# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=734

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

**Page:** 735

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## [File node not working on windows](https://discourse.nodered.org/t/file-node-not-working-on-windows/28204)

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**Author:** [@korre](https://discourse.nodered.org/u/korre)\
**Replies:** 1\
**Last updated:** [11 June 2020 21:50 UTC](https://discourse.nodered.org/t/file-node-not-working-on-windows/28204 "2020-06-11T21:50:46Z")

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Hello, i try to save text in a file on windows. it is not possible to save any msg.payload into a file. any suggestions?

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## [Raspberry Pi & ADS 1x15 simple flow](https://discourse.nodered.org/t/raspberry-pi-ads-1x15-simple-flow/28198)

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**Author:** [@nlebidakis](https://discourse.nodered.org/u/nlebidakis)\
**Replies:** 1\
**Last updated:** [11 June 2020 21:16 UTC](https://discourse.nodered.org/t/raspberry-pi-ads-1x15-simple-flow/28198 "2020-06-11T21:16:23Z")

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Hello there , i am new to node red and i am trying to set up a simple task . I have connected to my Raspberry Pi a ADS1x15 ADC with a CT clamp and i am trying to measure current( AC) .I am getting data in my node red flo…

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## [Get element switch node](https://discourse.nodered.org/t/get-element-switch-node/27974)

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**Author:** [@Marty1982](https://discourse.nodered.org/u/Marty1982)\
**Replies:** 41\
**Last updated:** [11 June 2020 21:03 UTC](https://discourse.nodered.org/t/get-element-switch-node/27974 "2020-06-11T21:03:48Z")

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Hi All node-reder's! I been messing around with the switch node and i'm stuck getting the element described with the screenshot below. I want to get the lined elements and make a switch conditions with them, but for on…

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## [Email with 3 attachments?](https://discourse.nodered.org/t/email-with-3-attachments/28110)

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**Author:** [@mattk](https://discourse.nodered.org/u/mattk)\
**Replies:** 6\
**Last updated:** [11 June 2020 20:51 UTC](https://discourse.nodered.org/t/email-with-3-attachments/28110 "2020-06-11T20:51:51Z")

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Hi, I have a flow that triggers from a PIR sensor then 3 cameras take a picture, then email it to me. This is working, however it sends 3 emails with 1 attachment each. I'd like it to be a single email with 3 attachments…

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## [Configuration twitter with node-red](https://discourse.nodered.org/t/configuration-twitter-with-node-red/28197)

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**Author:** [@henriquemartelli](https://discourse.nodered.org/u/henriquemartelli)\
**Replies:** 0\
**Last updated:** [11 June 2020 19:10 UTC](https://discourse.nodered.org/t/configuration-twitter-with-node-red/28197 "2020-06-11T19:10:41Z")

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can someone help me by sending a simple test stream? 1- I already created the twitter developer account, and I already got the tokens. 2- I configured the entry of my users and tokens in node-red 3- appears connected,…

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## [Graph course to fine](https://discourse.nodered.org/t/graph-course-to-fine/28111)

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**Author:** [@Becker](https://discourse.nodered.org/u/Becker)\
**Replies:** 9\
**Last updated:** [11 June 2020 17:38 UTC](https://discourse.nodered.org/t/graph-course-to-fine/28111 "2020-06-11T17:38:07Z")

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Hello. My course is too fine, can I adjust the graph (input) so that it is not updated every 2-seconds, but only every minute ??

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## [\[Solved\] Debug sidebar clearing at random times](https://discourse.nodered.org/t/solved-debug-sidebar-clearing-at-random-times/28183)

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**Author:** [@zenofmud](https://discourse.nodered.org/u/zenofmud)\
**Replies:** 4\
**Last updated:** [11 June 2020 16:45 UTC](https://discourse.nodered.org/t/solved-debug-sidebar-clearing-at-random-times/28183 "2020-06-11T16:45:06Z")

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MacMini - macOS v10.14.6 Node-RED version: v1.0.6 Node.js version: v12.13.0 Darwin 18.7.0 x64 LE Dashboard version 2.22.1 started at /ui Every now and then my debug sidebar clears itself. One moment there are a bunc…

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## [\[Discourse\] Immediately detect BLE module wake](https://discourse.nodered.org/t/discourse-immediately-detect-ble-module-wake/28188)

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**Author:** [@adamhun94](https://discourse.nodered.org/u/adamhun94)\
**Replies:** 0\
**Last updated:** [11 June 2020 16:26 UTC](https://discourse.nodered.org/t/discourse-immediately-detect-ble-module-wake/28188 "2020-06-11T16:26:25Z")

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Description My ultimate plan is to create a coin cell battery powered BT switch (push button) which sends data for my RPi. For that purpose I have bought a nrf52832 based BLE module and successfully programmed it. Since…

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## [Filter to get only some data from msg.payload: string](https://discourse.nodered.org/t/filter-to-get-only-some-data-from-msg-payload-string/28174)

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**Author:** [@pwgrau](https://discourse.nodered.org/u/pwgrau)\
**Replies:** 7\
**Last updated:** [11 June 2020 15:10 UTC](https://discourse.nodered.org/t/filter-to-get-only-some-data-from-msg-payload-string/28174 "2020-06-11T15:10:27Z")

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Hello, I have this data via mqtt and I want to take it to an influxdb to graph it in a grafana, the values ​​that arrive in the graph are this whole chain, and I just need to get temperature and humidity data in number: …

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## [TypeError: Cannot read property 't' of undefined](https://discourse.nodered.org/t/typeerror-cannot-read-property-t-of-undefined/27557)

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**Author:** [@DemonKing](https://discourse.nodered.org/u/DemonKing)\
**Replies:** 20\
**Last updated:** [11 June 2020 14:46 UTC](https://discourse.nodered.org/t/typeerror-cannot-read-property-t-of-undefined/27557 "2020-06-11T14:46:20Z")

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node-red-contrib-filebrowser When i try to connect throws this error please find a solution for this thanks

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## [UIbuilder - dynamically changing images](https://discourse.nodered.org/t/uibuilder-dynamically-changing-images/28169)

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**Author:** [@tarsel](https://discourse.nodered.org/u/tarsel)\
**Replies:** 4\
**Last updated:** [11 June 2020 12:20 UTC](https://discourse.nodered.org/t/uibuilder-dynamically-changing-images/28169 "2020-06-11T12:20:39Z")

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Hi all I am creating a simple device dashboard using UIbuilder as this allows me to serve a very basic html page. (I have a more complex page built using node-red dashboard.) Within UIbuilder I have dynamically updated …

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## [Change payload topic](https://discourse.nodered.org/t/change-payload-topic/28167)

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**Author:** [@christian19](https://discourse.nodered.org/u/christian19)\
**Replies:** 3\
**Last updated:** [11 June 2020 11:36 UTC](https://discourse.nodered.org/t/change-payload-topic/28167 "2020-06-11T11:36:52Z")

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Embarrassing enough I have no idea how to change a topic on a message. I have tried the change node without luck. So, I get the following message, and want to change the topic to "value". : msg.payload : number 1006 W…

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## [How to remove a node (package) published on flows.nodered.org](https://discourse.nodered.org/t/how-to-remove-a-node-package-published-on-flows-nodered-org/28130)

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**Author:** [@RaviKaushish](https://discourse.nodered.org/u/RaviKaushish)\
**Replies:** 3\
**Last updated:** [11 June 2020 11:00 UTC](https://discourse.nodered.org/t/how-to-remove-a-node-package-published-on-flows-nodered-org/28130 "2020-06-11T11:00:11Z")

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Hello, I published a node-red node package on https://flows.nodered.org/, but I want to completely remove it from there and make it unavailble in the public catalogue. how can I do that? quick help would be appreciate…

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## [Update package from GitHub version](https://discourse.nodered.org/t/update-package-from-github-version/28162)

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**Author:** [@mikel.garmendia](https://discourse.nodered.org/u/mikel.garmendia)\
**Replies:** 1\
**Last updated:** [11 June 2020 10:58 UTC](https://discourse.nodered.org/t/update-package-from-github-version/28162 "2020-06-11T10:58:13Z")

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Hello! I am using node-red-contrib-google-iot-core package in Node-RED. That package I installed from Manage palette. I have the version 0.0.4 from this package because is the newest version in Manage palette. In the G…

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## [adminAuth.users\[\].\*.permissions: array or string?](https://discourse.nodered.org/t/adminauth-users-permissions-array-or-string/28164)

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**Author:** [@Redhatter](https://discourse.nodered.org/u/Redhatter)\
**Replies:** 2\
**Last updated:** [11 June 2020 10:54 UTC](https://discourse.nodered.org/t/adminauth-users-permissions-array-or-string/28164 "2020-06-11T10:54:25Z")

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Hi all, A silly question, I've been trying to get a custom HTTP end-point for a node working -- this has an endpoint which lists what serial ports are available (should be a familiar problem). My endpoint code looks li…

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## [Can I send CTRL-ALT-l from a node?](https://discourse.nodered.org/t/can-i-send-ctrl-alt-l-from-a-node/28140)

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**Author:** [@SteveMann](https://discourse.nodered.org/u/SteveMann)\
**Replies:** 2\
**Last updated:** [11 June 2020 10:53 UTC](https://discourse.nodered.org/t/can-i-send-ctrl-alt-l-from-a-node/28140 "2020-06-11T10:53:47Z")

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Can I send CTRL+ALT+l from a node? I use an inject node (inject on start) to play a tone on the PC speaker to give me an audible alert that the Deploy is finished. I would like to start with my debug log blank. So, ca…

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## [Can node-red node/flow run in parallel?](https://discourse.nodered.org/t/can-node-red-node-flow-run-in-parallel/7678)

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**Author:** [@fangzhu](https://discourse.nodered.org/u/fangzhu)\
**Replies:** 29\
**Last updated:** [11 June 2020 10:18 UTC](https://discourse.nodered.org/t/can-node-red-node-flow-run-in-parallel/7678 "2020-06-11T10:18:34Z")

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I am new to Node-RED. I found that all javascript codes written in the node are processed in sequence in a flow (even using async function like setTimeout etc). This is also the same case among flows. Is Node-RED single…

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## [Version restore under nodered](https://discourse.nodered.org/t/version-restore-under-nodered/28165)

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**Author:** [@jacyuan](https://discourse.nodered.org/u/jacyuan)\
**Replies:** 0\
**Last updated:** [11 June 2020 09:53 UTC](https://discourse.nodered.org/t/version-restore-under-nodered/28165 "2020-06-11T09:53:02Z")

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Hi, In our project, we have different nodered instances under different environments (dev, prod, etc). I'm wondering what's the best way to restore / publish flows from one nodered to another. (let's suppose here that…

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## [Node-Red running in Azure Container Instances](https://discourse.nodered.org/t/node-red-running-in-azure-container-instances/28154)

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**Author:** [@tobiaspe](https://discourse.nodered.org/u/tobiaspe)\
**Replies:** 0\
**Last updated:** [11 June 2020 07:07 UTC](https://discourse.nodered.org/t/node-red-running-in-azure-container-instances/28154 "2020-06-11T07:07:34Z")

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I am trying to deploy Node-Red in the easiest way possible to a Docker container. I have tried starting a Docker container and pulling an Node-Red image from Docker Hub on my local machine which works fine. I can then a…

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## [Extract data - Alpha vantage](https://discourse.nodered.org/t/extract-data-alpha-vantage/28099)

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**Author:** [@christian19](https://discourse.nodered.org/u/christian19)\
**Replies:** 1\
**Last updated:** [10 June 2020 06:32 UTC](https://discourse.nodered.org/t/extract-data-alpha-vantage/28099 "2020-06-10T06:32:12Z")

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Hi! I'm not getting my head around how to extract data from the output from the Alpha vantage stock addon. I would be very grateful if someone could help me in the right direction. The output from the addon is: {"data…

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## [Error message (and super slow load times) on first Node-red instance](https://discourse.nodered.org/t/error-message-and-super-slow-load-times-on-first-node-red-instance/27685)

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**Author:** [@AndyDufresne422](https://discourse.nodered.org/u/AndyDufresne422)\
**Replies:** 8\
**Last updated:** [11 June 2020 00:54 UTC](https://discourse.nodered.org/t/error-message-and-super-slow-load-times-on-first-node-red-instance/27685 "2020-06-11T00:54:23Z")

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Hi everyone, thank you in advanced for any help. Noob here... Just did a clean install of node red on a raspi 3 (and raspi 2) after experiencing extremely slow load times \[which was new after having run node-red on both…

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## [How to deal with Serial In Node which shows two buffers simultaneously](https://discourse.nodered.org/t/how-to-deal-with-serial-in-node-which-shows-two-buffers-simultaneously/28127)

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**Author:** [@Waled22](https://discourse.nodered.org/u/Waled22)\
**Replies:** 12\
**Last updated:** [11 June 2020 00:21 UTC](https://discourse.nodered.org/t/how-to-deal-with-serial-in-node-which-shows-two-buffers-simultaneously/28127 "2020-06-11T00:21:17Z")

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Hi, Is there any way to combine these two buffers which are coming out of a serial in node simultaneously. The device which is sending this serial data sometimes sends the whole buffer (which is desirable ) but sometime…

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## [How can i filter data table (ui\_table) by date?](https://discourse.nodered.org/t/how-can-i-filter-data-table-ui-table-by-date/28122)

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**Author:** [@DAVIDLL](https://discourse.nodered.org/u/DAVIDLL)\
**Replies:** 6\
**Last updated:** [10 June 2020 18:05 UTC](https://discourse.nodered.org/t/how-can-i-filter-data-table-ui-table-by-date/28122 "2020-06-10T18:05:43Z")

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Hi! i'm trying to display some values from a mysql DB in a table that contains various columns (first one is the date), and i achieved to show the table in the dashboard. I added the "date" node to the table but i do not…

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## [JSON array parse](https://discourse.nodered.org/t/json-array-parse/28131)

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**Author:** [@WatskeBart](https://discourse.nodered.org/u/WatskeBart)\
**Replies:** 8\
**Last updated:** [10 June 2020 18:02 UTC](https://discourse.nodered.org/t/json-array-parse/28131 "2020-06-10T18:02:21Z")

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Hi all, I'm fairly new to Node-RED and totally unfamiliar with javascript. Who can help me with my code? I'm trying to parse a WooCommerce webhook and send some information to my phone thru join (joaoapps). I searched…

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## [Detect if fridge door (contcat sensor) stays open](https://discourse.nodered.org/t/detect-if-fridge-door-contcat-sensor-stays-open/27835)

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**Author:** [@P4W3L](https://discourse.nodered.org/u/P4W3L)\
**Replies:** 11\
**Last updated:** [10 June 2020 16:16 UTC](https://discourse.nodered.org/t/detect-if-fridge-door-contcat-sensor-stays-open/27835 "2020-06-10T16:16:27Z")

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Hi, typical problem (at least for me :slight\_smile:): The fridge door stays open to long or is not properly closed. My idea: Adding a contact sensor to the fridge door and create a simple flow which detects it and sen…

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## [Delay logic request for suggestions](https://discourse.nodered.org/t/delay-logic-request-for-suggestions/27995)

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**Author:** [@tmichaeltx](https://discourse.nodered.org/u/tmichaeltx)\
**Replies:** 10\
**Last updated:** [10 June 2020 15:50 UTC](https://discourse.nodered.org/t/delay-logic-request-for-suggestions/27995 "2020-06-10T15:50:10Z")

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Background I am storing static information about IOT items in a google sheet. I have a process to read that information into a global variable and then use that variable as a local data source. As I add new IOT devices,…

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## [Remove 'tail' node from node-red](https://discourse.nodered.org/t/remove-tail-node-from-node-red/28125)

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**Author:** [@edoardottt](https://discourse.nodered.org/u/edoardottt)\
**Replies:** 2\
**Last updated:** [10 June 2020 15:39 UTC](https://discourse.nodered.org/t/remove-tail-node-from-node-red/28125 "2020-06-10T15:39:11Z")

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Hi! I would like to remove the tail node. I know there is the nodesExcludes array and in fact I added 28-tail.js to the array; but it doesn't disappear. I noticed tail isn't a node inserted in the node\_modules/@node-re…

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## [Appending Special Characters to flow](https://discourse.nodered.org/t/appending-special-characters-to-flow/28112)

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**Author:** [@aidan](https://discourse.nodered.org/u/aidan)\
**Replies:** 2\
**Last updated:** [10 June 2020 13:43 UTC](https://discourse.nodered.org/t/appending-special-characters-to-flow/28112 "2020-06-10T13:43:17Z")

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I have to sum two streams of ASCII data, 'STX'-'ASCII message'-'ETX' one of them has redundant data so I need to 'parse and pass' Should be easy, first two characters of 'ASCII message' are always 'M0' length is fixed, s…

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## [Node-RED frequent crashing - "Connection Lost X"](https://discourse.nodered.org/t/node-red-frequent-crashing-connection-lost-x/27288)

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**Author:** [@Jude.Robise](https://discourse.nodered.org/u/Jude.Robise)\
**Replies:** 5\
**Last updated:** [10 June 2020 13:05 UTC](https://discourse.nodered.org/t/node-red-frequent-crashing-connection-lost-x/27288 "2020-06-10T13:05:36Z")

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Dear all, I have been experiencing frequent Node-RED crashings in Industrial Panel PCs (Windows 10 64bit based) that we use to automate different systems. Since Node-RED should be running in the background always, I hav…

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## [Variable control Zwave thermostat](https://discourse.nodered.org/t/variable-control-zwave-thermostat/7272)

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**Author:** [@pinie\_pinie](https://discourse.nodered.org/u/pinie_pinie)\
**Replies:** 8\
**Last updated:** [10 June 2020 12:42 UTC](https://discourse.nodered.org/t/variable-control-zwave-thermostat/7272 "2020-06-10T12:42:51Z")

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Hello, I set the temperature on my Zwave thermostat with this command (Picture 1). This works without problems. Now I want to replace the fixed value ("26") with a variable. A slider is used to set a variable value. Th…

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