# Latest

**URL:** https://discourse.nodered.org/latest.md?page=1124

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

**Page:** 1125

---

## [Limit on ewelink event listener?](https://discourse.nodered.org/t/limit-on-ewelink-event-listener/23995)

<div class="topic-metadata">

**Author:** [@demokedes](https://discourse.nodered.org/u/demokedes)\
**Replies:** 6\
**Last updated:** [4 April 2020 13:49 UTC](https://discourse.nodered.org/t/limit-on-ewelink-event-listener/23995 "2020-04-04T13:49:28Z")

</div>

I am using nodered to create reports for usage od my ewelink/sonoff devices in my home. In my house I have majority light switches from Sonoff. I am using Node-res to listen to all changes in switcher and then I am str…

---

## [Ui builder control messages](https://discourse.nodered.org/t/ui-builder-control-messages/23725)

<div class="topic-metadata">

**Author:** [@albydnc](https://discourse.nodered.org/u/albydnc)\
**Replies:** 5\
**Last updated:** [4 April 2020 13:01 UTC](https://discourse.nodered.org/t/ui-builder-control-messages/23725 "2020-04-04T13:01:39Z")

</div>

Hi everyone, I am moving to uibuilder to build dashboards, but I can't understand how the control messages are passed. I am using this flow debug example by injecting a msg object built like this: { uibuilderCtrl: "t…

---

## [Node-red to WampServer on my laptop](https://discourse.nodered.org/t/node-red-to-wampserver-on-my-laptop/24206)

<div class="topic-metadata">

**Author:** [@iankillz](https://discourse.nodered.org/u/iankillz)\
**Replies:** 4\
**Last updated:** [4 April 2020 10:21 UTC](https://discourse.nodered.org/t/node-red-to-wampserver-on-my-laptop/24206 "2020-04-04T10:21:55Z")

</div>

Hello guys, im new to node-red and I am trying to send my sensor readings to a database but MySql DB is on my laptop and not locally to my pi. How can send data to MySql on my laptop?

---

## [Cannot access microphone](https://discourse.nodered.org/t/cannot-access-microphone/24207)

<div class="topic-metadata">

**Author:** [@lingzhongli](https://discourse.nodered.org/u/lingzhongli)\
**Replies:** 6\
**Last updated:** [4 April 2020 10:01 UTC](https://discourse.nodered.org/t/cannot-access-microphone/24207 "2020-04-04T10:01:08Z")

</div>

i cannot using the microphone.... cause i cannot allow my microphone.... is because it is not secure? Have any solution to make it secure so i can allow mcrophone??

---

## [Windows 10 - Upgrade unable to via CMD](https://discourse.nodered.org/t/windows-10-upgrade-unable-to-via-cmd/24161)

<div class="topic-metadata">

**Author:** [@ScheepersJohan](https://discourse.nodered.org/u/ScheepersJohan)\
**Replies:** 2\
**Last updated:** [4 April 2020 07:42 UTC](https://discourse.nodered.org/t/windows-10-upgrade-unable-to-via-cmd/24161 "2020-04-04T07:42:43Z")

</div>

Hi, Trying to upgrade Node -red on my Windows 10 PC. I am using CDM and not powershell and as the directory is C:\\Program Files\\nodejs Error from Powershell, I think it is due the the space in the directory structure …

---

## [Object on msg deleted after file in node, msg per line configuraton](https://discourse.nodered.org/t/object-on-msg-deleted-after-file-in-node-msg-per-line-configuraton/23815)

<div class="topic-metadata">

**Author:** [@bug00](https://discourse.nodered.org/u/bug00)\
**Replies:** 12\
**Last updated:** [4 April 2020 05:52 UTC](https://discourse.nodered.org/t/object-on-msg-deleted-after-file-in-node-msg-per-line-configuraton/23815 "2020-04-04T05:52:00Z")

</div>

Hi, I don't understand why with file in node, in "msg per line" configuration i loose every object on msg. If if add a change node with a key msg : { test : 'toto' } then, after the file in node msg is totaly replace …

---

## [Spliting Payload to Insert into Mysql](https://discourse.nodered.org/t/spliting-payload-to-insert-into-mysql/24193)

<div class="topic-metadata">

**Author:** [@nksky](https://discourse.nodered.org/u/nksky)\
**Replies:** 6\
**Last updated:** [4 April 2020 00:23 UTC](https://discourse.nodered.org/t/spliting-payload-to-insert-into-mysql/24193 "2020-04-04T00:23:39Z")

</div>

I'm getting stuck splitting a payload to insert it into MySql table, I know its something simple, but I cant figure it. Any help greatly appreciated. This is my payload and this is my function node var myDataArray …

---

## [Order of gauges](https://discourse.nodered.org/t/order-of-gauges/24187)

<div class="topic-metadata">

**Author:** [@warnert](https://discourse.nodered.org/u/warnert)\
**Replies:** 1\
**Last updated:** [3 April 2020 23:38 UTC](https://discourse.nodered.org/t/order-of-gauges/24187 "2020-04-03T23:38:57Z")

</div>

I am new to NodeRed and am running it on a RPi3b. I installed Dashboard. I created a dashboard with four gauges. Now my question is how can I put them in the order I want to have them? I don't see what is determining …

---

## [Question about \`calculate\` node](https://discourse.nodered.org/t/question-about-calculate-node/24191)

<div class="topic-metadata">

**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 2\
**Last updated:** [3 April 2020 22:59 UTC](https://discourse.nodered.org/t/question-about-calculate-node/24191 "2020-04-03T22:59:47Z")

</div>

(From the library I was pointed here for "feedback and support") Sort of tied in with my "Rate detection" thread. Would this node be useful to me for doing what I want to do? The description is a bit vague for me to g…

---

## [Group of tab to popup](https://discourse.nodered.org/t/group-of-tab-to-popup/24182)

<div class="topic-metadata">

**Author:** [@d0d04m3](https://discourse.nodered.org/u/d0d04m3)\
**Replies:** 6\
**Last updated:** [3 April 2020 22:30 UTC](https://discourse.nodered.org/t/group-of-tab-to-popup/24182 "2020-04-03T22:30:41Z")

</div>

hi possible to integrate a group of tab to popup msgbox like notification node ? if note any other way

---

## [Synchronizing multiple graph times](https://discourse.nodered.org/t/synchronizing-multiple-graph-times/24097)

<div class="topic-metadata">

**Author:** [@MikeR](https://discourse.nodered.org/u/MikeR)\
**Replies:** 11\
**Last updated:** [3 April 2020 21:29 UTC](https://discourse.nodered.org/t/synchronizing-multiple-graph-times/24097 "2020-04-03T21:29:21Z")

</div>

I have a DS18B20 and a DHT11 logging the temperature of my fish tank and room temp/humidity in 3 graphs. How do I synchronize the graphs (set for a 1 day X axis) so that they all update at the same time?TelePeriod is set…

---

## [Help finding the source of this error:](https://discourse.nodered.org/t/help-finding-the-source-of-this-error/24181)

<div class="topic-metadata">

**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 2\
**Last updated:** [3 April 2020 21:21 UTC](https://discourse.nodered.org/t/help-finding-the-source-of-this-error/24181 "2020-04-03T21:21:27Z")

</div>

As much as I have tried to catch errors in my flows and identify them, this one is not playing the game. This is the error message: And when I search for the source I get: Anyone - please.

---

## [\[FeatureRequest/Discussion\]Alter Debug indentation](https://discourse.nodered.org/t/featurerequest-discussion-alter-debug-indentation/24169)

<div class="topic-metadata">

**Author:** [@cymplecy](https://discourse.nodered.org/u/cymplecy)\
**Replies:** 9\
**Last updated:** [3 April 2020 20:14 UTC](https://discourse.nodered.org/t/featurerequest-discussion-alter-debug-indentation/24169 "2020-04-03T20:14:19Z")

</div>

This may be just me, but when dealing with complex messages - I easily get confused (and then spend time trying to work out why I can't access a property) by the debug indentation When I first look at this example, it…

---

## [Questions. Machine in development](https://discourse.nodered.org/t/questions-machine-in-development/24168)

<div class="topic-metadata">

**Author:** [@gonzalito](https://discourse.nodered.org/u/gonzalito)\
**Replies:** 8\
**Last updated:** [3 April 2020 20:59 UTC](https://discourse.nodered.org/t/questions-machine-in-development/24168 "2020-04-03T20:59:29Z")

</div>

Hello guys, this is my first post here. But mainly i'm doing this to ask a few things about our approach on a product being developed. We have a developed a self propelled machine for milk distribution among calves. …

---

## [Monthly signal - help please](https://discourse.nodered.org/t/monthly-signal-help-please/24125)

<div class="topic-metadata">

**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 10\
**Last updated:** [3 April 2020 20:36 UTC](https://discourse.nodered.org/t/monthly-signal-help-please/24125 "2020-04-03T20:36:14Z")

</div>

(Brain failure) I'm wanting a monthly signal to happen at ...... 23:50. (say) (Sorry.... The rub: last day of the month) The inject nodes doesn't quite seem to do that. cronplus may. bigtimer seems possible too. …

---

## [Box for Shelly 1](https://discourse.nodered.org/t/box-for-shelly-1/24157)

<div class="topic-metadata">

**Author:** [@cflurin](https://discourse.nodered.org/u/cflurin)\
**Replies:** 12\
**Last updated:** [3 April 2020 16:58 UTC](https://discourse.nodered.org/t/box-for-shelly-1/24157 "2020-04-03T16:58:23Z")

</div>

Hi, I have designed a 3D box for Shelly 1: If you are interested, I can upload the STL-files to Thingiverse.

---

## [Ui template & global scope](https://discourse.nodered.org/t/ui-template-global-scope/1929)

<div class="topic-metadata">

**Author:** [@realjax](https://discourse.nodered.org/u/realjax)\
**Replies:** 5\
**Last updated:** [3 April 2020 16:54 UTC](https://discourse.nodered.org/t/ui-template-global-scope/1929 "2020-04-03T16:54:10Z")

</div>

Hello, I am trying to access the global scope in a ui template (\<script\> var myVar = global.get("MyVariable"); \</script\> ) but that results in a 'global is not defined' error message. Can I access it there and if so, us…

---

## [AWS Cloud MQTT IOT connection Problem](https://discourse.nodered.org/t/aws-cloud-mqtt-iot-connection-problem/12892)

<div class="topic-metadata">

**Author:** [@RoundTriangle](https://discourse.nodered.org/u/RoundTriangle)\
**Replies:** 3\
**Last updated:** [3 April 2020 16:34 UTC](https://discourse.nodered.org/t/aws-cloud-mqtt-iot-connection-problem/12892 "2020-04-03T16:34:41Z")

</div>

Hello NODE-Red- Forum! Not sure if this is a node red problem, but maybe someone has experience with it. Its like a kind of Hybrid .. I want to connect with Node-red via the mqtt node to the aws IoT. I use a Simatic I…

---

## [I2c reading Atlas Scientific PH EZO](https://discourse.nodered.org/t/i2c-reading-atlas-scientific-ph-ezo/7343)

<div class="topic-metadata">

**Author:** [@debouttek](https://discourse.nodered.org/u/debouttek)\
**Replies:** 4\
**Last updated:** [3 April 2020 15:53 UTC](https://discourse.nodered.org/t/i2c-reading-atlas-scientific-ph-ezo/7343 "2020-04-03T15:53:04Z")

</div>

I would like to read from i2c device (PH EZO Atlas Scientific) (https://www.atlas-scientific.com/product\_pages/circuits/ezo\_ph.html) I can read out the PH sensor using a Python script so hardware wise it's working fine.…

---

## [Basic drawing tools in NR editor](https://discourse.nodered.org/t/basic-drawing-tools-in-nr-editor/3924)

<div class="topic-metadata">

**Author:** [@Bobo](https://discourse.nodered.org/u/Bobo)\
**Replies:** 54\
**Last updated:** [3 April 2020 15:24 UTC](https://discourse.nodered.org/t/basic-drawing-tools-in-nr-editor/3924 "2020-04-03T15:24:59Z")

</div>

How difficult would it be to add some basic drawing tools to the editor? Things like box, circle, text. Perhaps even some colour? Grouping stuff within a tab would be so much easier using visual queues.

---

## [How to show analog/digital information in a URL from a PLC via MQTT](https://discourse.nodered.org/t/how-to-show-analog-digital-information-in-a-url-from-a-plc-via-mqtt/24025)

<div class="topic-metadata">

**Author:** [@qmf](https://discourse.nodered.org/u/qmf)\
**Replies:** 4\
**Last updated:** [3 April 2020 14:56 UTC](https://discourse.nodered.org/t/how-to-show-analog-digital-information-in-a-url-from-a-plc-via-mqtt/24025 "2020-04-03T14:56:55Z")

</div>

Hi everyone, First of all, I am brand new in IoT technologies so excuse me if I make a mistake and say something wrong. I am trying to control inputs and outputs from a PLC via MQTT and get all data in node-red, to sen…

---

## [RBE Node for msg.payload Array](https://discourse.nodered.org/t/rbe-node-for-msg-payload-array/23655)

<div class="topic-metadata">

**Author:** [@Andreas703](https://discourse.nodered.org/u/Andreas703)\
**Replies:** 8\
**Last updated:** [3 April 2020 14:54 UTC](https://discourse.nodered.org/t/rbe-node-for-msg-payload-array/23655 "2020-04-03T14:54:05Z")

</div>

Hi, I am using a device with NodeRed 0.18.7. I am getting an array of msg.payload looks like Is there a possibility to address all msg.payload.value of the array in the rbe node without splitting the Array? Thx

---

## [Replace space Full Name regex?](https://discourse.nodered.org/t/replace-space-full-name-regex/24112)

<div class="topic-metadata">

**Author:** [@niclas.w82](https://discourse.nodered.org/u/niclas.w82)\
**Replies:** 3\
**Last updated:** [3 April 2020 14:43 UTC](https://discourse.nodered.org/t/replace-space-full-name-regex/24112 "2020-04-03T14:43:06Z")

</div>

Hi. Have tried to read about regex expressions but don't succeed. Maybe there is an easier way to do this. I want to replace the space between first name and surname in a payload with %20. The payload is for example J…

---

## [Msg.payload in http request?](https://discourse.nodered.org/t/msg-payload-in-http-request/24151)

<div class="topic-metadata">

**Author:** [@niclas.w82](https://discourse.nodered.org/u/niclas.w82)\
**Replies:** 4\
**Last updated:** [3 April 2020 14:41 UTC](https://discourse.nodered.org/t/msg-payload-in-http-request/24151 "2020-04-03T14:41:11Z")

</div>

Hi is it possible to use{{msg.payload}} in http request? Cant get it to work? Can I somehow see what's getting out from the http node. Tried http logger but it doesn't show anything. Even if filter is blank.

---

## [\[Announce\] Dashboard Version 2.20.0](https://discourse.nodered.org/t/announce-dashboard-version-2-20-0/24160)

<div class="topic-metadata">

**Author:** [@dceejay](https://discourse.nodered.org/u/dceejay)\
**Replies:** 0\
**Last updated:** [3 April 2020 13:55 UTC](https://discourse.nodered.org/t/announce-dashboard-version-2-20-0/24160 "2020-04-03T13:55:10Z")

</div>

As it's been a while and few little fixes and enhancements have built up - here is version 2.20. Don't forget to flush browser cache after upgrade to ensure latest client side code gets loaded. Enhancements Add open …

---

## [Create a CSV file and from CSV to chart](https://discourse.nodered.org/t/create-a-csv-file-and-from-csv-to-chart/24027)

<div class="topic-metadata">

**Author:** [@ScheepersJohan](https://discourse.nodered.org/u/ScheepersJohan)\
**Replies:** 2\
**Last updated:** [3 April 2020 13:51 UTC](https://discourse.nodered.org/t/create-a-csv-file-and-from-csv-to-chart/24027 "2020-04-03T13:51:48Z")

</div>

Hi, In the top part I create a CSV file from a time stamp and random data (could be from a sensor as well, 4 data sets Time stamp, Temp Water, Temp Air and Light Level) In the bottom part I want to read the CSV and cre…

---

## [Sql to chart coding error](https://discourse.nodered.org/t/sql-to-chart-coding-error/24121)

<div class="topic-metadata">

**Author:** [@chuckf201](https://discourse.nodered.org/u/chuckf201)\
**Replies:** 3\
**Last updated:** [3 April 2020 13:37 UTC](https://discourse.nodered.org/t/sql-to-chart-coding-error/24121 "2020-04-03T13:37:42Z")

</div>

I'm using a sql statement msg.topic='SELECT HOUR(Time) as Htime, Temperature FROM \`temp-at-interrupt\` where minute(Time)= "00" order by Date DESC, Time DESC LIMIT 20'; which returns the following structure: array\[20\] …

---

## [Hotspot enable/disable using Node-red](https://discourse.nodered.org/t/hotspot-enable-disable-using-node-red/23066)

<div class="topic-metadata">

**Author:** [@Ujjwal](https://discourse.nodered.org/u/Ujjwal)\
**Replies:** 3\
**Last updated:** [3 April 2020 13:36 UTC](https://discourse.nodered.org/t/hotspot-enable-disable-using-node-red/23066 "2020-04-03T13:36:54Z")

</div>

Hi, i'm trying to to connect and disconnect to a hotspot network using node-red, when i uses netstat command in command line it simply disables my wi-fi... i want my node-red to allow me to connect/disconnect to hotspo…

---

## [USB HID RELAY node - question/s](https://discourse.nodered.org/t/usb-hid-relay-node-question-s/14624)

<div class="topic-metadata">

**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 7\
**Last updated:** [3 April 2020 13:31 UTC](https://discourse.nodered.org/t/usb-hid-relay-node-question-s/14624 "2020-04-03T13:31:15Z")

</div>

I just saw this in the "library": Nice. I can't resolve how to ask the person, so here goes: (From the page) \` Models supported: HW-348 HW-343 HW-341 Models with USB-Relay-1, USB-Relay-2 or USB-Relay-4 printed on…

---

## [Node for reading data of BME680 Sensor](https://discourse.nodered.org/t/node-for-reading-data-of-bme680-sensor/24039)

<div class="topic-metadata">

**Author:** [@Jobi](https://discourse.nodered.org/u/Jobi)\
**Replies:** 20\
**Last updated:** [3 April 2020 13:21 UTC](https://discourse.nodered.org/t/node-for-reading-data-of-bme680-sensor/24039 "2020-04-03T13:21:22Z")

</div>

Hello, I am totally new in raspberry pi programming and I started with a node-red project for measure temperature and humidity (Temperature 3 - 20 °C, humidity 80-100%). The measurement is going to be in a refigerator …

[Previous page](https://discourse.nodered.org/latest.md?page=1123)

[Next page](https://discourse.nodered.org/latest.md?page=1125)