# Latest **URL:** https://discourse.nodered.org/latest.md?page=934 [Latest](https://discourse.nodered.org/latest.md) · [Categories](https://discourse.nodered.org/categories.md) · [Tags](https://discourse.nodered.org/tags.md) **Page:** 935 --- ## [Disable communication between nodes by trigger](https://discourse.nodered.org/t/disable-communication-between-nodes-by-trigger/37428)
**Author:** [@IvanPoluda](https://discourse.nodered.org/u/IvanPoluda)\ **Replies:** 2\ **Last updated:** [13 December 2020 09:52 UTC](https://discourse.nodered.org/t/disable-communication-between-nodes-by-trigger/37428 "2020-12-13T09:52:06Z")
I have a set of nodes that, depending on some events, make a button enabled or disabled (sending msg.enabled=true/false). This state is sent to the button every 3 seconds. There is also an event that should enable or dis… --- ## [How to insert blank text space in a UI text node?](https://discourse.nodered.org/t/how-to-insert-blank-text-space-in-a-ui-text-node/37389)
**Author:** [@SuperNinja](https://discourse.nodered.org/u/SuperNinja)\ **Replies:** 8\ **Last updated:** [13 December 2020 08:43 UTC](https://discourse.nodered.org/t/how-to-insert-blank-text-space-in-a-ui-text-node/37389 "2020-12-13T08:43:26Z")
Hi all, Do you know how to insert "blank text" in this line? I tried spaces (keyboard space bar), but they don't count. I have to put characters (points) to separate these 2 values. {{payload.temp}}°c ..... \ **Author:** [@sybux](https://discourse.nodered.org/u/sybux)\ **Replies:** 6\ **Last updated:** [13 December 2020 07:22 UTC](https://discourse.nodered.org/t/mqtt-forwarding-message-based-on-received-message/36812 "2020-12-13T07:22:26Z") Hi there, After googling for more than need (which means more than 5 minutes :slight\_smile: ), I've decided to ask my question here, even if it's simple, already answered but never found. Here is the context : I have a… --- ## [Please - Why won't this work](https://discourse.nodered.org/t/please-why-wont-this-work/37403)
**Author:** [@FatPilot](https://discourse.nodered.org/u/FatPilot)\ **Replies:** 6\ **Last updated:** [13 December 2020 01:30 UTC](https://discourse.nodered.org/t/please-why-wont-this-work/37403 "2020-12-13T01:30:50Z")
I just can't get this to work. Thanks in advance Cheers // All the vars below are of type string var reg = msg.payload.registration; var actype = msg.payload.type; var alt = String(msg.payload.altitude); var squaw… --- ## [Projects trouble](https://discourse.nodered.org/t/projects-trouble/37426)
**Author:** [@RASelkirk](https://discourse.nodered.org/u/RASelkirk)\ **Replies:** 2\ **Last updated:** [13 December 2020 00:41 UTC](https://discourse.nodered.org/t/projects-trouble/37426 "2020-12-13T00:41:31Z")
Hi All, Jeez I hate being a dummy! I'm trying to set up N-R with the projects option. I added the lines to my settings.js file: editorTheme: { projects: { enabled: true } }, Stopped N-R (it… --- ## [Display time since last zigbee2mqtt recieved](https://discourse.nodered.org/t/display-time-since-last-zigbee2mqtt-recieved/37413)
**Author:** [@Chaos](https://discourse.nodered.org/u/Chaos)\ **Replies:** 0\ **Last updated:** [12 December 2020 17:25 UTC](https://discourse.nodered.org/t/display-time-since-last-zigbee2mqtt-recieved/37413 "2020-12-12T17:25:29Z")
Hi I am using the zigbee to mqtt admin panel in node red, to manage all my zigbee devices. This is a really good flow that displays all the infomation from zigbee devices and modify them. But one thing that would be use… --- ## [Ui\_control doesn't react on tab change](https://discourse.nodered.org/t/ui-control-doesnt-react-on-tab-change/37421)
**Author:** [@n300](https://discourse.nodered.org/u/n300)\ **Replies:** 0\ **Last updated:** [12 December 2020 19:54 UTC](https://discourse.nodered.org/t/ui-control-doesnt-react-on-tab-change/37421 "2020-12-12T19:54:29Z")
Hi there, sorry if this question sounds a little bit silly, but I'm quite new in dashboard design. My first project is to serve status display for my homematic home automation to android tablet. At the moment there are… --- ## [How to run node red on startup?](https://discourse.nodered.org/t/how-to-run-node-red-on-startup/37336)
**Author:** [@vikaspaithane](https://discourse.nodered.org/u/vikaspaithane)\ **Replies:** 6\ **Last updated:** [12 December 2020 17:28 UTC](https://discourse.nodered.org/t/how-to-run-node-red-on-startup/37336 "2020-12-12T17:28:39Z")
I want to run node red on windows at startup and it will always on, I have tried it on Task shedular but there is required node red installation path, how to check its default path? --- ## [Questions on node-red-contrib-ui-svg](https://discourse.nodered.org/t/questions-on-node-red-contrib-ui-svg/37031)
**Author:** [@Sean-McG](https://discourse.nodered.org/u/Sean-McG)\ **Replies:** 25\ **Last updated:** [12 December 2020 17:18 UTC](https://discourse.nodered.org/t/questions-on-node-red-contrib-ui-svg/37031 "2020-12-12T17:18:33Z")
Hi all, I'm no expert in these things, but having some fun with the whole smart home / IOT thing. I haven’t really done much coding since I left high school, I wouldn't like to say how long ago that was but we used pun… --- ## [\[solved\]RaspBee II into Node Red](https://discourse.nodered.org/t/solved-raspbee-ii-into-node-red/37373)
**Author:** [@vikozo](https://discourse.nodered.org/u/vikozo)\ **Replies:** 5\ **Last updated:** [12 December 2020 13:45 UTC](https://discourse.nodered.org/t/solved-raspbee-ii-into-node-red/37373 "2020-12-12T13:45:37Z")
Hallo i have a Phoscon RaspBee II Modul on my Raspberry Pi 4 connected. i installed the Software in the Command Line now i would like to connect it to Node Red. i installed node-red-contrib-zigbee2mqtt but i can't … --- ## [Geofence won't add "inarea" property](https://discourse.nodered.org/t/geofence-wont-add-inarea-property/37383)
**Author:** [@FatPilot](https://discourse.nodered.org/u/FatPilot)\ **Replies:** 4\ **Last updated:** [12 December 2020 13:13 UTC](https://discourse.nodered.org/t/geofence-wont-add-inarea-property/37383 "2020-12-12T13:13:39Z")
Hi everyone, I'm new here. I'm using the flight Radar 24 node into the geofence node with the "inarea" option selected. I can see the message and all of the usual objects are there, I just cant see the "inarea" object … --- ## [Node Red restart from within the active flow](https://discourse.nodered.org/t/node-red-restart-from-within-the-active-flow/37397)
**Author:** [@bmoel](https://discourse.nodered.org/u/bmoel)\ **Replies:** 4\ **Last updated:** [12 December 2020 12:13 UTC](https://discourse.nodered.org/t/node-red-restart-from-within-the-active-flow/37397 "2020-12-12T12:13:03Z")
The problem is that the ModBus node does reconnect after the VPN disconnect and reconnect. I have set up the ModBus node to send a blank msg if the read fails. So far so good. I would then like to flow to redeploy or res… --- ## [Pijuice Zero i2c](https://discourse.nodered.org/t/pijuice-zero-i2c/37358)
**Author:** [@Nice\_to\_have](https://discourse.nodered.org/u/Nice_to_have)\ **Replies:** 0\ **Last updated:** [11 December 2020 15:49 UTC](https://discourse.nodered.org/t/pijuice-zero-i2c/37358 "2020-12-11T15:49:02Z")
Good day, I need some help with my PiJuice zero. From the CLI command line interface I changed the i2c address to 15. How ever, the command line interface it self does not change to 15 so it says comm failure from the… --- ## [Bypass/Ignore a node based on certain input?](https://discourse.nodered.org/t/bypass-ignore-a-node-based-on-certain-input/37356)
**Author:** [@TomJC70](https://discourse.nodered.org/u/TomJC70)\ **Replies:** 2\ **Last updated:** [12 December 2020 07:35 UTC](https://discourse.nodered.org/t/bypass-ignore-a-node-based-on-certain-input/37356 "2020-12-12T07:35:35Z")
Depending on the time of day, the light in the loo is turned on at modest or minimal brightness. On a long-press, it'll go to max brightness. In either case, the light turns off after 10 minutes. That's working fine. I… --- ## [\[Major Release\] uibuilder v3](https://discourse.nodered.org/t/major-release-uibuilder-v3/37364)
**Author:** [@TotallyInformation](https://discourse.nodered.org/u/TotallyInformation)\ **Replies:** 1\ **Last updated:** [12 December 2020 07:06 UTC](https://discourse.nodered.org/t/major-release-uibuilder-v3/37364 "2020-12-12T07:06:24Z")
For better or worse, I've decided that the v3 branch of uibuilder is not going to get any better unless more people test it. So I am releasing now. Far too long in the making, this release contains breaking changes so p… --- ## [Help with displaying text log](https://discourse.nodered.org/t/help-with-displaying-text-log/37333)
**Author:** [@leftymuller](https://discourse.nodered.org/u/leftymuller)\ **Replies:** 4\ **Last updated:** [12 December 2020 02:54 UTC](https://discourse.nodered.org/t/help-with-displaying-text-log/37333 "2020-12-12T02:54:11Z")
Hi all! Im a bit of a nodered newbie so I thought id ask for some help and guidance I want to do a log on my dashboard making a log that updates on changes. The file would be a text file log. I have tried using tail… --- ## [If it's in the docs, I couldn't find it](https://discourse.nodered.org/t/if-its-in-the-docs-i-couldnt-find-it/37329)
**Author:** [@RASelkirk](https://discourse.nodered.org/u/RASelkirk)\ **Replies:** 14\ **Last updated:** [11 December 2020 21:56 UTC](https://discourse.nodered.org/t/if-its-in-the-docs-i-couldnt-find-it/37329 "2020-12-11T21:56:09Z")
Crazy question. My N-R project is 99% finished and will be implemented next week, time for a new project! So, how does one "shelve" their current project and start a new one? There's got to be a way to save a project for… --- ## [Free (12month) Node-RED cloud instance](https://discourse.nodered.org/t/free-12month-node-red-cloud-instance/14319)
**Author:** [@cymplecy](https://discourse.nodered.org/u/cymplecy)\ **Replies:** 5\ **Last updated:** [11 December 2020 20:12 UTC](https://discourse.nodered.org/t/free-12month-node-red-cloud-instance/14319 "2020-12-11T20:12:26Z")
JFI You can get a free (for 12months - no credit card needed) Node-RED cloud instance (handy for playing around with) https://www.iotwithus.com/free-node-red-cloud-hosting/ just use the PS It took a while (few days) … --- ## [Playing spotify playlist in the morning](https://discourse.nodered.org/t/playing-spotify-playlist-in-the-morning/37369)
**Author:** [@pimmen85](https://discourse.nodered.org/u/pimmen85)\ **Replies:** 0\ **Last updated:** [11 December 2020 19:25 UTC](https://discourse.nodered.org/t/playing-spotify-playlist-in-the-morning/37369 "2020-12-11T19:25:36Z")
I'm just starting to use node red for my automations, and I'm currently struggling with setting up a flow that plays a specific playlist every morning, to start I can't even get the Spotify node to be configured, have go… --- ## [Modbustcp write fc15](https://discourse.nodered.org/t/modbustcp-write-fc15/37347)
**Author:** [@serinmo](https://discourse.nodered.org/u/serinmo)\ **Replies:** 9\ **Last updated:** [11 December 2020 18:15 UTC](https://discourse.nodered.org/t/modbustcp-write-fc15/37347 "2020-12-11T18:15:04Z")
Hi, I'm trying to switch a simple on/off by modbustcp write but is imposible... I can read prefectly array from plc (Arduino, with mudbus.h library) but I can't write, always recived error about is not an array. … --- ## [Issues installing npm install node-red-contrib-ttn](https://discourse.nodered.org/t/issues-installing-npm-install-node-red-contrib-ttn/37322)
**Author:** [@ScheepersJohan](https://discourse.nodered.org/u/ScheepersJohan)\ **Replies:** 3\ **Last updated:** [11 December 2020 15:33 UTC](https://discourse.nodered.org/t/issues-installing-npm-install-node-red-contrib-ttn/37322 "2020-12-11T15:33:04Z")
Hi, I am running a PI4 and are trying to install --- npm install node-red-contrib-ttn. It fails to install, please see below error log, can anyone please assit me. Thank you. \> 0 info it worked if it ends with ok 1 v… --- ## [Flow State Change Check](https://discourse.nodered.org/t/flow-state-change-check/37354)
**Author:** [@madchuska](https://discourse.nodered.org/u/madchuska)\ **Replies:** 1\ **Last updated:** [11 December 2020 14:49 UTC](https://discourse.nodered.org/t/flow-state-change-check/37354 "2020-12-11T14:49:37Z")
Hi, New user here. I have set-up my first flow to control a tuya based fan that has been flashed with tasmota. I have a flow that checks the fan state ie if I use the buttons on the fan to change the speed, it reports … --- ## [UDP send started to crash](https://discourse.nodered.org/t/udp-send-started-to-crash/37352)
**Author:** [@Wingnut](https://discourse.nodered.org/u/Wingnut)\ **Replies:** 0\ **Last updated:** [11 December 2020 13:32 UTC](https://discourse.nodered.org/t/udp-send-started-to-crash/37352 "2020-12-11T13:32:16Z")
I've been developing a Flow and Dashboard that communicates with my Network Owl Intuition device by UDP. Numerous buttons send commands like "GET,DEVICE,ALL, ACCESSCODE" through a single UDP Send node (port 8887), and I … --- ## [Ui\_dropdown: set msg.options for multiple entries](https://discourse.nodered.org/t/ui-dropdown-set-msg-options-for-multiple-entries/37318)
**Author:** [@ThingsIoT](https://discourse.nodered.org/u/ThingsIoT)\ **Replies:** 4\ **Last updated:** [11 December 2020 12:59 UTC](https://discourse.nodered.org/t/ui-dropdown-set-msg-options-for-multiple-entries/37318 "2020-12-11T12:59:24Z")
Hi.. I am using ui\_dropdown node. I am able to set msg.options in change node and populated in dropdown for single entry but when I try to inject multiple entries, it is repopulating or refreshing the menu. How to popul… --- ## [Multiple DS18B20 Zero Reading Error](https://discourse.nodered.org/t/multiple-ds18b20-zero-reading-error/36228)
**Author:** [@dunum](https://discourse.nodered.org/u/dunum)\ **Replies:** 8\ **Last updated:** [11 December 2020 12:06 UTC](https://discourse.nodered.org/t/multiple-ds18b20-zero-reading-error/36228 "2020-12-11T12:06:21Z")
Hi I have a Raspberry Pi with four DS18B20 sensors, using an rpi-ds18b20 node triggered at one minute intervals. The sensors are wired in parallel and use one 4K7 pull up on the data line. Their cable lengths are all le… --- ## [HTML5 Videostream in Dashboard (INSTAR IP Camera)](https://discourse.nodered.org/t/html5-videostream-in-dashboard-instar-ip-camera/37337)
**Author:** [@mpxd](https://discourse.nodered.org/u/mpxd)\ **Replies:** 0\ **Last updated:** [11 December 2020 06:52 UTC](https://discourse.nodered.org/t/html5-videostream-in-dashboard-instar-ip-camera/37337 "2020-12-11T06:52:48Z")
HTML5 Videostream from your IP Camera Bevore I was only able to add JPG Images or an MJPEG Stream to the Node-RED Dashboard. But INSTAR recently published a set of Javascript files (webassembled FFMPEG) to bring their c… --- ## [Unable to remove node from palette](https://discourse.nodered.org/t/unable-to-remove-node-from-palette/37097)
**Author:** [@goldriver2](https://discourse.nodered.org/u/goldriver2)\ **Replies:** 29\ **Last updated:** [11 December 2020 10:04 UTC](https://discourse.nodered.org/t/unable-to-remove-node-from-palette/37097 "2020-12-11T10:04:29Z")
I am trying to remove the node-red-node-google from pallette I went in palette manager there was no "remove" option avaliable, I have made sure I had no node in any flow, also made sure there was no configuration node ,… --- ## [How to print timestamp with full digits e.g. 12:02:05.54 and not 12:2:5.54](https://discourse.nodered.org/t/how-to-print-timestamp-with-full-digits-e-g-1205-54-and-not-125-54/12820)
**Author:** [@xoani](https://discourse.nodered.org/u/xoani)\ **Replies:** 6\ **Last updated:** [11 December 2020 05:16 UTC](https://discourse.nodered.org/t/how-to-print-timestamp-with-full-digits-e-g-1205-54-and-not-125-54/12820 "2020-12-11T05:16:16Z")
Hello. It is extremely important for the purpose of my project that I pass the timestamp as the output of a function node, it does not matter if it is Javascript or Python3 Right now I am using: var today=nesw Date(); … --- ## [Recommended scheduling for roller-shutters](https://discourse.nodered.org/t/recommended-scheduling-for-roller-shutters/36927)
**Author:** [@PizzaProgram](https://discourse.nodered.org/u/PizzaProgram)\ **Replies:** 10\ **Last updated:** [11 December 2020 02:14 UTC](https://discourse.nodered.org/t/recommended-scheduling-for-roller-shutters/36927 "2020-12-11T02:14:39Z")
What is the recommended way to handle relays to control multiple length roller-shutters? This "trivial" task is getting more and more complex as I start to dig into it. Details: 1 Start / Stop + 1 Direction relay for… --- ## [Please contact us regarding Postgres settings](https://discourse.nodered.org/t/please-contact-us-regarding-postgres-settings/37286)
**Author:** [@Athurian](https://discourse.nodered.org/u/Athurian)\ **Replies:** 2\ **Last updated:** [11 December 2020 01:06 UTC](https://discourse.nodered.org/t/please-contact-us-regarding-postgres-settings/37286 "2020-12-11T01:06:20Z")
Please contact us regarding Postgres settings. Nothing else, I'm thinking of sending data to 2 servers with Postgres. But I did it by installing postges flow, but I have to send the problem to 2 places The server sett… [Previous page](https://discourse.nodered.org/latest.md?page=933) [Next page](https://discourse.nodered.org/latest.md?page=935)