# Latest

**URL:** https://discourse.nodered.org/latest.md?page=1058

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

**Page:** 1059

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## [Node Red sleeping on OrangePi](https://discourse.nodered.org/t/node-red-sleeping-on-orangepi/29029)

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**Author:** [@a1419797](https://discourse.nodered.org/u/a1419797)\
**Replies:** 5\
**Last updated:** [27 June 2020 03:29 UTC](https://discourse.nodered.org/t/node-red-sleeping-on-orangepi/29029 "2020-06-27T03:29:29Z")

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Hello. Debian + Mosqitto + Node-Red + PM2 is installed on OrangePi and everything works well, MQTT handles Old, Node-Red draws graphs. But it’s worth leaving it overnight and connecting to the Web interface the next day…

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## [Low.js for NR runtime on ESP32](https://discourse.nodered.org/t/low-js-for-nr-runtime-on-esp32/29001)

<div class="topic-metadata">

**Author:** [@Luckyboy](https://discourse.nodered.org/u/Luckyboy)\
**Replies:** 14\
**Last updated:** [27 June 2020 00:07 UTC](https://discourse.nodered.org/t/low-js-for-nr-runtime-on-esp32/29001 "2020-06-27T00:07:38Z")

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Hi, Is it possible to use low.js on esp32 for NR runtime? Thanks!

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## [Dashboard colors don't match the settings](https://discourse.nodered.org/t/dashboard-colors-dont-match-the-settings/28907)

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**Author:** [@bertg](https://discourse.nodered.org/u/bertg)\
**Replies:** 10\
**Last updated:** [26 June 2020 23:24 UTC](https://discourse.nodered.org/t/dashboard-colors-dont-match-the-settings/28907 "2020-06-26T23:24:03Z")

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Hello, I hope you can help me. I've been having trouble setting the node-red-dashboard custom theme colors for some time now. As you can see in the screenshots below, the colors of the dashboard do not match the color…

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## [RPi CPU Temperature monitoring - simple but informative](https://discourse.nodered.org/t/rpi-cpu-temperature-monitoring-simple-but-informative/28540)

<div class="topic-metadata">

**Author:** [@krambriw](https://discourse.nodered.org/u/krambriw)\
**Replies:** 35\
**Last updated:** [26 June 2020 21:31 UTC](https://discourse.nodered.org/t/rpi-cpu-temperature-monitoring-simple-but-informative/28540 "2020-06-26T21:31:14Z")

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I have, just like many of us, several RPi's scattered around. Some are placed outdoor, indoor, in the ground and up in the attic. In total I counted to 10, crazy, really tried to re-think, well some got eventually be mer…

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## [If excel cell value changes, copy value to node red](https://discourse.nodered.org/t/if-excel-cell-value-changes-copy-value-to-node-red/29021)

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**Author:** [@SATHYA\_JAPAN](https://discourse.nodered.org/u/SATHYA_JAPAN)\
**Replies:** 3\
**Last updated:** [26 June 2020 21:26 UTC](https://discourse.nodered.org/t/if-excel-cell-value-changes-copy-value-to-node-red/29021 "2020-06-26T21:26:51Z")

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Hello, I need your advice on below points I want to read the data in cell A1(numeric value) from excel sheet whenever the data in cell A1 has changed , I need to trigger event in Node red and send email notificati…

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## [Moving Flows From One Instance To Another?](https://discourse.nodered.org/t/moving-flows-from-one-instance-to-another/28972)

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**Author:** [@Nodi.Rubrum](https://discourse.nodered.org/u/Nodi.Rubrum)\
**Replies:** 8\
**Last updated:** [26 June 2020 21:21 UTC](https://discourse.nodered.org/t/moving-flows-from-one-instance-to-another/28972 "2020-06-26T21:21:57Z")

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When moving flows from one instance of node-red to another? How do I avoid orphaning the UI elements, dashboard elements. I was doing exports and imports of flows, but I discovered the dashboard elements are orphaned. …

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## [Parsing an object, when part of it isn't "object-y"](https://discourse.nodered.org/t/parsing-an-object-when-part-of-it-isnt-object-y/29043)

<div class="topic-metadata">

**Author:** [@impvan](https://discourse.nodered.org/u/impvan)\
**Replies:** 2\
**Last updated:** [26 June 2020 21:00 UTC](https://discourse.nodered.org/t/parsing-an-object-when-part-of-it-isnt-object-y/29043 "2020-06-26T21:00:07Z")

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Received MQTT message is converted using the JSON node and gives this output: tele/Hetty/SENSOR : msg.payload : Object object Time: "2020-06-26T20:36:58" DS18B20-1: object Id: "030197946C6B" Temperature: 21.…

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## [Pull request proposal - Expand the copy path tooltip to include the path](https://discourse.nodered.org/t/pull-request-proposal-expand-the-copy-path-tooltip-to-include-the-path/29046)

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**Author:** [@ghayne](https://discourse.nodered.org/u/ghayne)\
**Replies:** 2\
**Last updated:** [26 June 2020 20:53 UTC](https://discourse.nodered.org/t/pull-request-proposal-expand-the-copy-path-tooltip-to-include-the-path/29046 "2020-06-26T20:53:01Z")

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I posted a similar suggestion a while back, but got little feedback. Simply expand the Copy Path tooltip to include the path being copied.

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## [Uibuilder : range slider on mobile phone](https://discourse.nodered.org/t/uibuilder-range-slider-on-mobile-phone/28953)

<div class="topic-metadata">

**Author:** [@t\_ho](https://discourse.nodered.org/u/t_ho)\
**Replies:** 11\
**Last updated:** [26 June 2020 19:27 UTC](https://discourse.nodered.org/t/uibuilder-range-slider-on-mobile-phone/28953 "2020-06-26T19:27:50Z")

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I am having an issue using a range slider in uibuilder on a mobile phone. The aim is to change the brightness of an ikea-tradfri-bulb. This is mainly working using a Desktop-Browser or a Nexus-Tablet. It does not work…

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## [Write a Coil in Modbus](https://discourse.nodered.org/t/write-a-coil-in-modbus/29042)

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**Author:** [@jrahumadag](https://discourse.nodered.org/u/jrahumadag)\
**Replies:** 0\
**Last updated:** [26 June 2020 19:33 UTC](https://discourse.nodered.org/t/write-a-coil-in-modbus/29042 "2020-06-26T19:33:57Z")

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Hi, A few words before: I new in Node-Red (and in the world of programming). I'm, doing a little project that consist in to read a Moxa Iologik with AI (4-20mA), DI and DO; then i'm connecting the signals to ubidots. I…

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## [TopTip for new forum users when replying](https://discourse.nodered.org/t/toptip-for-new-forum-users-when-replying/29037)

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**Author:** [@cymplecy](https://discourse.nodered.org/u/cymplecy)\
**Replies:** 1\
**Last updated:** [26 June 2020 15:57 UTC](https://discourse.nodered.org/t/toptip-for-new-forum-users-when-replying/29037 "2020-06-26T15:57:25Z")

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You can click on reply 1 if you want to directly reply to a particular post instead of using the more visible reply 2 button This helps people keep track of who is saying what to whom :slight\_smile:

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## [MQTT. Thingspeak](https://discourse.nodered.org/t/mqtt-thingspeak/28898)

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**Author:** [@Martin10](https://discourse.nodered.org/u/Martin10)\
**Replies:** 17\
**Last updated:** [26 June 2020 15:00 UTC](https://discourse.nodered.org/t/mqtt-thingspeak/28898 "2020-06-26T15:00:59Z")

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Hi. Recently i made a flow, which allow me to sent sensor data to thingspeak via http. But now i try to make a flow to help me sent sensor data to thingspeak via mqtt (mqtt.thingspeak.com). Any help?

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## [Creating dropdown with label:value pair](https://discourse.nodered.org/t/creating-dropdown-with-label-value-pair/29011)

<div class="topic-metadata">

**Author:** [@jmoholth](https://discourse.nodered.org/u/jmoholth)\
**Replies:** 2\
**Last updated:** [26 June 2020 14:45 UTC](https://discourse.nodered.org/t/creating-dropdown-with-label-value-pair/29011 "2020-06-26T14:45:35Z")

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I get a set of id - name pairs from a select statement. The result is in the inject node in the attached nodes. I would like to have a dropdown where the dropdown shows the name and when a name is selected the value sh…

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## [Payload array - how to sort?](https://discourse.nodered.org/t/payload-array-how-to-sort/29018)

<div class="topic-metadata">

**Author:** [@Mckenzi](https://discourse.nodered.org/u/Mckenzi)\
**Replies:** 8\
**Last updated:** [26 June 2020 14:24 UTC](https://discourse.nodered.org/t/payload-array-how-to-sort/29018 "2020-06-26T14:24:32Z")

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I'm looking for a way to play with data from ERP system. Idea is to create a dashboard which shows list of customers and status/qty of orders. I was able to get the data from Excel file to NR. Structure of excel table a…

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## [Node-RED crash.es due to zlib error](https://discourse.nodered.org/t/node-red-crash-es-due-to-zlib-error/29008)

<div class="topic-metadata">

**Author:** [@RogerioCassares](https://discourse.nodered.org/u/RogerioCassares)\
**Replies:** 7\
**Last updated:** [26 June 2020 14:17 UTC](https://discourse.nodered.org/t/node-red-crash-es-due-to-zlib-error/29008 "2020-06-26T14:17:32Z")

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Hi all! For some reason i cannot know why, my node-red instance crashes untipically an the only error i can see at logs are: 24 Jun 04:22:13 - \[red\] Uncaught Exception: 24 Jun 04:22:13 - TypeError: Cannot read propert…

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## [Bad form probably, but is this true about context variables](https://discourse.nodered.org/t/bad-form-probably-but-is-this-true-about-context-variables/29006)

<div class="topic-metadata">

**Author:** [@tmichaeltx](https://discourse.nodered.org/u/tmichaeltx)\
**Replies:** 5\
**Last updated:** [26 June 2020 13:44 UTC](https://discourse.nodered.org/t/bad-form-probably-but-is-this-true-about-context-variables/29006 "2020-06-26T13:44:59Z")

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When I first started to use context variables, I was only saving primitives and so to change them I had sequences like this: flow.set("stored number",1) //other code temp = flow.get("stored number") temp = temp + 1 flow…

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## [AlaSQL working with msg.payload](https://discourse.nodered.org/t/alasql-working-with-msg-payload/28964)

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**Author:** [@mpxd](https://discourse.nodered.org/u/mpxd)\
**Replies:** 18\
**Last updated:** [26 June 2020 13:14 UTC](https://discourse.nodered.org/t/alasql-working-with-msg-payload/28964 "2020-06-26T13:14:51Z")

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Hello there, did anyone here already try to inject a msg.payload into an AlaSQL node ? Excerpt from the documentation: Refer to input data in msg.payload with $0 in your SQL. If msg.payload is an array the first value…

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## [MQTT.FX Thingspeak](https://discourse.nodered.org/t/mqtt-fx-thingspeak/28830)

<div class="topic-metadata">

**Author:** [@Martin10](https://discourse.nodered.org/u/Martin10)\
**Replies:** 12\
**Last updated:** [26 June 2020 12:37 UTC](https://discourse.nodered.org/t/mqtt-fx-thingspeak/28830 "2020-06-26T12:37:21Z")

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I try to do this project, but with DHT sensors, and i've got this error. Any help? https://flows.nodered.org/flow/00e8c4223c3a4e6539b75a7541abfef2 I use MQTT.fx broker (With thingspeak) and all settings (pub/sub) i…

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## [\[ANNOUNCE\] node-red-contrib-ui-svg (beta) : new features](https://discourse.nodered.org/t/announce-node-red-contrib-ui-svg-beta-new-features/28916)

<div class="topic-metadata">

**Author:** [@BartButenaers](https://discourse.nodered.org/u/BartButenaers)\
**Replies:** 3\
**Last updated:** [26 June 2020 09:33 UTC](https://discourse.nodered.org/t/announce-node-red-contrib-ui-svg-beta-new-features/28916 "2020-06-26T09:33:10Z")

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Hi folks, Should really get started soon with the 2.0.0 release of the SVG node. My partner @Steve-Mcl and me had some feature requests in the past to add the ability for adding/removing SVG elements dynamically, by in…

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## [Node.on('input', function(msg, send, done) - what is send for?](https://discourse.nodered.org/t/node-on-input-function-msg-send-done-what-is-send-for/28988)

<div class="topic-metadata">

**Author:** [@Colin](https://discourse.nodered.org/u/Colin)\
**Replies:** 13\
**Last updated:** [26 June 2020 09:25 UTC](https://discourse.nodered.org/t/node-on-input-function-msg-send-done-what-is-send-for/28988 "2020-06-26T09:25:51Z")

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The new prototype for receiving a message in a node is, I believe, node.on('input', function(msg, send, done) { I can't find any documentation or examples showing what send is for. Can someone elucidate, or point me t…

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## [How would exec node be designed now?](https://discourse.nodered.org/t/how-would-exec-node-be-designed-now/29020)

<div class="topic-metadata">

**Author:** [@Colin](https://discourse.nodered.org/u/Colin)\
**Replies:** 0\
**Last updated:** [26 June 2020 09:22 UTC](https://discourse.nodered.org/t/how-would-exec-node-be-designed-now/29020 "2020-06-26T09:22:39Z")

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Following on from discussions on the use of done() and node.error() it would help me in designing a node I am working on to consider the design of the Exec node, were it to be redesigned taking the new Complete feature i…

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## [Server blocked deploy not possible](https://discourse.nodered.org/t/server-blocked-deploy-not-possible/28906)

<div class="topic-metadata">

**Author:** [@cigno](https://discourse.nodered.org/u/cigno)\
**Replies:** 9\
**Last updated:** [26 June 2020 08:55 UTC](https://discourse.nodered.org/t/server-blocked-deploy-not-possible/28906 "2020-06-26T08:55:43Z")

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Hello everyone . Can anyone tell me why the server crashed? as soon as I deploy this message appears to me. Thanks in advance.

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## [Adding a payload to a varible](https://discourse.nodered.org/t/adding-a-payload-to-a-varible/28939)

<div class="topic-metadata">

**Author:** [@rmystique](https://discourse.nodered.org/u/rmystique)\
**Replies:** 3\
**Last updated:** [26 June 2020 07:46 UTC](https://discourse.nodered.org/t/adding-a-payload-to-a-varible/28939 "2020-06-26T07:46:01Z")

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I am trying to take an input payload and add to it a varible that is stored and output a combined value using a function node with the following: msg.payload = msg.payload + flow.delay return msg; But i get a debug ou…

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## [Possible to create a two-variable (X-Y) chart?](https://discourse.nodered.org/t/possible-to-create-a-two-variable-x-y-chart/28474)

<div class="topic-metadata">

**Author:** [@e-Duardo](https://discourse.nodered.org/u/e-Duardo)\
**Replies:** 7\
**Last updated:** [26 June 2020 07:23 UTC](https://discourse.nodered.org/t/possible-to-create-a-two-variable-x-y-chart/28474 "2020-06-26T07:23:04Z")

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As far as I know (I am very newby in Node-Red), the dashboard node corresponding to "Chart" allows us to represent a variable (Y-axis) versus time (X-axis), besides to bar or pie charts. I would like to represent a comp…

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## [Trouble testing for undefined](https://discourse.nodered.org/t/trouble-testing-for-undefined/28973)

<div class="topic-metadata">

**Author:** [@thebaldgeek](https://discourse.nodered.org/u/thebaldgeek)\
**Replies:** 26\
**Last updated:** [26 June 2020 06:57 UTC](https://discourse.nodered.org/t/trouble-testing-for-undefined/28973 "2020-06-26T06:57:10Z")

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Been at this for a few hours and have plumbed the depths of these forums, but I am still stuck..... Doing a select on a MySQL database and if some of the results are missing from the database, I get a TypeError undefine…

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## [Change value: 1 to true](https://discourse.nodered.org/t/change-value-1-to-true/28861)

<div class="topic-metadata">

**Author:** [@carmar19](https://discourse.nodered.org/u/carmar19)\
**Replies:** 5\
**Last updated:** [26 June 2020 06:40 UTC](https://discourse.nodered.org/t/change-value-1-to-true/28861 "2020-06-26T06:40:22Z")

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good night i am new to this program and i find it very interesting i am learning from the good going to the problem and connected a nano plc and i want to activate the output the registry votes me a value 1 but i want to…

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## [How to align the time in different charts in one dashboard?](https://discourse.nodered.org/t/how-to-align-the-time-in-different-charts-in-one-dashboard/28860)

<div class="topic-metadata">

**Author:** [@AK51](https://discourse.nodered.org/u/AK51)\
**Replies:** 3\
**Last updated:** [26 June 2020 06:33 UTC](https://discourse.nodered.org/t/how-to-align-the-time-in-different-charts-in-one-dashboard/28860 "2020-06-26T06:33:07Z")

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Hi, I have data in several MYSQL tables. when I get the data out and plot to the charts, because the Timestamp in each table are not the same, the starting time and range are not the same. e.g. newMsg.topic = "SELECT …

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## [Switch doesn't display music\_off icon](https://discourse.nodered.org/t/switch-doesnt-display-music-off-icon/28962)

<div class="topic-metadata">

**Author:** [@Klara](https://discourse.nodered.org/u/Klara)\
**Replies:** 1\
**Last updated:** [25 June 2020 23:06 UTC](https://discourse.nodered.org/t/switch-doesnt-display-music-off-icon/28962 "2020-06-25T23:06:42Z")

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Hi, I want to use the switch node with material design icons. This usually works without a problem, but with the icon "music\_off" it isn't working. These are my settings for the switch icon: And this is what I get …

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## [\[ANNOUNCE\] node-red-contrib-name2ipv4](https://discourse.nodered.org/t/announce-node-red-contrib-name2ipv4/28946)

<div class="topic-metadata">

**Author:** [@gotj](https://discourse.nodered.org/u/gotj)\
**Replies:** 3\
**Last updated:** [25 June 2020 22:32 UTC](https://discourse.nodered.org/t/announce-node-red-contrib-name2ipv4/28946 "2020-06-25T22:32:19Z")

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Gets the IP (A-Record) of a domain name. By default uses the OS DNS unless you provide a different one in the config box.

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## [Tail node using UNC path](https://discourse.nodered.org/t/tail-node-using-unc-path/28914)

<div class="topic-metadata">

**Author:** [@gbos3415](https://discourse.nodered.org/u/gbos3415)\
**Replies:** 14\
**Last updated:** [25 June 2020 20:12 UTC](https://discourse.nodered.org/t/tail-node-using-unc-path/28914 "2020-06-25T20:12:03Z")

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Hello, how can i use the tail node with a shared unc path? im getting "File not found: \\\\10.0.0.174\\Logs\\RuleSystem.log" i already set shared permission.

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