# Latest

**URL:** https://discourse.nodered.org/latest.md?page=952

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

**Page:** 953

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## [Uibuilder + A-frame](https://discourse.nodered.org/t/uibuilder-a-frame/36019)

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**Author:** [@Danxsia](https://discourse.nodered.org/u/Danxsia)\
**Replies:** 9\
**Last updated:** [18 November 2020 05:19 UTC](https://discourse.nodered.org/t/uibuilder-a-frame/36019 "2020-11-18T05:19:13Z")

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Hello All, I'm new in the forum and not so experienced with node red, im trying for the first time the uibuilder node and seems very powerful. Someone has already used it with a-frame for virtual/augmented reality? I wo…

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## [Best practice to call functions?](https://discourse.nodered.org/t/best-practice-to-call-functions/36103)

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**Author:** [@Norberg95](https://discourse.nodered.org/u/Norberg95)\
**Replies:** 1\
**Last updated:** [17 November 2020 23:32 UTC](https://discourse.nodered.org/t/best-practice-to-call-functions/36103 "2020-11-17T23:32:30Z")

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Currently I have an app and I embedded node-red. I am making nodes for Classes in my app, and when I am adding a node to the flow, a new instance of the class is initialized. What is the best practice to call the class …

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## [Building an interactive floorplan using uibuilder](https://discourse.nodered.org/t/building-an-interactive-floorplan-using-uibuilder/33378)

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**Author:** [@alex88](https://discourse.nodered.org/u/alex88)\
**Replies:** 5\
**Last updated:** [17 November 2020 23:28 UTC](https://discourse.nodered.org/t/building-an-interactive-floorplan-using-uibuilder/33378 "2020-11-17T23:28:26Z")

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This post is an extract from a long thread (Floor plan suggestions) which documented my journey in building an interactive floor plan using uibuilder. The project is a work in progress, however all will be explained in t…

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## [Debugging in JS](https://discourse.nodered.org/t/debugging-in-js/36105)

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**Author:** [@alex88](https://discourse.nodered.org/u/alex88)\
**Replies:** 0\
**Last updated:** [17 November 2020 23:21 UTC](https://discourse.nodered.org/t/debugging-in-js/36105 "2020-11-17T23:21:21Z")

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Hi @knolleary I notice you just posted a topic on v1.2.4 of Node-RED here. Great to see the code based continue to be developed. Well done! I was having a conversation with someone who is starting to experiment with No…

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## [Loop for stops after 99 flow](https://discourse.nodered.org/t/loop-for-stops-after-99-flow/36093)

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**Author:** [@fabien](https://discourse.nodered.org/u/fabien)\
**Replies:** 16\
**Last updated:** [17 November 2020 22:51 UTC](https://discourse.nodered.org/t/loop-for-stops-after-99-flow/36093 "2020-11-17T22:51:29Z")

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Hello, I simulated a for loop, as shown in the forum. But the loop ends after 99 flow: \[{"id":"bef94100.efd14","type":"function","z":"ced45fb2.1ebde","name":"","func":"var C = context.get('C')||0;\\nif(msg.payload && C\<…

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## [Knowing and controlling state of 4 states lamp. Already stuck on boolean logic](https://discourse.nodered.org/t/knowing-and-controlling-state-of-4-states-lamp-already-stuck-on-boolean-logic/36097)

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**Author:** [@MikiZed](https://discourse.nodered.org/u/MikiZed)\
**Replies:** 5\
**Last updated:** [17 November 2020 22:22 UTC](https://discourse.nodered.org/t/knowing-and-controlling-state-of-4-states-lamp-already-stuck-on-boolean-logic/36097 "2020-11-17T22:22:47Z")

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I am going to give you way more context that you probably need to help me because I feel like executing things the way I immagine is kind of dumb for Node-RED and more suitable to a programming language like C. In my ho…

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## [Instant Hot Water Panel](https://discourse.nodered.org/t/instant-hot-water-panel/36098)

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**Author:** [@alex88](https://discourse.nodered.org/u/alex88)\
**Replies:** 0\
**Last updated:** [17 November 2020 21:45 UTC](https://discourse.nodered.org/t/instant-hot-water-panel/36098 "2020-11-17T21:45:31Z")

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I have been quiet for some time since posting my first uibuilder/VueJS project here: This is not because I am not continuing to develop my home automation dashboards, but because I have become self-sufficient on the No…

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## [Code ENOLOCAL Error when installing Node: mpu9250](https://discourse.nodered.org/t/code-enolocal-error-when-installing-node-mpu9250/36066)

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**Author:** [@andrea](https://discourse.nodered.org/u/andrea)\
**Replies:** 6\
**Last updated:** [17 November 2020 21:32 UTC](https://discourse.nodered.org/t/code-enolocal-error-when-installing-node-mpu9250/36066 "2020-11-17T21:32:58Z")

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Hi, Only when I try to install this module, I get this error: there is a simple explanation (Never had something like it): pi@raspberrypi:~/.node-red $ npm install /path/to/node-red-contrib-mpu9250 npm ERR! code ENOLO…

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## [Http request with http aouth01 to get a binary buffer](https://discourse.nodered.org/t/http-request-with-http-aouth01-to-get-a-binary-buffer/36081)

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**Author:** [@mohamedEmadEldien](https://discourse.nodered.org/u/mohamedEmadEldien)\
**Replies:** 19\
**Last updated:** [17 November 2020 21:26 UTC](https://discourse.nodered.org/t/http-request-with-http-aouth01-to-get-a-binary-buffer/36081 "2020-11-17T21:26:29Z")

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I want to create an endpoint API to display the image in Twitter DM like in this URL I tried to make a request using HTTP request but it's not working because it needs oauth01 I also tried oauth 01 node it's retrievin…

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## [Date formatting](https://discourse.nodered.org/t/date-formatting/36057)

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**Author:** [@teixeira\_5213](https://discourse.nodered.org/u/teixeira_5213)\
**Replies:** 14\
**Last updated:** [17 November 2020 16:59 UTC](https://discourse.nodered.org/t/date-formatting/36057 "2020-11-17T16:59:14Z")

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Hello guys. I'm new to the red node and needed some help. I created the two flows below and created a table in the red node with SQLite to store my values away and I can't format the timestamp for a value with dd.hh.mm.…

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## [Can't see what is happening](https://discourse.nodered.org/t/cant-see-what-is-happening/36072)

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**Author:** [@hengia7](https://discourse.nodered.org/u/hengia7)\
**Replies:** 9\
**Last updated:** [17 November 2020 20:04 UTC](https://discourse.nodered.org/t/cant-see-what-is-happening/36072 "2020-11-17T20:04:23Z")

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I am new to Node-Red and MQTT and RPi. I have created some small test flows and they seem to work as expected. I now have a programme on an ESP8266 which is supposed to control an LED and display temperature and humidi…

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## [Screen touchable nodes?](https://discourse.nodered.org/t/screen-touchable-nodes/35963)

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**Author:** [@RASelkirk](https://discourse.nodered.org/u/RASelkirk)\
**Replies:** 17\
**Last updated:** [17 November 2020 18:35 UTC](https://discourse.nodered.org/t/screen-touchable-nodes/35963 "2020-11-17T18:35:09Z")

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Hi All, My pi is gonna be locked away inside a plastic enclosure by the driveway, so I'm thinking about methods to reboot if needed. Can be done by command-line (normal) or GPIO pins if the pi is locked up. Either way, …

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## [Building "queue" and Processing by timestamp?](https://discourse.nodered.org/t/building-queue-and-processing-by-timestamp/36021)

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**Author:** [@guny74](https://discourse.nodered.org/u/guny74)\
**Replies:** 2\
**Last updated:** [17 November 2020 18:29 UTC](https://discourse.nodered.org/t/building-queue-and-processing-by-timestamp/36021 "2020-11-17T18:29:56Z")

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Hello, I want to build create/store "object"/ messages with in a flow, give them an individual timestamp and process these messages/"object" when the time (of timestamp) reached. Here: specially I want to create "alar…

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## [Get events from google Calendar with the goole-node - again](https://discourse.nodered.org/t/get-events-from-google-calendar-with-the-goole-node-again/36078)

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**Author:** [@Hanibal\_Smith](https://discourse.nodered.org/u/Hanibal_Smith)\
**Replies:** 0\
**Last updated:** [17 November 2020 17:17 UTC](https://discourse.nodered.org/t/get-events-from-google-calendar-with-the-goole-node-again/36078 "2020-11-17T17:17:08Z")

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hi everyone, i'm new in theme node red, but i have some programming skills an i can interpret some programm codes. I want to create a dashboard with some sensor values and the next events from my google calendar. I fo…

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## [Showing two icons on Worldmap](https://discourse.nodered.org/t/showing-two-icons-on-worldmap/36067)

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**Author:** [@bachloo.rahul](https://discourse.nodered.org/u/bachloo.rahul)\
**Replies:** 5\
**Last updated:** [17 November 2020 14:57 UTC](https://discourse.nodered.org/t/showing-two-icons-on-worldmap/36067 "2020-11-17T14:57:08Z")

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one of the trackers having device eui ending with 02 is facing issue in parsing through the buffer parser. Range issue don't understand why becoz both the trackers are in line of sight to the sky. \[{"id":"f1c3712a.516…

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## [How to split an incoming string by character count](https://discourse.nodered.org/t/how-to-split-an-incoming-string-by-character-count/36063)

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**Author:** [@pandapilot](https://discourse.nodered.org/u/pandapilot)\
**Replies:** 5\
**Last updated:** [17 November 2020 13:51 UTC](https://discourse.nodered.org/t/how-to-split-an-incoming-string-by-character-count/36063 "2020-11-17T13:51:00Z")

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I've got a string coming into nodered from an external piece of equipment that I can't change. This is an example of what it shows on a debug node: 14711/17/20 12:53:10RUN 11/17/20 13:09:50MEURO26 SAMPLE5000 …

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## [I think I need machine learning, do you agree?](https://discourse.nodered.org/t/i-think-i-need-machine-learning-do-you-agree/35619)

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**Author:** [@thebaldgeek](https://discourse.nodered.org/u/thebaldgeek)\
**Replies:** 21\
**Last updated:** [17 November 2020 12:54 UTC](https://discourse.nodered.org/t/i-think-i-need-machine-learning-do-you-agree/35619 "2020-11-17T12:54:08Z")

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Over the past 5+ years I have built an extensive aircraft tracking/decoding website around Node-RED. As time goes on, I am spending more and more time writing custom function block code to decode each type of string / t…

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## [Cannot GET /example on Docker](https://discourse.nodered.org/t/cannot-get-example-on-docker/13614)

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**Author:** [@markkus.rosa](https://discourse.nodered.org/u/markkus.rosa)\
**Replies:** 1\
**Last updated:** [17 November 2020 12:33 UTC](https://discourse.nodered.org/t/cannot-get-example-on-docker/13614 "2020-11-17T12:33:49Z")

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I need to access a url inside a container www.example.com/example but I get this error Cannot GET /example I'm trying to access to thet a System hooks. That will be placed in the /example The url example.com is ok. …

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## [Not seeing coordinates on worldmap](https://discourse.nodered.org/t/not-seeing-coordinates-on-worldmap/36000)

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**Author:** [@bachloo.rahul](https://discourse.nodered.org/u/bachloo.rahul)\
**Replies:** 27\
**Last updated:** [17 November 2020 11:18 UTC](https://discourse.nodered.org/t/not-seeing-coordinates-on-worldmap/36000 "2020-11-17T11:18:53Z")

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\[{"id":"b2c925db.9b5638","type":"tab","label":"Flow 2","disabled":false,"info":""},{"id":"ac27147f.1ecc58","type":"buffer-parser","z":"b2c925db.9b5638","name":"Bulid Tags","data":"payload","dataType":"msg","specification…

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## [mdashboard-Create multi-users](https://discourse.nodered.org/t/mdashboard-create-multi-users/8222)

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**Author:** [@hebergeweb](https://discourse.nodered.org/u/hebergeweb)\
**Replies:** 6\
**Last updated:** [17 November 2020 12:17 UTC](https://discourse.nodered.org/t/mdashboard-create-multi-users/8222 "2020-11-17T12:17:52Z")

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I'm trying to use node-red to create a multi-user dashboard, the idea is that the dashboard has different session, each for a different user. A user must be identificated by the system and can't reach the dashboard resou…

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## [\[error\] \[function:ad5d176.511d5e8\] RangeError: Maximum call stack size exceeded](https://discourse.nodered.org/t/error-function-ad5d176-511d5e8-rangeerror-maximum-call-stack-size-exceeded/35813)

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**Author:** [@akhtar321h](https://discourse.nodered.org/u/akhtar321h)\
**Replies:** 2\
**Last updated:** [17 November 2020 11:57 UTC](https://discourse.nodered.org/t/error-function-ad5d176-511d5e8-rangeerror-maximum-call-stack-size-exceeded/35813 "2020-11-17T11:57:44Z")

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Hello Everyone, I am working with modbus-RTU. It is working fine but after some time I am getting this error ( \[error\] \[function:ad5d176.511d5e8\] RangeError: Maximum call stack size exceeded). Please help me out to res…

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## [QGIS maps into dashboard](https://discourse.nodered.org/t/qgis-maps-into-dashboard/36054)

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**Author:** [@marwa4](https://discourse.nodered.org/u/marwa4)\
**Replies:** 0\
**Last updated:** [17 November 2020 11:24 UTC](https://discourse.nodered.org/t/qgis-maps-into-dashboard/36054 "2020-11-17T11:24:52Z")

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hello, is it possible to load a map made by QGIS into a node-red dashboard? the map will contain live data, has anybody worked on something like that? thanks for the help

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## [Ui\_numeric - how does it maintain state across browser refresh](https://discourse.nodered.org/t/ui-numeric-how-does-it-maintain-state-across-browser-refresh/35595)

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**Author:** [@ozpos](https://discourse.nodered.org/u/ozpos)\
**Replies:** 6\
**Last updated:** [17 November 2020 11:00 UTC](https://discourse.nodered.org/t/ui-numeric-how-does-it-maintain-state-across-browser-refresh/35595 "2020-11-17T11:00:32Z")

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Hi, all. What options are available to achieve the same behaviour with a ui\_template ? One method I know goes like this: Within ui\_template listen for a commands 'get\_state' and 'set\_state'. Write code to action tho…

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## [Node-red-contrib-ui-time-scheduler problem](https://discourse.nodered.org/t/node-red-contrib-ui-time-scheduler-problem/34360)

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**Author:** [@mariulin](https://discourse.nodered.org/u/mariulin)\
**Replies:** 11\
**Last updated:** [17 November 2020 09:20 UTC](https://discourse.nodered.org/t/node-red-contrib-ui-time-scheduler-problem/34360 "2020-11-17T09:20:50Z")

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I was making some try with node-red-contrib-ui-time-scheduler and all was OK. Then I've upgaraded the node to version 0.2.2 and now I'm no more able to click over the + sign to add events. Someone has the same problem? …

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## [Change Node Red Icon on Mobile phone](https://discourse.nodered.org/t/change-node-red-icon-on-mobile-phone/36043)

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**Author:** [@IOT\_Explorer](https://discourse.nodered.org/u/IOT_Explorer)\
**Replies:** 4\
**Last updated:** [17 November 2020 09:12 UTC](https://discourse.nodered.org/t/change-node-red-icon-on-mobile-phone/36043 "2020-11-17T09:12:24Z")

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Hi Guys, I'm new to node red and I just started using Node red for my projects and it is amazing. However is there any way that you could teach me how the change the icon in the mobile phone to my own icon. Thank you v…

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## [No dubug message in sidebar when using readBigInt64BE](https://discourse.nodered.org/t/no-dubug-message-in-sidebar-when-using-readbigint64be/36040)

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**Author:** [@izebigyo](https://discourse.nodered.org/u/izebigyo)\
**Replies:** 2\
**Last updated:** [17 November 2020 08:48 UTC](https://discourse.nodered.org/t/no-dubug-message-in-sidebar-when-using-readbigint64be/36040 "2020-11-17T08:48:17Z")

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Hello, I discovered an interesting behavior in node red. I'm using the node-red-contrib-modbus pallete and its modbus-server node to read data from a modbus tcp. Debugging its output with the debug node works fine. Whe…

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## [QR code scanner (and decoder) in the browser](https://discourse.nodered.org/t/qr-code-scanner-and-decoder-in-the-browser/35988)

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**Author:** [@janvda](https://discourse.nodered.org/u/janvda)\
**Replies:** 3\
**Last updated:** [17 November 2020 07:03 UTC](https://discourse.nodered.org/t/qr-code-scanner-and-decoder-in-the-browser/35988 "2020-11-17T07:03:02Z")

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I would like to create a QR code scanner in the browser. A more precise description of my use case: On my smartphone I am opening my node-red dashboard in a (chrome) browser. On that dashboard I have a button "QR-code…

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## [Using 'javascript-color-gradient' in node red function node?](https://discourse.nodered.org/t/using-javascript-color-gradient-in-node-red-function-node/36037)

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**Author:** [@Nodi.Rubrum](https://discourse.nodered.org/u/Nodi.Rubrum)\
**Replies:** 1\
**Last updated:** [17 November 2020 05:46 UTC](https://discourse.nodered.org/t/using-javascript-color-gradient-in-node-red-function-node/36037 "2020-11-17T05:46:42Z")

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I installed the gradient module I want to use... $ npm install javascript-color-gradient I set the module in settings.js file... functionGlobalContext: { os:require('os'), i2c:require('i2c-bus'), …

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## [ESP32-CAM Streaming issue](https://discourse.nodered.org/t/esp32-cam-streaming-issue/35651)

<div class="topic-metadata">

**Author:** [@jacquesAYX](https://discourse.nodered.org/u/jacquesAYX)\
**Replies:** 3\
**Last updated:** [17 November 2020 05:25 UTC](https://discourse.nodered.org/t/esp32-cam-streaming-issue/35651 "2020-11-17T05:25:31Z")

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I was able to run and stream the ESP32-CAM perfectly fine. However when I tried linking the stream to a Node Red template from node-red-dashboard, the stream does not pop up. Would appreciate it if anyone could enligh…

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## [Subflow parameter credential type](https://discourse.nodered.org/t/subflow-parameter-credential-type/35835)

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**Author:** [@supercross99](https://discourse.nodered.org/u/supercross99)\
**Replies:** 2\
**Last updated:** [17 November 2020 04:41 UTC](https://discourse.nodered.org/t/subflow-parameter-credential-type/35835 "2020-11-17T04:41:01Z")

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Hello, first post on here. Am I missing the feature that was supposed to be introduced in 1.1.0 where subflow parameters can be set to a credential type? I found a related post stating that it'd be in 1.1.0: reference …

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