://discourse.nodered.org/t/flows-lost-where-are-they-gone/15010 "2019-09-02T19:07:03Z")

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hello I was working with nodered for some month, and suddenly, my flows have disappeared. It seems that one node or one flow makes node-red crash. I can see it when i run node-red manually. Ok, I can understand this,…

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## [Installing sense-hat palette fails on Windows 10](https://discourse.nodered.org/t/installing-sense-hat-palette-fails-on-windows-10/25055)

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**Author:** [@MoJeeza](https://discourse.nodered.org/u/MoJeeza)\
**Replies:** 2\
**Last updated:** [18 April 2020 17:02 UTC](https://discourse.nodered.org/t/installing-sense-hat-palette-fails-on-windows-10/25055 "2020-04-18T17:02:11Z")

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Installing this palette failed on Windows-10 but worked perfectly on Raspbian-Buster on Raspberry Pi 3b any idea what may the problem be? node-red-node-pi-sense-hat A Node-RED node to interact with a Raspberry Pi Sens…

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## [Can I completely remove a node from the editor?](https://discourse.nodered.org/t/can-i-completely-remove-a-node-from-the-editor/25064)

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**Author:** [@edoardottt](https://discourse.nodered.org/u/edoardottt)\
**Replies:** 16\
**Last updated:** [18 April 2020 16:16 UTC](https://discourse.nodered.org/t/can-i-completely-remove-a-node-from-the-editor/25064 "2020-04-18T16:16:26Z")

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For security reasons, I don't want to give access to the user to use the node exec. Can I set node-red files to not show the exec node? Thanks. I can also accept technical answers...like edit/delete lines of code/files…

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## [Sinage software that works with node-red](https://discourse.nodered.org/t/sinage-software-that-works-with-node-red/25059)

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**Author:** [@mshaz](https://discourse.nodered.org/u/mshaz)\
**Replies:** 3\
**Last updated:** [18 April 2020 16:12 UTC](https://discourse.nodered.org/t/sinage-software-that-works-with-node-red/25059 "2020-04-18T16:12:55Z")

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Hi, Anyone used any Sinage software that works with node-red? Basically I want to trigger certain screen when sensor triggers. I googled and can't really find any. Thank you.

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## [ dashboard size problem](https://discourse.nodered.org/t/dashboard-size-problem/24898)

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**Author:** [@flechg](https://discourse.nodered.org/u/flechg)\
**Replies:** 6\
**Last updated:** [18 April 2020 15:53 UTC](https://discourse.nodered.org/t/dashboard-size-problem/24898 "2020-04-18T15:53:02Z")

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Hello everyone and thank you for welcoming me to your forum. Here is my problem, I'm looking to make a weather dashboard with a raspberry and a 3.5 tft screen on gpio. On the computer the dashboard and good but impossi…

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## [Catching Error Serial Port Node](https://discourse.nodered.org/t/catching-error-serial-port-node/25052)

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**Author:** [@maakhanj](https://discourse.nodered.org/u/maakhanj)\
**Replies:** 4\
**Last updated:** [18 April 2020 14:55 UTC](https://discourse.nodered.org/t/catching-error-serial-port-node/25052 "2020-04-18T14:55:15Z")

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The serial port outputs an error to the debug console as well as node red CLI but is not caught by catch node as indicated. Is there a way to catch errors or may be that I am not doing it the right way. Appreciate any h…

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## [Restoring Commit from Remote](https://discourse.nodered.org/t/restoring-commit-from-remote/25079)

<div class="topic-metadata">

**Author:** [@ad-netafy](https://discourse.nodered.org/u/ad-netafy)\
**Replies:** 2\
**Last updated:** [18 April 2020 14:59 UTC](https://discourse.nodered.org/t/restoring-commit-from-remote/25079 "2020-04-18T14:59:58Z")

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Hey everyone, I have Node-RED projects set up and I am committing my work to my GirHub repositories. I feel like I may be missing something- How can I restore a previous commit from my remote repository? Should be able…

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## [Several key/values in the smooth node](https://discourse.nodered.org/t/several-key-values-in-the-smooth-node/25077)

<div class="topic-metadata">

**Author:** [@tobiasselin](https://discourse.nodered.org/u/tobiasselin)\
**Replies:** 0\
**Last updated:** [18 April 2020 14:36 UTC](https://discourse.nodered.org/t/several-key-values-in-the-smooth-node/25077 "2020-04-18T14:36:31Z")

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If I send a number of messages with payload e.g {a:x, b:y} through a smooth node and let it pick max or min of a, is it possible to include the related b value in the message that is sent out? I can only get the b value …

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## [Problems with heater relay control](https://discourse.nodered.org/t/problems-with-heater-relay-control/25047)

<div class="topic-metadata">

**Author:** [@deanfourie](https://discourse.nodered.org/u/deanfourie)\
**Replies:** 2\
**Last updated:** [18 April 2020 13:11 UTC](https://discourse.nodered.org/t/problems-with-heater-relay-control/25047 "2020-04-18T13:11:47Z")

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Hey guys! New to node-red and im trying a new project using heater-control plugin. I am trying to trigger my relay using the output topic currentHeaterStatus to a RPI GPIO pin with relay attached. My flow is attached be…

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## [Modbus RTU Serial Reading Coils failed](https://discourse.nodered.org/t/modbus-rtu-serial-reading-coils-failed/25071)

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**Author:** [@jsail](https://discourse.nodered.org/u/jsail)\
**Replies:** 0\
**Last updated:** [18 April 2020 12:50 UTC](https://discourse.nodered.org/t/modbus-rtu-serial-reading-coils-failed/25071 "2020-04-18T12:50:13Z")

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I can not get the values of the coils in address (0:65535). The device is a powermeter. I need the value in address 240. The FC1 'Read Coil Status' does not give me any value back. Using my Modbus CMD Tool, I have to us…

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## [\[ANNOUNCE\] node-red-contrib-acme-client : early alpha version](https://discourse.nodered.org/t/announce-node-red-contrib-acme-client-early-alpha-version/24983)

<div class="topic-metadata">

**Author:** [@BartButenaers](https://discourse.nodered.org/u/BartButenaers)\
**Replies:** 7\
**Last updated:** [18 April 2020 12:21 UTC](https://discourse.nodered.org/t/announce-node-red-contrib-acme-client-early-alpha-version/24983 "2020-04-18T12:21:11Z")

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Hi folks, For my previous node-red-contrib-ui-web-push node, Chrome requires me to have an SSL connection to Node-RED with a trusted certificate. So I really needed to use LetsEncrypt, to have free trusted certificates…

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