# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=599

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

**Page:** 600

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## [Bluetooth testing](https://discourse.nodered.org/t/bluetooth-testing/41476)

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**Author:** [@DSongra11\_forum.com](https://discourse.nodered.org/u/DSongra11_forum.com)\
**Replies:** 2\
**Last updated:** [23 February 2021 12:33 UTC](https://discourse.nodered.org/t/bluetooth-testing/41476 "2021-02-23T12:33:47Z")

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Hello, I have Hilscher netPI Industrial grade raspberry pi module, I have installed node-red V1.2.2. I tried to run bluetooth node and tried to scan BLE devices, device get detected but after deploying Node red flow I a…

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## [Calcular tiempo](https://discourse.nodered.org/t/calcular-tiempo/41480)

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**Author:** [@novato1221](https://discourse.nodered.org/u/novato1221)\
**Replies:** 1\
**Last updated:** [23 February 2021 12:40 UTC](https://discourse.nodered.org/t/calcular-tiempo/41480 "2021-02-23T12:40:19Z")

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Hola a todos, estoy realizando un programa en el que introduzco la hora y estado de una máquina en una base de datos. El estado que se envía es 1 cuando funciona y 0 si se ha parado. Posteriormente realizo una consulta p…

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## [Long time delays](https://discourse.nodered.org/t/long-time-delays/41472)

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**Author:** [@ErmakovSergey](https://discourse.nodered.org/u/ErmakovSergey)\
**Replies:** 2\
**Last updated:** [23 February 2021 12:20 UTC](https://discourse.nodered.org/t/long-time-delays/41472 "2021-02-23T12:20:00Z")

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What's the best way to implement long delays (days, months) with persisting messages between reboots

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## [Etable dynamic editorparam](https://discourse.nodered.org/t/etable-dynamic-editorparam/41153)

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**Author:** [@JuananJG](https://discourse.nodered.org/u/JuananJG)\
**Replies:** 9\
**Last updated:** [23 February 2021 11:15 UTC](https://discourse.nodered.org/t/etable-dynamic-editorparam/41153 "2021-02-23T11:15:02Z")

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hi guys, I need to select one option in etable, but this option is dynamic and arrive in the message. static option: dyanmic option:(this is example) \[{"id":"dc82b683.d8aa18","type":"function","z":"cd4a9cc8.24c9a…

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## [Forward complete Message Object to MQTT](https://discourse.nodered.org/t/forward-complete-message-object-to-mqtt/41470)

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**Author:** [@habnefrage](https://discourse.nodered.org/u/habnefrage)\
**Replies:** 3\
**Last updated:** [23 February 2021 11:10 UTC](https://discourse.nodered.org/t/forward-complete-message-object-to-mqtt/41470 "2021-02-23T11:10:51Z")

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Hi, i am playing with Node-Red on a raspberrymatic. I receive messages from rpc-event (when windo opens or shutter closes or so). I connected this block to the MQTT sender. It all works and I can receive the values fro…

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## [Split function causes Type error](https://discourse.nodered.org/t/split-function-causes-type-error/17429)

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**Author:** [@vman](https://discourse.nodered.org/u/vman)\
**Replies:** 4\
**Last updated:** [23 February 2021 10:43 UTC](https://discourse.nodered.org/t/split-function-causes-type-error/17429 "2021-02-23T10:43:09Z")

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Hi all, in my flow I receive messages via TCP. The payload is for example 1:::Hello World Now I want to split the payload into an array where array\[0\] = 1 and array\[1\] = Hello World. I do so by using a function. The i…

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## [Want to install my system node red to another system](https://discourse.nodered.org/t/want-to-install-my-system-node-red-to-another-system/41420)

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**Author:** [@akhtar321h](https://discourse.nodered.org/u/akhtar321h)\
**Replies:** 9\
**Last updated:** [23 February 2021 10:10 UTC](https://discourse.nodered.org/t/want-to-install-my-system-node-red-to-another-system/41420 "2021-02-23T10:10:47Z")

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Hello Everyone, I want to install my system node red to different machines. Is there any possible way to install all packages and settings same as my system. I have gone through electron-node-red and node-red-desktop b…

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## [Advice needed: Job handler with backup](https://discourse.nodered.org/t/advice-needed-job-handler-with-backup/41433)

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**Author:** [@OriolFM](https://discourse.nodered.org/u/OriolFM)\
**Replies:** 8\
**Last updated:** [23 February 2021 10:04 UTC](https://discourse.nodered.org/t/advice-needed-job-handler-with-backup/41433 "2021-02-23T10:04:53Z")

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I've been using node-red to monitor data from a few dozen machines in an industrial plant. Some of these machines are loaders that get the material from a carrier rack and put it into a production line, or unloaders that…

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## [Mapping a specific data of an array of properties in JSON](https://discourse.nodered.org/t/mapping-a-specific-data-of-an-array-of-properties-in-json/41092)

<div class="topic-metadata">

**Author:** [@vongomben](https://discourse.nodered.org/u/vongomben)\
**Replies:** 9\
**Last updated:** [23 February 2021 08:43 UTC](https://discourse.nodered.org/t/mapping-a-specific-data-of-an-array-of-properties-in-json/41092 "2021-02-23T08:43:16Z")

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Hi andthanks in advance for your help. I think I'm crashing of my javascript weaknesses, and I'm always trying to avoid functions. In this case I am injecting a JSON with with one object, and multiple objects. For one…

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## [SSH Server not available?](https://discourse.nodered.org/t/ssh-server-not-available/41369)

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**Author:** [@alexander77](https://discourse.nodered.org/u/alexander77)\
**Replies:** 5\
**Last updated:** [23 February 2021 01:04 UTC](https://discourse.nodered.org/t/ssh-server-not-available/41369 "2021-02-23T01:04:57Z")

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I have a program that emulates a device which is relative expensive. It worked fine as long as the connection was established by a simple Telnet-like TCP connection. Now the manufacturer has decidet to switch to secure c…

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## [Flows.nodered.org error Cloudflare. Inaccessible! - fixed](https://discourse.nodered.org/t/flows-nodered-org-error-cloudflare-inaccessible-fixed/41450)

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**Author:** [@ricovdh](https://discourse.nodered.org/u/ricovdh)\
**Replies:** 2\
**Last updated:** [22 February 2021 21:45 UTC](https://discourse.nodered.org/t/flows-nodered-org-error-cloudflare-inaccessible-fixed/41450 "2021-02-22T21:45:03Z")

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Cannot acces https://flows.nodered.org/ anymore. Is Node-Red using Cloudflare services? Just noticed this about 30 minutes ago..

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## [Extract multiple variables from a JSON object](https://discourse.nodered.org/t/extract-multiple-variables-from-a-json-object/3554)

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**Author:** [@nodecentral](https://discourse.nodered.org/u/nodecentral)\
**Replies:** 19\
**Last updated:** [22 February 2021 20:59 UTC](https://discourse.nodered.org/t/extract-multiple-variables-from-a-json-object/3554 "2021-02-22T20:59:02Z")

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Hi, Please could someone help me to extract a number of variable values from a JSON object returned by my home automation controller - please see screen shot attached To start with I’m looking to extract the values you…

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## [Flow "conflicts"](https://discourse.nodered.org/t/flow-conflicts/41118)

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**Author:** [@Nutti85](https://discourse.nodered.org/u/Nutti85)\
**Replies:** 9\
**Last updated:** [22 February 2021 18:18 UTC](https://discourse.nodered.org/t/flow-conflicts/41118 "2021-02-22T18:18:38Z")

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Disclaimer: This is my first post here and I might use some wrong terms, I'm not a coder. I'm trying to create circadian light flows based on this tutorial. My problem is that there is some sort of conflict so that whe…

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## [Message Payload - Split](https://discourse.nodered.org/t/message-payload-split/41400)

<div class="topic-metadata">

**Author:** [@Gerry-it](https://discourse.nodered.org/u/Gerry-it)\
**Replies:** 8\
**Last updated:** [22 February 2021 17:18 UTC](https://discourse.nodered.org/t/message-payload-split/41400 "2021-02-22T17:18:35Z")

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Hello I'm using the node-red-contrib-tfjs-coco-ssd node for object detection. The msg.payload is an array with objects and other arrays inside and looks like this: \[ {"bbox":\[97.20104217529297,303.84454250335693,736.6…

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## [Reading Arduino serial data into node red via usb](https://discourse.nodered.org/t/reading-arduino-serial-data-into-node-red-via-usb/41410)

<div class="topic-metadata">

**Author:** [@AllenSlaghuis](https://discourse.nodered.org/u/AllenSlaghuis)\
**Replies:** 7\
**Last updated:** [22 February 2021 14:12 UTC](https://discourse.nodered.org/t/reading-arduino-serial-data-into-node-red-via-usb/41410 "2021-02-22T14:12:56Z")

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Good day All. I am new to the node red system and i use openhab. as fisialatition of my home automation. now i am trying to use nano's as sensor breakouts on my server to monitor my server room the serial link via usb w…

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## [Alexa + node red +android + alexa](https://discourse.nodered.org/t/alexa-node-red-android-alexa/41390)

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**Author:** [@pambucol](https://discourse.nodered.org/u/pambucol)\
**Replies:** 2\
**Last updated:** [22 February 2021 14:03 UTC](https://discourse.nodered.org/t/alexa-node-red-android-alexa/41390 "2021-02-22T14:03:16Z")

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Hello, I was able to install node red on an old Android phone I have and I was also able to install all sort of nodes including: node-red-contrib-amazon-echo node-red-contrib-alexa-remote2 All looks fine and on my PC…

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## [Warning message to the admin](https://discourse.nodered.org/t/warning-message-to-the-admin/41431)

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**Author:** [@fmarzocca](https://discourse.nodered.org/u/fmarzocca)\
**Replies:** 1\
**Last updated:** [22 February 2021 14:00 UTC](https://discourse.nodered.org/t/warning-message-to-the-admin/41431 "2021-02-22T14:00:46Z")

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Hi, I am wondering if there is a way to achieve this: each time an admin drags a particular node from the palette to the flow area, he should be warned with a message (notification?), but not at every deploy. Only the f…

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## [High frequency data, disfunction of nodes](https://discourse.nodered.org/t/high-frequency-data-disfunction-of-nodes/41298)

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**Author:** [@see\_sw](https://discourse.nodered.org/u/see_sw)\
**Replies:** 9\
**Last updated:** [22 February 2021 13:24 UTC](https://discourse.nodered.org/t/high-frequency-data-disfunction-of-nodes/41298 "2021-02-22T13:24:48Z")

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Hi, I'm testing a NodeRed (1.2.7) Flow with data from an acceleration sensor with 2000Hz. The custom sensor-node has several outputs, which deliver data for acc\_x, acc\_y, acc\_z. The sensor sends data packages of 16 val…

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## [Status Monitor Maschinepark Siemens IOT2040](https://discourse.nodered.org/t/status-monitor-maschinepark-siemens-iot2040/41423)

<div class="topic-metadata">

**Author:** [@spranz](https://discourse.nodered.org/u/spranz)\
**Replies:** 0\
**Last updated:** [22 February 2021 12:35 UTC](https://discourse.nodered.org/t/status-monitor-maschinepark-siemens-iot2040/41423 "2021-02-22T12:35:28Z")

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Hello i´m from germany, so sorry for my bad englisch :laughing: I have done my first steps under nodered to collect data from different plc´s and transfer them to a database. Now i have an new project, i want to retrof…

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## [How to convert array byte to ASCII](https://discourse.nodered.org/t/how-to-convert-array-byte-to-ascii/6607)

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**Author:** [@aargollo](https://discourse.nodered.org/u/aargollo)\
**Replies:** 37\
**Last updated:** [22 February 2021 11:33 UTC](https://discourse.nodered.org/t/how-to-convert-array-byte-to-ascii/6607 "2021-02-22T11:33:51Z")

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Guys Happy new year! I working in my device and need to decode a array byte to ASCII stream, like you can see below: I using let param1 = msg.payload\[28\], for example to get a byte. I need to create a variable that …

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## [Telegram receiver receives only messages starting with /](https://discourse.nodered.org/t/telegram-receiver-receives-only-messages-starting-with/41412)

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**Author:** [@loeten](https://discourse.nodered.org/u/loeten)\
**Replies:** 2\
**Last updated:** [22 February 2021 10:58 UTC](https://discourse.nodered.org/t/telegram-receiver-receives-only-messages-starting-with/41412 "2021-02-22T10:58:42Z")

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Hi there, after a longer time I want to make some adjustments to my Telegram connection. For test, I have just connected a receiver and sender and a debug pad. It receives /responds only messages starting with a "/" - …

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## [Running Node Red under Docker file path](https://discourse.nodered.org/t/running-node-red-under-docker-file-path/41408)

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**Author:** [@sefaguntepe](https://discourse.nodered.org/u/sefaguntepe)\
**Replies:** 4\
**Last updated:** [22 February 2021 09:18 UTC](https://discourse.nodered.org/t/running-node-red-under-docker-file-path/41408 "2021-02-22T09:18:45Z")

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I'm running Node Red under Docker. I want to create a file with "alasql" plugin. But what should I write to the file path?

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## [Custom auto-completer of ace editor](https://discourse.nodered.org/t/custom-auto-completer-of-ace-editor/41399)

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**Author:** [@chiche](https://discourse.nodered.org/u/chiche)\
**Replies:** 0\
**Last updated:** [22 February 2021 06:46 UTC](https://discourse.nodered.org/t/custom-auto-completer-of-ace-editor/41399 "2021-02-22T06:46:10Z")

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I have a custom node using editor javascript. I want to customize the auto-completer in my node. I modify as below: this.editor = function (id, value, defaultValue) { ... mode: "ace/mode/javascript", } this.editor.com…

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## [CSV format issues](https://discourse.nodered.org/t/csv-format-issues/41059)

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**Author:** [@Chumbo](https://discourse.nodered.org/u/Chumbo)\
**Replies:** 22\
**Last updated:** [22 February 2021 03:10 UTC](https://discourse.nodered.org/t/csv-format-issues/41059 "2021-02-22T03:10:45Z")

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Hello, I'm trying to read the csv data seen below, but for each 'WorkOrderNumber' there is multiple rows. I need the 'userid' number to be in the same row as the rest of the info... can I join these somewhow? I need t…

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## [Custom user authentication help](https://discourse.nodered.org/t/custom-user-authentication-help/40967)

<div class="topic-metadata">

**Author:** [@mac5562](https://discourse.nodered.org/u/mac5562)\
**Replies:** 7\
**Last updated:** [22 February 2021 00:39 UTC](https://discourse.nodered.org/t/custom-user-authentication-help/40967 "2021-02-22T00:39:34Z")

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Hi ! Is there anyone who knows, how it can be use the custom user authentication? I tried with the example (with little modification of course) but it not works. Here is my custom js: module.exports = { type: "cred…

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## [All nearly hour a restart ... any idea](https://discourse.nodered.org/t/all-nearly-hour-a-restart-any-idea/41380)

<div class="topic-metadata">

**Author:** [@Donni1966](https://discourse.nodered.org/u/Donni1966)\
**Replies:** 3\
**Last updated:** [21 February 2021 18:58 UTC](https://discourse.nodered.org/t/all-nearly-hour-a-restart-any-idea/41380 "2021-02-21T18:58:36Z")

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Hi together, i have a problem with node-red news version, but also in the privios version. i found this in the longs ... but i am not really understand this to try a solve. So i hope one of your guys can give me a tip…

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## [Problem with dashboard layout editor](https://discourse.nodered.org/t/problem-with-dashboard-layout-editor/41377)

<div class="topic-metadata">

**Author:** [@mshaz](https://discourse.nodered.org/u/mshaz)\
**Replies:** 2\
**Last updated:** [21 February 2021 15:55 UTC](https://discourse.nodered.org/t/problem-with-dashboard-layout-editor/41377 "2021-02-21T15:55:47Z")

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Hi I need help. When I pressed the 'Done' button , it doesn't close the layout editor. It hangs the browser. I tried 3 different browser, clear cache and cookies the problem doesn't resolve. I even uninstall and reinst…

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## [Point me in the right direction to Parse TCP string](https://discourse.nodered.org/t/point-me-in-the-right-direction-to-parse-tcp-string/41375)

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**Author:** [@Vonksmurf](https://discourse.nodered.org/u/Vonksmurf)\
**Replies:** 2\
**Last updated:** [21 February 2021 15:43 UTC](https://discourse.nodered.org/t/point-me-in-the-right-direction-to-parse-tcp-string/41375 "2021-02-21T15:43:13Z")

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I try to parse the string below . I think it is possible with the contrib-buffer-parser node but i don\`t understand the working of the node completly If header 1 is 100 then there is a error \[1,49,53,2,48,49,31,49,48,…

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## [Ask google for sensor data](https://discourse.nodered.org/t/ask-google-for-sensor-data/39398)

<div class="topic-metadata">

**Author:** [@martynwheeler](https://discourse.nodered.org/u/martynwheeler)\
**Replies:** 10\
**Last updated:** [21 February 2021 11:11 UTC](https://discourse.nodered.org/t/ask-google-for-sensor-data/39398 "2021-02-21T11:11:58Z")

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Hi, I have google home talking to my node-red flow using the library (node-red-contrib-alexa-smart-home (node) - Node-RED). It is great for switching on outlets and lights but it currently can't get sensor data. I was …

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## [Is alexa-remote2 still working?](https://discourse.nodered.org/t/is-alexa-remote2-still-working/41366)

<div class="topic-metadata">

**Author:** [@fmarzocca](https://discourse.nodered.org/u/fmarzocca)\
**Replies:** 1\
**Last updated:** [20 February 2021 22:55 UTC](https://discourse.nodered.org/t/is-alexa-remote2-still-working/41366 "2021-02-20T22:55:04Z")

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I am asking this because I have just spent hours trying to let it work with no success. I have carefully checked every setting I made, I have checked that the cookie file is correctly saved and accessible. But I am stil…

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