# Latest

**URL:** https://discourse.nodered.org/latest.md?page=908

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

**Page:** 909

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## [Zigbee herdsman](https://discourse.nodered.org/t/zigbee-herdsman/39328)

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**Author:** [@Tehn](https://discourse.nodered.org/u/Tehn)\
**Replies:** 1\
**Last updated:** [18 January 2021 13:50 UTC](https://discourse.nodered.org/t/zigbee-herdsman/39328 "2021-01-18T13:50:22Z")

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I can't figure out how to properly set the herdsman node. Doe anyone have expierence with Zigbee within Node-red?

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## [httpNode endpoint - how to "remove"](https://discourse.nodered.org/t/httpnode-endpoint-how-to-remove/38995)

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**Author:** [@hklages](https://discourse.nodered.org/u/hklages)\
**Replies:** 1\
**Last updated:** [18 January 2021 13:16 UTC](https://discourse.nodered.org/t/httpnode-endpoint-how-to-remove/38995 "2021-01-18T13:16:43Z")

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The RED.httpNode.get works fine and I can register a new endpoint. 2021-01-18 update: Questions How can I remove that endpoint? Is there anywhere a list what endpoints are already defined? What happens if an endpoint…

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## [Need Help Control Wallbox for E Golf](https://discourse.nodered.org/t/need-help-control-wallbox-for-e-golf/39237)

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**Author:** [@Strippo](https://discourse.nodered.org/u/Strippo)\
**Replies:** 5\
**Last updated:** [18 January 2021 13:15 UTC](https://discourse.nodered.org/t/need-help-control-wallbox-for-e-golf/39237 "2021-01-18T13:15:34Z")

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Hello Node Red Users, I am just new here in this Forum and a newbie in Node Red, I have just running up some ESP32 sending and receiving message with Node Red. I am would now control my Wallbox using data from my Volks…

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## [How to replace all in string](https://discourse.nodered.org/t/how-to-replace-all-in-string/39320)

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**Author:** [@Ptwtech](https://discourse.nodered.org/u/Ptwtech)\
**Replies:** 5\
**Last updated:** [18 January 2021 12:22 UTC](https://discourse.nodered.org/t/how-to-replace-all-in-string/39320 "2021-01-18T12:22:25Z")

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Hello All, Please Guide me how to replace all in string i want to replace rep with " ". getting the value of id is dynamically from payload. var rep = "ID"+" "+id+"\_"; msg.payload=s.replace(rep," "); This is worki…

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## [Integrate Azur 540R v3 using Node Red and node-red-node-serialport pallette](https://discourse.nodered.org/t/integrate-azur-540r-v3-using-node-red-and-node-red-node-serialport-pallette/39325)

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**Author:** [@John245](https://discourse.nodered.org/u/John245)\
**Replies:** 3\
**Last updated:** [18 January 2021 12:10 UTC](https://discourse.nodered.org/t/integrate-azur-540r-v3-using-node-red-and-node-red-node-serialport-pallette/39325 "2021-01-18T12:10:00Z")

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I'm trying to send commands to my Azur 540R v3 receiver using the node-red-node-serialport pallette. As background info I use a Moxa Serial Server and I'm able to send commands to a video switch. As I use a different ca…

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## [Mqtt nodes not connecting](https://discourse.nodered.org/t/mqtt-nodes-not-connecting/38950)

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**Author:** [@ega](https://discourse.nodered.org/u/ega)\
**Replies:** 25\
**Last updated:** [18 January 2021 11:22 UTC](https://discourse.nodered.org/t/mqtt-nodes-not-connecting/38950 "2021-01-18T11:22:01Z")

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I'm running node-red in a cloud server. All mqtt nodes show a yellow "connecting" label, but they never achieve the connection. How can I find the problem?

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## [Node-Red container won't restart after adding a node](https://discourse.nodered.org/t/node-red-container-wont-restart-after-adding-a-node/37148)

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**Author:** [@Kenspot](https://discourse.nodered.org/u/Kenspot)\
**Replies:** 2\
**Last updated:** [18 January 2021 10:42 UTC](https://discourse.nodered.org/t/node-red-container-wont-restart-after-adding-a-node/37148 "2021-01-18T10:42:35Z")

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Node-Red Docker container won't restart after adding a node I'm hoping that someone can help me, perhaps someone who uses Docker has had the same problem. I was playing about adding a Node for IFTTT, and left a port fo…

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## [How to send LoraWan message to IoT smart-plug](https://discourse.nodered.org/t/how-to-send-lorawan-message-to-iot-smart-plug/37971)

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**Author:** [@luca-ferrari-roma](https://discourse.nodered.org/u/luca-ferrari-roma)\
**Replies:** 1\
**Last updated:** [18 January 2021 09:58 UTC](https://discourse.nodered.org/t/how-to-send-lorawan-message-to-iot-smart-plug/37971 "2021-01-18T09:58:35Z")

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Hi all, I'm using a PC connected to MultiTech gateway ( https://www.multitech.com/brands/multiconnect-conduit ) and a LoraWan Smart plug ( https://www.nke-watteco.com/product/smart-plug-sensor-lorawan/ ). Is it possibl…

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## [Ui\_dropdown node shows m.map is not a function](https://discourse.nodered.org/t/ui-dropdown-node-shows-m-map-is-not-a-function/39306)

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**Author:** [@chc69](https://discourse.nodered.org/u/chc69)\
**Replies:** 2\
**Last updated:** [18 January 2021 09:51 UTC](https://discourse.nodered.org/t/ui-dropdown-node-shows-m-map-is-not-a-function/39306 "2021-01-18T09:51:44Z")

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Hi I just face a strange issue with the dropdown node of node-red dashboard. I set the option as an array as below msg.payload = \["option1"\]; msg.options = \["option1", "option2", "option3"\]; And I also set the node a…

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## [Cannot to start Node-RED Docker custom container with npm](https://discourse.nodered.org/t/cannot-to-start-node-red-docker-custom-container-with-npm/39316)

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**Author:** [@ChiaChia1114](https://discourse.nodered.org/u/ChiaChia1114)\
**Replies:** 0\
**Last updated:** [18 January 2021 08:51 UTC](https://discourse.nodered.org/t/cannot-to-start-node-red-docker-custom-container-with-npm/39316 "2021-01-18T08:51:44Z")

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Hi, everyone. I have some problems with my container. I have followed the step with https://discourse.nodered.org/t/cannot-seem-to-start-node-red-docker-custom-container/26168 . But in the last step, which he says "The …

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## [Can I connect NODEMCU directly to Node-RED?](https://discourse.nodered.org/t/can-i-connect-nodemcu-directly-to-node-red/39297)

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**Author:** [@mindquanta](https://discourse.nodered.org/u/mindquanta)\
**Replies:** 5\
**Last updated:** [18 January 2021 06:14 UTC](https://discourse.nodered.org/t/can-i-connect-nodemcu-directly-to-node-red/39297 "2021-01-18T06:14:54Z")

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Hi :blush: I'm new to automation. I want to connect my NODEMCU to NODE-RED. I've seen several videos and everyone says I have to use MTQQ. Am I required to use MQTT between NODEMCU and NODE-RED? Can't I connect NODEMC…

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## [Custom node / function node - single instance](https://discourse.nodered.org/t/custom-node-function-node-single-instance/38992)

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**Author:** [@hklages](https://discourse.nodered.org/u/hklages)\
**Replies:** 6\
**Last updated:** [18 January 2021 08:25 UTC](https://discourse.nodered.org/t/custom-node-function-node-single-instance/38992 "2021-01-18T08:25:55Z")

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How can I prevent user to create multiple config nodes / function nodes?

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## [Dashboard Screenshot / Telegram](https://discourse.nodered.org/t/dashboard-screenshot-telegram/39310)

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**Author:** [@Broutech](https://discourse.nodered.org/u/Broutech)\
**Replies:** 0\
**Last updated:** [18 January 2021 07:31 UTC](https://discourse.nodered.org/t/dashboard-screenshot-telegram/39310 "2021-01-18T07:31:44Z")

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Good day, I am running Node-Red in a Docker environment. I am looking for a way to capture a screenshot of the dashboard i.e http://localhost:1880/ui/ and then Telegram the screenshot when required. Thank you

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## [Adding new flows using curl](https://discourse.nodered.org/t/adding-new-flows-using-curl/39305)

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**Author:** [@akhtar321h](https://discourse.nodered.org/u/akhtar321h)\
**Replies:** 0\
**Last updated:** [18 January 2021 06:47 UTC](https://discourse.nodered.org/t/adding-new-flows-using-curl/39305 "2021-01-18T06:47:11Z")

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Hello Everyone, I am working with node-red flow manager and trying to get, replace, delete, add and modify the flows with the help of curl command. Get, replace, delete commands are working fine but when I am trying to …

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## [MongoDB Out Node - Issues with \_id on Update](https://discourse.nodered.org/t/mongodb-out-node-issues-with-id-on-update/6064)

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**Author:** [@SeanT](https://discourse.nodered.org/u/SeanT)\
**Replies:** 4\
**Last updated:** [18 January 2021 05:46 UTC](https://discourse.nodered.org/t/mongodb-out-node-issues-with-id-on-update/6064 "2021-01-18T05:46:45Z")

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Good Day, I am attempting to do an update (overwrite) to MongoDB via the mongodb out node. The notes suggest "... if you want repeated entries to overwrite, then you must set the msg.\_id property to be a constant by th…

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## [Setting ui from tasmota not working](https://discourse.nodered.org/t/setting-ui-from-tasmota-not-working/38487)

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**Author:** [@StefanSchmelz](https://discourse.nodered.org/u/StefanSchmelz)\
**Replies:** 2\
**Last updated:** [18 January 2021 00:18 UTC](https://discourse.nodered.org/t/setting-ui-from-tasmota-not-working/38487 "2021-01-18T00:18:29Z")

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Hi, I use the node-red-contrib-tasmota to control my devices. I want to set the color of a color picker from the output of this device. I have set my color picker to output an object. I have written a function to conve…

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## [Programatically edit or create flows](https://discourse.nodered.org/t/programatically-edit-or-create-flows/39296)

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**Author:** [@StefanSchmelz](https://discourse.nodered.org/u/StefanSchmelz)\
**Replies:** 2\
**Last updated:** [18 January 2021 00:17 UTC](https://discourse.nodered.org/t/programatically-edit-or-create-flows/39296 "2021-01-18T00:17:01Z")

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Hi, I want to build an abstraction layer to adapt various devices to siematic s7. I would like to avoid having to have like 10 copies of the same Nodes (one set per device). If you want more information about my proje…

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## [EditorTheme, CSS; Dashboard](https://discourse.nodered.org/t/editortheme-css-dashboard/39292)

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**Author:** [@juliocalle](https://discourse.nodered.org/u/juliocalle)\
**Replies:** 1\
**Last updated:** [17 January 2021 23:37 UTC](https://discourse.nodered.org/t/editortheme-css-dashboard/39292 "2021-01-17T23:37:10Z")

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Greetings to all I am trying to implement it in a general way with CSS, for this I have added the following to the setting.js file: editorTheme: { page: { css: "/absolute/path/to/custom/css/file…

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## [Is the scope of "const" only within the node?](https://discourse.nodered.org/t/is-the-scope-of-const-only-within-the-node/39272)

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**Author:** [@FatPilot](https://discourse.nodered.org/u/FatPilot)\
**Replies:** 5\
**Last updated:** [17 January 2021 20:55 UTC](https://discourse.nodered.org/t/is-the-scope-of-const-only-within-the-node/39272 "2021-01-17T20:55:27Z")

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Hi Everyone, I've spent most of today trying all sorts to get to the bottom of this. I am familiar with context variables, however I want several flow.const I can declare a const="Test" within a function node and it w…

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## [Raspberry Pi camera](https://discourse.nodered.org/t/raspberry-pi-camera/16324)

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**Author:** [@lodv](https://discourse.nodered.org/u/lodv)\
**Replies:** 14\
**Last updated:** [17 January 2021 20:36 UTC](https://discourse.nodered.org/t/raspberry-pi-camera/16324 "2021-01-17T20:36:46Z")

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I have a Raspberry Pi zero with a camera module running. Is it possible to connect to this camera with another Raspberry Pi running Node-Red. Which nodes do I have to use? I have to connect to the Raspberry Zero with …

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## [Multiple Instances of Node Red](https://discourse.nodered.org/t/multiple-instances-of-node-red/5076)

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**Author:** [@deven2020](https://discourse.nodered.org/u/deven2020)\
**Replies:** 15\
**Last updated:** [17 January 2021 20:36 UTC](https://discourse.nodered.org/t/multiple-instances-of-node-red/5076 "2021-01-17T20:36:33Z")

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Good Day all I am working on a project where i have multiple Raspberry PI. Each PI controls a room where node red install in it. The node red will control devices like smart lights within each room. I have a created a…

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## [microbitとBluetooth連携](https://discourse.nodered.org/t/microbit-bluetooth/18899)

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**Author:** [@TOSHI1](https://discourse.nodered.org/u/TOSHI1)\
**Replies:** 11\
**Last updated:** [17 January 2021 20:33 UTC](https://discourse.nodered.org/t/microbit-bluetooth/18899 "2021-01-17T20:33:59Z")

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I want to link microbit and node-red with bluetooth and get sensor data with node-red, but I can only connect, but I can't read sensor data. The node used is node-red-contrib-generic-ble. I am not familiar with bluetoot…

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## [Error: EACCES: permission denied, open '/root/.node-red/flows....json'..'](https://discourse.nodered.org/t/error-eacces-permission-denied-open-root-node-red-flows-json/39274)

<div class="topic-metadata">

**Author:** [@inavarrosevilla](https://discourse.nodered.org/u/inavarrosevilla)\
**Replies:** 4\
**Last updated:** [17 January 2021 20:15 UTC](https://discourse.nodered.org/t/error-eacces-permission-denied-open-root-node-red-flows-json/39274 "2021-01-17T20:15:57Z")

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Hi for all. This is my first post on my life I'm trying to make a flows backup. When execute the file in node in debug windows I see the error on the title Can anybody helpme? Thanks in advance. NOTE: I´m nodered an…

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## [Timezone in Debug window](https://discourse.nodered.org/t/timezone-in-debug-window/39249)

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**Author:** [@tmichaeltx](https://discourse.nodered.org/u/tmichaeltx)\
**Replies:** 4\
**Last updated:** [17 January 2021 20:03 UTC](https://discourse.nodered.org/t/timezone-in-debug-window/39249 "2021-01-17T20:03:08Z")

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I am doing something where I am recording into a global variable and showing in a debug window, the time/date of an event. In both places, it is showing it in Zulu format. Is there any way to get it to show using the ser…

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## [Looking for AWS node](https://discourse.nodered.org/t/looking-for-aws-node/39218)

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**Author:** [@kanke](https://discourse.nodered.org/u/kanke)\
**Replies:** 5\
**Last updated:** [17 January 2021 19:55 UTC](https://discourse.nodered.org/t/looking-for-aws-node/39218 "2021-01-17T19:55:51Z")

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I am looking for an AWS node and found this one https://flows.nodered.org/node/node-red-contrib-aws. It has not been updated for long time, is it still good? Are there any other good AWS node?

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## [Piface flow demo](https://discourse.nodered.org/t/piface-flow-demo/36929)

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**Author:** [@dick](https://discourse.nodered.org/u/dick)\
**Replies:** 10\
**Last updated:** [17 January 2021 11:32 UTC](https://discourse.nodered.org/t/piface-flow-demo/36929 "2021-01-17T11:32:47Z")

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Who can show me a GOOD working demo with Piface in basic form thanks D

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## [Uibuilder 3.0.1 not installing on windows](https://discourse.nodered.org/t/uibuilder-3-0-1-not-installing-on-windows/39261)

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**Author:** [@mudmin](https://discourse.nodered.org/u/mudmin)\
**Replies:** 1\
**Last updated:** [17 January 2021 18:48 UTC](https://discourse.nodered.org/t/uibuilder-3-0-1-not-installing-on-windows/39261 "2021-01-17T18:48:54Z")

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I got a tip on reddit that uibuilder might be helpful for me, but It's not installing on windows or debian. On windows via npm, I kept getting that it could not register module uibuilder. That was kind of a bugger to p…

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## [Recovering flows from console?](https://discourse.nodered.org/t/recovering-flows-from-console/39276)

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**Author:** [@aidan](https://discourse.nodered.org/u/aidan)\
**Replies:** 3\
**Last updated:** [17 January 2021 17:32 UTC](https://discourse.nodered.org/t/recovering-flows-from-console/39276 "2021-01-17T17:32:42Z")

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I have created an inadvertent loop running in node-red that is maxing out the cpu well, yes it's a pi one.. SSH still working, just so disabled node-red Can I recover the flows.json file, and is it possible to restart …

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## [Include functions file in function node possible?](https://discourse.nodered.org/t/include-functions-file-in-function-node-possible/36981)

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**Author:** [@RogierQ](https://discourse.nodered.org/u/RogierQ)\
**Replies:** 16\
**Last updated:** [16 January 2021 18:13 UTC](https://discourse.nodered.org/t/include-functions-file-in-function-node-possible/36981 "2021-01-16T18:13:51Z")

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Hi! I made a function that removes spaces, sets to lower case and split on , of the msg.payload Now every time i need to do this i copy this function into my function node. But is it possible to put this in a file tog…

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## [Copy flows\_compName.json to another computer](https://discourse.nodered.org/t/copy-flows-compname-json-to-another-computer/39245)

<div class="topic-metadata">

**Author:** [@Henjoe](https://discourse.nodered.org/u/Henjoe)\
**Replies:** 4\
**Last updated:** [17 January 2021 16:19 UTC](https://discourse.nodered.org/t/copy-flows-compname-json-to-another-computer/39245 "2021-01-17T16:19:01Z")

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Hello nodered experts, This is actually a question not related to programming but I am hoping that someone can help me here. I have nodered running locally at my development Laptop (installed on specific folder). I use…

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