# Latest

**URL:** https://discourse.nodered.org/latest.md?page=697

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

**Page:** 698

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## [Simple control of Alexa enabled devices](https://discourse.nodered.org/t/simple-control-of-alexa-enabled-devices/53039)

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**Author:** [@cymplecy](https://discourse.nodered.org/u/cymplecy)\
**Replies:** 6\
**Last updated:** [10 November 2021 09:05 UTC](https://discourse.nodered.org/t/simple-control-of-alexa-enabled-devices/53039 "2021-11-10T09:05:48Z")

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https://simplesi.net/control-any-alexa-device-using-node-red/ I've had this idea for a while and I've finally implemented it :smiley: The basic idea is that you use text to speech and place a speaker (or headphone ea…

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## [How to make SVG images responsive on the dashboard?](https://discourse.nodered.org/t/how-to-make-svg-images-responsive-on-the-dashboard/53520)

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**Author:** [@NoviceUser](https://discourse.nodered.org/u/NoviceUser)\
**Replies:** 1\
**Last updated:** [10 November 2021 16:21 UTC](https://discourse.nodered.org/t/how-to-make-svg-images-responsive-on-the-dashboard/53520 "2021-11-10T16:21:03Z")

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Hello, I am currently using the node-red-contrib-ui-svg to make SVG images. I was wondering if it could be possible to make the images responsive so that users could be able to view them properly on their phones. \[{"id…

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## [RequestError: Must declare the scalar variable \[MSSQL-PLUS\]](https://discourse.nodered.org/t/requesterror-must-declare-the-scalar-variable-mssql-plus/53508)

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**Author:** [@idlvpfk](https://discourse.nodered.org/u/idlvpfk)\
**Replies:** 12\
**Last updated:** [10 November 2021 15:46 UTC](https://discourse.nodered.org/t/requesterror-must-declare-the-scalar-variable-mssql-plus/53508 "2021-11-10T15:46:34Z")

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Hello, In sandbox env. suddenly im facing MSSQL-PLUS node notifcation(error): "RequestError: Must declare the scalar variable "@Company"." MSSQL node: Strange thing, that is was not changed/modified. Can somebody…

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## [Ui\_table complete flow example](https://discourse.nodered.org/t/ui-table-complete-flow-example/53518)

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**Author:** [@xjust](https://discourse.nodered.org/u/xjust)\
**Replies:** 0\
**Last updated:** [10 November 2021 15:08 UTC](https://discourse.nodered.org/t/ui-table-complete-flow-example/53518 "2021-11-10T15:08:09Z")

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Hi there, I added the example 3 ui\_table flow, but i cannot wrap my head around how to generate and update the data for it. Can anybody provide a working example of a multi thermostat using ui\_table, (including data se…

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## [Join node throwing Unexpected end of JSON error](https://discourse.nodered.org/t/join-node-throwing-unexpected-end-of-json-error/53476)

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**Author:** [@rlongfield](https://discourse.nodered.org/u/rlongfield)\
**Replies:** 8\
**Last updated:** [10 November 2021 15:05 UTC](https://discourse.nodered.org/t/join-node-throwing-unexpected-end-of-json-error/53476 "2021-11-10T15:05:01Z")

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I just started working with Rhasspy and using Node-Red to handle the intents from Rhasspy. I am getting the ' Unexpected end of JSON input error' on a join node when I try to combine 2 payloads into one. I'm still lear…

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## [Inhibit node execution/deployment](https://discourse.nodered.org/t/inhibit-node-execution-deployment/53504)

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**Author:** [@FabioT](https://discourse.nodered.org/u/FabioT)\
**Replies:** 12\
**Last updated:** [10 November 2021 14:56 UTC](https://discourse.nodered.org/t/inhibit-node-execution-deployment/53504 "2021-11-10T14:56:41Z")

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Hi All, I'm a new node-red user. I'm currently working on a Win10 platform with NodeJS v14.18.1 version and Node-Red v2.1.1 version. In the current project I'm working on, I'm using contrib-s7 module to communicate wi…

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## [Local context storage not intended for large data arrays?](https://discourse.nodered.org/t/local-context-storage-not-intended-for-large-data-arrays/53377)

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**Author:** [@metter](https://discourse.nodered.org/u/metter)\
**Replies:** 31\
**Last updated:** [10 November 2021 14:42 UTC](https://discourse.nodered.org/t/local-context-storage-not-intended-for-large-data-arrays/53377 "2021-11-10T14:42:38Z")

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I am storing very large data arrays (about array\[8000\] with some 20+ objects per entry) in the global context storage. I have set context stores to local storage in settings.js. This data is updated every 5mins 24/7. Ev…

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## [\[ANNOUNCE\] node-red-contrib-zwave-js 6.2.0](https://discourse.nodered.org/t/announce-node-red-contrib-zwave-js-6-2-0/52123)

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**Author:** [@marcus-j-davies](https://discourse.nodered.org/u/marcus-j-davies)\
**Replies:** 75\
**Last updated:** [10 November 2021 14:22 UTC](https://discourse.nodered.org/t/announce-node-red-contrib-zwave-js-6-2-0/52123 "2021-11-10T14:22:47Z")

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node-red-contrib-zwave-js 6.2.0 released. New Features Added a new cmd-factory node, that allows to construct commands with little to no knowledge in the required format Added power source icon and battery level in th…

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## [Anyone else having forum issues today?](https://discourse.nodered.org/t/anyone-else-having-forum-issues-today/53484)

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**Author:** [@cymplecy](https://discourse.nodered.org/u/cymplecy)\
**Replies:** 2\
**Last updated:** [10 November 2021 14:15 UTC](https://discourse.nodered.org/t/anyone-else-having-forum-issues-today/53484 "2021-11-10T14:15:07Z")

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Just getting the spinning GIF and I have to select home from main menu and then re-select forum to get in

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## [Automated Anomaly Detection Using Sound](https://discourse.nodered.org/t/automated-anomaly-detection-using-sound/53509)

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**Author:** [@pacosta](https://discourse.nodered.org/u/pacosta)\
**Replies:** 0\
**Last updated:** [10 November 2021 14:13 UTC](https://discourse.nodered.org/t/automated-anomaly-detection-using-sound/53509 "2021-11-10T14:13:31Z")

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Co-hosted with Reality AI. As Industrial IoT and Industry 4.0 is going through its digital transformation, predictive maintenance and edge AI emerge as a key driver for better and smarter manufacturing applications. Sign…

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## [Upgrade from 1.2.9 to 2.1.3](https://discourse.nodered.org/t/upgrade-from-1-2-9-to-2-1-3/53446)

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**Author:** [@corso66](https://discourse.nodered.org/u/corso66)\
**Replies:** 14\
**Last updated:** [10 November 2021 14:09 UTC](https://discourse.nodered.org/t/upgrade-from-1-2-9-to-2-1-3/53446 "2021-11-10T14:09:30Z")

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Hi all, I'm afraid to upgrade from 1.2.9 Nodered to 2.1.3. I want to know if there is some node that become not compatible with the last version of node red ? Some things to check before upgrade ? Also, how to delete …

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## [Store secret of config-node in backend](https://discourse.nodered.org/t/store-secret-of-config-node-in-backend/53490)

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**Author:** [@Dunken](https://discourse.nodered.org/u/Dunken)\
**Replies:** 1\
**Last updated:** [10 November 2021 13:59 UTC](https://discourse.nodered.org/t/store-secret-of-config-node-in-backend/53490 "2021-11-10T13:59:19Z")

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I have a similar use case as written in the Node-RED docs: For example, for a node to support an OAuth workflow, it must retain server-assigned tokens that the user never sees. The Twitter node provides a good example …

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## [Condition for differentiating testing with a helper node](https://discourse.nodered.org/t/condition-for-differentiating-testing-with-a-helper-node/53366)

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**Author:** [@midhun](https://discourse.nodered.org/u/midhun)\
**Replies:** 3\
**Last updated:** [10 November 2021 13:06 UTC](https://discourse.nodered.org/t/condition-for-differentiating-testing-with-a-helper-node/53366 "2021-11-10T13:06:51Z")

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How can we differentiate the normal usage and testing, at runtime based on some condition? Something similar to : if (process.env.NODE\_ENV === 'test') { So that we can prevent some initialization which may cause error…

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## [Install nodes behind firewalls](https://discourse.nodered.org/t/install-nodes-behind-firewalls/53480)

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**Author:** [@humphrysr](https://discourse.nodered.org/u/humphrysr)\
**Replies:** 2\
**Last updated:** [10 November 2021 11:21 UTC](https://discourse.nodered.org/t/install-nodes-behind-firewalls/53480 "2021-11-10T11:21:08Z")

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I have a system behind a set of firewalls that block inbound and outbound traffic; specific endpoints and ports will be opened later. Right now flows can be cut and pasted into my new environment. Is there a similar wa…

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## [Add link to node's website in palette management for installed nodes](https://discourse.nodered.org/t/add-link-to-nodes-website-in-palette-management-for-installed-nodes/53495)

<div class="topic-metadata">

**Author:** [@Mike-FUT](https://discourse.nodered.org/u/Mike-FUT)\
**Replies:** 1\
**Last updated:** [10 November 2021 11:03 UTC](https://discourse.nodered.org/t/add-link-to-nodes-website-in-palette-management-for-installed-nodes/53495 "2021-11-10T11:03:15Z")

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This one is bugging me since I started using Node RED for the first time and I wonder why I can't find a feature request for this. Maybe I'm missing something. Anyway, to reproduce what I'm asking for: Currently Go t…

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## [Worldmap problem after upgrade](https://discourse.nodered.org/t/worldmap-problem-after-upgrade/53472)

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**Author:** [@Ino](https://discourse.nodered.org/u/Ino)\
**Replies:** 3\
**Last updated:** [10 November 2021 10:02 UTC](https://discourse.nodered.org/t/worldmap-problem-after-upgrade/53472 "2021-11-10T10:02:11Z")

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After upgrading the worldmap (ver. 2.17 -\> 2.21) the properties menu is improved. I used the ship navigation in ver. 2.17 with the command : msg.payload = {"command":{"showlayer":"ship nav"}} but this is not working anym…

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## [Help needed with comparing inputs using msg.topic](https://discourse.nodered.org/t/help-needed-with-comparing-inputs-using-msg-topic/52258)

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**Author:** [@KrishnanRavichandran](https://discourse.nodered.org/u/KrishnanRavichandran)\
**Replies:** 10\
**Last updated:** [10 November 2021 09:50 UTC](https://discourse.nodered.org/t/help-needed-with-comparing-inputs-using-msg-topic/52258 "2021-11-10T09:50:30Z")

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I have a system where there are 8 inlet pressure measurements from 8 different channels. In my system, I am trying to maintain the pressure in a range using hysteresis. Here, I want the compressor to switch on even if o…

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## [Visual editor doesn't look right when looking at an array](https://discourse.nodered.org/t/visual-editor-doesnt-look-right-when-looking-at-an-array/53485)

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**Author:** [@cymplecy](https://discourse.nodered.org/u/cymplecy)\
**Replies:** 1\
**Last updated:** [10 November 2021 09:06 UTC](https://discourse.nodered.org/t/visual-editor-doesnt-look-right-when-looking-at-an-array/53485 "2021-11-10T09:06:23Z")

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## [OPCUA Client node statuts shows connecting](https://discourse.nodered.org/t/opcua-client-node-statuts-shows-connecting/53488)

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**Author:** [@RAW](https://discourse.nodered.org/u/RAW)\
**Replies:** 0\
**Last updated:** [10 November 2021 08:47 UTC](https://discourse.nodered.org/t/opcua-client-node-statuts-shows-connecting/53488 "2021-11-10T08:47:06Z")

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Hello Experts, I am facing similar issue mentioned in below topic, anyone has an idea or found solution for this problem? OPCUA Client node always on statuts “Connecting” Any help appreciated. Thanks in advance

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## [Posting messages into a Slack channel from Node-RED](https://discourse.nodered.org/t/posting-messages-into-a-slack-channel-from-node-red/53416)

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**Author:** [@Bryce](https://discourse.nodered.org/u/Bryce)\
**Replies:** 5\
**Last updated:** [10 November 2021 08:17 UTC](https://discourse.nodered.org/t/posting-messages-into-a-slack-channel-from-node-red/53416 "2021-11-10T08:17:14Z")

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Hi there, This is a safety feature for a science lab, I have a flow set up that monitors water flow from a tap (for water cooling chemistry experiments), it is read as a frequency. The whole purpose of it is if the wat…

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## [Fetching the state of a switch?](https://discourse.nodered.org/t/fetching-the-state-of-a-switch/53240)

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**Author:** [@Matt.L](https://discourse.nodered.org/u/Matt.L)\
**Replies:** 11\
**Last updated:** [10 November 2021 04:14 UTC](https://discourse.nodered.org/t/fetching-the-state-of-a-switch/53240 "2021-11-10T04:14:11Z")

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I have a function node that uses the state of a switch to control it's behavior. It stores the state of the switch in its context. When I make certain changes, the node context gets lost and it doesn't match the state o…

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## [Loop structure in arrays \[node red\]](https://discourse.nodered.org/t/loop-structure-in-arrays-node-red/53351)

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**Author:** [@wjr1506](https://discourse.nodered.org/u/wjr1506)\
**Replies:** 6\
**Last updated:** [10 November 2021 00:54 UTC](https://discourse.nodered.org/t/loop-structure-in-arrays-node-red/53351 "2021-11-10T00:54:40Z")

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Hey guys! I'm starting to venture into node red and javascript. I have a question, I made a stream that injects a json with arrays and a function that reads them, however, how can I read an array inside another? I hav…

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## [How to save waypoints in node-red-worldmap upon refresh or redirect?](https://discourse.nodered.org/t/how-to-save-waypoints-in-node-red-worldmap-upon-refresh-or-redirect/53143)

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**Author:** [@Chapanata](https://discourse.nodered.org/u/Chapanata)\
**Replies:** 15\
**Last updated:** [9 November 2021 22:28 UTC](https://discourse.nodered.org/t/how-to-save-waypoints-in-node-red-worldmap-upon-refresh-or-redirect/53143 "2021-11-09T22:28:51Z")

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Hello I have this project that requires users to add waypoints onto a world map dashboard which will send coordinates to a small vehicle powered by a Jetson Nano which would then navigate to those coordinates. It will al…

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## [Clarification on context stores please](https://discourse.nodered.org/t/clarification-on-context-stores-please/53467)

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**Author:** [@HarryPottar](https://discourse.nodered.org/u/HarryPottar)\
**Replies:** 4\
**Last updated:** [9 November 2021 21:25 UTC](https://discourse.nodered.org/t/clarification-on-context-stores-please/53467 "2021-11-09T21:25:42Z")

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Hi. Using flow context stores, are these unique for each process. For example: The flow is triggered and flow uses flow context store to keep say count of something, while the flow is running. The flow gets triggered a…

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## [How to write 100 words via node-red-contrib-cip-to-ethernet-ip](https://discourse.nodered.org/t/how-to-write-100-words-via-node-red-contrib-cip-to-ethernet-ip/53403)

<div class="topic-metadata">

**Author:** [@JbmDk](https://discourse.nodered.org/u/JbmDk)\
**Replies:** 3\
**Last updated:** [9 November 2021 21:24 UTC](https://discourse.nodered.org/t/how-to-write-100-words-via-node-red-contrib-cip-to-ethernet-ip/53403 "2021-11-09T21:24:57Z")

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Hi I have to send 100 words from a Modbus/Tcp device to a ControlLogix plc. I need a way to write data to different tag names in the AB plc via a function node. But as I see it it’s only possible if I add a write node …

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## [Installing Node-Red on VMware Tiny Core](https://discourse.nodered.org/t/installing-node-red-on-vmware-tiny-core/53466)

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**Author:** [@Salarj](https://discourse.nodered.org/u/Salarj)\
**Replies:** 1\
**Last updated:** [9 November 2021 19:37 UTC](https://discourse.nodered.org/t/installing-node-red-on-vmware-tiny-core/53466 "2021-11-09T19:37:01Z")

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Hi Dears could you provide me steps of installing node-red in Tiny Core image in VMWare. Thanks

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## [Shelly 1 temperature add on](https://discourse.nodered.org/t/shelly-1-temperature-add-on/53461)

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**Author:** [@GooSe](https://discourse.nodered.org/u/GooSe)\
**Replies:** 4\
**Last updated:** [9 November 2021 18:43 UTC](https://discourse.nodered.org/t/shelly-1-temperature-add-on/53461 "2021-11-09T18:43:52Z")

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Hi there, I have a shelly 1 running ( switching works with a flow ) and added the temperature add on and 3 sensors. I can see the temps using the shelly url, but can't it to run in node red .... This is my mqtt - shell…

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## [Droplist won't update since new 2.1.0 release](https://discourse.nodered.org/t/droplist-wont-update-since-new-2-1-0-release/53018)

<div class="topic-metadata">

**Author:** [@ylechasseur](https://discourse.nodered.org/u/ylechasseur)\
**Replies:** 18\
**Last updated:** [9 November 2021 17:52 UTC](https://discourse.nodered.org/t/droplist-wont-update-since-new-2-1-0-release/53018 "2021-11-09T17:52:36Z")

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Hi, I have Something bizarre since the new 2.1.0 version. On each tab, I use a control\_ui to get the active tab to avoid having any unrequired transactions (query DB). It was working nice and since the last update, I …

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## [Input data to Influxdb](https://discourse.nodered.org/t/input-data-to-influxdb/53324)

<div class="topic-metadata">

**Author:** [@picklerick](https://discourse.nodered.org/u/picklerick)\
**Replies:** 34\
**Last updated:** [9 November 2021 15:04 UTC](https://discourse.nodered.org/t/input-data-to-influxdb/53324 "2021-11-09T15:04:24Z")

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Hi All I have created a flow to pull data from a solar charge controller and send to MQTT then a String node to select the 'voltage' data from the string. I would like to input this data to Influxdb but im stuck on the …

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## [How to filter a value from a mqtt message ](https://discourse.nodered.org/t/how-to-filter-a-value-from-a-mqtt-message/53442)

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**Author:** [@bigluc](https://discourse.nodered.org/u/bigluc)\
**Replies:** 7\
**Last updated:** [9 November 2021 14:58 UTC](https://discourse.nodered.org/t/how-to-filter-a-value-from-a-mqtt-message/53442 "2021-11-09T14:58:57Z")

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Hi I have a question and I want to separate the value of temperature from this MQTT message."{"Time": "2021-11-09T10:25:12", "COUNTER":{"C1":20701}, "DS18B20":{"Id": "01193555EC2D", "Temperature":20.3}, "TempUnit": "C"}"…

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