# Latest

**URL:** https://discourse.nodered.org/latest.md?page=1049

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

**Page:** 1050

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## [Possible bug in v1.1: cannot add nodes with different z properties](https://discourse.nodered.org/t/possible-bug-in-v1-1-cannot-add-nodes-with-different-z-properties/29578)

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**Author:** [@PaulKeates1](https://discourse.nodered.org/u/PaulKeates1)\
**Replies:** 3\
**Last updated:** [7 July 2020 13:36 UTC](https://discourse.nodered.org/t/possible-bug-in-v1-1-cannot-add-nodes-with-different-z-properties/29578 "2020-07-07T13:36:46Z")

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Hi, Environment: Win 10. node-red v1.1. node.js 12.16.3. Chrome. I've been using v1.1 extensively for the weekend - moving VERY large automation projects to it. I really love the 'group' functionality - this is a ga…

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## [SQLITE CONSTRAINT Error](https://discourse.nodered.org/t/sqlite-constraint-error/29649)

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**Author:** [@Peter](https://discourse.nodered.org/u/Peter)\
**Replies:** 4\
**Last updated:** [7 July 2020 12:26 UTC](https://discourse.nodered.org/t/sqlite-constraint-error/29649 "2020-07-07T12:26:27Z")

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Good Day Everone, I have an unfamiliar issue that appears out of the blue and I have no reason why. When we have built the flow last night, it all worked fine, and this morning after redstart the flow just seems not to…

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## [Chamberlain MyQ integration changed](https://discourse.nodered.org/t/chamberlain-myq-integration-changed/29560)

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**Author:** [@jtmoderate876](https://discourse.nodered.org/u/jtmoderate876)\
**Replies:** 2\
**Last updated:** [7 July 2020 12:15 UTC](https://discourse.nodered.org/t/chamberlain-myq-integration-changed/29560 "2020-07-07T12:15:41Z")

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Years ago I integrated to Chamberlain MyQ garage door starting with the work of @nothingmn https://flows.nodered.org/flow/83f263d6f5f23e53e2aed85b96aadb3e This worked until 5/31/2020. Someone mentioned online that the…

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## [Using join Node and CSV Node](https://discourse.nodered.org/t/using-join-node-and-csv-node/29645)

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**Author:** [@Amir](https://discourse.nodered.org/u/Amir)\
**Replies:** 2\
**Last updated:** [7 July 2020 11:51 UTC](https://discourse.nodered.org/t/using-join-node-and-csv-node/29645 "2020-07-07T11:51:09Z")

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Good morning every one, I want to write an .CSV file that contains the data captured from a sensor, i was succeeded to make the csv file when i wanted to store one parameter from the sensor but when i try to collect ot…

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## [PID Controller for Cooling - Looking for Help](https://discourse.nodered.org/t/pid-controller-for-cooling-looking-for-help/29395)

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**Author:** [@oncdastan](https://discourse.nodered.org/u/oncdastan)\
**Replies:** 24\
**Last updated:** [7 July 2020 11:29 UTC](https://discourse.nodered.org/t/pid-controller-for-cooling-looking-for-help/29395 "2020-07-07T11:29:16Z")

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Hi. I am trying to control a fan depending on the temperature I read from DS18B20. This is the PID node that I am using: I am new to Node-Red, and I don't know about PID controllers. I read the example provided by the…

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## [Dashboard chart scale changes on refresh](https://discourse.nodered.org/t/dashboard-chart-scale-changes-on-refresh/29642)

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**Author:** [@tarsel](https://discourse.nodered.org/u/tarsel)\
**Replies:** 5\
**Last updated:** [7 July 2020 11:22 UTC](https://discourse.nodered.org/t/dashboard-chart-scale-changes-on-refresh/29642 "2020-07-07T11:22:03Z")

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Hi all I have been scratching my head on this one for a while. I have various values being logged to dashboard charts. When I navigate to a different tab on my dashboard and then return, the x scale of the chart has tot…

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## [Influx DB data collection](https://discourse.nodered.org/t/influx-db-data-collection/29535)

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**Author:** [@eontec](https://discourse.nodered.org/u/eontec)\
**Replies:** 16\
**Last updated:** [7 July 2020 11:20 UTC](https://discourse.nodered.org/t/influx-db-data-collection/29535 "2020-07-07T11:20:02Z")

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Hi, I am an electrician and gas installer by trade. I am a complete noob to programing and see that I need to evolve with the times and venturing into the remote monitoring space. I have been able to so far, with the h…

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## [Node creation from Ansible (or other) template?](https://discourse.nodered.org/t/node-creation-from-ansible-or-other-template/29598)

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**Author:** [@Colin](https://discourse.nodered.org/u/Colin)\
**Replies:** 16\
**Last updated:** [7 July 2020 11:10 UTC](https://discourse.nodered.org/t/node-creation-from-ansible-or-other-template/29598 "2020-07-07T11:10:44Z")

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It has occurred to me that one could write an Ansible role which would take a yaml file defining the requirements of a node, including the name, field names and types, and so on, and it would automatically generate skele…

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## [(Circular) buffer node](https://discourse.nodered.org/t/circular-buffer-node/29639)

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**Author:** [@Joris6](https://discourse.nodered.org/u/Joris6)\
**Replies:** 2\
**Last updated:** [7 July 2020 10:25 UTC](https://discourse.nodered.org/t/circular-buffer-node/29639 "2020-07-07T10:25:23Z")

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Has somebody a good hint for me if there is a node that is a (circular) buffer? I've been looking around, but I was personally unable to find one. I need for my project a buffer that stack my msg.payloads and releases on…

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## [Multiple lines on a graph from one message?](https://discourse.nodered.org/t/multiple-lines-on-a-graph-from-one-message/9315)

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**Author:** [@jbudd](https://discourse.nodered.org/u/jbudd)\
**Replies:** 6\
**Last updated:** [7 July 2020 10:23 UTC](https://discourse.nodered.org/t/multiple-lines-on-a-graph-from-one-message/9315 "2020-07-07T10:23:14Z")

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My flow displays temperature, pressure and humidity from my BME280 sensor, compared with local data from OpenWeatherMap. I have a function node to send 11 seperate messages to 4 graphs on the dashboard. Is this the righ…

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## [Display in the order pressed](https://discourse.nodered.org/t/display-in-the-order-pressed/29646)

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**Author:** [@TOSHI1](https://discourse.nodered.org/u/TOSHI1)\
**Replies:** 0\
**Last updated:** [7 July 2020 10:13 UTC](https://discourse.nodered.org/t/display-in-the-order-pressed/29646 "2020-07-07T10:13:39Z")

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We create buttons on the dashboard to show where and when we are calling. You can view it, but you can only display text in a fixed location. How can I display them from the top in the order in which they were pressed, s…

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## [Multiple lines on single chart ui](https://discourse.nodered.org/t/multiple-lines-on-single-chart-ui/29266)

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**Author:** [@deekshaha](https://discourse.nodered.org/u/deekshaha)\
**Replies:** 12\
**Last updated:** [7 July 2020 09:55 UTC](https://discourse.nodered.org/t/multiple-lines-on-single-chart-ui/29266 "2020-07-07T09:55:58Z")

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Hi .I want to display temperature and windspeed from open weather map api call in the chart node. Code works perfectly fine when displaying one attribute data on chart. This is my function: var chartdata = msg.payload;…

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## [Make FTP server to transfer file directly to Nodered server](https://discourse.nodered.org/t/make-ftp-server-to-transfer-file-directly-to-nodered-server/29636)

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**Author:** [@mikeh](https://discourse.nodered.org/u/mikeh)\
**Replies:** 3\
**Last updated:** [7 July 2020 09:51 UTC](https://discourse.nodered.org/t/make-ftp-server-to-transfer-file-directly-to-nodered-server/29636 "2020-07-07T09:51:01Z")

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I want to be able to write directly to a local folder in my nodered server through FTP protocol. Is this possible? If so, I hope someone can guide me how. Our nodered server is hosted in Azure.

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## [Going beyond Node-RED 1.x](https://discourse.nodered.org/t/going-beyond-node-red-1-x/29320)

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**Author:** [@knolleary](https://discourse.nodered.org/u/knolleary)\
**Replies:** 10\
**Last updated:** [3 July 2020 18:50 UTC](https://discourse.nodered.org/t/going-beyond-node-red-1-x/29320 "2020-07-03T18:50:04Z")

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We've just published a new post to the Node-RED blog, that will be of interest to you all. It describes how we plan to approach future releases of Node-RED, how that relates to Node.js releases, and when you can expect …

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## [Allocation failed - JavaScript heap out of memory](https://discourse.nodered.org/t/allocation-failed-javascript-heap-out-of-memory/29618)

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**Author:** [@JayCee](https://discourse.nodered.org/u/JayCee)\
**Replies:** 2\
**Last updated:** [7 July 2020 08:50 UTC](https://discourse.nodered.org/t/allocation-failed-javascript-heap-out-of-memory/29618 "2020-07-07T08:50:24Z")

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Hello Folks. I have to debug what is going on with my NR. Deployed in container, docker node-red. I was trying many things in parallel, so I don't know what is triggering crash of NR. How can I debug it deeper, which f…

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## [\[Doc feature request\]A more complex contrib node example](https://discourse.nodered.org/t/doc-feature-request-a-more-complex-contrib-node-example/29415)

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**Author:** [@cymplecy](https://discourse.nodered.org/u/cymplecy)\
**Replies:** 24\
**Last updated:** [7 July 2020 08:41 UTC](https://discourse.nodered.org/t/doc-feature-request-a-more-complex-contrib-node-example/29415 "2020-07-07T08:41:17Z")

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Having battled (and still battling as we speak) with adding extra features to an existing simple contrib node, I think it would be a REALLY good idea to have a slightly (just a bit) more complex example than just the cu…

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## [SamsungTV Flow, help please](https://discourse.nodered.org/t/samsungtv-flow-help-please/12055)

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**Author:** [@sucram](https://discourse.nodered.org/u/sucram)\
**Replies:** 7\
**Last updated:** [7 July 2020 08:25 UTC](https://discourse.nodered.org/t/samsungtv-flow-help-please/12055 "2020-07-07T08:25:15Z")

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I hesitate to ask but i have tried for hours to get a samsung tv flow to work, no luck at all. Have tried several contrib-samsungtv / samsungnewtv etc nodes. I wonder if anyone has a flow they might like to share ? I …

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## [Function to add L and H registers in Modbus](https://discourse.nodered.org/t/function-to-add-l-and-h-registers-in-modbus/29221)

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**Author:** [@swanside](https://discourse.nodered.org/u/swanside)\
**Replies:** 8\
**Last updated:** [7 July 2020 06:52 UTC](https://discourse.nodered.org/t/function-to-add-l-and-h-registers-in-modbus/29221 "2020-07-07T06:52:40Z")

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Hi all. I have seen various you tube videos on how it works but I cant figure out how to do it. I have my EP Solar controller and I want to get the values from Charging equipment input power L (3102) and Charging equipm…

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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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## [Ui From Node - Insert Elements from Payload](https://discourse.nodered.org/t/ui-from-node-insert-elements-from-payload/29562)

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**Author:** [@Paulf007](https://discourse.nodered.org/u/Paulf007)\
**Replies:** 6\
**Last updated:** [7 July 2020 03:24 UTC](https://discourse.nodered.org/t/ui-from-node-insert-elements-from-payload/29562 "2020-07-07T03:24:51Z")

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I am working on a Master settings file that will contain all the settings that I use within my home automation. The idea is to have the csv file with all the settings that I use and access them from the global data. I al…

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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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## [Node not saving dynamic credentials to cred file](https://discourse.nodered.org/t/node-not-saving-dynamic-credentials-to-cred-file/29622)

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**Author:** [@brettyj](https://discourse.nodered.org/u/brettyj)\
**Replies:** 1\
**Last updated:** [6 July 2020 21:26 UTC](https://discourse.nodered.org/t/node-not-saving-dynamic-credentials-to-cred-file/29622 "2020-07-06T21:26:25Z")

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Hey, I've been having issues with a Node that I've forked to try and improve and fix. The problem I'm getting is that it uses OAuth to login to a service, and while that mostly works fine, if I restart Node-Red I have t…

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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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## [Coral TPU on Windows 10](https://discourse.nodered.org/t/coral-tpu-on-windows-10/29573)

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**Author:** [@wb666greene](https://discourse.nodered.org/u/wb666greene)\
**Replies:** 0\
**Last updated:** [5 July 2020 22:06 UTC](https://discourse.nodered.org/t/coral-tpu-on-windows-10/29573 "2020-07-05T22:06:43Z")

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The original thread is closed Google recently added support for the Coral TPU AI accelerator to Windows 10. A friend gave me a Windows 10 "mini pc" and asked if I could get my security system add-on running on it. I …

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