**Author:** [@plcnodered](https://discourse.nodered.org/u/plcnodered)\
**Replies:** 1\
**Last updated:** [24 February 2021 14:21 UTC](https://discourse.nodered.org/t/working-with-button/41560 "2021-02-24T14:21:42Z")
Normal, I want my button value is false. When I pressing my button, value = true, when i release my button, value=false. Help me. Thank.
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## [Button with 2 functions](https://discourse.nodered.org/t/button-with-2-functions/41547)
**Author:** [@sfedo](https://discourse.nodered.org/u/sfedo)\
**Replies:** 2\
**Last updated:** [24 February 2021 13:07 UTC](https://discourse.nodered.org/t/button-with-2-functions/41547 "2021-02-24T13:07:17Z")
Hello, I'm trying to use one same button on 2 different ways. My payload from the button is usually 0, it is for moving to my first tab with the ui\_control. So when the button is pressed the user moves to tab 0. Now I…
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## [Tcp in with fixed size instead of delimiter](https://discourse.nodered.org/t/tcp-in-with-fixed-size-instead-of-delimiter/41542)
**Author:** [@jogibear9988](https://discourse.nodered.org/u/jogibear9988)\
**Replies:** 0\
**Last updated:** [24 February 2021 12:04 UTC](https://discourse.nodered.org/t/tcp-in-with-fixed-size-instead-of-delimiter/41542 "2021-02-24T12:04:02Z")
is it possible to use "tcp in" with fixed size instead of delimiter ?
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## [How to combine 2 arrays into 1?](https://discourse.nodered.org/t/how-to-combine-2-arrays-into-1/41414)
**Author:** [@Gino\_Schreuders](https://discourse.nodered.org/u/Gino_Schreuders)\
**Replies:** 13\
**Last updated:** [24 February 2021 12:03 UTC](https://discourse.nodered.org/t/how-to-combine-2-arrays-into-1/41414 "2021-02-24T12:03:51Z")
Dear reader, I'm a IT student and I'm pretty new to Node-Red. I would like to merge 2 arrays into 1 using a function. Here is my flow: \[{"id":"49b7aeb2.4e263","type":"tab","label":"Flow 3","disabled":false,"info":""},…
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## [Help with combine 2 functions](https://discourse.nodered.org/t/help-with-combine-2-functions/41532)
**Author:** [@sfedo](https://discourse.nodered.org/u/sfedo)\
**Replies:** 3\
**Last updated:** [24 February 2021 10:21 UTC](https://discourse.nodered.org/t/help-with-combine-2-functions/41532 "2021-02-24T10:21:15Z")
Hello, I would like to combine two functions, but I have difficulties with it. I have the two functions: \ function myFunction(x) { if (x.matches) { // If media query matches window.location.r…
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## [Failed to start server on windows 10](https://discourse.nodered.org/t/failed-to-start-server-on-windows-10/41537)
**Author:** [@essability](https://discourse.nodered.org/u/essability)\
**Replies:** 2\
**Last updated:** [24 February 2021 09:56 UTC](https://discourse.nodered.org/t/failed-to-start-server-on-windows-10/41537 "2021-02-24T09:56:11Z")
24 Feb 09:41:29 - \[info\] Welcome to Node-RED 24 Feb 09:41:29 - \[info\] Node-RED version: v1.0.6 24 Feb 09:41:29 - \[info\] Node.js version: v12.18.0 24 Feb 09:41:29 - \[info\] Windows\_NT 10.0.18363 x64 LE 24 Feb 09:41:30…
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## [Failure(Bad value)](https://discourse.nodered.org/t/failure-bad-value/41531)
**Author:** [@Ward](https://discourse.nodered.org/u/Ward)\
**Replies:** 2\
**Last updated:** [24 February 2021 09:51 UTC](https://discourse.nodered.org/t/failure-bad-value/41531 "2021-02-24T09:51:51Z")
Hi, When i looked at the node red debug screen i saw the following: But i don't find from wich node the problem is coming. If i click on "node: 49611514.d5bd4c" i get directed to my configuration nodes but i can't fi…
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## [Get multiple charts from json file](https://discourse.nodered.org/t/get-multiple-charts-from-json-file/41435)
**Author:** [@kapusticka](https://discourse.nodered.org/u/kapusticka)\
**Replies:** 33\
**Last updated:** [24 February 2021 09:49 UTC](https://discourse.nodered.org/t/get-multiple-charts-from-json-file/41435 "2021-02-24T09:49:19Z")
Hi, I have a json file, which I want to process to multiple charts.my file looks like this: ({"teplota":10.5678,"vlhkost":65.891,"oblacnost":0,"vietor":0,"tlak":1028.18,"smer":"JZ","pocitovo":9.24,"pocasie":"01d","vycho…
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## [Http control of a Marantz Amplifier](https://discourse.nodered.org/t/http-control-of-a-marantz-amplifier/41448)
**Author:** [@gadjet](https://discourse.nodered.org/u/gadjet)\
**Replies:** 5\
**Last updated:** [24 February 2021 08:44 UTC](https://discourse.nodered.org/t/http-control-of-a-marantz-amplifier/41448 "2021-02-24T08:44:22Z")
Hi, I just installed the Marantz http control node, I realise it's quite old now but has anyone got this working? I have an NR1510 Receiver and I can view and control it from my browser on its IP address and port 10443 …
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## [Is there a node-red backend engine?](https://discourse.nodered.org/t/is-there-a-node-red-backend-engine/41403)
**Author:** [@ddk](https://discourse.nodered.org/u/ddk)\
**Replies:** 11\
**Last updated:** [24 February 2021 07:37 UTC](https://discourse.nodered.org/t/is-there-a-node-red-backend-engine/41403 "2021-02-24T07:37:40Z")
Hi I just started using node-red recently. Is there such a back-end engine that can directly parse the node-red workflow? In this way, workflow design and debugging can be done in the cloud, and then directly deployed …
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## [Missing node error on "npm install" of custom node](https://discourse.nodered.org/t/missing-node-error-on-npm-install-of-custom-node/41309)
**Author:** [@jtaylor](https://discourse.nodered.org/u/jtaylor)\
**Replies:** 15\
**Last updated:** [24 February 2021 07:16 UTC](https://discourse.nodered.org/t/missing-node-error-on-npm-install-of-custom-node/41309 "2021-02-24T07:16:42Z")
When I do an npm command to install/update a custom node, I'm getting an error regarding a missing node. I created and installed the sample red-contrib-example-lower-case node. I have subsequently removed that node, bu…
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## [Ui\_table formatting and cell input](https://discourse.nodered.org/t/ui-table-formatting-and-cell-input/41351)
**Author:** [@notnice](https://discourse.nodered.org/u/notnice)\
**Replies:** 8\
**Last updated:** [24 February 2021 07:09 UTC](https://discourse.nodered.org/t/ui-table-formatting-and-cell-input/41351 "2021-02-24T07:09:05Z")
Starting with the basics of table formatting - just trying to turn off table header in inject function on an existing table: msg.ui\_control = {}; msg.ui\_control.tabulator = { "headerVisible": false } return msg.ui\_cont…
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## [NPM install of kevinGodell / node-red-contrib-ui-mp4frag](https://discourse.nodered.org/t/npm-install-of-kevingodell-node-red-contrib-ui-mp4frag/41523)
**Author:** [@afiq93](https://discourse.nodered.org/u/afiq93)\
**Replies:** 1\
**Last updated:** [24 February 2021 06:02 UTC](https://discourse.nodered.org/t/npm-install-of-kevingodell-node-red-contrib-ui-mp4frag/41523 "2021-02-24T06:02:14Z")
Hi. I try to install this module but having error. Can somebody help me? NPM install of kevinGodell / node-red-contrib-ui-mp4frag
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## [Login for Dashboard UI \*without httpNodeAuth\*](https://discourse.nodered.org/t/login-for-dashboard-ui-without-httpnodeauth/41511)
**Author:** [@philipsd6](https://discourse.nodered.org/u/philipsd6)\
**Replies:** 6\
**Last updated:** [24 February 2021 01:08 UTC](https://discourse.nodered.org/t/login-for-dashboard-ui-without-httpnodeauth/41511 "2021-02-24T01:08:03Z")
I think that a typical setup of Node-RED uses the Dashboard UI, as well as some webhooks for various services. I find it very surprising that no-one has ever (as far as I could find) provided a reasonable solution for re…
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## [Can't toggle UI Worldmap node](https://discourse.nodered.org/t/cant-toggle-ui-worldmap-node/41388)
**Author:** [@Foobar](https://discourse.nodered.org/u/Foobar)\
**Replies:** 3\
**Last updated:** [24 February 2021 00:52 UTC](https://discourse.nodered.org/t/cant-toggle-ui-worldmap-node/41388 "2021-02-24T00:52:22Z")
I have the same problem as this poster had initially (before the topic got sidetracked by another); the ui\_worldmap node is toggled off by default and I can't turn it back on. I've had this problem twice now. The firs…
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## [Adding a "Dialog" node](https://discourse.nodered.org/t/adding-a-dialog-node/41271)
**Author:** [@clickworkorange](https://discourse.nodered.org/u/clickworkorange)\
**Replies:** 19\
**Last updated:** [23 February 2021 21:41 UTC](https://discourse.nodered.org/t/adding-a-dialog-node/41271 "2021-02-23T21:41:35Z")
I recently needed to indtroduce a dialog box to one of my dashboards, and tried to use the "Notification" node for this, but it didn't seem to be a good fit. What was missing to me was 1) a way to interrupt the flow of a…
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## [Workflow for creating SmartHome UI with SVG-node](https://discourse.nodered.org/t/workflow-for-creating-smarthome-ui-with-svg-node/41518)
**Author:** [@JoeWiseman](https://discourse.nodered.org/u/JoeWiseman)\
**Replies:** 0\
**Last updated:** [23 February 2021 23:08 UTC](https://discourse.nodered.org/t/workflow-for-creating-smarthome-ui-with-svg-node/41518 "2021-02-23T23:08:46Z")
Hi there, originally when starting with my SmartHome I've just been using components from the Homematic system. Because the HM-system is missing a graphical UI I've been using along with that the HomeDroid-App on my tab…
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## [forwardInputMessages in UI node](https://discourse.nodered.org/t/forwardinputmessages-in-ui-node/41513)
**Author:** [@BartButenaers](https://discourse.nodered.org/u/BartButenaers)\
**Replies:** 7\
**Last updated:** [23 February 2021 22:21 UTC](https://discourse.nodered.org/t/forwardinputmessages-in-ui-node/41513 "2021-02-23T22:21:30Z")
Hi folks, I'm wondering how forwardInputMessages in a UI node works. The dashboard Switch-node has following setting: By looking at the Switch-node (code), it is being used like this: forwardInputMessages: config.p…
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## [Could MQTT -\> QoS 1/2 or retain flag fix my problem? / ESP](https://discourse.nodered.org/t/could-mqtt-qos-1-2-or-retain-flag-fix-my-problem-esp/41492)
**Author:** [@WhiteLion](https://discourse.nodered.org/u/WhiteLion)\
**Replies:** 5\
**Last updated:** [23 February 2021 20:10 UTC](https://discourse.nodered.org/t/could-mqtt-qos-1-2-or-retain-flag-fix-my-problem-esp/41492 "2021-02-23T20:10:20Z")
Hiho folks & friends, after expanding IoT devices @ my home more and more I notice a problem with my switches/relays: They trun on and ignore the mqtt-command to turn off. This happens very seldom but its annoying if i…
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## [MQTT and Homebridge](https://discourse.nodered.org/t/mqtt-and-homebridge/41508)
**Author:** [@bskitter](https://discourse.nodered.org/u/bskitter)\
**Replies:** 1\
**Last updated:** [23 February 2021 19:50 UTC](https://discourse.nodered.org/t/mqtt-and-homebridge/41508 "2021-02-23T19:50:59Z")
Hello, Today I tried to add a new device to my Homebridge via Nodered and I ended up crashing Homebridge. I am using Homebridge-MQTT to interface Nodered and Homebridge but it seems like something changed. Whenever Ho…
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## [Node Red UI Table](https://discourse.nodered.org/t/node-red-ui-table/41263)
**Author:** [@psalibe](https://discourse.nodered.org/u/psalibe)\
**Replies:** 3\
**Last updated:** [23 February 2021 18:56 UTC](https://discourse.nodered.org/t/node-red-ui-table/41263 "2021-02-23T18:56:47Z")
Hello, I have a node-red-node-ui-table set up. I am confused because all of the examples simply use an inject node to inject data. I am reading data from an OPCUA server from a PLC. I am trying to log machine "feeds" int…
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## [Creating global variables from JSON object](https://discourse.nodered.org/t/creating-global-variables-from-json-object/41497)
**Author:** [@Sensors](https://discourse.nodered.org/u/Sensors)\
**Replies:** 6\
**Last updated:** [23 February 2021 17:05 UTC](https://discourse.nodered.org/t/creating-global-variables-from-json-object/41497 "2021-02-23T17:05:24Z")
Hello, I'm trying to create a bit of a system to store configuration data for my project, but allow it to be edited through the node red dashbord interface. I think the best option to edit it is a form with a multi-lin…
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## [I2C missing error after installation](https://discourse.nodered.org/t/i2c-missing-error-after-installation/41478)
**Author:** [@ankit](https://discourse.nodered.org/u/ankit)\
**Replies:** 6\
**Last updated:** [23 February 2021 17:25 UTC](https://discourse.nodered.org/t/i2c-missing-error-after-installation/41478 "2021-02-23T17:25:09Z")
Hi all,I want to implement i2c node in my project but after installation, it is showing that it is missing showing a warning in the manage pallete. Is there any problem with that node? Can anyone help? I am attaching th…
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## [Joining messages with different intervals](https://discourse.nodered.org/t/joining-messages-with-different-intervals/41359)
**Author:** [@MaxSchaaper](https://discourse.nodered.org/u/MaxSchaaper)\
**Replies:** 4\
**Last updated:** [23 February 2021 16:44 UTC](https://discourse.nodered.org/t/joining-messages-with-different-intervals/41359 "2021-02-23T16:44:49Z")
Hello, Using Node-Red to readout our smart- energy meter. Messages coming in through Mqtt. Electricity info comes in once every second. Gas usage info comes once every 5 minutes. I want to join only the last messages …
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## [Pass S7 variable to Mysql query](https://discourse.nodered.org/t/pass-s7-variable-to-mysql-query/41484)
**Author:** [@Eimerich](https://discourse.nodered.org/u/Eimerich)\
**Replies:** 3\
**Last updated:** [23 February 2021 14:59 UTC](https://discourse.nodered.org/t/pass-s7-variable-to-mysql-query/41484 "2021-02-23T14:59:03Z")
Hi there, I've go through different posts here, but wasn't able to find a proper solution. It's my first go with Node-Red and my objective is the following: I have sensors variables from S7 PLC from which I have to get…
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## [Can I copy paste the raspberry pi SD card and use node red flow?](https://discourse.nodered.org/t/can-i-copy-paste-the-raspberry-pi-sd-card-and-use-node-red-flow/41486)
**Author:** [@HZB](https://discourse.nodered.org/u/HZB)\
**Replies:** 1\
**Last updated:** [23 February 2021 13:51 UTC](https://discourse.nodered.org/t/can-i-copy-paste-the-raspberry-pi-sd-card-and-use-node-red-flow/41486 "2021-02-23T13:51:03Z")
Hi, I have to setup multiple R Pi for my project and mostly all flows are the same. can i copy and paste the new memory card with the data from my card of R pi in which my current flow is? any recommendation?
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## [Waiting for parallel processes to complete in order?](https://discourse.nodered.org/t/waiting-for-parallel-processes-to-complete-in-order/41159)
**Author:** [@Sensors](https://discourse.nodered.org/u/Sensors)\
**Replies:** 6\
**Last updated:** [23 February 2021 13:43 UTC](https://discourse.nodered.org/t/waiting-for-parallel-processes-to-complete-in-order/41159 "2021-02-23T13:43:22Z")
I have run into a bit of a problem where I'm trying to wait on two things to complete before I move to the next step in a sequential process. Ordinarily a join node would work, with both inputs fed in and set the node to…
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## [Hide tabs on mobile device](https://discourse.nodered.org/t/hide-tabs-on-mobile-device/41467)
**Author:** [@sfedo](https://discourse.nodered.org/u/sfedo)\
**Replies:** 1\
**Last updated:** [23 February 2021 13:12 UTC](https://discourse.nodered.org/t/hide-tabs-on-mobile-device/41467 "2021-02-23T13:12:17Z")
Hello, I would like to build 2 different tabs for each device: 1 tab for mobile device and another for common desctop pc. I have this function added to my head section: \ function myFunction(x) { if (x.matches…
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## [Bluetooth testing](https://discourse.nodered.org/t/bluetooth-testing/41476)
**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")
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)
**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")
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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