# Latest

**URL:** https://discourse.nodered.org/latest.md?page=823

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

**Page:** 824

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## [Nodered + Home Assistant activate scene with specific application](https://discourse.nodered.org/t/nodered-home-assistant-activate-scene-with-specific-application/44647)

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**Author:** [@cranx](https://discourse.nodered.org/u/cranx)\
**Replies:** 9\
**Last updated:** [4 May 2021 20:52 UTC](https://discourse.nodered.org/t/nodered-home-assistant-activate-scene-with-specific-application/44647 "2021-05-04T20:52:33Z")

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Hi all! I'm trying to get my lights in the living room to dim when watching movies/series. I've a scene made in Home Assistant to dim the proper lights. So I'm watching on a Nvidia Shield and it is connected to my HA s…

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## [Docker, build your custom image, entry point in error](https://discourse.nodered.org/t/docker-build-your-custom-image-entry-point-in-error/45057)

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**Author:** [@Jean-Luc](https://discourse.nodered.org/u/Jean-Luc)\
**Replies:** 9\
**Last updated:** [4 May 2021 19:55 UTC](https://discourse.nodered.org/t/docker-build-your-custom-image-entry-point-in-error/45057 "2021-05-04T19:55:40Z")

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Hello, I try to create a custom docker image. I followed the documentation well, but I can't launch the container. It doesn't find the entry point (see log below) I have according the doc. modified the package.json fil…

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## [Tip of the day: Host IP inside Docker container](https://discourse.nodered.org/t/tip-of-the-day-host-ip-inside-docker-container/45180)

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**Author:** [@rothestar](https://discourse.nodered.org/u/rothestar)\
**Replies:** 0\
**Last updated:** [4 May 2021 19:55 UTC](https://discourse.nodered.org/t/tip-of-the-day-host-ip-inside-docker-container/45180 "2021-05-04T19:55:31Z")

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Hi there After googling for hours, I made my own solution for the "get the Host IP adress" I am using this Stack for my IOT setup: IOTstack I want to post the Host ip to a grafana desktop. This is how I did it: firs…

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## [Suggestions - where to discuss?](https://discourse.nodered.org/t/suggestions-where-to-discuss/45177)

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**Author:** [@hazymat](https://discourse.nodered.org/u/hazymat)\
**Replies:** 2\
**Last updated:** [4 May 2021 19:07 UTC](https://discourse.nodered.org/t/suggestions-where-to-discuss/45177 "2021-05-04T19:07:42Z")

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I saw this topic started May 2018 but wondered if that was the correct place to discuss new suggestions for Node-RED. If not, where can we discuss suggestions? Thanks!

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## [Commercial use of node red questions](https://discourse.nodered.org/t/commercial-use-of-node-red-questions/45096)

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**Author:** [@corso66](https://discourse.nodered.org/u/corso66)\
**Replies:** 8\
**Last updated:** [4 May 2021 16:56 UTC](https://discourse.nodered.org/t/commercial-use-of-node-red-questions/45096 "2021-05-04T16:56:37Z")

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Hi everybody, I have just some questions about nodered and commercial use, i explain me ; At the begin, i'm a electronician, and i'm actualy in a professionnal conversion. i created a regulation to manage a inovant sys…

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## [How to append unique messages](https://discourse.nodered.org/t/how-to-append-unique-messages/45146)

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**Author:** [@SiPhyLLC](https://discourse.nodered.org/u/SiPhyLLC)\
**Replies:** 4\
**Last updated:** [4 May 2021 15:20 UTC](https://discourse.nodered.org/t/how-to-append-unique-messages/45146 "2021-05-04T15:20:03Z")

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I have several MQTT 'devices' sending messages such as "A A B C C D" and "A B D E F F". I would like to append all the unique data over an extended period of time. I know I can use the "split" node to create a series …

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## [Mh-z 19 & sds011](https://discourse.nodered.org/t/mh-z-19-sds011/45119)

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**Author:** [@Beginner96](https://discourse.nodered.org/u/Beginner96)\
**Replies:** 6\
**Last updated:** [4 May 2021 15:00 UTC](https://discourse.nodered.org/t/mh-z-19-sds011/45119 "2021-05-04T15:00:41Z")

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Hello ! I am completely new here and also new to node red & RaspberryPi in general, so I need some help of you. I want to connect the two sensors MH-Z19 & SDS011 to my RaspberryPi4B to show their data on the node red d…

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## [File upload to Azure](https://discourse.nodered.org/t/file-upload-to-azure/45109)

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**Author:** [@Jochen1980](https://discourse.nodered.org/u/Jochen1980)\
**Replies:** 5\
**Last updated:** [4 May 2021 14:51 UTC](https://discourse.nodered.org/t/file-upload-to-azure/45109 "2021-05-04T14:51:19Z")

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Hello, I'm trying to use this flow to upload a file to node-red server (Azure) but I always get the answer "Error: only files are allowed". I checked the node-red folder for the uploaded file - nothing. I created an up…

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## [Error Error: BacnetError Class: SERVICES (5) Code: REJECT\_UNRECOGNIZED\_SERVICE (67)](https://discourse.nodered.org/t/error-error-bacneterror-class-services-5-code-reject-unrecognized-service-67/45168)

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**Author:** [@obnd](https://discourse.nodered.org/u/obnd)\
**Replies:** 0\
**Last updated:** [4 May 2021 13:36 UTC](https://discourse.nodered.org/t/error-error-bacneterror-class-services-5-code-reject-unrecognized-service-67/45168 "2021-05-04T13:36:38Z")

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I am using bacnet to read and write about panel lighting. I managed to control the panel for a while, but now I get this Error: BacnetError Class: SERVICES (5) Code: REJECT\_UNRECOGNIZED\_SERVICE (67) Does anyone know wha…

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## [Export MQTT message to InfluxDB](https://discourse.nodered.org/t/export-mqtt-message-to-influxdb/45105)

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**Author:** [@TimTist](https://discourse.nodered.org/u/TimTist)\
**Replies:** 6\
**Last updated:** [4 May 2021 13:35 UTC](https://discourse.nodered.org/t/export-mqtt-message-to-influxdb/45105 "2021-05-04T13:35:39Z")

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Via a sensor connected to TTN LoRa I receive an MQTT message with the measured temperature and humidity: payload.uplink\_message.decoded\_payload.TempC\_SHT payload.uplink\_message.decoded\_payload.Hum\_SHT My intention is …

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## [Custom node with values from global](https://discourse.nodered.org/t/custom-node-with-values-from-global/44977)

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**Author:** [@jake123](https://discourse.nodered.org/u/jake123)\
**Replies:** 21\
**Last updated:** [4 May 2021 13:25 UTC](https://discourse.nodered.org/t/custom-node-with-values-from-global/44977 "2021-05-04T13:25:13Z")

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I managed to create a node that gets data from global adn then stores the data in dropdown. The problem now is that the dropdown fills but only 1st item in it is selectable. If i select some other option and close the no…

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## [Local IP address to QR-code](https://discourse.nodered.org/t/local-ip-address-to-qr-code/45166)

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**Author:** [@Jochen1980](https://discourse.nodered.org/u/Jochen1980)\
**Replies:** 0\
**Last updated:** [4 May 2021 13:00 UTC](https://discourse.nodered.org/t/local-ip-address-to-qr-code/45166 "2021-05-04T13:00:06Z")

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Hi, tried this flow on an Azure VM without luck. The image isn't displayed/generated. As I also have issues with uploading a single simple file to that system my question would be: Is there any "user rights" problem wi…

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## [Bluetooth testing on Raspberry pi](https://discourse.nodered.org/t/bluetooth-testing-on-raspberry-pi/44494)

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**Author:** [@DSongra11\_forum.com](https://discourse.nodered.org/u/DSongra11_forum.com)\
**Replies:** 31\
**Last updated:** [4 May 2021 12:53 UTC](https://discourse.nodered.org/t/bluetooth-testing-on-raspberry-pi/44494 "2021-05-04T12:53:48Z")

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Hi, I am testing raspberry pi, I have installed node-red V 1.3.3. For Bluetooth testing, I am getting the below error message in debug window. \[ /\_\_bledev/6b582bf82aab err:Error: Missing Peripheral Device =\>Error: Mi…

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## [I want to run node-red on cloud kubernetes as service](https://discourse.nodered.org/t/i-want-to-run-node-red-on-cloud-kubernetes-as-service/45165)

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**Author:** [@georgethomas08](https://discourse.nodered.org/u/georgethomas08)\
**Replies:** 0\
**Last updated:** [4 May 2021 12:41 UTC](https://discourse.nodered.org/t/i-want-to-run-node-red-on-cloud-kubernetes-as-service/45165 "2021-05-04T12:41:59Z")

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I have seen docker images for node-red, is there any yaml file with ingress controller to deploy node-red in the Kubernetes

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## [Timestamp for email](https://discourse.nodered.org/t/timestamp-for-email/42523)

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**Author:** [@Madhumati](https://discourse.nodered.org/u/Madhumati)\
**Replies:** 6\
**Last updated:** [4 May 2021 06:12 UTC](https://discourse.nodered.org/t/timestamp-for-email/42523 "2021-05-04T06:12:31Z")

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Hello, we are sending alarms through node-RED. But the time stamp is not proper. See below red marked in screenshots ---this was tested yesterday As well as see when I get an email , see red marked timings at top &…

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## [Email - Wrong Server (internal mail server)](https://discourse.nodered.org/t/email-wrong-server-internal-mail-server/45147)

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**Author:** [@spyder0552](https://discourse.nodered.org/u/spyder0552)\
**Replies:** 4\
**Last updated:** [4 May 2021 12:24 UTC](https://discourse.nodered.org/t/email-wrong-server-internal-mail-server/45147 "2021-05-04T12:24:52Z")

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Bit of a challenge here. It appears that NodeRed is resolving my server address to the Public IP. However, I am trying to reach the internally hosted mail server. It is on the same network as my node-red. But, for some …

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## [Flow Disappear; did not open it for at least 2 months](https://discourse.nodered.org/t/flow-disappear-did-not-open-it-for-at-least-2-months/45164)

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**Author:** [@HereACE](https://discourse.nodered.org/u/HereACE)\
**Replies:** 2\
**Last updated:** [4 May 2021 12:26 UTC](https://discourse.nodered.org/t/flow-disappear-did-not-open-it-for-at-least-2-months/45164 "2021-05-04T12:26:46Z")

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Helppppp!!!!!! I have been working on the flow for months for my sch project and now its no where to be found.I'm like 80% done. Didn't open it for at least 2 months. This happen before perviously as well and i redo it. …

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## [How can i get the payload from a mariaDB to a switch node](https://discourse.nodered.org/t/how-can-i-get-the-payload-from-a-mariadb-to-a-switch-node/45160)

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**Author:** [@tpbillund](https://discourse.nodered.org/u/tpbillund)\
**Replies:** 6\
**Last updated:** [4 May 2021 11:54 UTC](https://discourse.nodered.org/t/how-can-i-get-the-payload-from-a-mariadb-to-a-switch-node/45160 "2021-05-04T11:54:40Z")

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Hi I am getting a status from a MariaDB, and when I add a debug node it give me the status. If I add a Switch node between the "Alarm" and "Debug" with the data: == armed == disarmed Then I don't get any status to…

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## [Missing Output option in Function Node](https://discourse.nodered.org/t/missing-output-option-in-function-node/45156)

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**Author:** [@timochse](https://discourse.nodered.org/u/timochse)\
**Replies:** 2\
**Last updated:** [4 May 2021 10:41 UTC](https://discourse.nodered.org/t/missing-output-option-in-function-node/45156 "2021-05-04T10:41:43Z")

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Hi I have installed Node-Red V1.3.4 on win 10. When adding the function node to the flow I have found that there is not Output option in the dialog for the node. So you can't add outputs. Can anyone help? Cheers, …

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## [Telegram send, semantic issue?](https://discourse.nodered.org/t/telegram-send-semantic-issue/45142)

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**Author:** [@Chura](https://discourse.nodered.org/u/Chura)\
**Replies:** 4\
**Last updated:** [4 May 2021 09:43 UTC](https://discourse.nodered.org/t/telegram-send-semantic-issue/45142 "2021-05-04T09:43:35Z")

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Hi, I've been using this to send telegram images from buffer for years in the last few days, I can't send this specific msgs, getting this error Caught exception in sender node: Error: ETELEGRAM: 400 Bad Request:…

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## [Docker NR & ttyUSB0 Permission denied](https://discourse.nodered.org/t/docker-nr-ttyusb0-permission-denied/44803)

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**Author:** [@Jean-Luc](https://discourse.nodered.org/u/Jean-Luc)\
**Replies:** 24\
**Last updated:** [4 May 2021 09:42 UTC](https://discourse.nodered.org/t/docker-nr-ttyusb0-permission-denied/44803 "2021-05-04T09:42:34Z")

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Hello, since a few days I test NR Docker. I use Portainer.io to manage my containers. It's quite simple. Now I want to be able to use the serialport node to read what is on the USB port (RFlink card) of my OrangePi. S…

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## [Add dynamicaly elements](https://discourse.nodered.org/t/add-dynamicaly-elements/45137)

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**Author:** [@chuckyro](https://discourse.nodered.org/u/chuckyro)\
**Replies:** 1\
**Last updated:** [4 May 2021 05:16 UTC](https://discourse.nodered.org/t/add-dynamicaly-elements/45137 "2021-05-04T05:16:12Z")

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Hi, Is it possible to add dynamically (in a dashboard tab) different components at runtime, based on different criteria/values? For eg. I have 10 IoTs sensors defined (in a list or db table) ...so I want 10 charts to b…

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## [Different pin out selection in flow based on pi model?](https://discourse.nodered.org/t/different-pin-out-selection-in-flow-based-on-pi-model/45125)

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**Author:** [@Nodi.Rubrum](https://discourse.nodered.org/u/Nodi.Rubrum)\
**Replies:** 2\
**Last updated:** [4 May 2021 04:42 UTC](https://discourse.nodered.org/t/different-pin-out-selection-in-flow-based-on-pi-model/45125 "2021-05-04T04:42:01Z")

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Different pin out selection in flow based on pi model? I have two flows, one defined for 40 GPIO pin Pi devices and another flow for 26 GPIO pin Pi devices. I want to merge the flows to one for all Pi devices. But I d…

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## [Timestamp not showing up in template node when using moustache syntax](https://discourse.nodered.org/t/timestamp-not-showing-up-in-template-node-when-using-moustache-syntax/45149)

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**Author:** [@anakaine](https://discourse.nodered.org/u/anakaine)\
**Replies:** 1\
**Last updated:** [4 May 2021 01:13 UTC](https://discourse.nodered.org/t/timestamp-not-showing-up-in-template-node-when-using-moustache-syntax/45149 "2021-05-04T01:13:06Z")

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I'm using simpletime to try to inject a datestamp into a flow. I use a change node to set msg.timestamp, and this seems to appear in the debug node as a string. Great. However, when I use a template node in an attempt t…

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## [Need some logic help please guys](https://discourse.nodered.org/t/need-some-logic-help-please-guys/44713)

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**Author:** [@craigcurtin](https://discourse.nodered.org/u/craigcurtin)\
**Replies:** 13\
**Last updated:** [3 May 2021 23:37 UTC](https://discourse.nodered.org/t/need-some-logic-help-please-guys/44713 "2021-05-03T23:37:52Z")

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Guys, Just transitioning our home hesting system from a Gas Boiler to an Electric Heat Pump and using this as an opportunity to redo all my code into Node Red and Tasmota and away from Arduinos that i used to use for Te…

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## [Show specific group accordingly the login](https://discourse.nodered.org/t/show-specific-group-accordingly-the-login/45143)

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**Author:** [@joseaugusto0](https://discourse.nodered.org/u/joseaugusto0)\
**Replies:** 0\
**Last updated:** [3 May 2021 20:03 UTC](https://discourse.nodered.org/t/show-specific-group-accordingly-the-login/45143 "2021-05-03T20:03:09Z")

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Can I disable some group accordingly the login? A person X will login, and will be showed to him a specific group (without the side-bar). And a person Y will login too, and will be showed to him another specific group. I…

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## [Bacnet code inside function not working using bacstack library](https://discourse.nodered.org/t/bacnet-code-inside-function-not-working-using-bacstack-library/14850)

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**Author:** [@VIKRAMAS](https://discourse.nodered.org/u/VIKRAMAS)\
**Replies:** 10\
**Last updated:** [3 May 2021 18:16 UTC](https://discourse.nodered.org/t/bacnet-code-inside-function-not-working-using-bacstack-library/14850 "2021-05-03T18:16:38Z")

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AS bacnet node was not working for me so, I used bacstack library. I am trying to read the data from a bacnet simulator. But I am getting below error err: Error: ERR\_TIMEOUT at Timeout.\_onTimeout (C:\\Users\\EpsilonP…

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## [Add some input to system command](https://discourse.nodered.org/t/add-some-input-to-system-command/45103)

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**Author:** [@torrent](https://discourse.nodered.org/u/torrent)\
**Replies:** 2\
**Last updated:** [3 May 2021 17:15 UTC](https://discourse.nodered.org/t/add-some-input-to-system-command/45103 "2021-05-03T17:15:04Z")

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I am trying to generate client key using openssl under NodeRED. But for client key, I need input 2 times password. Something looks like this So after entering the encryption command, 2 times password muss be input. My…

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## [Working with LPR data in MySQL database](https://discourse.nodered.org/t/working-with-lpr-data-in-mysql-database/45100)

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**Author:** [@niehans](https://discourse.nodered.org/u/niehans)\
**Replies:** 5\
**Last updated:** [3 May 2021 17:08 UTC](https://discourse.nodered.org/t/working-with-lpr-data-in-mysql-database/45100 "2021-05-03T17:08:36Z")

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Hi there. I'm new to this world of Node Red and coding in general so bare with me if ask silly questions. What I have done so far: \[{"id":"d8b6cc0d.873be8","type":"tab","label":"Plate","disabled":false,"info":""},{…

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## [Openweathermap - how to compare the values inside an array](https://discourse.nodered.org/t/openweathermap-how-to-compare-the-values-inside-an-array/45114)

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**Author:** [@sfedo](https://discourse.nodered.org/u/sfedo)\
**Replies:** 4\
**Last updated:** [3 May 2021 16:47 UTC](https://discourse.nodered.org/t/openweathermap-how-to-compare-the-values-inside-an-array/45114 "2021-05-03T16:47:05Z")

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Hello guys, I'm using openweathermap node and get 5 day data. Now I'm only interested in clouds object inside the array. Is there a way to extract the lowest value? in the picture you can see the first value of 40 …

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