# Latest

**URL:** https://discourse.nodered.org/latest.md?page=503

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

**Page:** 504

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## [Setting up a Live/Prod and a Development System](https://discourse.nodered.org/t/setting-up-a-live-prod-and-a-development-system/67415)

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**Author:** [@DonRacz](https://discourse.nodered.org/u/DonRacz)\
**Replies:** 18\
**Last updated:** [7 September 2022 20:21 UTC](https://discourse.nodered.org/t/setting-up-a-live-prod-and-a-development-system/67415 "2022-09-07T20:21:16Z")

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I have two environments running on two seperate RPI's. RPI-14 and RPI-15. I have a very basic sprinkler system on 14 that uses an ESP32 to control the valves. (just on off for now). I setup a second esp32 for testing a…

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## [MQTT node doesn't reconnect to MQTT broker after restarting flows](https://discourse.nodered.org/t/mqtt-node-doesnt-reconnect-to-mqtt-broker-after-restarting-flows/67444)

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**Author:** [@janvda](https://discourse.nodered.org/u/janvda)\
**Replies:** 2\
**Last updated:** [7 September 2022 19:59 UTC](https://discourse.nodered.org/t/mqtt-node-doesnt-reconnect-to-mqtt-broker-after-restarting-flows/67444 "2022-09-07T19:59:57Z")

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My setup: On my intel NUC device with host OS ubuntu 20.4 I am running docker and in this case I make use of following docker containers: MQTT broker (without security) based on docker image eclipse-mosquitto several…

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## [How to display live video to the node red dashboard and have the ability to simply turn it on and turn it off with either a slide switch or "On" "Off" push buttons](https://discourse.nodered.org/t/how-to-display-live-video-to-the-node-red-dashboard-and-have-the-ability-to-simply-turn-it-on-and-turn-it-off-with-either-a-slide-switch-or-on-off-push-buttons/67017)

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**Author:** [@jorymathis13](https://discourse.nodered.org/u/jorymathis13)\
**Replies:** 29\
**Last updated:** [7 September 2022 16:00 UTC](https://discourse.nodered.org/t/how-to-display-live-video-to-the-node-red-dashboard-and-have-the-ability-to-simply-turn-it-on-and-turn-it-off-with-either-a-slide-switch-or-on-off-push-buttons/67017 "2022-09-07T16:00:41Z")

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@kevinGodell Hey Kevin, first off I'm going preface and say that I am a complete NEWB when it comes using node-red and ip cameras. I am able to stream my ip cameras with VLC using rtsp and see the live streams. I spent …

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## [Control a servo ...HELP](https://discourse.nodered.org/t/control-a-servo-help/67436)

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**Author:** [@node2](https://discourse.nodered.org/u/node2)\
**Replies:** 10\
**Last updated:** [7 September 2022 14:40 UTC](https://discourse.nodered.org/t/control-a-servo-help/67436 "2022-09-07T14:40:55Z")

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I'm using a servo as a Gate i need a FLOW as follow ..when i push a button i need the servo to turn +90 degrees... stops for 2 seconds.... then turns back -90 degrees .....stop the loop . THX in advance

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## [Remove repeating array objects in the flow](https://discourse.nodered.org/t/remove-repeating-array-objects-in-the-flow/67384)

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**Author:** [@abdul-Tz-prog](https://discourse.nodered.org/u/abdul-Tz-prog)\
**Replies:** 6\
**Last updated:** [7 September 2022 13:34 UTC](https://discourse.nodered.org/t/remove-repeating-array-objects-in-the-flow/67384 "2022-09-07T13:34:14Z")

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Hello everyone, I am new with nodeRed and need your help. I have a flow where I get the array of objects using a filter node, but when a new object comes then previous objects also shows in the array. I only want to show…

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## [Strange log line](https://discourse.nodered.org/t/strange-log-line/67430)

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**Author:** [@fmarzocca](https://discourse.nodered.org/u/fmarzocca)\
**Replies:** 3\
**Last updated:** [7 September 2022 11:21 UTC](https://discourse.nodered.org/t/strange-log-line/67430 "2022-09-07T11:21:18Z")

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Few days ago I found this line in my syslog: Sun, 04 Sep 2022 12:37:45 GMT express deprecated res.status("200"): use res.status(200) instead at ../../usr/lib/node\_modules/node-red/node\_modules/@node-red/nodes/core/netwo…

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## [Npm update error "Cannot convert undefined or null to object"](https://discourse.nodered.org/t/npm-update-error-cannot-convert-undefined-or-null-to-object/67429)

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**Author:** [@nrbrt](https://discourse.nodered.org/u/nrbrt)\
**Replies:** 1\
**Last updated:** [7 September 2022 11:20 UTC](https://discourse.nodered.org/t/npm-update-error-cannot-convert-undefined-or-null-to-object/67429 "2022-09-07T11:20:41Z")

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When running "npm update" in my ./.node-red directory I get the error "Cannot convert undefined or null to object". The Idealtree seems to run to completion. The error log looks like this: 0 verbose cli /usr/bin/node /u…

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## [Hooks removal from node](https://discourse.nodered.org/t/hooks-removal-from-node/67422)

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**Author:** [@Techie](https://discourse.nodered.org/u/Techie)\
**Replies:** 4\
**Last updated:** [7 September 2022 10:24 UTC](https://discourse.nodered.org/t/hooks-removal-from-node/67422 "2022-09-07T10:24:02Z")

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How can i disable any hook from a node or remove the hook?

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## [Node Red Mobile Using Termux USB port issue](https://discourse.nodered.org/t/node-red-mobile-using-termux-usb-port-issue/67428)

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**Author:** [@Asad.Khan](https://discourse.nodered.org/u/Asad.Khan)\
**Replies:** 0\
**Last updated:** [7 September 2022 09:51 UTC](https://discourse.nodered.org/t/node-red-mobile-using-termux-usb-port-issue/67428 "2022-09-07T09:51:32Z")

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Hy! I am using node-red mobile via a termux, I am trying to connect a RFD 868 module to mobile and receive serial data through it via a USBA port. I have connected a USB type C docking station with mobile which have thr…

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## [Terminal implementation in Node-Red-Dashboard](https://discourse.nodered.org/t/terminal-implementation-in-node-red-dashboard/67380)

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**Author:** [@JustinB](https://discourse.nodered.org/u/JustinB)\
**Replies:** 39\
**Last updated:** [7 September 2022 08:57 UTC](https://discourse.nodered.org/t/terminal-implementation-in-node-red-dashboard/67380 "2022-09-07T08:57:10Z")

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Hello people, I want to implement a web-based terminal in the dashboard. My thought was to use xterm but it wont show up in the Dashboard. The implementation should be correct: Do I maybe have to import something,…

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## [What is a node-red registry?](https://discourse.nodered.org/t/what-is-a-node-red-registry/67425)

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**Author:** [@elvisj007](https://discourse.nodered.org/u/elvisj007)\
**Replies:** 1\
**Last updated:** [7 September 2022 08:07 UTC](https://discourse.nodered.org/t/what-is-a-node-red-registry/67425 "2022-09-07T08:07:20Z")

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I am quite new to the development background. I do not understand what a 'node-red registry' is and how to use it while you are creating your own nodes. can someone give me a valuable source of information or examples …

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## [Right click menu and junction not available on 3.0.2](https://discourse.nodered.org/t/right-click-menu-and-junction-not-available-on-3-0-2/67421)

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**Author:** [@hoegge](https://discourse.nodered.org/u/hoegge)\
**Replies:** 1\
**Last updated:** [7 September 2022 07:20 UTC](https://discourse.nodered.org/t/right-click-menu-and-junction-not-available-on-3-0-2/67421 "2022-09-07T07:20:24Z")

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Maybe I'm doing something stupid or not getting it. But I have no right-click menu functionality nor can I insert a junction and use the shortcuts for creating a junction. I'm running 3.0.2 in docker and using it from a …

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## [Modbus chart with large variable values instead of negative ones](https://discourse.nodered.org/t/modbus-chart-with-large-variable-values-instead-of-negative-ones/67379)

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**Author:** [@uka](https://discourse.nodered.org/u/uka)\
**Replies:** 2\
**Last updated:** [7 September 2022 06:26 UTC](https://discourse.nodered.org/t/modbus-chart-with-large-variable-values-instead-of-negative-ones/67379 "2022-09-07T06:26:26Z")

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Hello everyone. I am using modbus flex sequencer to read variable values from carel cpco driver. Everything works well as long as the temperature on the sensors does not drop below zero. Then the modbus instead of negat…

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## [Dashboard dropdown selection showing on multiple browsers](https://discourse.nodered.org/t/dashboard-dropdown-selection-showing-on-multiple-browsers/67399)

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**Author:** [@rbmgf7](https://discourse.nodered.org/u/rbmgf7)\
**Replies:** 1\
**Last updated:** [7 September 2022 06:01 UTC](https://discourse.nodered.org/t/dashboard-dropdown-selection-showing-on-multiple-browsers/67399 "2022-09-07T06:01:18Z")

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I'm trying to build a dashboard where operators need to fill in work order information. A department can have multiple cells so I was trying to keep the dashboard groups down to a minimum by having the operator select th…

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## [Improve touchscreen editing with meta-keys](https://discourse.nodered.org/t/improve-touchscreen-editing-with-meta-keys/67413)

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**Author:** [@hwellink](https://discourse.nodered.org/u/hwellink)\
**Replies:** 0\
**Last updated:** [7 September 2022 02:17 UTC](https://discourse.nodered.org/t/improve-touchscreen-editing-with-meta-keys/67413 "2022-09-07T02:17:43Z")

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I am using the node red editor on an iPad using iOS and touch. Which works great most of the time! It would improve the workflow if some of the mouse features could be implemented for touch as well using meta-keys. Drag…

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## [IS there a way to change a ui element of the group with another](https://discourse.nodered.org/t/is-there-a-way-to-change-a-ui-element-of-the-group-with-another/67352)

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**Author:** [@WhiteLion](https://discourse.nodered.org/u/WhiteLion)\
**Replies:** 2\
**Last updated:** [6 September 2022 22:19 UTC](https://discourse.nodered.org/t/is-there-a-way-to-change-a-ui-element-of-the-group-with-another/67352 "2022-09-06T22:19:12Z")

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Is there a way to let the player coming from the the ui\_mp4frag node ? background: I don´t want to replace my old view method which graps a more detailed picture of the cams than the video stream. So ein want implement …

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## [Node-RED projects vs. "normal committing + pushing with git"](https://discourse.nodered.org/t/node-red-projects-vs-normal-committing-pushing-with-git/67374)

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**Author:** [@kitkat159](https://discourse.nodered.org/u/kitkat159)\
**Replies:** 9\
**Last updated:** [6 September 2022 20:23 UTC](https://discourse.nodered.org/t/node-red-projects-vs-normal-committing-pushing-with-git/67374 "2022-09-06T20:23:33Z")

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I run NR under Docker and use a bind mount to map a local folder. I use an NR project with a remote repository and since I also wanted to have a NR runtime defined, I have another repository to store the "settings.js", …

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## [Multiple users on HTML page served from Template Node](https://discourse.nodered.org/t/multiple-users-on-html-page-served-from-template-node/67400)

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**Author:** [@DanielEcheverri](https://discourse.nodered.org/u/DanielEcheverri)\
**Replies:** 1\
**Last updated:** [6 September 2022 20:22 UTC](https://discourse.nodered.org/t/multiple-users-on-html-page-served-from-template-node/67400 "2022-09-06T20:22:02Z")

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I am aware that NodeRed's Dashboard does NOT support multiple individual users. However, in my flow I use a template node which serves a hypertext game in html. The flow sends and receives various payloads from/to the ga…

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## [Accepting more HTTP requests simultaneously?](https://discourse.nodered.org/t/accepting-more-http-requests-simultaneously/67405)

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**Author:** [@lizzardguki](https://discourse.nodered.org/u/lizzardguki)\
**Replies:** 1\
**Last updated:** [6 September 2022 20:13 UTC](https://discourse.nodered.org/t/accepting-more-http-requests-simultaneously/67405 "2022-09-06T20:13:54Z")

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So i am using HTTP nodes to create an endpoint for a webhook for a particular service, which sends me data , that i format for influxdb, make a response to the original webhook (200 or error) and then i try to push the d…

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## [Non standard NMEA string to Influx](https://discourse.nodered.org/t/non-standard-nmea-string-to-influx/67393)

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**Author:** [@questrov](https://discourse.nodered.org/u/questrov)\
**Replies:** 3\
**Last updated:** [6 September 2022 17:42 UTC](https://discourse.nodered.org/t/non-standard-nmea-string-to-influx/67393 "2022-09-06T17:42:10Z")

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Can drop a standard NMEA string into NMEA node and Influx node takes it no problem. NMEA input $HEHDT,248.03,T\*12 Output from NMEA node to Influx node {"sentence":"HDT","type":"heading-info","heading":248.11,"talker\_…

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## [JSON array to CSV](https://discourse.nodered.org/t/json-array-to-csv/67362)

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**Author:** [@Sphere](https://discourse.nodered.org/u/Sphere)\
**Replies:** 3\
**Last updated:** [6 September 2022 15:40 UTC](https://discourse.nodered.org/t/json-array-to-csv/67362 "2022-09-06T15:40:48Z")

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Hellou, i am newbie and i am strugling how to convert json data array into csv format to be able to work in google spread sheet. my data are in JSON format like bellow { "\_msgid":"ed76c5391f37b3d7", "payload":{ …

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## [Change background color of ui\_switch dynamic](https://discourse.nodered.org/t/change-background-color-of-ui-switch-dynamic/67302)

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**Author:** [@MrX](https://discourse.nodered.org/u/MrX)\
**Replies:** 11\
**Last updated:** [6 September 2022 15:57 UTC](https://discourse.nodered.org/t/change-background-color-of-ui-switch-dynamic/67302 "2022-09-06T15:57:21Z")

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I have spend many, many hours to figure out how I could change the background color dynamic of a dashboard UI switch (palette node-red-dashboard node "Switch" / ui\_switch). I could set the background color static by usi…

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## [Node-red-contrib-switchbot](https://discourse.nodered.org/t/node-red-contrib-switchbot/67396)

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**Author:** [@oberlero](https://discourse.nodered.org/u/oberlero)\
**Replies:** 0\
**Last updated:** [6 September 2022 15:54 UTC](https://discourse.nodered.org/t/node-red-contrib-switchbot/67396 "2022-09-06T15:54:16Z")

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Hello, Is there anyone out there that has experience with switchbot? specialy the use of "node-red-contrib-switchbot-api"? How should the flwo look like? I wasnt able to get this running, but to be hines im also relativ…

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## [TypeError: The "options" argument must be of type object. Received an instance of Array](https://discourse.nodered.org/t/typeerror-the-options-argument-must-be-of-type-object-received-an-instance-of-array/67365)

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**Author:** [@yimin](https://discourse.nodered.org/u/yimin)\
**Replies:** 2\
**Last updated:** [6 September 2022 15:11 UTC](https://discourse.nodered.org/t/typeerror-the-options-argument-must-be-of-type-object-received-an-instance-of-array/67365 "2022-09-06T15:11:53Z")

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Hi, When I run the examples of machine-learning-v2 https://github.com/hbouvier/node-red-contrib-machine-learning after deploying, the debug window showed error: TypeError: The "options" argument must be of type objec…

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## [Smart Approach to Email Alerts](https://discourse.nodered.org/t/smart-approach-to-email-alerts/67339)

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**Author:** [@gregoinc](https://discourse.nodered.org/u/gregoinc)\
**Replies:** 18\
**Last updated:** [6 September 2022 14:16 UTC](https://discourse.nodered.org/t/smart-approach-to-email-alerts/67339 "2022-09-06T14:16:37Z")

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Greetings, I have been using a door reed switch to notify via mqtt when a door is open or closed. My node-red code has worked really well with one reed switch. Now that I want to add more reed switches I need to modify …

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## [Saving a msg.payload and than comparing the new msg with same topic later on](https://discourse.nodered.org/t/saving-a-msg-payload-and-than-comparing-the-new-msg-with-same-topic-later-on/67391)

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**Author:** [@Samokomo](https://discourse.nodered.org/u/Samokomo)\
**Replies:** 2\
**Last updated:** [6 September 2022 12:38 UTC](https://discourse.nodered.org/t/saving-a-msg-payload-and-than-comparing-the-new-msg-with-same-topic-later-on/67391 "2022-09-06T12:38:20Z")

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Hello NodeRed community! I am still kinda NodeRed newbie and I would appriciate some help here. My situation is: My messages from devices are identified via msg.topic which equals to mac address of particular device. …

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## [Send payload of array to UI-Template Table](https://discourse.nodered.org/t/send-payload-of-array-to-ui-template-table/66536)

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**Author:** [@Kimo](https://discourse.nodered.org/u/Kimo)\
**Replies:** 13\
**Last updated:** [6 September 2022 12:26 UTC](https://discourse.nodered.org/t/send-payload-of-array-to-ui-template-table/66536 "2022-09-06T12:26:24Z")

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Hi. I have a case where after user key in the inputs, the payload will be stored into database while also displayed on ui-template table. Then, user also can key in multiple inputs. My problem now is how to send the pay…

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## [How to set the ui button that will on click it should send value 1 and after release it should send 0](https://discourse.nodered.org/t/how-to-set-the-ui-button-that-will-on-click-it-should-send-value-1-and-after-release-it-should-send-0/67382)

<div class="topic-metadata">

**Author:** [@Ganesh](https://discourse.nodered.org/u/Ganesh)\
**Replies:** 2\
**Last updated:** [6 September 2022 11:43 UTC](https://discourse.nodered.org/t/how-to-set-the-ui-button-that-will-on-click-it-should-send-value-1-and-after-release-it-should-send-0/67382 "2022-09-06T11:43:33Z")

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I want to create a ui button for dashboard that will perform the following function On Click it should send value one and after release it should send value 0 like a push button

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## [Node-Red Dashboard Query - Using session ID for multi users](https://discourse.nodered.org/t/node-red-dashboard-query-using-session-id-for-multi-users/67364)

<div class="topic-metadata">

**Author:** [@SandeepA](https://discourse.nodered.org/u/SandeepA)\
**Replies:** 2\
**Last updated:** [6 September 2022 10:26 UTC](https://discourse.nodered.org/t/node-red-dashboard-query-using-session-id-for-multi-users/67364 "2022-09-06T10:26:46Z")

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Hi , I went through quite a few posts on the forum. And everywhere it says NR Dashboard is single user. At the same the readme for Dashboard talks about socket id. My Query :- So long , I don't maintain the states as…

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## [Extract Data from Many Array With Object of Same name](https://discourse.nodered.org/t/extract-data-from-many-array-with-object-of-same-name/67355)

<div class="topic-metadata">

**Author:** [@Asad.Khan](https://discourse.nodered.org/u/Asad.Khan)\
**Replies:** 3\
**Last updated:** [6 September 2022 08:44 UTC](https://discourse.nodered.org/t/extract-data-from-many-array-with-object-of-same-name/67355 "2022-09-06T08:44:29Z")

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Hy! I am new to Node-red and java script, I need some help. I am using a WIFI node to know the WIFI strength of all the available networks. Some times I get one to two objects (networks), some times I get 10-15 (objects)…

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