# Latest

**URL:** https://discourse.nodered.org/latest.md?page=1130

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

**Page:** 1131

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## [AIoT programming](https://discourse.nodered.org/t/aiot-programming/18531)

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**Author:** [@anguslou](https://discourse.nodered.org/u/anguslou)\
**Replies:** 6\
**Last updated:** [28 March 2020 04:49 UTC](https://discourse.nodered.org/t/aiot-programming/18531 "2020-03-28T04:49:31Z")

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Node-red is a fantastic tool in IoT programming, however, in order to make the IoT more intelligent, it has to process data and do some data science tasks. While Node-red is not good at handling huge size of data and ana…

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## [Mac address Raspberry pi 4](https://discourse.nodered.org/t/mac-address-raspberry-pi-4/23649)

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**Author:** [@ezequiel\_barros](https://discourse.nodered.org/u/ezequiel_barros)\
**Replies:** 20\
**Last updated:** [26 March 2020 18:03 UTC](https://discourse.nodered.org/t/mac-address-raspberry-pi-4/23649 "2020-03-26T18:03:49Z")

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I would like to present on a dashboard the mac adress of the network adapter in use (wifi or network cable) on the Raspberry Pi 4

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## [How to create a fetch URL for my realtime data? URGENT](https://discourse.nodered.org/t/how-to-create-a-fetch-url-for-my-realtime-data-urgent/23731)

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**Author:** [@Hasanga95](https://discourse.nodered.org/u/Hasanga95)\
**Replies:** 4\
**Last updated:** [28 March 2020 01:12 UTC](https://discourse.nodered.org/t/how-to-create-a-fetch-url-for-my-realtime-data-urgent/23731 "2020-03-28T01:12:08Z")

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I created a flow to get real time data from a moving vehicle via a MQTT in. Then sorted the data in a protocol buffer format. I want to send this data to Google transit server but cannot send it via HTTP post without u…

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## [Error while installing uibuilder](https://discourse.nodered.org/t/error-while-installing-uibuilder/23745)

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**Author:** [@RavinderSingh13](https://discourse.nodered.org/u/RavinderSingh13)\
**Replies:** 3\
**Last updated:** [27 March 2020 23:43 UTC](https://discourse.nodered.org/t/error-while-installing-uibuilder/23745 "2020-03-27T23:43:52Z")

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Hello All, Greetings!! While installing module names "uibuilder" I am getting following error(on my Ubuntu system and my npm version is 6.14.2). sudo npm install uibuilder npm ERR! code E404 npm ERR! 404 Object Not Fo…

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## [Can't get link tag href data from Cheerio parser](https://discourse.nodered.org/t/cant-get-link-tag-href-data-from-cheerio-parser/23647)

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**Author:** [@mrSidX](https://discourse.nodered.org/u/mrSidX)\
**Replies:** 9\
**Last updated:** [27 March 2020 23:20 UTC](https://discourse.nodered.org/t/cant-get-link-tag-href-data-from-cheerio-parser/23647 "2020-03-27T23:20:55Z")

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Anyone out there know how to work this Cheerio node as the descriptions don't cover how to use the bottom portion in detail. I'm trying to extract the URL link from this 'Cheerio Chain' and I came to the link tag and …

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## [BMP180 sensor to MQTT get multiple values](https://discourse.nodered.org/t/bmp180-sensor-to-mqtt-get-multiple-values/23528)

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**Author:** [@Tomadoggy](https://discourse.nodered.org/u/Tomadoggy)\
**Replies:** 37\
**Last updated:** [27 March 2020 22:09 UTC](https://discourse.nodered.org/t/bmp180-sensor-to-mqtt-get-multiple-values/23528 "2020-03-27T22:09:45Z")

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As the topic states, I have a simple (to soon be more complex) need to consume MQTT data from sensors into node-red. I have successfully used mosquito and paho in a python script to create 2 separate MQTT messages from …

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## [Worldmap inside a Widget Group](https://discourse.nodered.org/t/worldmap-inside-a-widget-group/23748)

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**Author:** [@Sep](https://discourse.nodered.org/u/Sep)\
**Replies:** 1\
**Last updated:** [27 March 2020 19:13 UTC](https://discourse.nodered.org/t/worldmap-inside-a-widget-group/23748 "2020-03-27T19:13:35Z")

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Hi, has anybody succeded to have the worlmap map shown inside a widget gropu? I've tried the examples defining a template linked to a function defining \<iframe src="../worldmap" width=400px height=400px\>\</iframe\> and…

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## [Isomorphic functions (same in both .html and .js)](https://discourse.nodered.org/t/isomorphic-functions-same-in-both-html-and-js/23704)

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**Author:** [@lgrkvst](https://discourse.nodered.org/u/lgrkvst)\
**Replies:** 5\
**Last updated:** [27 March 2020 19:08 UTC](https://discourse.nodered.org/t/isomorphic-functions-same-in-both-html-and-js/23704 "2020-03-27T19:08:56Z")

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Hi community, I'd be so grateful for a pointer or two as I spent the better part of the day trying to solve this: I need to execute an isomorphic function, i.e. both on the server (myNode.js) and the client (myNode.htm…

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## [Error: Tarn: opt.max must be an integer](https://discourse.nodered.org/t/error-tarn-opt-max-must-be-an-integer/23714)

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**Author:** [@pedrossag](https://discourse.nodered.org/u/pedrossag)\
**Replies:** 14\
**Last updated:** [27 March 2020 16:26 UTC](https://discourse.nodered.org/t/error-tarn-opt-max-must-be-an-integer/23714 "2020-03-27T16:26:51Z")

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Hi I get a strange error when using the MSSQL-Node (node-red-contrib-mssql-plus v.0.4.0) with nodeRed (v1.0.3). When executing a query, it shows: 'Tarn: opt.max must be an integer \> 0'. The node worked without problem…

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## [Add middleware for static contents](https://discourse.nodered.org/t/add-middleware-for-static-contents/23667)

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**Author:** [@jacyuan](https://discourse.nodered.org/u/jacyuan)\
**Replies:** 2\
**Last updated:** [27 March 2020 15:50 UTC](https://discourse.nodered.org/t/add-middleware-for-static-contents/23667 "2020-03-27T15:50:57Z")

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Hello everyone, Here is my context: We would like to use node-red server as an intermediate layer, for accessing private files. For POC purpose, we added a simple http GET file route under nodered, in order to check a…

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## [Help with Jsonata grouping please](https://discourse.nodered.org/t/help-with-jsonata-grouping-please/23616)

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**Author:** [@JayNaire](https://discourse.nodered.org/u/JayNaire)\
**Replies:** 2\
**Last updated:** [27 March 2020 14:26 UTC](https://discourse.nodered.org/t/help-with-jsonata-grouping-please/23616 "2020-03-27T14:26:22Z")

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grouping.json (97.7 KB) shows two Change Nodes using Jsonata being used to de-duplicate log entries. The first node groups & amends objects from a log by (day) date, the second strips off the date key produced by that g…

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## [LG Node Toast inklusive Icons](https://discourse.nodered.org/t/lg-node-toast-inklusive-icons/23737)

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**Author:** [@Johny1972](https://discourse.nodered.org/u/Johny1972)\
**Replies:** 0\
**Last updated:** [27 March 2020 13:49 UTC](https://discourse.nodered.org/t/lg-node-toast-inklusive-icons/23737 "2020-03-27T13:49:10Z")

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Hallo, ich steuere jetzt über Node Red meinen LG TV, vorher mit Hassio. Mit dem Node Toast kann ich Mitteilungen an den TV senden. Wie kann ich Icons in diese Mitteilung hinzu nehmen. Bislang habe ich über Hassio Mittei…

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## [How to create my own node like a small screen for chatbot](https://discourse.nodered.org/t/how-to-create-my-own-node-like-a-small-screen-for-chatbot/23686)

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**Author:** [@RavinderSingh13](https://discourse.nodered.org/u/RavinderSingh13)\
**Replies:** 4\
**Last updated:** [27 March 2020 13:38 UTC](https://discourse.nodered.org/t/how-to-create-my-own-node-like-a-small-screen-for-chatbot/23686 "2020-03-27T13:38:50Z")

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Hello Team, Greetings!! I have created a chatbot using Telegram nodes option and it works fine with my home pc(aws server),I will also share its code in future when I get sometime for sure. Problem here is Telegram is…

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## [SmartThings Motion Sensor and Flow](https://discourse.nodered.org/t/smartthings-motion-sensor-and-flow/23692)

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**Author:** [@sidneyki](https://discourse.nodered.org/u/sidneyki)\
**Replies:** 3\
**Last updated:** [27 March 2020 13:27 UTC](https://discourse.nodered.org/t/smartthings-motion-sensor-and-flow/23692 "2020-03-27T13:27:57Z")

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Hello, I am stuck on creating a flow for a Smart Things motion sensor. I am able to get a kitchen light to come on when there is motion. The issue is that when standing still the light turns off a short time later. I l…

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## [Loxone integration](https://discourse.nodered.org/t/loxone-integration/23734)

<div class="topic-metadata">

**Author:** [@teobert97](https://discourse.nodered.org/u/teobert97)\
**Replies:** 0\
**Last updated:** [27 March 2020 13:07 UTC](https://discourse.nodered.org/t/loxone-integration/23734 "2020-03-27T13:07:17Z")

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Hello everyone! Sorry for my ignorance but I would like to ask for explanations in the loxone implementation with node red. I installed mosquitto server on raspberry pi3 and, through the zigbee2mqtt module,i can read th…

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## [How display data on a table on the UI of node red](https://discourse.nodered.org/t/how-display-data-on-a-table-on-the-ui-of-node-red/23729)

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**Author:** [@Ahd](https://discourse.nodered.org/u/Ahd)\
**Replies:** 2\
**Last updated:** [27 March 2020 12:31 UTC](https://discourse.nodered.org/t/how-display-data-on-a-table-on-the-ui-of-node-red/23729 "2020-03-27T12:31:53Z")

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the data that I have from the payload shown in the figure below. I just want to dislay data on a table .... any help, please.

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## [Need help displaying data each interval](https://discourse.nodered.org/t/need-help-displaying-data-each-interval/23716)

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**Author:** [@Abata](https://discourse.nodered.org/u/Abata)\
**Replies:** 4\
**Last updated:** [27 March 2020 11:16 UTC](https://discourse.nodered.org/t/need-help-displaying-data-each-interval/23716 "2020-03-27T11:16:13Z")

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Im having trouble to display data every 5 seconds interval after using the switch node. But when i debug the node before it reaches the switch node, the output shows what its supposed to every 5 seconds. Hope you guys ca…

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## [Boolean logic or glied](https://discourse.nodered.org/t/boolean-logic-or-glied/22554)

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**Author:** [@pipapo](https://discourse.nodered.org/u/pipapo)\
**Replies:** 17\
**Last updated:** [27 March 2020 11:14 UTC](https://discourse.nodered.org/t/boolean-logic-or-glied/22554 "2020-03-27T11:14:22Z")

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Hallo, ich habe mehrer Variablen angelegt und bekomme es einfach nicht hin. Warum geht das OR nicht auf true sondern bleibt auf "unkown"? Wenn ich das erste Und Glied so lasse und das zweite UND Glied weg nehme und nu…

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## [Show image on node-red version 0.18.6](https://discourse.nodered.org/t/show-image-on-node-red-version-0-18-6/23711)

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**Author:** [@taminhhienmor](https://discourse.nodered.org/u/taminhhienmor)\
**Replies:** 0\
**Last updated:** [27 March 2020 09:04 UTC](https://discourse.nodered.org/t/show-image-on-node-red-version-0-18-6/23711 "2020-03-27T09:04:50Z")

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I was using the previous version node-red (v0.18.6). I want to show image on node as below picture, I am trying to research this cause. I was founded that function RED.comms.subscribe run success on node-red (v0.20.0) bu…

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## [Send data to pc... /dev/pts/2](https://discourse.nodered.org/t/send-data-to-pc-dev-pts-2/23702)

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**Author:** [@laulee](https://discourse.nodered.org/u/laulee)\
**Replies:** 0\
**Last updated:** [27 March 2020 01:44 UTC](https://discourse.nodered.org/t/send-data-to-pc-dev-pts-2/23702 "2020-03-27T01:44:51Z")

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I send data from arduino to node-red on Linux PC. On my pc, I open another terminal ( console.log screen is already used ) Is it possible to send data from node-red to another Terminal on PC ( eg. /dev/pts/2, or /de…

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## [Worldmap - Start lat and lon](https://discourse.nodered.org/t/worldmap-start-lat-and-lon/23646)

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**Author:** [@robo67](https://discourse.nodered.org/u/robo67)\
**Replies:** 6\
**Last updated:** [26 March 2020 23:35 UTC](https://discourse.nodered.org/t/worldmap-start-lat-and-lon/23646 "2020-03-26T23:35:23Z")

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I'm struggling with injecting a start lat and lon into the worldmap node. My GNSS receiver could be anywhere globally so when it starts feeding data into the node I'd like the map to jump to that location. At the momen…

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## [\[ANNOUNCE\] node-red-contrib-simpletime - day number of year added](https://discourse.nodered.org/t/announce-node-red-contrib-simpletime-day-number-of-year-added/23695)

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**Author:** [@Paul-Reed](https://discourse.nodered.org/u/Paul-Reed)\
**Replies:** 0\
**Last updated:** [26 March 2020 21:47 UTC](https://discourse.nodered.org/t/announce-node-red-contrib-simpletime-day-number-of-year-added/23695 "2020-03-26T21:47:56Z")

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node-red-contrib-simpletime has just been update to include msg.mydoy (my day of year) in it's output. The addition should return as a string, the day number in the current year. For example 1st January == "1", today =…

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## [Display message to the user in the Flow headers](https://discourse.nodered.org/t/display-message-to-the-user-in-the-flow-headers/23687)

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**Author:** [@Tinkermillion](https://discourse.nodered.org/u/Tinkermillion)\
**Replies:** 3\
**Last updated:** [26 March 2020 21:44 UTC](https://discourse.nodered.org/t/display-message-to-the-user-in-the-flow-headers/23687 "2020-03-26T21:44:37Z")

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I can create a static String in the header, but I want to display message to the user in the header. Is this possible ?

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## [\[ANNOUNCE\] node-red-contrib-onvif-nodes (beta 7 : event streaming)](https://discourse.nodered.org/t/announce-node-red-contrib-onvif-nodes-beta-7-event-streaming/23437)

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**Author:** [@BartButenaers](https://discourse.nodered.org/u/BartButenaers)\
**Replies:** 23\
**Last updated:** [26 March 2020 21:30 UTC](https://discourse.nodered.org/t/announce-node-red-contrib-onvif-nodes-beta-7-event-streaming/23437 "2020-03-26T21:30:51Z")

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Hi folks, Due to a lack of time the release of the previous beta version of node-red-contrib-onvif-nodes is already 13 months ago :roll\_eyes: . But now I finally managed to publish a new beta 7 version on NPM, which …

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## [Catch MSSQL node error](https://discourse.nodered.org/t/catch-mssql-node-error/23675)

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**Author:** [@coasterguru](https://discourse.nodered.org/u/coasterguru)\
**Replies:** 4\
**Last updated:** [26 March 2020 19:49 UTC](https://discourse.nodered.org/t/catch-mssql-node-error/23675 "2020-03-26T19:49:05Z")

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Hi All, I'm kind of new to this, so I'm struggling with a MSSQL Node Catch. My node red server has an unreliable connection to my SQL server that I am querying, so it often throws a connection error. If I try again, it u…

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## [Bind text in the Dashboard header](https://discourse.nodered.org/t/bind-text-in-the-dashboard-header/23656)

<div class="topic-metadata">

**Author:** [@rlamp](https://discourse.nodered.org/u/rlamp)\
**Replies:** 7\
**Last updated:** [26 March 2020 19:47 UTC](https://discourse.nodered.org/t/bind-text-in-the-dashboard-header/23656 "2020-03-26T19:47:55Z")

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I would like to display the connection status of my IoT device in the Dashboard header. I have found this flow that displays date and time in the header, but I haven't found anything that would bind the header to message…

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## [Hide line chart data series](https://discourse.nodered.org/t/hide-line-chart-data-series/23680)

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**Author:** [@sfewings](https://discourse.nodered.org/u/sfewings)\
**Replies:** 2\
**Last updated:** [26 March 2020 16:11 UTC](https://discourse.nodered.org/t/hide-line-chart-data-series/23680 "2020-03-26T16:11:19Z")

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I want to hide line chart data series programatically. I also want to find which data series have been hidden so I can load the next set of data with those same series hidden. It is possible with the underlying chart js…

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## [Stop answering to ping requests](https://discourse.nodered.org/t/stop-answering-to-ping-requests/23308)

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**Author:** [@GiovanniG](https://discourse.nodered.org/u/GiovanniG)\
**Replies:** 3\
**Last updated:** [26 March 2020 16:10 UTC](https://discourse.nodered.org/t/stop-answering-to-ping-requests/23308 "2020-03-26T16:10:19Z")

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Hi mates, I've a problem with an old videocamera (which producer refuses to correct/improve its firmware), sometimes it's internal RTP server stops working and it's needed to reboot camera to connect again to it. Luckly …

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## [Python equation to node red function](https://discourse.nodered.org/t/python-equation-to-node-red-function/23668)

<div class="topic-metadata">

**Author:** [@SmudgeMarxUK](https://discourse.nodered.org/u/SmudgeMarxUK)\
**Replies:** 8\
**Last updated:** [26 March 2020 16:06 UTC](https://discourse.nodered.org/t/python-equation-to-node-red-function/23668 "2020-03-26T16:06:03Z")

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Hi all, I'm trying to convert part of a python script, i wrote, to a node red function...but i'm struggling to find to best method to do this. I'm a super noob to coding & I'm attempting to get the basics down with Javas…

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## [Node-RED Record Foto/Video HA](https://discourse.nodered.org/t/node-red-record-foto-video-ha/23663)

<div class="topic-metadata">

**Author:** [@pedroware](https://discourse.nodered.org/u/pedroware)\
**Replies:** 9\
**Last updated:** [26 March 2020 15:35 UTC](https://discourse.nodered.org/t/node-red-record-foto-video-ha/23663 "2020-03-26T15:35:09Z")

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Hi, I have a problem sending photos and videos by telegram. Error : Call-service API error. Error Message: extra keys not allowed @ data\['0'\] Thank you, help me please !

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