# Latest

**URL:** https://discourse.nodered.org/latest.md?page=1111

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

**Page:** 1112

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## [Toggle switch with MQTT](https://discourse.nodered.org/t/toggle-switch-with-mqtt/24330)

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**Author:** [@billard\_fm](https://discourse.nodered.org/u/billard_fm)\
**Replies:** 2\
**Last updated:** [21 April 2020 07:06 UTC](https://discourse.nodered.org/t/toggle-switch-with-mqtt/24330 "2020-04-21T07:06:02Z")

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hello, i am new with node-red. I use it with a MQTT bidge to a Mesh Network. I would have a switch that make this sequence: At the beginning i have a button with RON name First click on the button it send the payload…

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## [Getting errors to the server side in UI node](https://discourse.nodered.org/t/getting-errors-to-the-server-side-in-ui-node/24999)

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**Author:** [@BartButenaers](https://discourse.nodered.org/u/BartButenaers)\
**Replies:** 5\
**Last updated:** [20 April 2020 22:08 UTC](https://discourse.nodered.org/t/getting-errors-to-the-server-side-in-ui-node/24999 "2020-04-20T22:08:55Z")

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Hi folks, the 2.0 release of the SVG UI node is almost completed, but would like to have a better error logging mechanism. Currently the errors are written to the console log on the client-side (because most of the stu…

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## [Pull entity info (Temperature) into Node-Red](https://discourse.nodered.org/t/pull-entity-info-temperature-into-node-red/25195)

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**Author:** [@yeganquan](https://discourse.nodered.org/u/yeganquan)\
**Replies:** 3\
**Last updated:** [20 April 2020 20:37 UTC](https://discourse.nodered.org/t/pull-entity-info-temperature-into-node-red/25195 "2020-04-20T20:37:24Z")

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Hi am new to node red and have no programming skills whatsoever. I have a two part question I had my ESP8266 programmed with Arduino and some lines of code in the config.yaml. I was able to use the query the entity wit…

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## [Node-red multi-user workaround](https://discourse.nodered.org/t/node-red-multi-user-workaround/24881)

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**Author:** [@Lupin\_III](https://discourse.nodered.org/u/Lupin_III)\
**Replies:** 25\
**Last updated:** [20 April 2020 14:26 UTC](https://discourse.nodered.org/t/node-red-multi-user-workaround/24881 "2020-04-20T14:26:28Z")

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Hi, I know that node-red is a multi-instances software but not multi-tenant. However I need to make it used by different users with different data (identical flows). So I was thinking to a workaround in order not to loo…

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## [Applet auto-refresh in Dashboard](https://discourse.nodered.org/t/applet-auto-refresh-in-dashboard/25151)

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**Author:** [@StrongTown](https://discourse.nodered.org/u/StrongTown)\
**Replies:** 8\
**Last updated:** [20 April 2020 20:06 UTC](https://discourse.nodered.org/t/applet-auto-refresh-in-dashboard/25151 "2020-04-20T20:06:11Z")

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I've added a weather applet from Weather Widgets in my Dashboard. Whenever a browser brings up the Dashboard I have a blank spot where the weather applet should be shown. If I refresh the page the applet appears. The c…

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## [Share JSONata functions between nodes](https://discourse.nodered.org/t/share-jsonata-functions-between-nodes/25198)

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**Author:** [@JbIPS](https://discourse.nodered.org/u/JbIPS)\
**Replies:** 3\
**Last updated:** [20 April 2020 18:30 UTC](https://discourse.nodered.org/t/share-jsonata-functions-between-nodes/25198 "2020-04-20T18:30:25Z")

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Hi, In my flow, I used some kind of hashing function in a Change node JSONata. This operation happens multiple times, in multiple flows and each time I have to copy/paste my node and change the paths. I fear the day I'…

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## [Set new value on nested JSON array/objects - JSONata](https://discourse.nodered.org/t/set-new-value-on-nested-json-array-objects-jsonata/25172)

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**Author:** [@bakman2](https://discourse.nodered.org/u/bakman2)\
**Replies:** 2\
**Last updated:** [20 April 2020 17:28 UTC](https://discourse.nodered.org/t/set-new-value-on-nested-json-array-objects-jsonata/25172 "2020-04-20T17:28:57Z")

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I have the following object with nested objects in array's. { "network": { "name": "Internet", "properties": { "reachable": true, "ip": "google.com" }, "children": \[ { "name":…

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## [Is there any way i can change gauge range with user input from dashboard?](https://discourse.nodered.org/t/is-there-any-way-i-can-change-gauge-range-with-user-input-from-dashboard/25201)

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**Author:** [@Beefy\_carrot](https://discourse.nodered.org/u/Beefy_carrot)\
**Replies:** 2\
**Last updated:** [20 April 2020 17:23 UTC](https://discourse.nodered.org/t/is-there-any-way-i-can-change-gauge-range-with-user-input-from-dashboard/25201 "2020-04-20T17:23:33Z")

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I tested adding msg.payload values in the gauge ( {{value}} ) this seems to work on the label, units and value format. but not on the range perimeter. is their any way ?

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## [Node-RED TensorFlow Object Detection with Telegram on macOS](https://discourse.nodered.org/t/node-red-tensorflow-object-detection-with-telegram-on-macos/22699)

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**Author:** [@unixneo](https://discourse.nodered.org/u/unixneo)\
**Replies:** 27\
**Last updated:** [20 April 2020 17:20 UTC](https://discourse.nodered.org/t/node-red-tensorflow-object-detection-with-telegram-on-macos/22699 "2020-04-20T17:20:24Z")

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The GitHub README file cautions that their TF Node-RED Object Detection demo only works with the Raspberry PI; but I got it working just fine on macOS today. This is a fun little project, for sure; which I retooled for …

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## [Presence detection by time](https://discourse.nodered.org/t/presence-detection-by-time/25044)

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**Author:** [@Marty1982](https://discourse.nodered.org/u/Marty1982)\
**Replies:** 7\
**Last updated:** [20 April 2020 16:56 UTC](https://discourse.nodered.org/t/presence-detection-by-time/25044 "2020-04-20T16:56:55Z")

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Hi all! I have node red and homeassistant integrated and i’ve recently created a node with location check and works fine. Now i want to check how long im at home according to homeassistant location. There is a state t…

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## [Unable to Create custom docker image of custom node-red core code](https://discourse.nodered.org/t/unable-to-create-custom-docker-image-of-custom-node-red-core-code/25005)

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**Author:** [@shrey.garg](https://discourse.nodered.org/u/shrey.garg)\
**Replies:** 5\
**Last updated:** [20 April 2020 16:14 UTC](https://discourse.nodered.org/t/unable-to-create-custom-docker-image-of-custom-node-red-core-code/25005 "2020-04-20T16:14:32Z")

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Hi, I forked node-red/node-red repository and made some custom changes to its UI and functionality. Now I want to create a docker image of this edited node-red source code. I found this link regarding the customer docke…

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## [Ultrasonic using NodeMCU and Node-Red](https://discourse.nodered.org/t/ultrasonic-using-nodemcu-and-node-red/25169)

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**Author:** [@budiman098](https://discourse.nodered.org/u/budiman098)\
**Replies:** 2\
**Last updated:** [20 April 2020 14:38 UTC](https://discourse.nodered.org/t/ultrasonic-using-nodemcu-and-node-red/25169 "2020-04-20T14:38:13Z")

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hy guys, can you help me to try your project about ultrasonic sensor use NodeMCU and Node-red? i want to monitoring ultrasonic sensor with Node-red use NodeMCU (MQTT) but i have no get the tutorial. i have you can help…

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## [Node-RED 1.0.5: Functions with multiple outputs](https://discourse.nodered.org/t/node-red-1-0-5-functions-with-multiple-outputs/25196)

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**Author:** [@rei\_vilo](https://discourse.nodered.org/u/rei_vilo)\
**Replies:** 3\
**Last updated:** [20 April 2020 14:37 UTC](https://discourse.nodered.org/t/node-red-1-0-5-functions-with-multiple-outputs/25196 "2020-04-20T14:37:40Z")

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I'm trying to use the Multiple Outputs example from the Writing Functions user guide. With the suggested example, the function keeps one single output. var newMsg = { payload: msg.payload.toString().length }; return \[m…

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## [Read data form two tables at the same time](https://discourse.nodered.org/t/read-data-form-two-tables-at-the-same-time/25186)

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**Author:** [@Ahd](https://discourse.nodered.org/u/Ahd)\
**Replies:** 6\
**Last updated:** [20 April 2020 14:02 UTC](https://discourse.nodered.org/t/read-data-form-two-tables-at-the-same-time/25186 "2020-04-20T14:02:50Z")

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Hi ALL, I am wondering if it is possible to make an " inner join" between two tables in the function node. For example, I have two tables and I want to display the data from both tables at a certain condition( if id=id)…

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## [Dashboard default tab](https://discourse.nodered.org/t/dashboard-default-tab/25160)

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**Author:** [@lopikamper](https://discourse.nodered.org/u/lopikamper)\
**Replies:** 9\
**Last updated:** [20 April 2020 09:22 UTC](https://discourse.nodered.org/t/dashboard-default-tab/25160 "2020-04-20T09:22:24Z")

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Hi, is there a way to set up default Dashboard tab ? I've got a Menu tab in my application but I couldn't find a way to open dashboard for user always on this tab. I've tried to implement it by using inject node on the …

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## [Filtering array Smappee](https://discourse.nodered.org/t/filtering-array-smappee/25175)

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**Author:** [@WillemEco](https://discourse.nodered.org/u/WillemEco)\
**Replies:** 1\
**Last updated:** [20 April 2020 08:35 UTC](https://discourse.nodered.org/t/filtering-array-smappee/25175 "2020-04-20T08:35:13Z")

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How can I filter an array with a Smappee payload? in the picture below you will find the payload, I try to visualize the blue part on the Node-RED dashboard. Somebody can help me? Best regards, Willem

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## [Pushing data to Azure](https://discourse.nodered.org/t/pushing-data-to-azure/25173)

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**Author:** [@xeon](https://discourse.nodered.org/u/xeon)\
**Replies:** 1\
**Last updated:** [20 April 2020 08:08 UTC](https://discourse.nodered.org/t/pushing-data-to-azure/25173 "2020-04-20T08:08:14Z")

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Hello everyone. I'm trying to upload dummy data(ideally a stream of live data) to the cloud, Azure. However, there is an error as shown. I'm following exact instruction as mentioned here (https://flows.nodered.org/node/@…

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## [\[ANNOUNCE\] openAPI-RED - yet another swagger-client node](https://discourse.nodered.org/t/announce-openapi-red-yet-another-swagger-client-node/23545)

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**Author:** [@2WeltenChris](https://discourse.nodered.org/u/2WeltenChris)\
**Replies:** 40\
**Last updated:** [20 April 2020 08:05 UTC](https://discourse.nodered.org/t/announce-openapi-red-yet-another-swagger-client-node/23545 "2020-04-20T08:05:45Z")

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Hello again, having just announced kdbx-RED, here comes the next project fresh outr of our oven: openAPI-RED. Why another kind of swagger-client node? Well the ones that existed just didn't work for us (seems newer API…

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## [Website Parsing/ Scraping with HTTP request](https://discourse.nodered.org/t/website-parsing-scraping-with-http-request/25117)

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**Author:** [@MarkAmbrose](https://discourse.nodered.org/u/MarkAmbrose)\
**Replies:** 9\
**Last updated:** [20 April 2020 07:30 UTC](https://discourse.nodered.org/t/website-parsing-scraping-with-http-request/25117 "2020-04-20T07:30:07Z")

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Hi All , hope everyone is safe first post here , hopefully I can follow the forum procedures . I started using Node Red during lockdown and absolutely love it . I am trying to webscrape/Parse a website . I am battling …

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## [Test ultrasonic sensor](https://discourse.nodered.org/t/test-ultrasonic-sensor/24645)

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**Author:** [@budiman098](https://discourse.nodered.org/u/budiman098)\
**Replies:** 11\
**Last updated:** [20 April 2020 06:47 UTC](https://discourse.nodered.org/t/test-ultrasonic-sensor/24645 "2020-04-20T06:47:36Z")

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Hy all, can you help me to doing tutorial about ultrasonic sensor? Maybe you have something to try, please share. Thank you

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## [Can't get Serial Out working on a Beaglebone Black](https://discourse.nodered.org/t/cant-get-serial-out-working-on-a-beaglebone-black/24720)

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**Author:** [@brent](https://discourse.nodered.org/u/brent)\
**Replies:** 1\
**Last updated:** [20 April 2020 01:38 UTC](https://discourse.nodered.org/t/cant-get-serial-out-working-on-a-beaglebone-black/24720 "2020-04-20T01:38:30Z")

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I'm trying to use node-red-node-serialport 0.10.1 and Node-Red 1.0.4 to send "hello world" to /dev/ttyS1 every 5 seconds, but nothing is wiggling yet. I have a short "hello world" script written in Python using the Cloud…

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## [How to pass a data type to google sheet?](https://discourse.nodered.org/t/how-to-pass-a-data-type-to-google-sheet/25158)

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**Author:** [@calcioscacchi](https://discourse.nodered.org/u/calcioscacchi)\
**Replies:** 2\
**Last updated:** [19 April 2020 21:54 UTC](https://discourse.nodered.org/t/how-to-pass-a-data-type-to-google-sheet/25158 "2020-04-19T21:54:08Z")

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Hi there, i'm trying to pass a date to google sheet, and from there (using excel formulas MONTH and NUMWEEK) i want to extract the week and the month, due to create a weekly mean of the values. But, unfortunately seems…

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## [\[Announcement\] node-red-contrib-xstate-machine - Flexible state-machines for node-red](https://discourse.nodered.org/t/announcement-node-red-contrib-xstate-machine-flexible-state-machines-for-node-red/24262)

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**Author:** [@sonntam](https://discourse.nodered.org/u/sonntam)\
**Replies:** 23\
**Last updated:** [19 April 2020 21:31 UTC](https://discourse.nodered.org/t/announcement-node-red-contrib-xstate-machine-flexible-state-machines-for-node-red/24262 "2020-04-19T21:31:13Z")

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I'd like to announce a new package for node-red that I just published. Did you ever want to have flexible state-machines in node-red and be able to track their state and data visually? Then you came to the right pl…

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## [Node-red:network-observe for container](https://discourse.nodered.org/t/node-red-network-observe-for-container/25157)

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**Author:** [@ad-netafy](https://discourse.nodered.org/u/ad-netafy)\
**Replies:** 0\
**Last updated:** [19 April 2020 21:03 UTC](https://discourse.nodered.org/t/node-red-network-observe-for-container/25157 "2020-04-19T21:03:11Z")

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Im having an issue where my Dashboard World Map resets its connection every 10-15 seconds. I After some research, someone who had this same issue in an earlier thread suggested needing to run "sudo snap connect node-red…

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## [LightwaveRF Smart Dimmer control](https://discourse.nodered.org/t/lightwaverf-smart-dimmer-control/24632)

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**Author:** [@Brew](https://discourse.nodered.org/u/Brew)\
**Replies:** 7\
**Last updated:** [19 April 2020 20:42 UTC](https://discourse.nodered.org/t/lightwaverf-smart-dimmer-control/24632 "2020-04-19T20:42:56Z")

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Has anyone had any success with integrating LightwaveRF devices into Node-Red? My apologies if this has been covered elsewhere and I've just missed it, equally please forgive me if the solution is blatantly obvious and …

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## [Node-Red Sensors](https://discourse.nodered.org/t/node-red-sensors/2938)

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**Author:** [@b35b5dad43ea282b65d0](https://discourse.nodered.org/u/b35b5dad43ea282b65d0)\
**Replies:** 34\
**Last updated:** [19 April 2020 19:12 UTC](https://discourse.nodered.org/t/node-red-sensors/2938 "2020-04-19T19:12:56Z")

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Hello I have a question about reading Sensor datas with Node-Red and the Raspberry Pi. I watched some Youtube Videos, and the most of them have the Grove Pi addition to connect there Sensors. Now i want to ask if i ne…

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## [Auto deploy node-red so that changes will save every few minutes](https://discourse.nodered.org/t/auto-deploy-node-red-so-that-changes-will-save-every-few-minutes/25144)

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**Author:** [@pagkly](https://discourse.nodered.org/u/pagkly)\
**Replies:** 1\
**Last updated:** [19 April 2020 18:15 UTC](https://discourse.nodered.org/t/auto-deploy-node-red-so-that-changes-will-save-every-few-minutes/25144 "2020-04-19T18:15:29Z")

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Is there a way to auto-deploy changes every few minutes? There are times where the browser accidentally closed and I have to go back and fix my unsaved flow again.

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## [Workspace nodes not properly configured](https://discourse.nodered.org/t/workspace-nodes-not-properly-configured/25141)

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**Author:** [@shel](https://discourse.nodered.org/u/shel)\
**Replies:** 3\
**Last updated:** [19 April 2020 17:42 UTC](https://discourse.nodered.org/t/workspace-nodes-not-properly-configured/25141 "2020-04-19T17:42:06Z")

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In trying to figure out how to use CSS I downloaded and installed numerous flows. After finally coming to grips with the code I went to delete all the extraneous stuff and now when I go to save I get this I have searc…

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## [USB Sensors library ?](https://discourse.nodered.org/t/usb-sensors-library/24952)

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**Author:** [@Martin10](https://discourse.nodered.org/u/Martin10)\
**Replies:** 42\
**Last updated:** [19 April 2020 17:20 UTC](https://discourse.nodered.org/t/usb-sensors-library/24952 "2020-04-19T17:20:58Z")

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How can i connect usb sensors to node red? Is there some library?

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## [Can't connect with PostgreSQL Database (wrong username)](https://discourse.nodered.org/t/cant-connect-with-postgresql-database-wrong-username/18708)

<div class="topic-metadata">

**Author:** [@koenverschuren](https://discourse.nodered.org/u/koenverschuren)\
**Replies:** 6\
**Last updated:** [19 April 2020 16:19 UTC](https://discourse.nodered.org/t/cant-connect-with-postgresql-database-wrong-username/18708 "2020-04-19T16:19:31Z")

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hi all, I have a question. When building op a connection up between a Things network node and a PostgreSQL database (with Postgrestor) I get a error. The error states: "error: password authentication failed for user "Ve…

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