# Latest

**URL:** https://discourse.nodered.org/latest.md?page=472

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

**Page:** 473

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## [Unable to install node-red-contrib-modbus](https://discourse.nodered.org/t/unable-to-install-node-red-contrib-modbus/66307)

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**Author:** [@parkdev](https://discourse.nodered.org/u/parkdev)\
**Replies:** 4\
**Last updated:** [28 October 2022 22:00 UTC](https://discourse.nodered.org/t/unable-to-install-node-red-contrib-modbus/66307 "2022-10-28T22:00:15Z")

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Hi guys, I'm having issues getting this installed and have ran out of ideas on how to get it to work. So far I've tried a complete reinstall, setting NODE\_TLS\_REJECT\_UNAUTHORIZED=0, tried a manual installation. Nothing …

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## [Reading data from an RS485 sensor using the Modbus pallete](https://discourse.nodered.org/t/reading-data-from-an-rs485-sensor-using-the-modbus-pallete/67999)

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**Author:** [@fjamil](https://discourse.nodered.org/u/fjamil)\
**Replies:** 1\
**Last updated:** [28 October 2022 21:56 UTC](https://discourse.nodered.org/t/reading-data-from-an-rs485-sensor-using-the-modbus-pallete/67999 "2022-10-28T21:56:40Z")

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Hey everyone, very new to using the Modbus RTU protocol to get a reading from an ultrasonic sensor in real time. I believe I have trouble accessing the data stored in the registers. After having used simple Read, Write, …

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## [Babysitting my dashboard](https://discourse.nodered.org/t/babysitting-my-dashboard/69395)

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**Author:** [@9toejack](https://discourse.nodered.org/u/9toejack)\
**Replies:** 15\
**Last updated:** [28 October 2022 20:27 UTC](https://discourse.nodered.org/t/babysitting-my-dashboard/69395 "2022-10-28T20:27:27Z")

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Ok so this is a weird one maybe. I have node red running on a raspberry pi at my brewery. I just had an instant where the pi lost connection with router and i could no longer see it remotely. is there a way to check t…

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## [Template widget checkbox toggle update issue](https://discourse.nodered.org/t/template-widget-checkbox-toggle-update-issue/69729)

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**Author:** [@Mbessing](https://discourse.nodered.org/u/Mbessing)\
**Replies:** 1\
**Last updated:** [28 October 2022 19:34 UTC](https://discourse.nodered.org/t/template-widget-checkbox-toggle-update-issue/69729 "2022-10-28T19:34:43Z")

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Hi, I'm creating a project in which I want to be able to check/uncheck a checkbox manually (by clicking) and also by an external source such as MQTT input etc. In my test I simulate the external source by an inject node…

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## [Parse specific text from payload in Node-Red?](https://discourse.nodered.org/t/parse-specific-text-from-payload-in-node-red/69708)

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**Author:** [@Gawan](https://discourse.nodered.org/u/Gawan)\
**Replies:** 6\
**Last updated:** [28 October 2022 17:59 UTC](https://discourse.nodered.org/t/parse-specific-text-from-payload-in-node-red/69708 "2022-10-28T17:59:04Z")

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Hi all, I have a small task but it is a bit too tricky for me :slight\_smile: I am running a script from an EXEC Node that sometimes failes (once a day). In these cases I have to find out the ID of this script (usin…

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## [How to create ui builder dashboard](https://discourse.nodered.org/t/how-to-create-ui-builder-dashboard/69733)

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**Author:** [@node-to](https://discourse.nodered.org/u/node-to)\
**Replies:** 2\
**Last updated:** [28 October 2022 17:10 UTC](https://discourse.nodered.org/t/how-to-create-ui-builder-dashboard/69733 "2022-10-28T17:10:41Z")

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Hi, I trying to learn ui builder but, when I apply html file there is no out put, only a default ui is appearing. Can any one guide me.

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## [New to NodeRED. Need help to talk to a PLC](https://discourse.nodered.org/t/new-to-nodered-need-help-to-talk-to-a-plc/69707)

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**Author:** [@zmarcoz](https://discourse.nodered.org/u/zmarcoz)\
**Replies:** 1\
**Last updated:** [28 October 2022 16:04 UTC](https://discourse.nodered.org/t/new-to-nodered-need-help-to-talk-to-a-plc/69707 "2022-10-28T16:04:49Z")

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I have a Allen Bradley 1769-L30ER PLC. It has an RJ45 port. I connect it to a network switch to talk to robots and other device. May I know whether I can use that network switch to talk to NodeRED. If not, what hardwar…

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## [Join node using just timeout to send](https://discourse.nodered.org/t/join-node-using-just-timeout-to-send/69680)

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**Author:** [@Colin](https://discourse.nodered.org/u/Colin)\
**Replies:** 1\
**Last updated:** [28 October 2022 13:22 UTC](https://discourse.nodered.org/t/join-node-using-just-timeout-to-send/69680 "2022-10-28T13:22:23Z")

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This isn't working for me, which I find surprising. I have a Join node configured as So it should send a message 1 second after the first message, then wait for more messages and do the same again. At least that is…

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## [Not able to read response from device on USB](https://discourse.nodered.org/t/not-able-to-read-response-from-device-on-usb/69718)

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**Author:** [@hary](https://discourse.nodered.org/u/hary)\
**Replies:** 2\
**Last updated:** [28 October 2022 12:54 UTC](https://discourse.nodered.org/t/not-able-to-read-response-from-device-on-usb/69718 "2022-10-28T12:54:01Z")

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I have a device I can communicate to via USB/RS232 port. I know it receive the command I send because it react to them. I have a command to retrieve its state that should respond but I'm not able to read any response !…

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## [Switch state change](https://discourse.nodered.org/t/switch-state-change/69687)

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**Author:** [@kvs](https://discourse.nodered.org/u/kvs)\
**Replies:** 1\
**Last updated:** [28 October 2022 12:49 UTC](https://discourse.nodered.org/t/switch-state-change/69687 "2022-10-28T12:49:44Z")

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In HA, you can create auxiliary elements, such as a switch. I read the state of the switch through “current state”. And how to manage it?

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## [Install node red on old android, how to?](https://discourse.nodered.org/t/install-node-red-on-old-android-how-to/69670)

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**Author:** [@Elberto](https://discourse.nodered.org/u/Elberto)\
**Replies:** 4\
**Last updated:** [28 October 2022 12:34 UTC](https://discourse.nodered.org/t/install-node-red-on-old-android-how-to/69670 "2022-10-28T12:34:14Z")

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Hi to all users! I have several old android smartphones and tablets, I would like to use them as devices for domotic applications. I followed instructions about installing node red on android but I can't install packag…

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## [Je n'arrive pas à me connecter à ma carte](https://discourse.nodered.org/t/je-narrive-pas-a-me-connecter-a-ma-carte/69709)

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**Author:** [@Ener](https://discourse.nodered.org/u/Ener)\
**Replies:** 4\
**Last updated:** [28 October 2022 12:27 UTC](https://discourse.nodered.org/t/je-narrive-pas-a-me-connecter-a-ma-carte/69709 "2022-10-28T12:27:37Z")

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Bonjour; Je ne sais pas comment changer l'adresse ip de mon esclave sur node-red. Pouvez vous m'expliquer comment faire. Merci

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## [Single subflow - check number of instances?](https://discourse.nodered.org/t/single-subflow-check-number-of-instances/69727)

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**Author:** [@bakman2](https://discourse.nodered.org/u/bakman2)\
**Replies:** 5\
**Last updated:** [28 October 2022 11:39 UTC](https://discourse.nodered.org/t/single-subflow-check-number-of-instances/69727 "2022-10-28T11:39:21Z")

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I am creating a flow that I want to contain in a subflow, but as it exposes a websocket and http endpoint, I only want 1 subflow node to exist in the workspace (ie. can only expose the same http endpoint). Is there a wa…

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## [How to know the status available in a node?](https://discourse.nodered.org/t/how-to-know-the-status-available-in-a-node/69703)

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**Author:** [@vra](https://discourse.nodered.org/u/vra)\
**Replies:** 3\
**Last updated:** [28 October 2022 11:09 UTC](https://discourse.nodered.org/t/how-to-know-the-status-available-in-a-node/69703 "2022-10-28T11:09:53Z")

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Hi all, how are you? I've seen that several nodes has status messages the usually are diplayed under its respcective node but, I need to know what status has a node and what they means, For example, the modbus-getter n…

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## [How to connect a ttl to rs485 generic adapter with a raspberry pi 4 and node red (modbus)](https://discourse.nodered.org/t/how-to-connect-a-ttl-to-rs485-generic-adapter-with-a-raspberry-pi-4-and-node-red-modbus/69702)

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**Author:** [@vra](https://discourse.nodered.org/u/vra)\
**Replies:** 3\
**Last updated:** [28 October 2022 11:06 UTC](https://discourse.nodered.org/t/how-to-connect-a-ttl-to-rs485-generic-adapter-with-a-raspberry-pi-4-and-node-red-modbus/69702 "2022-10-28T11:06:41Z")

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Hi all, how are you? I'm trying to connect a raspberry pi to a motogenerator controller through rs485 using a generic ttl to rs485 converter, this converter has 4 input pins on the ttl side: DE, RE, DI and RO, DE and RE…

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## [Orphaned directory?](https://discourse.nodered.org/t/orphaned-directory/69716)

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**Author:** [@Paul-Reed](https://discourse.nodered.org/u/Paul-Reed)\
**Replies:** 2\
**Last updated:** [28 October 2022 09:26 UTC](https://discourse.nodered.org/t/orphaned-directory/69716 "2022-10-28T09:26:16Z")

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In my node-RED user directory, I have a lib directory, which contains a empty flows directory. It contains no files, and not sure of it's purpose. Is it some garbage that I've accumulated over the years, something that…

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## [Whether the ".config.json" file has been deprecated?](https://discourse.nodered.org/t/whether-the-config-json-file-has-been-deprecated/69712)

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**Author:** [@Dovahkiin8625](https://discourse.nodered.org/u/Dovahkiin8625)\
**Replies:** 1\
**Last updated:** [28 October 2022 08:23 UTC](https://discourse.nodered.org/t/whether-the-config-json-file-has-been-deprecated/69712 "2022-10-28T08:23:35Z")

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I saw the following code in \\node-red\\packages\\node\_modules\\@node-red\\runtime\\lib\\storage\\localfilesystem\\settings.js, Code comments shows the .config.json file has been removed in 1.3+ . #31 const nodesFilename =…

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## [Simple button / circle / square with value & colour change on dashboard](https://discourse.nodered.org/t/simple-button-circle-square-with-value-colour-change-on-dashboard/69699)

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**Author:** [@antsals](https://discourse.nodered.org/u/antsals)\
**Replies:** 1\
**Last updated:** [28 October 2022 07:33 UTC](https://discourse.nodered.org/t/simple-button-circle-square-with-value-colour-change-on-dashboard/69699 "2022-10-28T07:33:52Z")

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I know this is going to be super simple but after some help. I want to create a button / circle that has a payload value in eg temperatures and based on some greater than, less than rules I want to change its colour. A…

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## [Anyone use the node-red-contrib-unifi node?](https://discourse.nodered.org/t/anyone-use-the-node-red-contrib-unifi-node/69440)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 4\
**Last updated:** [28 October 2022 07:57 UTC](https://discourse.nodered.org/t/anyone-use-the-node-red-contrib-unifi-node/69440 "2022-10-28T07:57:33Z")

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I've just got myself a Ubiquiti EDGE router. (Unifi family) Can this node control it? I am wanting to know if I can enable/disable devices on my network from being able to connect to the internet. Kind of like Parent…

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## [MSSQL-PLUS node will not let the flow to do anything](https://discourse.nodered.org/t/mssql-plus-node-will-not-let-the-flow-to-do-anything/69683)

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**Author:** [@KevinPamu](https://discourse.nodered.org/u/KevinPamu)\
**Replies:** 4\
**Last updated:** [28 October 2022 06:34 UTC](https://discourse.nodered.org/t/mssql-plus-node-will-not-let-the-flow-to-do-anything/69683 "2022-10-28T06:34:38Z")

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I had this flow running on a windows machine for quiet sometime now. The machine I was running this on crashed and I had a copy of the flows I was using. When I put everything back, the version of node-red is newer but …

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## [Problem with function node analysing OSC](https://discourse.nodered.org/t/problem-with-function-node-analysing-osc/69690)

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**Author:** [@jhoepffner](https://discourse.nodered.org/u/jhoepffner)\
**Replies:** 6\
**Last updated:** [28 October 2022 06:31 UTC](https://discourse.nodered.org/t/problem-with-function-node-analysing-osc/69690 "2022-10-28T06:31:33Z")

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Hello, I am a newby with Node-Red. I search to implement a simple function. Info is coming from TouchDesigner through OSC (udp) as: {"address":"/videoShow","args":0} I want to change property of group with args (two…

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## [Cycle time calculation](https://discourse.nodered.org/t/cycle-time-calculation/69227)

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**Author:** [@Vik](https://discourse.nodered.org/u/Vik)\
**Replies:** 1\
**Last updated:** [28 October 2022 05:47 UTC](https://discourse.nodered.org/t/cycle-time-calculation/69227 "2022-10-28T05:47:12Z")

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@Frida @Steve-Mcl Continuing the discussion from Flow to get output from a logical sequence of events: I am working on this flow to get the duration of each state. I need to get: A) the duration when D2 is 1, B) t…

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## [How to make flow wait for response of actionable notification / no retrigger](https://discourse.nodered.org/t/how-to-make-flow-wait-for-response-of-actionable-notification-no-retrigger/69465)

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**Author:** [@plimplamm](https://discourse.nodered.org/u/plimplamm)\
**Replies:** 4\
**Last updated:** [28 October 2022 02:48 UTC](https://discourse.nodered.org/t/how-to-make-flow-wait-for-response-of-actionable-notification-no-retrigger/69465 "2022-10-28T02:48:40Z")

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Hi everyone. I have a flow that sends out an actionable notification (iOS) to ask whether I want to start the washing machine when solar production is up and consumption is down. Currently, the flow retriggers and keeps…

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## [Subflow: errors not being caught by catch node](https://discourse.nodered.org/t/subflow-errors-not-being-caught-by-catch-node/69403)

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**Author:** [@Matt.L](https://discourse.nodered.org/u/Matt.L)\
**Replies:** 8\
**Last updated:** [27 October 2022 23:46 UTC](https://discourse.nodered.org/t/subflow-errors-not-being-caught-by-catch-node/69403 "2022-10-27T23:46:20Z")

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This is a subflow I put together to make it easier for me to log data to google sheets. I can share more if anyone is interested in what's going on here. The problem I'm trying to debug is why "append catch" node is …

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## [Help Needed svg ui not appearing on dashboard](https://discourse.nodered.org/t/help-needed-svg-ui-not-appearing-on-dashboard/69684)

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**Author:** [@Hkhalilj](https://discourse.nodered.org/u/Hkhalilj)\
**Replies:** 3\
**Last updated:** [27 October 2022 21:55 UTC](https://discourse.nodered.org/t/help-needed-svg-ui-not-appearing-on-dashboard/69684 "2022-10-27T21:55:53Z")

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its been couple of months since i started using node red,every thing is going smoothly except for svg UI it is not appearing in dashboard, kindly help! Welcome to Node-RED =================== 27 Oct 22:53:36 - \[info\]…

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## [Getting bigger font](https://discourse.nodered.org/t/getting-bigger-font/229)

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**Author:** [@mammoet](https://discourse.nodered.org/u/mammoet)\
**Replies:** 25\
**Last updated:** [27 October 2022 21:14 UTC](https://discourse.nodered.org/t/getting-bigger-font/229 "2022-10-27T21:14:32Z")

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anyone knows how i can get a larger font of text UI

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## [Client network socket disconnected before secure TLS connection was established](https://discourse.nodered.org/t/client-network-socket-disconnected-before-secure-tls-connection-was-established/69581)

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**Author:** [@fabiobeoni](https://discourse.nodered.org/u/fabiobeoni)\
**Replies:** 5\
**Last updated:** [27 October 2022 18:46 UTC](https://discourse.nodered.org/t/client-network-socket-disconnected-before-secure-tls-connection-was-established/69581 "2022-10-27T18:46:19Z")

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Hi, I am experiencing the error message Client network socket disconnected before secure TLS connection was established, when I open the Editor UI (okay) and I click on "Sign In" button (error). I run nodered as follow…

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## [How to sum 2 saved context values](https://discourse.nodered.org/t/how-to-sum-2-saved-context-values/69430)

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**Author:** [@Walt\_Dod](https://discourse.nodered.org/u/Walt_Dod)\
**Replies:** 22\
**Last updated:** [27 October 2022 17:56 UTC](https://discourse.nodered.org/t/how-to-sum-2-saved-context-values/69430 "2022-10-27T17:56:21Z")

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Hi Paul, If I may ask, can you give me some hint or a link about the best way to add dynamically the 2 stored kWh flow values ? Regards, W. Envoyé: samedi 22 octobre 2022 à 10:29

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## [URL problem with SSL certificate on CentOS7](https://discourse.nodered.org/t/url-problem-with-ssl-certificate-on-centos7/69569)

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**Author:** [@Fabien1](https://discourse.nodered.org/u/Fabien1)\
**Replies:** 17\
**Last updated:** [27 October 2022 16:54 UTC](https://discourse.nodered.org/t/url-problem-with-ssl-certificate-on-centos7/69569 "2022-10-27T16:54:52Z")

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Hello, We've been working on data acquisition with Node-RED on this website : https://rucheconnectee.mc. The GNU/Linux OS used is CentOS7. I had a self-signed SSL certificate to encrypt the website, but I had security…

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## [Unable to hide column in node-red-node-ui-table](https://discourse.nodered.org/t/unable-to-hide-column-in-node-red-node-ui-table/69661)

<div class="topic-metadata">

**Author:** [@fjorge](https://discourse.nodered.org/u/fjorge)\
**Replies:** 6\
**Last updated:** [27 October 2022 16:08 UTC](https://discourse.nodered.org/t/unable-to-hide-column-in-node-red-node-ui-table/69661 "2022-10-27T16:08:23Z")

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Hello, I have the following flow: \[ { "id": "ef64e5df.b58d9", "type": "tab", "label": "Flow 3", "disabled": false, "info": "" }, { "id": "2ada6432.b9daa4", …

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