# Latest

**URL:** https://discourse.nodered.org/latest.md?page=864

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

**Page:** 865

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## [Get lights to flash when phone receives calls/messages](https://discourse.nodered.org/t/get-lights-to-flash-when-phone-receives-calls-messages/42398)

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**Author:** [@DJwho123](https://discourse.nodered.org/u/DJwho123)\
**Replies:** 4\
**Last updated:** [10 March 2021 14:52 UTC](https://discourse.nodered.org/t/get-lights-to-flash-when-phone-receives-calls-messages/42398 "2021-03-10T14:52:02Z")

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Hi! I would like my house lights to flash (preferable in different colours, depending on the notification) when my phone receives notifications (calls, messages, and so on). Is this possible in Node red? Thanks guys!

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## [New tls error when starting node red](https://discourse.nodered.org/t/new-tls-error-when-starting-node-red/42412)

<div class="topic-metadata">

**Author:** [@jfpedno](https://discourse.nodered.org/u/jfpedno)\
**Replies:** 1\
**Last updated:** [10 March 2021 14:00 UTC](https://discourse.nodered.org/t/new-tls-error-when-starting-node-red/42412 "2021-03-10T14:00:38Z")

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Could I have a tip about how to fix my tl error. My node red was working on https but I get that new error now. It was working before and coming back few weeks after then : Error: error:140AB18F:SSL routines:SSL\_CTX\_use…

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## [Google Oauth issues](https://discourse.nodered.org/t/google-oauth-issues/42197)

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**Author:** [@umtksa](https://discourse.nodered.org/u/umtksa)\
**Replies:** 12\
**Last updated:** [10 March 2021 12:14 UTC](https://discourse.nodered.org/t/google-oauth-issues/42197 "2021-03-10T12:14:20Z")

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I have a dashboard running on raspberry pi running on diet-pi pi running just Node-red and chromium in kiosk mode locally so it's not accessible from outside world I have alot of widgets running on dashboard getting d…

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## [Node Red to device Domoticz](https://discourse.nodered.org/t/node-red-to-device-domoticz/42358)

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**Author:** [@RobTester](https://discourse.nodered.org/u/RobTester)\
**Replies:** 4\
**Last updated:** [10 March 2021 11:59 UTC](https://discourse.nodered.org/t/node-red-to-device-domoticz/42358 "2021-03-10T11:59:37Z")

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Hi, How can I send a value to Domoticz with a function Node? I have a Domoticz Device type "General,kWh" with IDX=522 and I want to have the value what is send with the inject Node in Domoticz Device "Today kWh" Than…

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## [Saving array to mysql - letters and numbers](https://discourse.nodered.org/t/saving-array-to-mysql-letters-and-numbers/42365)

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**Author:** [@RogierQ](https://discourse.nodered.org/u/RogierQ)\
**Replies:** 7\
**Last updated:** [10 March 2021 11:25 UTC](https://discourse.nodered.org/t/saving-array-to-mysql-letters-and-numbers/42365 "2021-03-10T11:25:32Z")

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Hi! After about 4 hours googling and trying i hope someone here knows the answer :wink: i have a array that i want to save to a database. the array is below \[2,3,"b",5,6,7\] when it is saved in the table the " " are …

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## [Thingspeak data to node-red](https://discourse.nodered.org/t/thingspeak-data-to-node-red/11330)

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**Author:** [@mshaz](https://discourse.nodered.org/u/mshaz)\
**Replies:** 4\
**Last updated:** [10 March 2021 11:10 UTC](https://discourse.nodered.org/t/thingspeak-data-to-node-red/11330 "2021-03-10T11:10:39Z")

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I have data in thingspeak but unsure how do i send it to node-red. here is the feed link and data format. https://api.thingspeak.com/channels/782876/feeds.json?results=2 {"channel":{"id":782876,"name":"Floodsensed","l…

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## [How to write payload to google doc?](https://discourse.nodered.org/t/how-to-write-payload-to-google-doc/42379)

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**Author:** [@AK51](https://discourse.nodered.org/u/AK51)\
**Replies:** 3\
**Last updated:** [10 March 2021 10:58 UTC](https://discourse.nodered.org/t/how-to-write-payload-to-google-doc/42379 "2021-03-10T10:58:24Z")

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Hi, I have a payload like this: Index, time and 700 data. I can see it in the msg.payload and I want to log the data in google doc (or excel) I have searched some links like https://flows.nodered.org/flow/a36ccbcfc…

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## [Do I need to worry about these errors?](https://discourse.nodered.org/t/do-i-need-to-worry-about-these-errors/42386)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 7\
**Last updated:** [10 March 2021 09:01 UTC](https://discourse.nodered.org/t/do-i-need-to-worry-about-these-errors/42386 "2021-03-10T09:01:27Z")

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While working on something else I tried restarting NR on this machine. I see these errors... To call them by what they seem to call themselves. TypeError: Cannot read property 'config' of null at addWidget (/home/…

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## [Digital signature on smartphone](https://discourse.nodered.org/t/digital-signature-on-smartphone/42395)

<div class="topic-metadata">

**Author:** [@Miguel](https://discourse.nodered.org/u/Miguel)\
**Replies:** 1\
**Last updated:** [10 March 2021 10:24 UTC](https://discourse.nodered.org/t/digital-signature-on-smartphone/42395 "2021-03-10T10:24:34Z")

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Does anybody already tried to capture a screenshot on a smartphone (with NR on it) where a user draws a digital signature into a blank field and presses a kind of send button with that image later on? Will it be doable …

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## [How to get temperature values below zero](https://discourse.nodered.org/t/how-to-get-temperature-values-below-zero/42383)

<div class="topic-metadata">

**Author:** [@Noschvie](https://discourse.nodered.org/u/Noschvie)\
**Replies:** 6\
**Last updated:** [10 March 2021 10:09 UTC](https://discourse.nodered.org/t/how-to-get-temperature-values-below-zero/42383 "2021-03-10T10:09:11Z")

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Hello, using Modbus to get the outdoor temperature value with the range of negative numbers too. Reading the Modbus address works fine and gets the data as: Kessel (1) : msg.payload : Object object data: array\[1\] 0: 6…

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## [Dashboard button node Icon Property to show jpg image](https://discourse.nodered.org/t/dashboard-button-node-icon-property-to-show-jpg-image/42195)

<div class="topic-metadata">

**Author:** [@guenter-ms](https://discourse.nodered.org/u/guenter-ms)\
**Replies:** 8\
**Last updated:** [10 March 2021 09:54 UTC](https://discourse.nodered.org/t/dashboard-button-node-icon-property-to-show-jpg-image/42195 "2021-03-10T09:54:24Z")

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Hi, I'm new and tried to search a solution for a simple question: I like to show an image file (jpg) as a / on a button node. How do I have to fill the "Icon" property? Nodered is running on an raspi3. a) how to define…

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## [Reboot, vs \`node-red-restart\`](https://discourse.nodered.org/t/reboot-vs-node-red-restart/42373)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 11\
**Last updated:** [10 March 2021 09:23 UTC](https://discourse.nodered.org/t/reboot-vs-node-red-restart/42373 "2021-03-10T09:23:09Z")

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Today's question: I have flows which have inject nodes which inject a signal at boot. Fair enough. So what's the difference - as I am sure there is - between a reboot (where the machine reboots) and if I go to the ter…

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## [New router, broker IP question](https://discourse.nodered.org/t/new-router-broker-ip-question/42230)

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**Author:** [@SteveMann](https://discourse.nodered.org/u/SteveMann)\
**Replies:** 11\
**Last updated:** [10 March 2021 09:18 UTC](https://discourse.nodered.org/t/new-router-broker-ip-question/42230 "2021-03-10T09:18:48Z")

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Here's the problem. I installed Mosquitto on a Raspberry Pi a bit more then two years ago. The router DHCP assigned 192.168.1.124 to the Pi, and I marked it as a permanent lease in the router. Now, I am planning a migr…

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## [ModbusTCP on node-red is it possible for 50 devices?](https://discourse.nodered.org/t/modbustcp-on-node-red-is-it-possible-for-50-devices/17316)

<div class="topic-metadata">

**Author:** [@Henjoe](https://discourse.nodered.org/u/Henjoe)\
**Replies:** 36\
**Last updated:** [5 February 2021 16:32 UTC](https://discourse.nodered.org/t/modbustcp-on-node-red-is-it-possible-for-50-devices/17316 "2021-02-05T16:32:15Z")

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Hello everyone here already implemented modbus on our Node-Red? I have 50 modbus devices, and I want to get connected on it via Modbus using Node-Red, I have concern in terms of processing and reliability of the system, …

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## [Solved Install error on script but can not identify the issue](https://discourse.nodered.org/t/solved-install-error-on-script-but-can-not-identify-the-issue/42338)

<div class="topic-metadata">

**Author:** [@riker65](https://discourse.nodered.org/u/riker65)\
**Replies:** 4\
**Last updated:** [10 March 2021 07:26 UTC](https://discourse.nodered.org/t/solved-install-error-on-script-but-can-not-identify-the-issue/42338 "2021-03-10T07:26:28Z")

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Hi I tried to follow your recommendation to install node-red. as written here: install script looking intot the log I do not see a hint. running with suod also got an error (see below) What am I missing? Thanks fo…

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## [Dashboard "audio out" node doesn't play audio wav file on mobile phone](https://discourse.nodered.org/t/dashboard-audio-out-node-doesnt-play-audio-wav-file-on-mobile-phone/41937)

<div class="topic-metadata">

**Author:** [@janvda](https://discourse.nodered.org/u/janvda)\
**Replies:** 7\
**Last updated:** [10 March 2021 07:25 UTC](https://discourse.nodered.org/t/dashboard-audio-out-node-doesnt-play-audio-wav-file-on-mobile-phone/41937 "2021-03-10T07:25:09Z")

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I have created a simple flow using node-red dashboard that plays an audio wav file using the dashboard audio out node when clicking on button "beep". \[ { "id": "f6f2187d.f17ca8", "type": "tab", …

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## [Issue in getting response from http call](https://discourse.nodered.org/t/issue-in-getting-response-from-http-call/42291)

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**Author:** [@arvindharitus](https://discourse.nodered.org/u/arvindharitus)\
**Replies:** 1\
**Last updated:** [10 March 2021 03:22 UTC](https://discourse.nodered.org/t/issue-in-getting-response-from-http-call/42291 "2021-03-10T03:22:52Z")

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Good morning, This is my first assignment of Node-Red and I am creating a custom-node that will get data from an API. To get the data I need to send an access token from another host. I am getting the access token thro…

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## [8 bit ascii to hex](https://discourse.nodered.org/t/8-bit-ascii-to-hex/42369)

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**Author:** [@PCRover](https://discourse.nodered.org/u/PCRover)\
**Replies:** 3\
**Last updated:** [9 March 2021 23:20 UTC](https://discourse.nodered.org/t/8-bit-ascii-to-hex/42369 "2021-03-09T23:20:10Z")

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Is there a way to take an 8bit ascii serial data string (11 bytes) from a serial port and and decode it to hex values? This conversion doesn't work as I believe it only uses 7 bits. I get mostly bad data. data = Buffer…

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## [Telegram BOT message loop + delay](https://discourse.nodered.org/t/telegram-bot-message-loop-delay/42360)

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**Author:** [@Hunter](https://discourse.nodered.org/u/Hunter)\
**Replies:** 3\
**Last updated:** [9 March 2021 22:45 UTC](https://discourse.nodered.org/t/telegram-bot-message-loop-delay/42360 "2021-03-09T22:45:50Z")

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Hello, I have a Telegram BOT running, fetching messages from a DB and sending them into a channel. These messages actually consist of 2 messages, the first is a map (location), the second is a text message. If the next …

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## [Want to query modbus sensor via mqtt](https://discourse.nodered.org/t/want-to-query-modbus-sensor-via-mqtt/42085)

<div class="topic-metadata">

**Author:** [@bachloo.rahul](https://discourse.nodered.org/u/bachloo.rahul)\
**Replies:** 20\
**Last updated:** [9 March 2021 18:36 UTC](https://discourse.nodered.org/t/want-to-query-modbus-sensor-via-mqtt/42085 "2021-03-09T18:36:28Z")

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I am using a vibration sensor which is connected through modbus rtu to lorawan end node and end node is in turn connected with the lorawan gateway.so can i send modbus commands from node red platform to query the senso…

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## [How to filter a result from a resquest](https://discourse.nodered.org/t/how-to-filter-a-result-from-a-resquest/42357)

<div class="topic-metadata">

**Author:** [@ndz](https://discourse.nodered.org/u/ndz)\
**Replies:** 6\
**Last updated:** [9 March 2021 18:21 UTC](https://discourse.nodered.org/t/how-to-filter-a-result-from-a-resquest/42357 "2021-03-09T18:21:01Z")

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I have a request that returns basically that inside of each item theres is an object that has a "dataAbertura" field, a string im trying to filter these results with that function, but its not working msg.payload.va…

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## [French translation / traduction en français](https://discourse.nodered.org/t/french-translation-traduction-en-francais/41858)

<div class="topic-metadata">

**Author:** [@SebCanet](https://discourse.nodered.org/u/SebCanet)\
**Replies:** 5\
**Last updated:** [9 March 2021 18:17 UTC](https://discourse.nodered.org/t/french-translation-traduction-en-francais/41858 "2021-03-09T18:17:52Z")

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hello everyone, I searched on the forum, in the wiki, in the documentation, on the web, to find out if anyone had already produced a French translation of node-red. I want to use it in schools, and I need to be able to…

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## [MQTT broker sending old messages](https://discourse.nodered.org/t/mqtt-broker-sending-old-messages/42114)

<div class="topic-metadata">

**Author:** [@HZB](https://discourse.nodered.org/u/HZB)\
**Replies:** 16\
**Last updated:** [9 March 2021 16:14 UTC](https://discourse.nodered.org/t/mqtt-broker-sending-old-messages/42114 "2021-03-09T16:14:09Z")

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Hi, I am using MQTT to retain the comments using text file after power cycle of R Pi. Initially when i enter comments it save perfectly fine. But after approximately 1 hours, it resets to the 2 days old message which is…

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## [State of global variable in dashboard](https://discourse.nodered.org/t/state-of-global-variable-in-dashboard/42330)

<div class="topic-metadata">

**Author:** [@fmarzocca](https://discourse.nodered.org/u/fmarzocca)\
**Replies:** 12\
**Last updated:** [9 March 2021 15:39 UTC](https://discourse.nodered.org/t/state-of-global-variable-in-dashboard/42330 "2021-03-09T15:39:02Z")

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I have a global variable which changes state around all my flows. As I need to show the state of the variable in the dashboard, is there any way smarter than to poll the variable each second? (I need a "live" display of …

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## [Limit dashboard access by client IP?](https://discourse.nodered.org/t/limit-dashboard-access-by-client-ip/42285)

<div class="topic-metadata">

**Author:** [@jtaylor](https://discourse.nodered.org/u/jtaylor)\
**Replies:** 4\
**Last updated:** [9 March 2021 15:26 UTC](https://discourse.nodered.org/t/limit-dashboard-access-by-client-ip/42285 "2021-03-09T15:26:18Z")

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Is it possible to restrict what client IP addresses can connect to the Node-RED dashboard (e.g. http://127.0.0.1:1880)? TIA

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## [Is there a way to refresh the entire dashboard periodically?](https://discourse.nodered.org/t/is-there-a-way-to-refresh-the-entire-dashboard-periodically/42336)

<div class="topic-metadata">

**Author:** [@zbyrd](https://discourse.nodered.org/u/zbyrd)\
**Replies:** 5\
**Last updated:** [9 March 2021 15:19 UTC](https://discourse.nodered.org/t/is-there-a-way-to-refresh-the-entire-dashboard-periodically/42336 "2021-03-09T15:19:21Z")

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Hi all! Hope life is treating you well. I've built a node red dash to monitor a sensor array. This dash is displayed persistently, but some frustrating memory leak issues cause it to crash periodically as the browser co…

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## [Can't get node 'play soundfile' to work](https://discourse.nodered.org/t/cant-get-node-play-soundfile-to-work/42325)

<div class="topic-metadata">

**Author:** [@jerxjac](https://discourse.nodered.org/u/jerxjac)\
**Replies:** 6\
**Last updated:** [9 March 2021 14:59 UTC](https://discourse.nodered.org/t/cant-get-node-play-soundfile-to-work/42325 "2021-03-09T14:59:46Z")

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I installed " node-red-contrib-play-soundfile " but can't get it to work. This is a little test flow with a link to my soundfile on D:/ \[{"id":"6a739113.f47cd","type":"debug","z":"76a6fe94.1adb4","name":"","active":tru…

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## [I cant Install any nodes in embedded node-red](https://discourse.nodered.org/t/i-cant-install-any-nodes-in-embedded-node-red/41791)

<div class="topic-metadata">

**Author:** [@d0d04m3](https://discourse.nodered.org/u/d0d04m3)\
**Replies:** 14\
**Last updated:** [9 March 2021 14:48 UTC](https://discourse.nodered.org/t/i-cant-install-any-nodes-in-embedded-node-red/41791 "2021-03-09T14:48:20Z")

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hi please i need some help I use this template installed with # Create a project folder and change into it mkdir myproject && cd myproject # Clone this repository into the project folder git clone https://github.com/…

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## [Parsing an url into a ui\_template node](https://discourse.nodered.org/t/parsing-an-url-into-a-ui-template-node/42346)

<div class="topic-metadata">

**Author:** [@Mihai\_S](https://discourse.nodered.org/u/Mihai_S)\
**Replies:** 0\
**Last updated:** [9 March 2021 14:42 UTC](https://discourse.nodered.org/t/parsing-an-url-into-a-ui-template-node/42346 "2021-03-09T14:42:12Z")

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Hello, I have got this UI\_template node containing an embeded html graph from an emoncms database. I would like to be able to parse in the html data from the outside whilst keeping all functionallity of the embed because…

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## [How to set PERL5LIB for node-red?](https://discourse.nodered.org/t/how-to-set-perl5lib-for-node-red/42189)

<div class="topic-metadata">

**Author:** [@hepcat72](https://discourse.nodered.org/u/hepcat72)\
**Replies:** 13\
**Last updated:** [9 March 2021 14:12 UTC](https://discourse.nodered.org/t/how-to-set-perl5lib-for-node-red/42189 "2021-03-09T14:12:48Z")

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I'm using the exec node to call a perl script that uses the DateTime module. I installed it and all its dependencies using cpan and the script works on the command line, but when I run it from the exec node in node-red,…

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