# Latest

**URL:** https://discourse.nodered.org/latest.md?page=1161

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

**Page:** 1162

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## [PI Keyboard dropping keys](https://discourse.nodered.org/t/pi-keyboard-dropping-keys/21404)

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**Author:** [@Kenmazing](https://discourse.nodered.org/u/Kenmazing)\
**Replies:** 0\
**Last updated:** [7 February 2020 16:32 UTC](https://discourse.nodered.org/t/pi-keyboard-dropping-keys/21404 "2020-02-07T16:32:37Z")

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Hi, I have been trying to use the Pi Keyboard node for reading from a Zebra scangun. On an RPI 3, I get most of the keys, but it would randomly drop them. I saw where RPI 4 has vastly improved USB capability, so got o…

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## [Node is not working](https://discourse.nodered.org/t/node-is-not-working/21387)

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**Author:** [@pranavthakkar](https://discourse.nodered.org/u/pranavthakkar)\
**Replies:** 2\
**Last updated:** [7 February 2020 12:37 UTC](https://discourse.nodered.org/t/node-is-not-working/21387 "2020-02-07T12:37:39Z")

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Hey folks! I'm working with webcam and just installed the library npm install node-red-contrib-node-webcam but it is not working showing error Can not find the module 'webcam'. What should i do? very few libraries …

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## [Node-red-contrib-deduplication](https://discourse.nodered.org/t/node-red-contrib-deduplication/21378)

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**Author:** [@Iliyas](https://discourse.nodered.org/u/Iliyas)\
**Replies:** 9\
**Last updated:** [7 February 2020 12:24 UTC](https://discourse.nodered.org/t/node-red-contrib-deduplication/21378 "2020-02-07T12:24:44Z")

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Hello, I'm working on deduplication node but its not working as it states, if anybody had worked on it please share the flow. node-red-contrib-dedupulication-adv

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## [Node-red to mysql - incorrect datetime value](https://discourse.nodered.org/t/node-red-to-mysql-incorrect-datetime-value/21344)

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**Author:** [@freiheit2018](https://discourse.nodered.org/u/freiheit2018)\
**Replies:** 11\
**Last updated:** [7 February 2020 12:10 UTC](https://discourse.nodered.org/t/node-red-to-mysql-incorrect-datetime-value/21344 "2020-02-07T12:10:57Z")

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Hello there, I am new to Node-Red but I like the idea and possiblilities very much. With my very first project, I tried to implement the "Log MQTT to MySQL" flow (Log MQTT to MySQL (flow) - Node-RED) But I haven´t get i…

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## [Node-red-node-ui-table - Disable Scroll Bars](https://discourse.nodered.org/t/node-red-node-ui-table-disable-scroll-bars/21395)

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**Author:** [@droberts](https://discourse.nodered.org/u/droberts)\
**Replies:** 0\
**Last updated:** [7 February 2020 12:03 UTC](https://discourse.nodered.org/t/node-red-node-ui-table-disable-scroll-bars/21395 "2020-02-07T12:03:18Z")

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Hi All, I am having some issues with the ui-table node. No matter what I do, it is displaying the table with vertical scrollbars. The horizontal ones disappear as you'd expect, but with plenty of vertical room in the gr…

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## [Get All Env In Subflow](https://discourse.nodered.org/t/get-all-env-in-subflow/21392)

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**Author:** [@Soloam](https://discourse.nodered.org/u/Soloam)\
**Replies:** 4\
**Last updated:** [7 February 2020 11:36 UTC](https://discourse.nodered.org/t/get-all-env-in-subflow/21392 "2020-02-07T11:36:53Z")

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Hello, I would like to know if it's possible to list all the env that are declared on a subflow! I would like to simplify my code from mapping the env to specific variables, and I would like them to be dynamic! Something…

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## [Startup .json script on node-red server start and to view in editor also](https://discourse.nodered.org/t/startup-json-script-on-node-red-server-start-and-to-view-in-editor-also/21394)

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**Author:** [@karlyboy](https://discourse.nodered.org/u/karlyboy)\
**Replies:** 0\
**Last updated:** [7 February 2020 11:34 UTC](https://discourse.nodered.org/t/startup-json-script-on-node-red-server-start-and-to-view-in-editor-also/21394 "2020-02-07T11:34:10Z")

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Folks, I'm a newby and learning so forgive my lack of knowledge. I have a nodejs and node-red combined server. All working nicely. Followed the parameters but can't seem to launch a default startup script or to view it…

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## [Which Alexa node suitable (Speech to text messaging)](https://discourse.nodered.org/t/which-alexa-node-suitable-speech-to-text-messaging/21173)

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**Author:** [@Cathprotech](https://discourse.nodered.org/u/Cathprotech)\
**Replies:** 11\
**Last updated:** [7 February 2020 10:56 UTC](https://discourse.nodered.org/t/which-alexa-node-suitable-speech-to-text-messaging/21173 "2020-02-07T10:56:44Z")

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Background... I have built a message system using and ESP12 and 2-line LCD display. It receives MQTT messages via Node-Red and can send an acknowledgement back. It's a teenager notification unit! I open a Node-Red UI …

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## [Read data from InfluxDB](https://discourse.nodered.org/t/read-data-from-influxdb/21337)

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**Author:** [@mhechthz](https://discourse.nodered.org/u/mhechthz)\
**Replies:** 4\
**Last updated:** [7 February 2020 10:40 UTC](https://discourse.nodered.org/t/read-data-from-influxdb/21337 "2020-02-07T10:40:39Z")

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Hi, I'm rather new to Node Red and have a probably simple question. I want to read data from an InfluxDB, so added a node for "influxdb in" and a "msg.payload". Than I connected the InfluxDB node and added a valid sele…

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## [Node installed but not shows in dragand drop](https://discourse.nodered.org/t/node-installed-but-not-shows-in-dragand-drop/21388)

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**Author:** [@DemonKing](https://discourse.nodered.org/u/DemonKing)\
**Replies:** 1\
**Last updated:** [7 February 2020 09:41 UTC](https://discourse.nodered.org/t/node-installed-but-not-shows-in-dragand-drop/21388 "2020-02-07T09:41:21Z")

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I insalled two nodes message came node installed in pallet node is there , but cant saw that node in drag and drop section

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## [How to use basic authentication inside the function node?](https://discourse.nodered.org/t/how-to-use-basic-authentication-inside-the-function-node/21384)

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**Author:** [@Jude.Robise](https://discourse.nodered.org/u/Jude.Robise)\
**Replies:** 2\
**Last updated:** [7 February 2020 09:36 UTC](https://discourse.nodered.org/t/how-to-use-basic-authentication-inside-the-function-node/21384 "2020-02-07T09:36:50Z")

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I want to display some images from an URL (which has basic authentication) on node red dashboard. But every time I have to refresh the URL link and manually insert user name and password to authenticate in google chrome. …

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## [Http in message local nodered](https://discourse.nodered.org/t/http-in-message-local-nodered/21356)

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**Author:** [@Meng](https://discourse.nodered.org/u/Meng)\
**Replies:** 4\
**Last updated:** [7 February 2020 09:08 UTC](https://discourse.nodered.org/t/http-in-message-local-nodered/21356 "2020-02-07T09:08:26Z")

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Hi all, I want to receive a SigFox http message on my local node-red running on the server. I use the http in node to receive this message with the url /SigFox, in the SigFox backend i use https://myNodeRed.com/SigFox to…

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## [Saving images from URL to folder](https://discourse.nodered.org/t/saving-images-from-url-to-folder/21246)

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**Author:** [@rueben](https://discourse.nodered.org/u/rueben)\
**Replies:** 4\
**Last updated:** [7 February 2020 06:20 UTC](https://discourse.nodered.org/t/saving-images-from-url-to-folder/21246 "2020-02-07T06:20:28Z")

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Hi, I would like to know how to save images from URL to a folder. For example, the image URL data:image/jpeg;base64,/9j/4AAQSkZJRgABAQAAAQABAAD/2wCEAAkGBw8QEA0QEBAQEA8QEBAQDw4PEA8QDhAPFREWGBUSFRMYHCggGCAmGxUTIz0hJSsrLi…

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## [Underscore \_ missing? Any ideas why?](https://discourse.nodered.org/t/underscore-missing-any-ideas-why/21373)

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**Author:** [@dr\_cave\_dweller](https://discourse.nodered.org/u/dr_cave_dweller)\
**Replies:** 3\
**Last updated:** [7 February 2020 05:49 UTC](https://discourse.nodered.org/t/underscore-missing-any-ideas-why/21373 "2020-02-07T05:49:09Z")

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This is an odd one. I copied over a flow from one raspberry pi to another (pi3b+ running NR v1.0.3 to pi4 running NR v1.0.3). I copied the flow by exporting to clipboard, copying, emailing, then pasting in as text to a …

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## [New to nodered and first problem](https://discourse.nodered.org/t/new-to-nodered-and-first-problem/21369)

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**Author:** [@MarcoGT](https://discourse.nodered.org/u/MarcoGT)\
**Replies:** 2\
**Last updated:** [6 February 2020 21:09 UTC](https://discourse.nodered.org/t/new-to-nodered-and-first-problem/21369 "2020-02-06T21:09:30Z")

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Hi all, very new to nodered; I am using it with this contribution to control my HomeAutomation SW (running on a MacMini); I did the same setup with nodejs 12.14.1 and nodered 1.0.3 and on a machine is working fine, on …

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## [Notifications for the forum](https://discourse.nodered.org/t/notifications-for-the-forum/21329)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 4\
**Last updated:** [6 February 2020 20:48 UTC](https://discourse.nodered.org/t/notifications-for-the-forum/21329 "2020-02-06T20:48:37Z")

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I was helping someone with their Tasmota bulb in a thread. I posted a couple of things and got some likes. (Good) But then I got a reply: No notification received. To clarify: 1 - I didn't get an e-mail. (Slight…

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## [Ui\_button missing after node-red-dashboard upgrade](https://discourse.nodered.org/t/ui-button-missing-after-node-red-dashboard-upgrade/21321)

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**Author:** [@lenny1972](https://discourse.nodered.org/u/lenny1972)\
**Replies:** 5\
**Last updated:** [6 February 2020 20:26 UTC](https://discourse.nodered.org/t/ui-button-missing-after-node-red-dashboard-upgrade/21321 "2020-02-06T20:26:09Z")

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After upgrading the node-red-dashboard palette from v 2.13.2 to v 2.19.3 ui\_button type disappered from the palette and my flows having button element didn't start anymore. The message error is the following: Flows sto…

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## [Cast Node-RED dashboard by Chromecast - like Home-Assistant Cast](https://discourse.nodered.org/t/cast-node-red-dashboard-by-chromecast-like-home-assistant-cast/20317)

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**Author:** [@philipp](https://discourse.nodered.org/u/philipp)\
**Replies:** 3\
**Last updated:** [6 February 2020 20:02 UTC](https://discourse.nodered.org/t/cast-node-red-dashboard-by-chromecast-like-home-assistant-cast/20317 "2020-02-06T20:02:17Z")

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Hello world! Just using Node-RED since some months and building some flows for home automation. For example: I am using some cast nodes (e.g. node-red-contrib-castv2) to send latest images from webcam to my Google Nest…

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## [MQTT Caching in the event of a WAN failure](https://discourse.nodered.org/t/mqtt-caching-in-the-event-of-a-wan-failure/21315)

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**Author:** [@joearkay](https://discourse.nodered.org/u/joearkay)\
**Replies:** 27\
**Last updated:** [6 February 2020 18:04 UTC](https://discourse.nodered.org/t/mqtt-caching-in-the-event-of-a-wan-failure/21315 "2020-02-06T18:04:49Z")

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Hi all, I'm interested in how the MQTT protocol can be utilised in a scenario where data delivery is critical, over a cellular or otherwise unstable WAN connection. Imagine we have a broker sat in the cloud and a remot…

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## [\[ANNOUNCE\] node-red-contrib-visualmapper](https://discourse.nodered.org/t/announce-node-red-contrib-visualmapper/21217)

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**Author:** [@Onixarts](https://discourse.nodered.org/u/Onixarts)\
**Replies:** 4\
**Last updated:** [6 February 2020 17:48 UTC](https://discourse.nodered.org/t/announce-node-red-contrib-visualmapper/21217 "2020-02-06T17:48:19Z")

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Hi everyone! Just want to share my latest node-red-contrib-visualmapper node. It can map one range to another with custom mapping function that You can draw in graphic editor. The node has few other capabilities, like di…

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## [Stop a running flow](https://discourse.nodered.org/t/stop-a-running-flow/21353)

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**Author:** [@pvklink](https://discourse.nodered.org/u/pvklink)\
**Replies:** 3\
**Last updated:** [6 February 2020 16:48 UTC](https://discourse.nodered.org/t/stop-a-running-flow/21353 "2020-02-06T16:48:42Z")

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Hi, I hope I can explain my functionality well. I have a management environment in which I can start functionality via a menu (flows). Some flows can also start automatically with an injection. Now I want to be able to…

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## [Tweaking chart options - Fill below line](https://discourse.nodered.org/t/tweaking-chart-options-fill-below-line/21357)

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**Author:** [@lowlow](https://discourse.nodered.org/u/lowlow)\
**Replies:** 2\
**Last updated:** [6 February 2020 16:36 UTC](https://discourse.nodered.org/t/tweaking-chart-options-fill-below-line/21357 "2020-02-06T16:36:32Z")

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Hi All, I'm looking to fill the area between the line and the x-axis ... unlucky so far with the msg.ui\_control. Here is what I've tried with a change node: What am I missing ?

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## [Serial Port issue](https://discourse.nodered.org/t/serial-port-issue/20763)

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**Author:** [@Satyamkc](https://discourse.nodered.org/u/Satyamkc)\
**Replies:** 5\
**Last updated:** [6 February 2020 15:59 UTC](https://discourse.nodered.org/t/serial-port-issue/20763 "2020-02-06T15:59:20Z")

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Hi there.. I am trying to use two different arduino on two different ports. When ever i change the port number of the one node, node-red assigns the same port number to different node. This is very frustrating. I've use…

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## [Help manipulating data inside an array](https://discourse.nodered.org/t/help-manipulating-data-inside-an-array/21348)

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**Author:** [@redlop](https://discourse.nodered.org/u/redlop)\
**Replies:** 0\
**Last updated:** [6 February 2020 12:24 UTC](https://discourse.nodered.org/t/help-manipulating-data-inside-an-array/21348 "2020-02-06T12:24:41Z")

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Im working on a project that sniffs nearby WiFi networks. How do I insert a conditional statement in a nested json array to output approximate distance based on RSSI value. Currently I can print out the RSSI and SSID of…

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## [Find server hit of installing nodes](https://discourse.nodered.org/t/find-server-hit-of-installing-nodes/21347)

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**Author:** [@DemonKing](https://discourse.nodered.org/u/DemonKing)\
**Replies:** 2\
**Last updated:** [6 February 2020 12:08 UTC](https://discourse.nodered.org/t/find-server-hit-of-installing-nodes/21347 "2020-02-06T12:08:53Z")

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Hi sir, I am going to install following nodes : 1 .npm install node-red-contrib-cron-plus 2 .npm install node-red-node-email and i am working in a secure work space . here everything in blocked so they asking which…

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## [Get stock values for a specific paper?](https://discourse.nodered.org/t/get-stock-values-for-a-specific-paper/21345)

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**Author:** [@Golonder](https://discourse.nodered.org/u/Golonder)\
**Replies:** 0\
**Last updated:** [6 February 2020 10:49 UTC](https://discourse.nodered.org/t/get-stock-values-for-a-specific-paper/21345 "2020-02-06T10:49:52Z")

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Hi, I am looking for a way to load e.g. Tesla stock figures in a 5min schedule into my Node-Red. Did somebody do this already ? Is there a reliable source of proper formattet JSON packages for this kind of data ? BR …

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## [gBridge service closing](https://discourse.nodered.org/t/gbridge-service-closing/21343)

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**Author:** [@Paul-Reed](https://discourse.nodered.org/u/Paul-Reed)\
**Replies:** 0\
**Last updated:** [6 February 2020 10:09 UTC](https://discourse.nodered.org/t/gbridge-service-closing/21343 "2020-02-06T10:09:26Z")

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For information, the gBridge service will be closing 15th March. Although it's still working now, it hasn't been supported for some time, so not totally unexpected... The gBridge service will be shut down on 15th March…

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## [How to subscribe to multiple clients in websocket node](https://discourse.nodered.org/t/how-to-subscribe-to-multiple-clients-in-websocket-node/21333)

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**Author:** [@VIKRAMAS](https://discourse.nodered.org/u/VIKRAMAS)\
**Replies:** 2\
**Last updated:** [6 February 2020 09:55 UTC](https://discourse.nodered.org/t/how-to-subscribe-to-multiple-clients-in-websocket-node/21333 "2020-02-06T09:55:13Z")

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I am customizing websocket node for subscribing to multiple comma separated node. I found the source code https://github.com/node-red/node-red/blob/master/test/nodes/core/network/22-websocket\_spec.js but how can I modify…

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## [Fetch data from actility into node-red](https://discourse.nodered.org/t/fetch-data-from-actility-into-node-red/21289)

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**Author:** [@F108](https://discourse.nodered.org/u/F108)\
**Replies:** 3\
**Last updated:** [6 February 2020 08:00 UTC](https://discourse.nodered.org/t/fetch-data-from-actility-into-node-red/21289 "2020-02-06T08:00:20Z")

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Hey, right now im having trouble in connecting (The idea is to fetch data) from thingpark actility into node-red. is there any guideline or tutorial that focus more on this?

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## [Node to control color bulb?](https://discourse.nodered.org/t/node-to-control-color-bulb/21158)

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**Author:** [@kanke](https://discourse.nodered.org/u/kanke)\
**Replies:** 9\
**Last updated:** [6 February 2020 05:30 UTC](https://discourse.nodered.org/t/node-to-control-color-bulb/21158 "2020-02-06T05:30:46Z")

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I got a few Feit color bulbs from Costco flashed tasmota it. Is there any node that I can use to control the brightness, warmness, and color? I guess the call service should work too but is there any document what exactl…

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