# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=776

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

**Page:** 777

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## [DWD Node TypeError Problem](https://discourse.nodered.org/t/dwd-node-typeerror-problem/23661)

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**Author:** [@Thomas6789](https://discourse.nodered.org/u/Thomas6789)\
**Replies:** 2\
**Last updated:** [26 March 2020 09:49 UTC](https://discourse.nodered.org/t/dwd-node-typeerror-problem/23661 "2020-03-26T09:49:40Z")

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I use the DWD node to get the temperature of my city. The node works, but generates a lot of error codes in the IoBroker Log. Does anyone know what that could be?

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## [Worldmap + Geofence](https://discourse.nodered.org/t/worldmap-geofence/23648)

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**Author:** [@robo67](https://discourse.nodered.org/u/robo67)\
**Replies:** 0\
**Last updated:** [26 March 2020 01:33 UTC](https://discourse.nodered.org/t/worldmap-geofence/23648 "2020-03-26T01:33:20Z")

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Is there a way to link the worldmap and geofence nodes so one could define the geofence area in worldmap and link that area to the geofence node for monitoring? Or, could the geofence functionality simply go into the wo…

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## [\[ Solved \] \[ Add module \] Need help with adding external npm module](https://discourse.nodered.org/t/solved-add-module-need-help-with-adding-external-npm-module/23621)

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**Author:** [@tomtom30](https://discourse.nodered.org/u/tomtom30)\
**Replies:** 6\
**Last updated:** [25 March 2020 23:37 UTC](https://discourse.nodered.org/t/solved-add-module-need-help-with-adding-external-npm-module/23621 "2020-03-25T23:37:12Z")

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Hi, I need your help about external module I try to use faux-api-client and I added it in settings.js and restart. Here is my function code : var fauxapi = context.global.fauxapi; console.log(fauxapi); const client = …

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## [Node red efficiency](https://discourse.nodered.org/t/node-red-efficiency/23615)

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**Author:** [@marcmattar](https://discourse.nodered.org/u/marcmattar)\
**Replies:** 2\
**Last updated:** [25 March 2020 21:03 UTC](https://discourse.nodered.org/t/node-red-efficiency/23615 "2020-03-25T21:03:18Z")

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I want to create a program for my company that includes products and licences that we sell, they will have a start date and end date for every product that every customer is using. I also want an automated email that se…

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## [RFID with Raspberry Pi through Node-Red](https://discourse.nodered.org/t/rfid-with-raspberry-pi-through-node-red/23575)

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**Author:** [@usmanEmder](https://discourse.nodered.org/u/usmanEmder)\
**Replies:** 12\
**Last updated:** [25 March 2020 20:56 UTC](https://discourse.nodered.org/t/rfid-with-raspberry-pi-through-node-red/23575 "2020-03-25T20:56:36Z")

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I want to connect RFID with Raspberry Pi Through node-red. While it is working fine with python code.

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## [BT broken after using cam](https://discourse.nodered.org/t/bt-broken-after-using-cam/23494)

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**Author:** [@mruch](https://discourse.nodered.org/u/mruch)\
**Replies:** 15\
**Last updated:** [25 March 2020 18:18 UTC](https://discourse.nodered.org/t/bt-broken-after-using-cam/23494 "2020-03-25T18:18:01Z")

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Hi i discovered a strange behaviour on my Raspi 4. I use a flow to get temperature and humidity from a Xiaomi Bluetooth device. Additionaly a pic is taken by the camera connected via csi. I use: node-red-contrib-camer…

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## [Can a \`change\` node access a globaI variable if it's an array?](https://discourse.nodered.org/t/can-a-change-node-access-a-globai-variable-if-its-an-array/23629)

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**Author:** [@zenofmud](https://discourse.nodered.org/u/zenofmud)\
**Replies:** 2\
**Last updated:** [25 March 2020 16:48 UTC](https://discourse.nodered.org/t/can-a-change-node-access-a-globai-variable-if-its-an-array/23629 "2020-03-25T16:48:03Z")

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I'm trying to build a remote tic-tac-toe game with my grandson. I'm storing the 'board' in a global array 'board' as a 3x3 array var b = \[\[9,9,9\],\[9,9,9\],\[9,9,9\]\] global.set("board",b) The board is a set of buttons and…

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## [Servo Motor with fixed angle](https://discourse.nodered.org/t/servo-motor-with-fixed-angle/22678)

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**Author:** [@usmanEmder](https://discourse.nodered.org/u/usmanEmder)\
**Replies:** 29\
**Last updated:** [25 March 2020 16:30 UTC](https://discourse.nodered.org/t/servo-motor-with-fixed-angle/22678 "2020-03-25T16:30:21Z")

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Hi. I am making a smart home prototype where I connected the door with Servo-motor and I wanna rotate the motor on one fix position (95°) then it can open my door. Now I switch from the dashboard and connect it with GPIO…

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## [Custom node, dynamic editor by ajax](https://discourse.nodered.org/t/custom-node-dynamic-editor-by-ajax/23625)

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**Author:** [@juncaofish](https://discourse.nodered.org/u/juncaofish)\
**Replies:** 4\
**Last updated:** [25 March 2020 16:01 UTC](https://discourse.nodered.org/t/custom-node-dynamic-editor-by-ajax/23625 "2020-03-25T16:01:26Z")

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Hello, everyone, I'd like to create a custom node, with dynamic editor, which changes it's form controls (like dropdown options) with ajax inside. Is it possible to implement within oneditprepare? Or should I use ui das…

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## [Upgrade NR 0.19.4 -\> 1.0.4: missing node types](https://discourse.nodered.org/t/upgrade-nr-0-19-4-1-0-4-missing-node-types/23572)

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**Author:** [@Marooned](https://discourse.nodered.org/u/Marooned)\
**Replies:** 9\
**Last updated:** [25 March 2020 15:29 UTC](https://discourse.nodered.org/t/upgrade-nr-0-19-4-1-0-4-missing-node-types/23572 "2020-03-25T15:29:27Z")

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Hi there I was running NR 0.19.4 (NodeJS v8.11.1) on RPi and wanted to use msg.reset for Join Node. As it was not present, I decided to upgrade NR. I used script from https://nodered.org/docs/getting-started/raspberryp…

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## [Telegram Switch Error unauthorized](https://discourse.nodered.org/t/telegram-switch-error-unauthorized/23555)

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**Author:** [@pedroware](https://discourse.nodered.org/u/pedroware)\
**Replies:** 12\
**Last updated:** [25 March 2020 15:04 UTC](https://discourse.nodered.org/t/telegram-switch-error-unauthorized/23555 "2020-03-25T15:04:12Z")

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Hi, my Telegram Switch gives the following error: received callback in 2939\*\*\*\*\* from 'undefined' was unauthorized Can you help correct it please?

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## [Store and merge data through join nodes?](https://discourse.nodered.org/t/store-and-merge-data-through-join-nodes/23375)

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**Author:** [@RobP](https://discourse.nodered.org/u/RobP)\
**Replies:** 10\
**Last updated:** [25 March 2020 14:24 UTC](https://discourse.nodered.org/t/store-and-merge-data-through-join-nodes/23375 "2020-03-25T14:24:47Z")

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I have several flows, with subflows and nest subflows. Any of these flows can have a join (not always with a split). All these flows do lots of different things, mostly in parallel. All the flows eventually join up and w…

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## [MQTT node converts topic](https://discourse.nodered.org/t/mqtt-node-converts-topic/23619)

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**Author:** [@Hammerfels](https://discourse.nodered.org/u/Hammerfels)\
**Replies:** 2\
**Last updated:** [25 March 2020 14:00 UTC](https://discourse.nodered.org/t/mqtt-node-converts-topic/23619 "2020-03-25T14:00:07Z")

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Hello everyone, I realized that the MQTT out node converts dots in the topic to slashes. e.g. something.else --\> something/else Is there a way to change this behavior? Kind regards

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## [Long shot but any help would be great](https://discourse.nodered.org/t/long-shot-but-any-help-would-be-great/23617)

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**Author:** [@shuri1](https://discourse.nodered.org/u/shuri1)\
**Replies:** 2\
**Last updated:** [25 March 2020 13:52 UTC](https://discourse.nodered.org/t/long-shot-but-any-help-would-be-great/23617 "2020-03-25T13:52:14Z")

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I'm using a multitech conduit...which apparently has an older version of node-red on it I'm trying to npm some of the nodes.....but whenever i run npm i get: ANY advice would be greatly appreciated...i've hard reset, i…

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## [Help with contexts please](https://discourse.nodered.org/t/help-with-contexts-please/23602)

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**Author:** [@pagaille](https://discourse.nodered.org/u/pagaille)\
**Replies:** 11\
**Last updated:** [25 March 2020 10:24 UTC](https://discourse.nodered.org/t/help-with-contexts-please/23602 "2020-03-25T10:24:45Z")

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Hi there, I'm new to Node-Red, I'm having fun ! :blush: $ Please advice : I'm trying to create a programmable and resettable timer. I'm using the node-red-contrib-loop-processing nodes. The counter works, but if I us…

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## [Needing help with manual override switch](https://discourse.nodered.org/t/needing-help-with-manual-override-switch/23595)

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**Author:** [@Jez](https://discourse.nodered.org/u/Jez)\
**Replies:** 5\
**Last updated:** [25 March 2020 11:55 UTC](https://discourse.nodered.org/t/needing-help-with-manual-override-switch/23595 "2020-03-25T11:55:46Z")

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Hi All, Im switching a fan on and off with a function node 'fan control' between to set points and now i would like to add a manual override function node 'Auto/Manual switch' but i just can't get it to work. would some…

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## [Keep track of volume number in NR / HA](https://discourse.nodered.org/t/keep-track-of-volume-number-in-nr-ha/23541)

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**Author:** [@MechaMatt](https://discourse.nodered.org/u/MechaMatt)\
**Replies:** 10\
**Last updated:** [25 March 2020 11:17 UTC](https://discourse.nodered.org/t/keep-track-of-volume-number-in-nr-ha/23541 "2020-03-25T11:17:15Z")

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For watching tv, I send IR codes to my dumb amplifier to: turn the volume down x3 when changing to tv input turn it down x4 when changing to HD (louder) channels (turns input boolean on in Home Assistant) turn it up x…

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## [Help for visualize my dashboard](https://discourse.nodered.org/t/help-for-visualize-my-dashboard/23611)

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**Author:** [@hous](https://discourse.nodered.org/u/hous)\
**Replies:** 0\
**Last updated:** [25 March 2020 11:04 UTC](https://discourse.nodered.org/t/help-for-visualize-my-dashboard/23611 "2020-03-25T11:04:57Z")

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Hello, i made a dashboard with table,gauge,chart and button. I need to watch my dashboard with any browser. So i open the port 1880 then made the route in my internet box. The solution work and i can watch my dashboard…

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## [Modbus TCP 32 bits register from 16 bits register](https://discourse.nodered.org/t/modbus-tcp-32-bits-register-from-16-bits-register/23597)

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**Author:** [@DaveMou](https://discourse.nodered.org/u/DaveMou)\
**Replies:** 4\
**Last updated:** [25 March 2020 10:50 UTC](https://discourse.nodered.org/t/modbus-tcp-32-bits-register-from-16-bits-register/23597 "2020-03-25T10:50:27Z")

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Hi guys, I have an Schneider Energy Meter PM5110 and some registers are float 32 bits. I read all of them with modbus poll . I have read them with node red but I have two 16 bits registers. Attached I try to read the f…

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## [Make a large number(50/100?) of node and sensor in Node red](https://discourse.nodered.org/t/make-a-large-number-50-100-of-node-and-sensor-in-node-red/23599)

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**Author:** [@apex](https://discourse.nodered.org/u/apex)\
**Replies:** 5\
**Last updated:** [25 March 2020 09:26 UTC](https://discourse.nodered.org/t/make-a-large-number-50-100-of-node-and-sensor-in-node-red/23599 "2020-03-25T09:26:42Z")

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I have make a complete flow for one sensor in node red. And wanna ask anyway beside " copy and paste, export and import " to make extra say 50/100 more .... anyother way like template that can modify some sensor id/val…

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## [Http request not working ? "Unauthorized"](https://discourse.nodered.org/t/http-request-not-working-unauthorized/23539)

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**Author:** [@LucasSaraivaAzevedo](https://discourse.nodered.org/u/LucasSaraivaAzevedo)\
**Replies:** 1\
**Last updated:** [24 March 2020 21:17 UTC](https://discourse.nodered.org/t/http-request-not-working-unauthorized/23539 "2020-03-24T21:17:26Z")

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Hy guys. Soo this is my code \[{"id":"36695f05.8b831","type":"http in","z":"24c290d1.45e2","name":"","url":"/ficheiro","method":"post","upload":true,"swaggerDoc":"","x":110,"y":920,"wires":\[\["8abe5d58.c887e","9af5bb14.ae…

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## [Node-Email error with SSL](https://discourse.nodered.org/t/node-email-error-with-ssl/23593)

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**Author:** [@justinj0305](https://discourse.nodered.org/u/justinj0305)\
**Replies:** 0\
**Last updated:** [25 March 2020 05:01 UTC](https://discourse.nodered.org/t/node-email-error-with-ssl/23593 "2020-03-25T05:01:50Z")

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I'm trying to use node-red-node-email 1.7.7 on a Node-Red 1.0.4-10 docker image and I get the following when I try and send an email with the node via Office365 SMTP server: Error: 140566848294216:error:1408F10B:SSL rou…

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## [Pi GPIO node econnrefused](https://discourse.nodered.org/t/pi-gpio-node-econnrefused/23584)

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**Author:** [@jfpedno](https://discourse.nodered.org/u/jfpedno)\
**Replies:** 7\
**Last updated:** [25 March 2020 00:41 UTC](https://discourse.nodered.org/t/pi-gpio-node-econnrefused/23584 "2020-03-25T00:41:15Z")

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node red on 127.17.0.1:1880 because it is setup with into container. did the sudo pi gpiod into terminal set the port at 1880 into the gpiod output node I tried the default port at 8888 not better First time I hit th…

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## [BLE Beacon scanner](https://discourse.nodered.org/t/ble-beacon-scanner/23590)

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**Author:** [@rdcustomeraccess](https://discourse.nodered.org/u/rdcustomeraccess)\
**Replies:** 0\
**Last updated:** [24 March 2020 22:43 UTC](https://discourse.nodered.org/t/ble-beacon-scanner/23590 "2020-03-24T22:43:45Z")

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hello, I would like to know if there is any readily available node for BLE Beacon scanner that is not using legacy scanning method which a combination of native application code for the scanning bluetooth ble beacon as …

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## [Save MQTT data to MySQL](https://discourse.nodered.org/t/save-mqtt-data-to-mysql/23569)

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**Author:** [@eduardoluiztodero](https://discourse.nodered.org/u/eduardoluiztodero)\
**Replies:** 8\
**Last updated:** [24 March 2020 21:05 UTC](https://discourse.nodered.org/t/save-mqtt-data-to-mysql/23569 "2020-03-24T21:05:23Z")

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Hello guys, I'm doing a project to monitor temperature, humidity and air quality in chicken farms. One need is to save the data in a database to generate indicators. I am sending the data to an MQTT broker and need to sa…

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## [Node -Red running locally -](https://discourse.nodered.org/t/node-red-running-locally/23338)

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**Author:** [@NODE777](https://discourse.nodered.org/u/NODE777)\
**Replies:** 5\
**Last updated:** [24 March 2020 17:46 UTC](https://discourse.nodered.org/t/node-red-running-locally/23338 "2020-03-24T17:46:33Z")

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Hi there Currently my command line interface is running partially. Attached is a pic of command l.interface; As can be seen, it run up certain point and it stop. I've reinstalled node.js but the issue is going on. …

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## [Join node - pass only every 2nd subsequent msg?](https://discourse.nodered.org/t/join-node-pass-only-every-2nd-subsequent-msg/23516)

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**Author:** [@m\_elias](https://discourse.nodered.org/u/m_elias)\
**Replies:** 2\
**Last updated:** [24 March 2020 17:35 UTC](https://discourse.nodered.org/t/join-node-pass-only-every-2nd-subsequent-msg/23516 "2020-03-24T17:35:04Z")

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I'm using a join node in manual mode, to join 7 payloads by topic into a key/value object. After the initial 7 payloads are joined, the message is sent, perfect. Now, two of the messages are temperature and humidity upda…

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## [File-in count line (msg.parts.count) on per line message](https://discourse.nodered.org/t/file-in-count-line-msg-parts-count-on-per-line-message/23577)

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**Author:** [@bug00](https://discourse.nodered.org/u/bug00)\
**Replies:** 0\
**Last updated:** [24 March 2020 17:30 UTC](https://discourse.nodered.org/t/file-in-count-line-msg-parts-count-on-per-line-message/23577 "2020-03-24T17:30:01Z")

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Hi, I had parrallel node that follow a file-in, msg per line config. Node is asynchro and the order of my line in entry is not same when i join. I can do a split node who take a string buffer, then i had the msg.parts.…

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## [Simple possibility to measure time](https://discourse.nodered.org/t/simple-possibility-to-measure-time/23561)

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**Author:** [@Cyber](https://discourse.nodered.org/u/Cyber)\
**Replies:** 6\
**Last updated:** [24 March 2020 15:36 UTC](https://discourse.nodered.org/t/simple-possibility-to-measure-time/23561 "2020-03-24T15:36:48Z")

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Hello, I am new to node red. I searched a lot, but I gess with the wrong searchterms. :-/ I would like to have a possibility to measure the "on" time of a device. It is switched with HTTP, I have it already in place i…

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## [For each Line in a text file do](https://discourse.nodered.org/t/for-each-line-in-a-text-file-do/22720)

<div class="topic-metadata">

**Author:** [@LucasSaraivaAzevedo](https://discourse.nodered.org/u/LucasSaraivaAzevedo)\
**Replies:** 55\
**Last updated:** [24 March 2020 13:50 UTC](https://discourse.nodered.org/t/for-each-line-in-a-text-file-do/22720 "2020-03-24T13:50:19Z")

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Hy Guys... Sorry noob question here. I would like to know how can i read a txt file and for each line that the file have do a wget. ( Basically the file will contains EAN from different products and check on a website )…

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