# Latest

**URL:** https://discourse.nodered.org/latest.md?page=1068

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

**Page:** 1069

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## [Making a Dashboard for the 7 inch TFT display](https://discourse.nodered.org/t/making-a-dashboard-for-the-7-inch-tft-display/2546)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 30\
**Last updated:** [14 June 2020 13:13 UTC](https://discourse.nodered.org/t/making-a-dashboard-for-the-7-inch-tft-display/2546 "2020-06-14T13:13:54Z")

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I am stuck (?) with this problem: I have a RPI running NR. It is the central hub of things happening. Other machine access it via the network. I do most of my work on a NUC with a nice 16x9 monitor that is 1368 x 78…

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## [Activate switch based on humidity](https://discourse.nodered.org/t/activate-switch-based-on-humidity/28263)

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**Author:** [@tfmeier](https://discourse.nodered.org/u/tfmeier)\
**Replies:** 8\
**Last updated:** [14 June 2020 11:18 UTC](https://discourse.nodered.org/t/activate-switch-based-on-humidity/28263 "2020-06-14T11:18:41Z")

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I'm at the beginning of my Node-RED journey. I have successfully installed a 4 gang smart switch (Deta switch running Tasmota) - device A - that's now controllable via Google Assistant (Nora in Node-RED). One of the swi…

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## [Node Red and Webassembly](https://discourse.nodered.org/t/node-red-and-webassembly/4369)

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**Author:** [@jewendt](https://discourse.nodered.org/u/jewendt)\
**Replies:** 8\
**Last updated:** [14 June 2020 10:53 UTC](https://discourse.nodered.org/t/node-red-and-webassembly/4369 "2020-06-14T10:53:28Z")

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Has anyone done anything with Node Red and Webassemby? I am interested in trying to get Node Red working with this product but I am not sure where to start. They also have some Node.js examples but I don't know the bes…

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## [\[Solved\] How to change timestamps in objects to date/time for ui\_table](https://discourse.nodered.org/t/solved-how-to-change-timestamps-in-objects-to-date-time-for-ui-table/28289)

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**Author:** [@zenofmud](https://discourse.nodered.org/u/zenofmud)\
**Replies:** 11\
**Last updated:** [14 June 2020 10:35 UTC](https://discourse.nodered.org/t/solved-how-to-change-timestamps-in-objects-to-date-time-for-ui-table/28289 "2020-06-14T10:35:20Z")

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I'm sending an array of objects to a ui\_table and that works fine. One of the properties - in each of the objects - is a timestamp that I want to convert to a human readable format. I've been trying to use jsonata to see…

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## [How to display image in node-red?](https://discourse.nodered.org/t/how-to-display-image-in-node-red/28235)

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**Author:** [@budiman098](https://discourse.nodered.org/u/budiman098)\
**Replies:** 2\
**Last updated:** [14 June 2020 09:40 UTC](https://discourse.nodered.org/t/how-to-display-image-in-node-red/28235 "2020-06-14T09:40:38Z")

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i want to display some image consecutively from my local file in raspberry to node-red dasboard. i try contrib-ui-media but i can only display 1 picture. in the simulation example, i want display the picture consecutivel…

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## [POST to /flows with full and not be asked to merge in editor](https://discourse.nodered.org/t/post-to-flows-with-full-and-not-be-asked-to-merge-in-editor/16630)

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**Author:** [@scottpageindysoft](https://discourse.nodered.org/u/scottpageindysoft)\
**Replies:** 4\
**Last updated:** [14 June 2020 07:04 UTC](https://discourse.nodered.org/t/post-to-flows-with-full-and-not-be-asked-to-merge-in-editor/16630 "2020-06-14T07:04:04Z")

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Version: 1.0.1 - Docker Details about my project: I'm developing a VueJS frontend, using the ws Node.js WebSocket library with reconnecting-websocket, to control/monitor the active project in node-red. I'm communicat…

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## [Keypad typing in sequence](https://discourse.nodered.org/t/keypad-typing-in-sequence/28288)

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**Author:** [@ajaymccollum](https://discourse.nodered.org/u/ajaymccollum)\
**Replies:** 2\
**Last updated:** [13 June 2020 23:01 UTC](https://discourse.nodered.org/t/keypad-typing-in-sequence/28288 "2020-06-13T23:01:04Z")

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I made a little keypad out of buttons in Dashboard, and I'm simply trying to set it up so when you click 1, it sends out the "1", then 2, it would send "12", then 3, it sends out "123", and so on. The way I have set u…

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## [Speaker pi Node contrib not working](https://discourse.nodered.org/t/speaker-pi-node-contrib-not-working/28247)

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**Author:** [@MikeLemon](https://discourse.nodered.org/u/MikeLemon)\
**Replies:** 10\
**Last updated:** [13 June 2020 21:14 UTC](https://discourse.nodered.org/t/speaker-pi-node-contrib-not-working/28247 "2020-06-13T21:14:00Z")

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Hello, I've installed this speaker pi plugin: https://flows.nodered.org/node/node-red-contrib-speakerpi on my pi to play audio file from it but when making the node and putting the correct file path in and injecting tr…

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## [Serial input won't split on hex character? (re: STX / ETX)](https://discourse.nodered.org/t/serial-input-wont-split-on-hex-character-re-stx-etx/28260)

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**Author:** [@sofakng](https://discourse.nodered.org/u/sofakng)\
**Replies:** 11\
**Last updated:** [13 June 2020 19:53 UTC](https://discourse.nodered.org/t/serial-input-wont-split-on-hex-character-re-stx-etx/28260 "2020-06-13T19:53:06Z")

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I'm new to Node-RED and I'm trying to use the serial input node to have it detect response messages from the serial port in the format: STX .. ETX. If I don't assign a start character and split character it displays fi…

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## [What node can using for ReSpeaker 2 Mic Array Pi HAT v1.0](https://discourse.nodered.org/t/what-node-can-using-for-respeaker-2-mic-array-pi-hat-v1-0/27292)

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**Author:** [@lingzhongli](https://discourse.nodered.org/u/lingzhongli)\
**Replies:** 44\
**Last updated:** [13 June 2020 19:24 UTC](https://discourse.nodered.org/t/what-node-can-using-for-respeaker-2-mic-array-pi-hat-v1-0/27292 "2020-06-13T19:24:09Z")

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i have install ReSpeaker 2 Mic Array with raspberry Pi 3 (hardware)... how can i use the mic on ReSpeaker 2 Mic Array? need install anythings(software)? and need using what node for receive sound ? because in my project…

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## [Dashboard auth via node-red-contrib-users](https://discourse.nodered.org/t/dashboard-auth-via-node-red-contrib-users/28287)

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**Author:** [@lizzardguki](https://discourse.nodered.org/u/lizzardguki)\
**Replies:** 0\
**Last updated:** [13 June 2020 17:40 UTC](https://discourse.nodered.org/t/dashboard-auth-via-node-red-contrib-users/28287 "2020-06-13T17:40:17Z")

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I want to enable auth via the node-red-contrib-users to be able to auth users working on the Dashboard (ui/) does anyone have an idea how could I manage this? Without converting my dashboard to UI builder! Generally (ex…

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## ["TypeError: Cannot read property '0' of undefined"](https://discourse.nodered.org/t/typeerror-cannot-read-property-0-of-undefined/28285)

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**Author:** [@devshri](https://discourse.nodered.org/u/devshri)\
**Replies:** 1\
**Last updated:** [13 June 2020 16:55 UTC](https://discourse.nodered.org/t/typeerror-cannot-read-property-0-of-undefined/28285 "2020-06-13T16:55:03Z")

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output: object predictions: array\[1\] 0: object fields: array\[1\] 0: "prediction" values: array\[1\] 0: array\[1\] 0: 67 error: :"TypeError: Cannot read property '0' of undefined" code in function:msg.payload=msg.payl…

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## [NCD Sensors library](https://discourse.nodered.org/t/ncd-sensors-library/25996)

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**Author:** [@Martin10](https://discourse.nodered.org/u/Martin10)\
**Replies:** 28\
**Last updated:** [13 June 2020 15:45 UTC](https://discourse.nodered.org/t/ncd-sensors-library/25996 "2020-06-13T15:45:09Z")

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Hi, i found NCD Sensor library (https://flows.nodered.org/search?term=ncd). I read that these sensors use Digimesh, and because i don't have NCD i try to use my Xbee's, that also use Digimesh firmware, but i receive the …

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## [Output new line character for Inject Node string](https://discourse.nodered.org/t/output-new-line-character-for-inject-node-string/28257)

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**Author:** [@namgk](https://discourse.nodered.org/u/namgk)\
**Replies:** 8\
**Last updated:** [13 June 2020 15:34 UTC](https://discourse.nodered.org/t/output-new-line-character-for-inject-node-string/28257 "2020-06-13T15:34:18Z")

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Hi there, I have a dummy inject node that output a string. How can I make it output a new line character? Something like this, but this doesn't work. By not working I mean this in a function node returns -1: msg.p…

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## [Node-Red Install Script not working](https://discourse.nodered.org/t/node-red-install-script-not-working/28273)

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**Author:** [@dsporer](https://discourse.nodered.org/u/dsporer)\
**Replies:** 6\
**Last updated:** [13 June 2020 12:56 UTC](https://discourse.nodered.org/t/node-red-install-script-not-working/28273 "2020-06-13T12:56:51Z")

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Hello, what can I do if this official node-red install script not working my Pi3 ? curl -sL https://raw.githubusercontent.com/node-red/linux-installers/master/deb/update-nodejs-and-nodered) Error Messages are: (node:…

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## [Where is the settings file in raspberry](https://discourse.nodered.org/t/where-is-the-settings-file-in-raspberry/28178)

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**Author:** [@cigno](https://discourse.nodered.org/u/cigno)\
**Replies:** 18\
**Last updated:** [13 June 2020 12:52 UTC](https://discourse.nodered.org/t/where-is-the-settings-file-in-raspberry/28178 "2020-06-13T12:52:11Z")

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I made a flow on the pc now I have to transfer everything to the rasberry. I can't find the .node-red folder. if I give the command node-red-log it tells me that it is found under root. but I connect to the raspberry w…

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## [Node flow to convert ip to coordinates?](https://discourse.nodered.org/t/node-flow-to-convert-ip-to-coordinates/27852)

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**Author:** [@Jacq](https://discourse.nodered.org/u/Jacq)\
**Replies:** 21\
**Last updated:** [13 June 2020 11:36 UTC](https://discourse.nodered.org/t/node-flow-to-convert-ip-to-coordinates/27852 "2020-06-13T11:36:41Z")

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I cannot find a good example of IP address to coordinates using a geoip service, is this possible? Cheers, Jacq

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## [Node red does not start after updating node german feiertage](https://discourse.nodered.org/t/node-red-does-not-start-after-updating-node-german-feiertage/28265)

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**Author:** [@Riefnacken](https://discourse.nodered.org/u/Riefnacken)\
**Replies:** 4\
**Last updated:** [13 June 2020 07:35 UTC](https://discourse.nodered.org/t/node-red-does-not-start-after-updating-node-german-feiertage/28265 "2020-06-13T07:35:43Z")

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Hello, after updating this node https://flows.nodered.org/node/node-red-contrib-german-holidays , node red cannot start anymores. Please help me. { "ccu": { "VERSION": "3.51.6", "PRODUCT": "ccu3", …

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## [Can not deploy - document update conflict](https://discourse.nodered.org/t/can-not-deploy-document-update-conflict/28146)

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**Author:** [@piptan](https://discourse.nodered.org/u/piptan)\
**Replies:** 1\
**Last updated:** [13 June 2020 03:30 UTC](https://discourse.nodered.org/t/can-not-deploy-document-update-conflict/28146 "2020-06-13T03:30:52Z")

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Using node-red on IBM cloud, last night there was some failures (perhaps caused by network) causing my editor to lost contact with the server while I was trying to update codes. After a few clicks on attempting to merge …

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## [Help in understanding output from Modbus node](https://discourse.nodered.org/t/help-in-understanding-output-from-modbus-node/28194)

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**Author:** [@grant1](https://discourse.nodered.org/u/grant1)\
**Replies:** 5\
**Last updated:** [12 June 2020 06:26 UTC](https://discourse.nodered.org/t/help-in-understanding-output-from-modbus-node/28194 "2020-06-12T06:26:34Z")

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I have read and re-read all the posts here about Modbus nodes and their output, but I am truly stumped as to what I am seeing. In CAS Modbus scanner, I get: while in Node-RED (taken a few minutes later, and trying t…

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## [Simple question about JSON conversion](https://discourse.nodered.org/t/simple-question-about-json-conversion/28250)

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**Author:** [@ikoth](https://discourse.nodered.org/u/ikoth)\
**Replies:** 7\
**Last updated:** [12 June 2020 22:46 UTC](https://discourse.nodered.org/t/simple-question-about-json-conversion/28250 "2020-06-12T22:46:53Z")

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Hi there, I need to convert a true/false boolean return into a JSON object, exchanging the boolean values for "1" or "0": I've got this far: But I don't know what value to put in the highlighted box, as "msg.payload…

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## [Error loading settings file from USB drive](https://discourse.nodered.org/t/error-loading-settings-file-from-usb-drive/28248)

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**Author:** [@starcom](https://discourse.nodered.org/u/starcom)\
**Replies:** 8\
**Last updated:** [12 June 2020 22:37 UTC](https://discourse.nodered.org/t/error-loading-settings-file-from-usb-drive/28248 "2020-06-12T22:37:16Z")

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Trying to use USB SDD for NR settings. Changing settings,js UserDir to use /mnt/usbdrive gives error Thk

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## [Ui\_text\_input retain last input - tricky to use the widget sometimes](https://discourse.nodered.org/t/ui-text-input-retain-last-input-tricky-to-use-the-widget-sometimes/28256)

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**Author:** [@Andrei](https://discourse.nodered.org/u/Andrei)\
**Replies:** 1\
**Last updated:** [12 June 2020 21:44 UTC](https://discourse.nodered.org/t/ui-text-input-retain-last-input-tricky-to-use-the-widget-sometimes/28256 "2020-06-12T21:44:04Z")

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I noticed that many Node-RED users get confused with the behaviour of the ui\_text\_input widget and I am not an exception. I am trying to find a solution for the issue below for almost 3 hours now without success. The f…

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## [StartBootstrap with Node Red](https://discourse.nodered.org/t/startbootstrap-with-node-red/28219)

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**Author:** [@fui86](https://discourse.nodered.org/u/fui86)\
**Replies:** 3\
**Last updated:** [12 June 2020 19:50 UTC](https://discourse.nodered.org/t/startbootstrap-with-node-red/28219 "2020-06-12T19:50:22Z")

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Goodmorning everyone! I contact you because I'm new to Node-Red and I'm starting to take my first steps in this fantastic system. But I need help, as I would like to integrate this Dashboard template on Node Red: https…

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## [How to do a Word Cloud](https://discourse.nodered.org/t/how-to-do-a-word-cloud/28213)

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**Author:** [@Anir](https://discourse.nodered.org/u/Anir)\
**Replies:** 12\
**Last updated:** [12 June 2020 19:35 UTC](https://discourse.nodered.org/t/how-to-do-a-word-cloud/28213 "2020-06-12T19:35:43Z")

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Good day, My first post here so please excuse any errors. I have a python word cloud that I developed using Jupyter notebook. It works perfect there. I then want to show this in my node-red dashboard. Whats the best way …

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## [Line Chart with 2 lines](https://discourse.nodered.org/t/line-chart-with-2-lines/28234)

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**Author:** [@hmgp](https://discourse.nodered.org/u/hmgp)\
**Replies:** 8\
**Last updated:** [12 June 2020 18:50 UTC](https://discourse.nodered.org/t/line-chart-with-2-lines/28234 "2020-06-12T18:50:45Z")

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Hello! Newbie here, starting to learn Node-Red. I've been wrestling with this for more than 2 weeks, being on and off, when time allows. I have a database, in which I make a query, and get results for temperature and h…

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## [Alternatives for PLC B&R data extraction](https://discourse.nodered.org/t/alternatives-for-plc-b-r-data-extraction/27343)

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**Author:** [@PSamuel](https://discourse.nodered.org/u/PSamuel)\
**Replies:** 9\
**Last updated:** [12 June 2020 18:42 UTC](https://discourse.nodered.org/t/alternatives-for-plc-b-r-data-extraction/27343 "2020-06-12T18:42:15Z")

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How do I extract data from a B&R PLC with Node-Red? What are the alternatives?

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## [Persistent rbe node?](https://discourse.nodered.org/t/persistent-rbe-node/20779)

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**Author:** [@pcb1962](https://discourse.nodered.org/u/pcb1962)\
**Replies:** 14\
**Last updated:** [12 June 2020 13:14 UTC](https://discourse.nodered.org/t/persistent-rbe-node/20779 "2020-06-12T13:14:35Z")

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I have a lot of zigbee sensors which send out reminders of their status at regular intervals, so I use a lot of rbe nodes so that I only process actual changes in state. Unfortunately every time I deploy, the rbe nodes l…

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## [Clear debug window by code](https://discourse.nodered.org/t/clear-debug-window-by-code/28243)

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**Author:** [@crester](https://discourse.nodered.org/u/crester)\
**Replies:** 3\
**Last updated:** [12 June 2020 17:36 UTC](https://discourse.nodered.org/t/clear-debug-window-by-code/28243 "2020-06-12T17:36:24Z")

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Hello is there a method to clear the debug window by code? Thank yoy KR

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## [Nodered on digitalocean?](https://discourse.nodered.org/t/nodered-on-digitalocean/28244)

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**Author:** [@mattk](https://discourse.nodered.org/u/mattk)\
**Replies:** 0\
**Last updated:** [12 June 2020 16:59 UTC](https://discourse.nodered.org/t/nodered-on-digitalocean/28244 "2020-06-12T16:59:57Z")

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Hi, anyone have recent experience running Nodered on a digitalocean droplet? I'll have about 20 esp8266/esp32 sensors feeding into nodered via mqtt in various locations, Blynk is used to interface to the data. Using my …

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