# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=482

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

**Page:** 483

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## [Free Node-RED Hosting in the Cloud](https://discourse.nodered.org/t/free-node-red-hosting-in-the-cloud/52116)

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**Author:** [@rozek](https://discourse.nodered.org/u/rozek)\
**Replies:** 6\
**Last updated:** [18 October 2021 08:33 UTC](https://discourse.nodered.org/t/free-node-red-hosting-in-the-cloud/52116 "2021-10-18T08:33:35Z")

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IBM used to offer a very convenient way to host a Node-RED instance in the cloud for free - but since a few days, this offer does not exist any more (and this change is so brand new that their user interface still claims…

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## [Need help with comparing 2 csv-files (2 nodes) within a function](https://discourse.nodered.org/t/need-help-with-comparing-2-csv-files-2-nodes-within-a-function/5338)

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**Author:** [@elchmo](https://discourse.nodered.org/u/elchmo)\
**Replies:** 7\
**Last updated:** [18 October 2021 08:02 UTC](https://discourse.nodered.org/t/need-help-with-comparing-2-csv-files-2-nodes-within-a-function/5338 "2021-10-18T08:02:17Z")

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Hello guys, I'm new here(I'm a noob haha), so I don't really know how the different nodes work. My problem is: I'd like to get the difference between 2 csv-files which are both returned as arrays. So i have got 2 inpu…

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## [Connection failed to broker: mqtt ://192.168.1.8:1883](https://discourse.nodered.org/t/connection-failed-to-broker-mqtt-192-168-1-8-1883/52315)

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**Author:** [@ajaySh](https://discourse.nodered.org/u/ajaySh)\
**Replies:** 2\
**Last updated:** [18 October 2021 04:34 UTC](https://discourse.nodered.org/t/connection-failed-to-broker-mqtt-192-168-1-8-1883/52315 "2021-10-18T04:34:16Z")

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Hi Can someone help me with this. Have disabled Firewall just in case, but am not able to connect. I am sorry but i am very new at this. C:\>NOdE-Red 17 Oct 12:22:10 - \[info\] Welcome to Node-RED 17 Oct 12:22:10 - \[in…

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## [Dashboard not showing scanned objects](https://discourse.nodered.org/t/dashboard-not-showing-scanned-objects/52341)

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**Author:** [@sws\_nodered](https://discourse.nodered.org/u/sws_nodered)\
**Replies:** 0\
**Last updated:** [18 October 2021 03:36 UTC](https://discourse.nodered.org/t/dashboard-not-showing-scanned-objects/52341 "2021-10-18T03:36:11Z")

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Hi there!!!, I am new to node-red programming and I am working on a school project recently assigned to me... so please forgive me in advance if I am missing anything or using the wrong terms, I am still learning it wit…

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## [Delayed execution / one-time scheduling](https://discourse.nodered.org/t/delayed-execution-one-time-scheduling/52326)

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**Author:** [@bogorad](https://discourse.nodered.org/u/bogorad)\
**Replies:** 14\
**Last updated:** [17 October 2021 22:43 UTC](https://discourse.nodered.org/t/delayed-execution-one-time-scheduling/52326 "2021-10-17T22:43:57Z")

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I need to execute some tasks with a small delay. E.g., when a specific door opens, I get an MQTT message, and need to take a snapshot, but, say, with a 5-second delay. I don't want to use NR's blocking delays, since othe…

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## [UDP Broadcast crash](https://discourse.nodered.org/t/udp-broadcast-crash/50851)

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**Author:** [@chrisofCCL](https://discourse.nodered.org/u/chrisofCCL)\
**Replies:** 1\
**Last updated:** [17 October 2021 22:14 UTC](https://discourse.nodered.org/t/udp-broadcast-crash/50851 "2021-10-17T22:14:26Z")

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This is a strange one. I have a large flow, still WIP. It already includes a USP OUT node, which uses msg.port and msg.ip as its parameters. However, when I add another UDP OUT, this time set to broadcast I get an instan…

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## [Node-red and mapping](https://discourse.nodered.org/t/node-red-and-mapping/52335)

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**Author:** [@secs](https://discourse.nodered.org/u/secs)\
**Replies:** 0\
**Last updated:** [17 October 2021 20:31 UTC](https://discourse.nodered.org/t/node-red-and-mapping/52335 "2021-10-17T20:31:33Z")

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Hi all. I started out in Node-Red with Homeassistant and now have started to use it outside that for various things. So far I cant fault it. Currently I have it pulling data from a website and plotting it on WorldMap no…

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## [Missing flow. variables](https://discourse.nodered.org/t/missing-flow-variables/52327)

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**Author:** [@biros](https://discourse.nodered.org/u/biros)\
**Replies:** 4\
**Last updated:** [17 October 2021 19:27 UTC](https://discourse.nodered.org/t/missing-flow-variables/52327 "2021-10-17T19:27:18Z")

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Hello, While I have quite a few, flow variables disappeared. Version 2.0.6; Am I doing something wrong? I haven't really changed anything node red wise in the last couple of months just updated it continuously. Tod…

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## [Time Triggered Inject Ussie](https://discourse.nodered.org/t/time-triggered-inject-ussie/52260)

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**Author:** [@Calendil](https://discourse.nodered.org/u/Calendil)\
**Replies:** 4\
**Last updated:** [17 October 2021 14:16 UTC](https://discourse.nodered.org/t/time-triggered-inject-ussie/52260 "2021-10-17T14:16:52Z")

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Hello All, I am having an issue with specific time triggered inject node. It triggers may be once out of 20 tries whenever I set it up on upcoming time. It is not triggering on specific time and day. I flat out importe…

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## [Help understanding http in output](https://discourse.nodered.org/t/help-understanding-http-in-output/52320)

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**Author:** [@spoopy](https://discourse.nodered.org/u/spoopy)\
**Replies:** 5\
**Last updated:** [17 October 2021 11:40 UTC](https://discourse.nodered.org/t/help-understanding-http-in-output/52320 "2021-10-17T11:40:05Z")

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Hello, new to node red and struggling to understanding how to to deal with the output of a webhook posting to an http in node The payload comes out as a buffer which when converted to a string looks like: --931efb49-f…

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## [Maybe change the UI on import copy dialog?](https://discourse.nodered.org/t/maybe-change-the-ui-on-import-copy-dialog/52316)

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**Author:** [@cymplecy](https://discourse.nodered.org/u/cymplecy)\
**Replies:** 0\
**Last updated:** [17 October 2021 08:30 UTC](https://discourse.nodered.org/t/maybe-change-the-ui-on-import-copy-dialog/52316 "2021-10-17T08:30:15Z")

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I was re-importing a flow via clipboard and ended up with this dialog and I found it confusing - nothing new there :slight\_smile: Just referring to my win8 node (which is MQTT config) I eventually realised that I had…

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## [Pi-top-4 mini OLED & buttons from node red](https://discourse.nodered.org/t/pi-top-4-mini-oled-buttons-from-node-red/52313)

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**Author:** [@m\_elias](https://discourse.nodered.org/u/m_elias)\
**Replies:** 1\
**Last updated:** [17 October 2021 05:45 UTC](https://discourse.nodered.org/t/pi-top-4-mini-oled-buttons-from-node-red/52313 "2021-10-17T05:45:22Z")

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Has anyone run Node Red on a pi-top-4? I have it going using the regular Pi installation script. Now I'm wondering if there's already some nodes to access the mini OLED and buttons. I think there's a API so I expect it'l…

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## [Memory leak in modbus flow](https://discourse.nodered.org/t/memory-leak-in-modbus-flow/15422)

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**Author:** [@josekavunkal](https://discourse.nodered.org/u/josekavunkal)\
**Replies:** 13\
**Last updated:** [17 October 2021 01:46 UTC](https://discourse.nodered.org/t/memory-leak-in-modbus-flow/15422 "2021-10-17T01:46:41Z")

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I working on a Modbus TCP flow . When the network is slow Node-red is consuming more and more memory . if there a chance for Queue formation in these nodes and it consumes more memory?. What is the best way to find me…

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## [Pool Relays Using Raspberry PI and Node Red](https://discourse.nodered.org/t/pool-relays-using-raspberry-pi-and-node-red/51864)

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**Author:** [@timothyha22](https://discourse.nodered.org/u/timothyha22)\
**Replies:** 17\
**Last updated:** [17 October 2021 01:26 UTC](https://discourse.nodered.org/t/pool-relays-using-raspberry-pi-and-node-red/51864 "2021-10-17T01:26:19Z")

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Hey everyone, I am new to node red and raspberry but have been working in tech for many years. I have built a simple system to automate my pool controls and it is working great. What I am struggling with is building a s…

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## [Html input from table with images](https://discourse.nodered.org/t/html-input-from-table-with-images/52308)

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**Author:** [@RogierQ](https://discourse.nodered.org/u/RogierQ)\
**Replies:** 2\
**Last updated:** [16 October 2021 20:37 UTC](https://discourse.nodered.org/t/html-input-from-table-with-images/52308 "2021-10-16T20:37:15Z")

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Hi! Trying to create a html page with iamges that sends a payload to nr. Found some examples but cannot get it to work that it sends the id as a payload. Can somebody help me to tell me what i do wrong? My flow is be…

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## [Azure docker settings.js location](https://discourse.nodered.org/t/azure-docker-settings-js-location/52301)

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**Author:** [@ulysses.codes](https://discourse.nodered.org/u/ulysses.codes)\
**Replies:** 4\
**Last updated:** [16 October 2021 17:57 UTC](https://discourse.nodered.org/t/azure-docker-settings-js-location/52301 "2021-10-16T17:57:26Z")

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When pulling the latest docker image onto an Azure container instance, the settings file ends up in the user directory instead of the mounted file share at /data. Any way to avoid this so settings.js is on the file shar…

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## [Pie in the sky: Front-end programming with Node-RED](https://discourse.nodered.org/t/pie-in-the-sky-front-end-programming-with-node-red/51887)

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**Author:** [@mdkrieg](https://discourse.nodered.org/u/mdkrieg)\
**Replies:** 5\
**Last updated:** [6 October 2021 20:43 UTC](https://discourse.nodered.org/t/pie-in-the-sky-front-end-programming-with-node-red/51887 "2021-10-06T20:43:12Z")

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Hello, I have this idea burning a hole in my head, and since I've no time to work on it I need to write it up so I can focus on other things. I'll walk through my thinking in bullet-points: In essence, Node-RED is ju…

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## [Pasting into Monaco Editor Query](https://discourse.nodered.org/t/pasting-into-monaco-editor-query/52235)

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**Author:** [@Buckskin](https://discourse.nodered.org/u/Buckskin)\
**Replies:** 19\
**Last updated:** [16 October 2021 13:51 UTC](https://discourse.nodered.org/t/pasting-into-monaco-editor-query/52235 "2021-10-16T13:51:16Z")

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I have undoubtedly missed something somewhere but whenever I paste JavaScript into the Monaco editor any formatting is lost. What should I be doing to retain any format?

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## [Create variable from loop array](https://discourse.nodered.org/t/create-variable-from-loop-array/52291)

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**Author:** [@ketpa](https://discourse.nodered.org/u/ketpa)\
**Replies:** 1\
**Last updated:** [16 October 2021 12:38 UTC](https://discourse.nodered.org/t/create-variable-from-loop-array/52291 "2021-10-16T12:38:47Z")

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I have array array = \[t1,t2,t3 ...\] How to create variable from this array like var t1 var t2; var t3; or add string to variable like: variable\_t1, variable\_t2 ect

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## [Code=killed, Status=4/ILL General](https://discourse.nodered.org/t/code-killed-status-4-ill-general/51195)

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**Author:** [@Rcrdo](https://discourse.nodered.org/u/Rcrdo)\
**Replies:** 24\
**Last updated:** [15 October 2021 20:37 UTC](https://discourse.nodered.org/t/code-killed-status-4-ill-general/51195 "2021-10-15T20:37:55Z")

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I have this problem Sep 13 22:59:19 arm sudo\[4115\]: pam\_unix(sudo:session): session opened for user root by (uid=0) Sep 13 22:59:19 arm Node-RED\[3164\]: 13 Sep 22:59:19 - \[warn\] \[function:ADD ACTION SESSION\] Num cara di…

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## [InfluxDB on a Raspberry Pi](https://discourse.nodered.org/t/influxdb-on-a-raspberry-pi/742)

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**Author:** [@ghayne](https://discourse.nodered.org/u/ghayne)\
**Replies:** 66\
**Last updated:** [16 October 2021 08:29 UTC](https://discourse.nodered.org/t/influxdb-on-a-raspberry-pi/742 "2021-10-16T08:29:43Z")

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This is not strictly Node-Red related but I know that several people here are using InfluxDB on a Raspberry Pi in conjunction with Grafana to store data created/extracted by Node-Red. I discovered accidentally that Inf…

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## [Inject node properties from mysql](https://discourse.nodered.org/t/inject-node-properties-from-mysql/52285)

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**Author:** [@ketpa](https://discourse.nodered.org/u/ketpa)\
**Replies:** 1\
**Last updated:** [16 October 2021 06:45 UTC](https://discourse.nodered.org/t/inject-node-properties-from-mysql/52285 "2021-10-16T06:45:27Z")

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I want to set parameter from mysql or external function How?

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## [Translation of Curl command to HTTP Request](https://discourse.nodered.org/t/translation-of-curl-command-to-http-request/52101)

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**Author:** [@mudwalker](https://discourse.nodered.org/u/mudwalker)\
**Replies:** 17\
**Last updated:** [15 October 2021 17:00 UTC](https://discourse.nodered.org/t/translation-of-curl-command-to-http-request/52101 "2021-10-15T17:00:06Z")

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Hi, Looking for some help, Trying to talk to a GL.iNet Router and having problems. I am just not grasping this - it should be so simple!! I have been trying to convert a Curl command (which does work) to an HTTP Reque…

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## [Receiving empty body from fiware post request](https://discourse.nodered.org/t/receiving-empty-body-from-fiware-post-request/52269)

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**Author:** [@gonza97](https://discourse.nodered.org/u/gonza97)\
**Replies:** 0\
**Last updated:** [15 October 2021 15:02 UTC](https://discourse.nodered.org/t/receiving-empty-body-from-fiware-post-request/52269 "2021-10-15T15:02:29Z")

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Hi, I am trying to use a custom node to recive a post request from fiware orion but the body of the request is empty. This is the code i use for the request: This is what i receive: I have tried to use the http i…

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## [CPU skyrocketing to 100% with exec node using SLEEP function \< 1.0sec, but all good (1-5%) when SLEEP \>= 1.0sec](https://discourse.nodered.org/t/cpu-skyrocketing-to-100-with-exec-node-using-sleep-function-1-0sec-but-all-good-1-5-when-sleep-1-0sec/52203)

<div class="topic-metadata">

**Author:** [@janedoe123](https://discourse.nodered.org/u/janedoe123)\
**Replies:** 21\
**Last updated:** [15 October 2021 08:00 UTC](https://discourse.nodered.org/t/cpu-skyrocketing-to-100-with-exec-node-using-sleep-function-1-0sec-but-all-good-1-5-when-sleep-1-0sec/52203 "2021-10-15T08:00:33Z")

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Hi All, I am facing a blocking issue with Node-RED. I need to use an exec node which calls a function written in C++, and that contains a SLEEP function. When the sleep is \>= 1.0 sec, the Node-RED's CPU usage is all g…

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## [Cannot access Gist of example flow in library](https://discourse.nodered.org/t/cannot-access-gist-of-example-flow-in-library/52239)

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**Author:** [@rozek](https://discourse.nodered.org/u/rozek)\
**Replies:** 3\
**Last updated:** [15 October 2021 12:47 UTC](https://discourse.nodered.org/t/cannot-access-gist-of-example-flow-in-library/52239 "2021-10-15T12:47:25Z")

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I just tried to add my first example flow to the Node-RED library - and failed. Text looks fine, but I am unable to insert images by URL since modern browsers complain about CORB or CSP violations when trying to display…

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## [Error after nodes reinstalled](https://discourse.nodered.org/t/error-after-nodes-reinstalled/52182)

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**Author:** [@puteramelaka](https://discourse.nodered.org/u/puteramelaka)\
**Replies:** 12\
**Last updated:** [15 October 2021 11:17 UTC](https://discourse.nodered.org/t/error-after-nodes-reinstalled/52182 "2021-10-15T11:17:05Z")

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hello friends, recently out of sudden the flow of node-red is not working due to missing nodes after i have installed and deploy the nodes is missing, when i add up the nodes i guess error occured. \[{"id":"64915f…

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## [Node red speech to text unexpected end to json input](https://discourse.nodered.org/t/node-red-speech-to-text-unexpected-end-to-json-input/52246)

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**Author:** [@Kamui](https://discourse.nodered.org/u/Kamui)\
**Replies:** 1\
**Last updated:** [15 October 2021 09:51 UTC](https://discourse.nodered.org/t/node-red-speech-to-text-unexpected-end-to-json-input/52246 "2021-10-15T09:51:38Z")

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yeah, the title says it, here are a few pictures of the stuff:

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## [UI layer automatically start?](https://discourse.nodered.org/t/ui-layer-automatically-start/52241)

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**Author:** [@byramozgn](https://discourse.nodered.org/u/byramozgn)\
**Replies:** 4\
**Last updated:** [15 October 2021 06:39 UTC](https://discourse.nodered.org/t/ui-layer-automatically-start/52241 "2021-10-15T06:39:29Z")

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Hello, I installed node-red on my computer. How can I turn on the UI layer automatically when the computer boots up.

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## [GPS Tracker (TK102) flow](https://discourse.nodered.org/t/gps-tracker-tk102-flow/8776)

<div class="topic-metadata">

**Author:** [@bakman2](https://discourse.nodered.org/u/bakman2)\
**Replies:** 3\
**Last updated:** [15 October 2021 05:37 UTC](https://discourse.nodered.org/t/gps-tracker-tk102-flow/8776 "2021-10-15T05:37:52Z")

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I have a GPRS based GPS tracker, which can talk to a custom server using tcp/udp. In php I can get this thing to talk properly, but in Node Red I have some issues. It uses a specific protocol, it sends "logon requests"…

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