# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=720

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

**Page:** 721

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## [How to insert two or more variable in http request](https://discourse.nodered.org/t/how-to-insert-two-or-more-variable-in-http-request/29476)

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**Author:** [@apex](https://discourse.nodered.org/u/apex)\
**Replies:** 5\
**Last updated:** [7 July 2020 05:49 UTC](https://discourse.nodered.org/t/how-to-insert-two-or-more-variable-in-http-request/29476 "2020-07-07T05:49:10Z")

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HI guy i am working on API which require 2 or more variable in the URL link something like this: by now i only able to work on SIng le variable like {{{query}}} or {{{payload}}} but not more than one. My http get w…

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## [Send values to an array, write to CSV when full](https://discourse.nodered.org/t/send-values-to-an-array-write-to-csv-when-full/11092)

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**Author:** [@camo200sx](https://discourse.nodered.org/u/camo200sx)\
**Replies:** 9\
**Last updated:** [7 July 2020 01:13 UTC](https://discourse.nodered.org/t/send-values-to-an-array-write-to-csv-when-full/11092 "2020-07-07T01:13:30Z")

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Heya folks I have a project underway which will read sensor values and write to a CSV file. So far with 1 sensor I managed to add a timestamp and value to the file in CSV format with each read. I think in order to be mo…

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## [Alert if State 'on' too Frequently](https://discourse.nodered.org/t/alert-if-state-on-too-frequently/29576)

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**Author:** [@onyxhat](https://discourse.nodered.org/u/onyxhat)\
**Replies:** 3\
**Last updated:** [7 July 2020 00:24 UTC](https://discourse.nodered.org/t/alert-if-state-on-too-frequently/29576 "2020-07-07T00:24:14Z")

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I'm wanting to use Node-Red with Home Assistant to alert me if a certain device state is running too frequently (state 'on' twice in 15m or less). I've taken a few shots at this thinking I could use MQTT to flag the stat…

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## [DSM Node Help Required](https://discourse.nodered.org/t/dsm-node-help-required/29624)

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**Author:** [@Buckskin](https://discourse.nodered.org/u/Buckskin)\
**Replies:** 1\
**Last updated:** [6 July 2020 22:46 UTC](https://discourse.nodered.org/t/dsm-node-help-required/29624 "2020-07-06T22:46:16Z")

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I have tried Paul-Reed's Node-Red on a Pi backup flow, which works well. However, I would like to use it on several Pis so I want to amend the save filename to include an identifier. At the moment I am using a Change Nod…

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## [Generate SQL statement from 2 mqtt messages](https://discourse.nodered.org/t/generate-sql-statement-from-2-mqtt-messages/29613)

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**Author:** [@Peter](https://discourse.nodered.org/u/Peter)\
**Replies:** 39\
**Last updated:** [6 July 2020 22:04 UTC](https://discourse.nodered.org/t/generate-sql-statement-from-2-mqtt-messages/29613 "2020-07-06T22:04:01Z")

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Good evening gents, I have a few issues that are just getting the better of me and don't seem to figure this out, probably this something small, but I don't seem to get it right. Hardware: Raspberry Pi 4 / Node Red vers…

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## [Use a Wiegand RFID Reader](https://discourse.nodered.org/t/use-a-wiegand-rfid-reader/29565)

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**Author:** [@MasterOfPuppets](https://discourse.nodered.org/u/MasterOfPuppets)\
**Replies:** 5\
**Last updated:** [6 July 2020 21:06 UTC](https://discourse.nodered.org/t/use-a-wiegand-rfid-reader/29565 "2020-07-06T21:06:45Z")

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Hello guys, after successfully testing with an RC522 RFID reader in node read i wand to use a more beautiful reader without building case on my own. So i only find the KR601 on aliexpress that uses the wiegand protocol. …

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## [How to recovery lost flows file?](https://discourse.nodered.org/t/how-to-recovery-lost-flows-file/29528)

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**Author:** [@Nodi.Rubrum](https://discourse.nodered.org/u/Nodi.Rubrum)\
**Replies:** 18\
**Last updated:** [6 July 2020 20:42 UTC](https://discourse.nodered.org/t/how-to-recovery-lost-flows-file/29528 "2020-07-06T20:42:23Z")

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Ok, a couple of minutes ago node-red crashed, I was just finishing up a rather complex new flow... and poof! The flow file under .node-red directory is gone. The cred file is there but the actual flow file is gone. Th…

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## [Timestamp to current date and time?](https://discourse.nodered.org/t/timestamp-to-current-date-and-time/873)

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**Author:** [@flynn](https://discourse.nodered.org/u/flynn)\
**Replies:** 29\
**Last updated:** [6 July 2020 19:11 UTC](https://discourse.nodered.org/t/timestamp-to-current-date-and-time/873 "2020-07-06T19:11:42Z")

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Hi all… what would the code be that goes into a function node to take a timestamp and output the date and time in the normal date and time format?

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## [Audio Out Node on external devices / speaker](https://discourse.nodered.org/t/audio-out-node-on-external-devices-speaker/29616)

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**Author:** [@get-command](https://discourse.nodered.org/u/get-command)\
**Replies:** 0\
**Last updated:** [6 July 2020 19:00 UTC](https://discourse.nodered.org/t/audio-out-node-on-external-devices-speaker/29616 "2020-07-06T19:00:20Z")

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Hi there, I'm test the 'audio out' node and this function very well of the local machine or node red interface. Can i send the audio node on a external device? This could be funny... exaple: motion detector is detected…

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## [Processing of Node-Red during deploy](https://discourse.nodered.org/t/processing-of-node-red-during-deploy/29589)

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**Author:** [@crackytsi](https://discourse.nodered.org/u/crackytsi)\
**Replies:** 6\
**Last updated:** [6 July 2020 17:33 UTC](https://discourse.nodered.org/t/processing-of-node-red-during-deploy/29589 "2020-07-06T17:33:13Z")

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Hi, If there is currently a flow processed while "deploying" a flow, from my understanding the current flow is aborted (wherever it is) and everything that is currently in the queue is forgotten until a new trigger star…

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## [Delay Not Working?](https://discourse.nodered.org/t/delay-not-working/29524)

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**Author:** [@Nodi.Rubrum](https://discourse.nodered.org/u/Nodi.Rubrum)\
**Replies:** 21\
**Last updated:** [6 July 2020 13:11 UTC](https://discourse.nodered.org/t/delay-not-working/29524 "2020-07-06T13:11:45Z")

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Ok, this one has me stumped. As I read the documentation, delay node should delay each message for X time, right? Whereas rate forces each message to be released (forward) at a given rate, right? This means that if I …

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## [How to make blinked SVG object for attention?](https://discourse.nodered.org/t/how-to-make-blinked-svg-object-for-attention/29587)

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**Author:** [@muharremsari](https://discourse.nodered.org/u/muharremsari)\
**Replies:** 4\
**Last updated:** [6 July 2020 10:39 UTC](https://discourse.nodered.org/t/how-to-make-blinked-svg-object-for-attention/29587 "2020-07-06T10:39:18Z")

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Hi all I have pedestrian icon SVG object. I would make a blinked attention image. I tired this ineffective code. What is my fault. Best regards \[{"id":"43340326.b8e7dc","type":"tab","label":"Flow 1","disabled":false,"…

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## [Connection to SE Machine Advisor Server](https://discourse.nodered.org/t/connection-to-se-machine-advisor-server/17044)

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**Author:** [@Borodkin\_D](https://discourse.nodered.org/u/Borodkin_D)\
**Replies:** 5\
**Last updated:** [6 July 2020 06:35 UTC](https://discourse.nodered.org/t/connection-to-se-machine-advisor-server/17044 "2020-07-06T06:35:22Z")

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Hello everyone! I am starting to learn Nodered and my first task is to send data to the Schneider Electric Machine Advisor server. I have such data to connect: So, in Node-Red I created an output in which I inserted t…

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## [Playing mp3 Audio](https://discourse.nodered.org/t/playing-mp3-audio/8188)

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**Author:** [@meckyreuss](https://discourse.nodered.org/u/meckyreuss)\
**Replies:** 23\
**Last updated:** [6 July 2020 06:14 UTC](https://discourse.nodered.org/t/playing-mp3-audio/8188 "2020-07-06T06:14:08Z")

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Hi, I am new to Node Red and am trying to get it play an mp3 file. I have installed three modules but can't get any of them to work. Any help would be appreciated. These are the three modules that I tried to use: node-…

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## [Node Red Dashboard Chart Time axis (x axis) doesn't move](https://discourse.nodered.org/t/node-red-dashboard-chart-time-axis-x-axis-doesnt-move/28022)

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**Author:** [@Jude.Robise](https://discourse.nodered.org/u/Jude.Robise)\
**Replies:** 14\
**Last updated:** [6 July 2020 04:40 UTC](https://discourse.nodered.org/t/node-red-dashboard-chart-time-axis-x-axis-doesnt-move/28022 "2020-07-06T04:40:18Z")

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Hey guys, Node Red Dashboard Chart Time axis (x axis) doesn't move sometimes. Only the Y axis data updates in the same position. Therefore I can see only a straight line always. Please see the images attached. Thanks i…

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## [How to correctly disable a button after it has been clicked?](https://discourse.nodered.org/t/how-to-correctly-disable-a-button-after-it-has-been-clicked/29577)

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**Author:** [@Nodi.Rubrum](https://discourse.nodered.org/u/Nodi.Rubrum)\
**Replies:** 2\
**Last updated:** [5 July 2020 23:41 UTC](https://discourse.nodered.org/t/how-to-correctly-disable-a-button-after-it-has-been-clicked/29577 "2020-07-05T23:41:48Z")

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I have been trying a couple of different ways to disable a button once it has been clicked. I need the original payload to continue. But can't seem to crack this nut... because if I set msg.enabled to false, and send t…

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## [Strange Happening with MQTT & zigbee2mqtt Nodes](https://discourse.nodered.org/t/strange-happening-with-mqtt-zigbee2mqtt-nodes/29400)

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**Author:** [@Buckskin](https://discourse.nodered.org/u/Buckskin)\
**Replies:** 19\
**Last updated:** [5 July 2020 23:18 UTC](https://discourse.nodered.org/t/strange-happening-with-mqtt-zigbee2mqtt-nodes/29400 "2020-07-05T23:18:41Z")

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I have recently started using zigbee sensors (very small so SHMBO likes that they can be hidden). I already have a variety of 433Mhz sensors chatting to Node-Red though rtl\_433 & MQTT. There seem to be a variety of zigbe…

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## [Kaa IoT Platform](https://discourse.nodered.org/t/kaa-iot-platform/29574)

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**Author:** [@jrahumadag](https://discourse.nodered.org/u/jrahumadag)\
**Replies:** 0\
**Last updated:** [5 July 2020 22:08 UTC](https://discourse.nodered.org/t/kaa-iot-platform/29574 "2020-07-05T22:08:07Z")

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Hi, I'm developing a little project using NodeRed and Ubidots, and now i'm trying Kaa IoT platform. I'm looking for some information, like webinar or tutorials; but i didn't found something who answer my doubt. I can'…

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## [Help getting a Hue Lamp to flash](https://discourse.nodered.org/t/help-getting-a-hue-lamp-to-flash/29572)

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**Author:** [@peejayw](https://discourse.nodered.org/u/peejayw)\
**Replies:** 0\
**Last updated:** [5 July 2020 22:05 UTC](https://discourse.nodered.org/t/help-getting-a-hue-lamp-to-flash/29572 "2020-07-05T22:05:48Z")

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I am using Node Red in Home Assistant to turn on a Hue light when the motion detector in my letterbox is activated and that works fine. What I want to do is have the light change to red and flash on and off for around 5…

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## [Is this a job for an array?](https://discourse.nodered.org/t/is-this-a-job-for-an-array/29537)

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**Author:** [@impvan](https://discourse.nodered.org/u/impvan)\
**Replies:** 7\
**Last updated:** [5 July 2020 19:46 UTC](https://discourse.nodered.org/t/is-this-a-job-for-an-array/29537 "2020-07-05T19:46:06Z")

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I have a large number of sensors, which return ID:value pairs like this- DS18B20-1: object Id: "030197946C6B" Temperature: 21.6 I want to change each ID into a 'friendly name', and also to apply a offset agains…

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## [Node-red-contrib-ui-svg example flow not working properly](https://discourse.nodered.org/t/node-red-contrib-ui-svg-example-flow-not-working-properly/29545)

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**Author:** [@zenofmud](https://discourse.nodered.org/u/zenofmud)\
**Replies:** 3\
**Last updated:** [5 July 2020 15:35 UTC](https://discourse.nodered.org/t/node-red-contrib-ui-svg-example-flow-not-working-properly/29545 "2020-07-05T15:35:08Z")

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I've installed node-red-contrib-ui-svg to start playing with it. So I imported the example flow. The example says 'click Station 10 for page 2'. When I click 'Station 10' I see page 2 momentarily and it reverts back to …

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## [Function Node undefined](https://discourse.nodered.org/t/function-node-undefined/29557)

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**Author:** [@IvyMike](https://discourse.nodered.org/u/IvyMike)\
**Replies:** 1\
**Last updated:** [5 July 2020 14:51 UTC](https://discourse.nodered.org/t/function-node-undefined/29557 "2020-07-05T14:51:05Z")

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Hello im trying to defined the two values that comes from each counter, but there isn´t a topic so the Function doesn´t know which value to use. What i want to do is simple, in the Function node i need to do a simple cal…

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## [How integrate existing HomeKit accessories?](https://discourse.nodered.org/t/how-integrate-existing-homekit-accessories/29513)

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**Author:** [@deboiph](https://discourse.nodered.org/u/deboiph)\
**Replies:** 5\
**Last updated:** [5 July 2020 08:46 UTC](https://discourse.nodered.org/t/how-integrate-existing-homekit-accessories/29513 "2020-07-05T08:46:19Z")

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Hello, I would like to implement a data logger potentially via node-red. Is there a plug-in allowing to retrieve data from HomeKit accessories like a temperature sensor (from an existing bridge)? The few ones that I fou…

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## [Error during install Modbus Node in raspberry pi4](https://discourse.nodered.org/t/error-during-install-modbus-node-in-raspberry-pi4/29492)

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**Author:** [@Moabdelwahed](https://discourse.nodered.org/u/Moabdelwahed)\
**Replies:** 3\
**Last updated:** [5 July 2020 06:31 UTC](https://discourse.nodered.org/t/error-during-install-modbus-node-in-raspberry-pi4/29492 "2020-07-05T06:31:19Z")

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Hi every one I start to learn Node-red from short time I install it in my computer and install all nodes I need and everything is ok but when I tried to use it with Raspberry pi4, I face issue in install node (node-re…

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## [German translation discussion](https://discourse.nodered.org/t/german-translation-discussion/29531)

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**Author:** [@hjfriedrich](https://discourse.nodered.org/u/hjfriedrich)\
**Replies:** 0\
**Last updated:** [5 July 2020 06:30 UTC](https://discourse.nodered.org/t/german-translation-discussion/29531 "2020-07-05T06:30:26Z")

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Hello everybody, I'd like to contribute as I came across some minor spelling issues in the german translation. Where is the right place to discuss them? Should I instead create a pull request?

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## [Node-RED version 1.1 on docker, won't start on Raspberry PI 3 and archlinuxarn](https://discourse.nodered.org/t/node-red-version-1-1-on-docker-wont-start-on-raspberry-pi-3-and-archlinuxarn/29408)

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**Author:** [@ckhmer1](https://discourse.nodered.org/u/ckhmer1)\
**Replies:** 1\
**Last updated:** [4 July 2020 21:02 UTC](https://discourse.nodered.org/t/node-red-version-1-1-on-docker-wont-start-on-raspberry-pi-3-and-archlinuxarn/29408 "2020-07-04T21:02:54Z")

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Hi, I'm just installing the new version of node-red, the 1.1 version, unfortunately, it is not running with the following error: \[root@pvr ~\]# docker -v run -it -p 1880:1880 --name mynodered nodered/node-red /usr/loca…

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## [Accessing moment.js in a function node (v1.1.0)](https://discourse.nodered.org/t/accessing-moment-js-in-a-function-node-v1-1-0/29500)

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**Author:** [@Paul-Reed](https://discourse.nodered.org/u/Paul-Reed)\
**Replies:** 3\
**Last updated:** [4 July 2020 19:18 UTC](https://discourse.nodered.org/t/accessing-moment-js-in-a-function-node-v1-1-0/29500 "2020-07-04T19:18:18Z")

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Adding $moment("2020-07-01T13:00:52.345Z").format('LLLL') as a jsonata expression in a change node, gives you Wednesday, July 1, 2020 1:00 PM - very nice. But including msg.payload = moment("2020-07-01T13:00:52.345Z").f…

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## [Automatic Excel table](https://discourse.nodered.org/t/automatic-excel-table/29299)

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**Author:** [@luismendes](https://discourse.nodered.org/u/luismendes)\
**Replies:** 2\
**Last updated:** [4 July 2020 17:02 UTC](https://discourse.nodered.org/t/automatic-excel-table/29299 "2020-07-04T17:02:00Z")

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My node-red Is sending information about the state and the time that state started to Excel, but i want that information in a table (the state above and the information of the date below) It's doing that: But I wante…

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## [Saving email attachment in gmail to local folder](https://discourse.nodered.org/t/saving-email-attachment-in-gmail-to-local-folder/29368)

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**Author:** [@cooolguyselva](https://discourse.nodered.org/u/cooolguyselva)\
**Replies:** 1\
**Last updated:** [4 July 2020 16:52 UTC](https://discourse.nodered.org/t/saving-email-attachment-in-gmail-to-local-folder/29368 "2020-07-04T16:52:26Z")

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Hi All, I am relatively new to Node Red . I am trying to save attachment in gmail to local folder and I am getting confused. Can someone guide me on this? thanks in advance!

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## [Scaling Node-Red instances](https://discourse.nodered.org/t/scaling-node-red-instances/29375)

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**Author:** [@vishal\_911](https://discourse.nodered.org/u/vishal_911)\
**Replies:** 1\
**Last updated:** [4 July 2020 16:50 UTC](https://discourse.nodered.org/t/scaling-node-red-instances/29375 "2020-07-04T16:50:18Z")

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I am working on setting up Node-RED on Kubernetes. On Kubernetes, number of instance of Node-RED can easily be scaled. I would like to know of use cases that a Node-RED user can do using multiple Node-RED instances?

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