# Latest **URL:** https://discourse.nodered.org/latest.md?page=1294 [Latest](https://discourse.nodered.org/latest.md) · [Categories](https://discourse.nodered.org/categories.md) · [Tags](https://discourse.nodered.org/tags.md) **Page:** 1295 --- ## [Best way to collect, store and retrieve a small (10-25) set of sensor values](https://discourse.nodered.org/t/best-way-to-collect-store-and-retrieve-a-small-10-25-set-of-sensor-values/9827)
**Author:** [@hominidae](https://discourse.nodered.org/u/hominidae)\ **Replies:** 11\ **Last updated:** [9 April 2019 13:16 UTC](https://discourse.nodered.org/t/best-way-to-collect-store-and-retrieve-a-small-10-25-set-of-sensor-values/9827 "2019-04-09T13:16:57Z")
Hi Folks, for my project I need to be able to go back in time and access a small set of previously collected senor data values. The set is quite small, about 10 - 25 values, The values are collected over a period of t… --- ## [How to stop one node?](https://discourse.nodered.org/t/how-to-stop-one-node/9931)
**Author:** [@Gnork](https://discourse.nodered.org/u/Gnork)\ **Replies:** 1\ **Last updated:** [9 April 2019 13:15 UTC](https://discourse.nodered.org/t/how-to-stop-one-node/9931 "2019-04-09T13:15:40Z")
Hello! When I click the deploy button for modified nodes, it writes “Stopping modified nodes” and “Starting modified nodes” in the terminal. Can I do this "stop/start" manually for any node? --- ## [debugging of Dashboard Widget](https://discourse.nodered.org/t/debugging-of-dashboard-widget/9924)
**Author:** [@lacaca](https://discourse.nodered.org/u/lacaca)\ **Replies:** 2\ **Last updated:** [9 April 2019 13:02 UTC](https://discourse.nodered.org/t/debugging-of-dashboard-widget/9924 "2019-04-09T13:02:19Z")
I am trying to do some simple debugging of the client side of a Dashboard Widget node-red-contrib-ui-led . I just want to be able to follow the flow to see if execution is getting where it should, so something like aler… --- ## [Update to the newst version](https://discourse.nodered.org/t/update-to-the-newst-version/9947)
**Author:** [@JokinSegu](https://discourse.nodered.org/u/JokinSegu)\ **Replies:** 1\ **Last updated:** [9 April 2019 12:41 UTC](https://discourse.nodered.org/t/update-to-the-newst-version/9947 "2019-04-09T12:41:48Z")
Can I update the newst version of Node-Red if I am using it from the IOT2000? How can I do it? --- ## [Stuck splitting messages](https://discourse.nodered.org/t/stuck-splitting-messages/9847)
**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\ **Replies:** 11\ **Last updated:** [9 April 2019 11:44 UTC](https://discourse.nodered.org/t/stuck-splitting-messages/9847 "2019-04-09T11:44:29Z")
I am using bigtimer and looking at output #2. example: {"payload":1,"reference":"DAYTIME:SUNRISE:SUNSET:744","topic":"status","state":"ON Auto","time":"05hrs 21mins","name":"Day Start/End","start":372,"end":1065,"dusk"… --- ## [Node-red update screen from CLI](https://discourse.nodered.org/t/node-red-update-screen-from-cli/9917)
**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\ **Replies:** 3\ **Last updated:** [9 April 2019 10:48 UTC](https://discourse.nodered.org/t/node-red-update-screen-from-cli/9917 "2019-04-09T10:48:22Z")
Most of my other machines when updating look nice. When updating one the screen doesn't have "tick" as it is going through the stages, but this: It is headless machine, but I am sure I set up the config stuff correctl… --- ## [Rolling code for opening gate?](https://discourse.nodered.org/t/rolling-code-for-opening-gate/9906)
**Author:** [@SuperNinja](https://discourse.nodered.org/u/SuperNinja)\ **Replies:** 2\ **Last updated:** [9 April 2019 07:43 UTC](https://discourse.nodered.org/t/rolling-code-for-opening-gate/9906 "2019-04-09T07:43:25Z")
Hello everyone, I try to transmit / receive a coded message but that can not be reproduced, to open my gate, garage, door etc ... NodeRed runs on my RPI and runs my house. A 433MHz transceiver is connected to its seria… --- ## [Varible times and variable results](https://discourse.nodered.org/t/varible-times-and-variable-results/9914)
**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\ **Replies:** 1\ **Last updated:** [9 April 2019 02:50 UTC](https://discourse.nodered.org/t/varible-times-and-variable-results/9914 "2019-04-09T02:50:32Z")
Go get a cup of coffee, and try to relax. This is a doozy. Back back story: I have one RPI which is my MAIN machine which receives what I can best call telemetry fom the other machines. If they are compatible, they s… --- ## [Raspberry pi 3 Model B node-red error](https://discourse.nodered.org/t/raspberry-pi-3-model-b-node-red-error/9894)
**Author:** [@Kwonsoyeong](https://discourse.nodered.org/u/Kwonsoyeong)\ **Replies:** 7\ **Last updated:** [9 April 2019 01:52 UTC](https://discourse.nodered.org/t/raspberry-pi-3-model-b-node-red-error/9894 "2019-04-09T01:52:01Z")
Hi Today, I want to use node-red and dashboard for Raspberry pi 3 Model B. I was only download node-js. And I am started node-red but I'm not saw palette menu. And I tried 'npm install node-red dashboard' but I saw … --- ## [SUB FLOWS - something is going on](https://discourse.nodered.org/t/sub-flows-something-is-going-on/9851)
**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\ **Replies:** 6\ **Last updated:** [9 April 2019 01:22 UTC](https://discourse.nodered.org/t/sub-flows-something-is-going-on/9851 "2019-04-09T01:22:44Z")
Hi again folks. Yet another problem has me stumped. I had/have messy flows for things and monitoring my network. One of the flows had a lot of nodes and a lot of repitative stuff. I got into the subflow mode and repl… --- ## [Can I change the color of a Node Red Compass](https://discourse.nodered.org/t/can-i-change-the-color-of-a-node-red-compass/9913)
**Author:** [@nassima100](https://discourse.nodered.org/u/nassima100)\ **Replies:** 1\ **Last updated:** [8 April 2019 23:41 UTC](https://discourse.nodered.org/t/can-i-change-the-color-of-a-node-red-compass/9913 "2019-04-08T23:41:52Z")
Hello, I'm trying to change the color of a compass depending of the received values, I inspected the code in the browser then added a template with \ path { color: #00900e; } \ but it filled other compo… --- ## [FTP node on NR? Could we possibly know if the file transfer was successful or not?](https://discourse.nodered.org/t/ftp-node-on-nr-could-we-possibly-know-if-the-file-transfer-was-successful-or-not/9737)
**Author:** [@KevinPamu](https://discourse.nodered.org/u/KevinPamu)\ **Replies:** 3\ **Last updated:** [8 April 2019 23:06 UTC](https://discourse.nodered.org/t/ftp-node-on-nr-could-we-possibly-know-if-the-file-transfer-was-successful-or-not/9737 "2019-04-08T23:06:13Z")
I am running node-red on a windows 10 machine. I was wondering if anybody has tried SFTP on a windows machine and if there was anyway to check if the transfer of a file was successful or not? If you have tried the SFTP, … --- ## [FTP node, activity log? is that something that is available?](https://discourse.nodered.org/t/ftp-node-activity-log-is-that-something-that-is-available/9816)
**Author:** [@KevinPamu](https://discourse.nodered.org/u/KevinPamu)\ **Replies:** 6\ **Last updated:** [8 April 2019 23:05 UTC](https://discourse.nodered.org/t/ftp-node-activity-log-is-that-something-that-is-available/9816 "2019-04-08T23:05:44Z")
I was trying to use the FTP node and check if there was a way I can track if the file has been sent or if it failed. Is this a possibility? Thanks in advance. --- ## [Anyone using NodeRed as JSON API transformation tool?](https://discourse.nodered.org/t/anyone-using-nodered-as-json-api-transformation-tool/9821)
**Author:** [@tony-shannon](https://discourse.nodered.org/u/tony-shannon)\ **Replies:** 8\ **Last updated:** [8 April 2019 22:12 UTC](https://discourse.nodered.org/t/anyone-using-nodered-as-json-api-transformation-tool/9821 "2019-04-08T22:12:45Z")
Hi Kudos to the NodeRED team for their innovative thinking, this appears to be tech with great potential. Question please re anyone using NodeRED for JSON API transformation, eg with JSONata? See related issue here; h… --- ## [Can I dynamically change the background color of a switch?](https://discourse.nodered.org/t/can-i-dynamically-change-the-background-color-of-a-switch/9886)
**Author:** [@SteveMann](https://discourse.nodered.org/u/SteveMann)\ **Replies:** 2\ **Last updated:** [8 April 2019 22:03 UTC](https://discourse.nodered.org/t/can-i-dynamically-change-the-background-color-of-a-switch/9886 "2019-04-08T22:03:41Z")
Is there a way to change a switch or button background color from inside the flow? For example, if I click on a button with a green background, I want to turn it red. --- ## [Compare values of two columns of a large excel file using Node-Red](https://discourse.nodered.org/t/compare-values-of-two-columns-of-a-large-excel-file-using-node-red/9862)
**Author:** [@aryans14](https://discourse.nodered.org/u/aryans14)\ **Replies:** 4\ **Last updated:** [8 April 2019 21:40 UTC](https://discourse.nodered.org/t/compare-values-of-two-columns-of-a-large-excel-file-using-node-red/9862 "2019-04-08T21:40:15Z")
Hello, I have played around Node-Red for getting excel file from the disk and displaying its values in the HTTP response object. The source Excel file contained only 10 to 15 records. I have an excel file which contains… --- ## [MQTT messages - feasability question](https://discourse.nodered.org/t/mqtt-messages-feasability-question/9846)
**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\ **Replies:** 14\ **Last updated:** [8 April 2019 21:34 UTC](https://discourse.nodered.org/t/mqtt-messages-feasability-question/9846 "2019-04-08T21:34:11Z")
(I know: stupid question. But here goes.) I'm double checking myself as I am still not 100% sure. I have (or will have) devices connected which will want to know the time. They may not need to know it every second … --- ## [Modbus serial port msg : PortNotOpenError "PortNotOpenError: Port Not Open"](https://discourse.nodered.org/t/modbus-serial-port-msg-portnotopenerror-portnotopenerror-port-not-open/9899)
**Author:** [@hathemi](https://discourse.nodered.org/u/hathemi)\ **Replies:** 8\ **Last updated:** [8 April 2019 21:23 UTC](https://discourse.nodered.org/t/modbus-serial-port-msg-portnotopenerror-portnotopenerror-port-not-open/9899 "2019-04-08T21:23:44Z")
i'am trying to read data using serial port, but i always get this error "msg : PortNotOpenError "PortNotOpenError: Port Not Open" ". How can i fix it ?? \[{"id":"fadac826.dbf338","type":"modbus-flex-getter","z":"ab90743… --- ## [\[A bit Off Topic\] Grafana 6.1.0 on mobile device](https://discourse.nodered.org/t/a-bit-off-topic-grafana-6-1-0-on-mobile-device/9780)
**Author:** [@Colin](https://discourse.nodered.org/u/Colin)\ **Replies:** 14\ **Last updated:** [8 April 2019 21:20 UTC](https://discourse.nodered.org/t/a-bit-off-topic-grafana-6-1-0-on-mobile-device/9780 "2019-04-08T21:20:22Z")
Does anyone use Grafana on a mobile device? If so are you planning to upgrade to v6.1.0 which has just been released? I have done that and have the problem that in order to hide the side menu one now has to use the TV … --- ## [Stop NodeRed from sending / processing when re-deployed](https://discourse.nodered.org/t/stop-nodered-from-sending-processing-when-re-deployed/9882)
**Author:** [@Inso](https://discourse.nodered.org/u/Inso)\ **Replies:** 2\ **Last updated:** [8 April 2019 20:45 UTC](https://discourse.nodered.org/t/stop-nodered-from-sending-processing-when-re-deployed/9882 "2019-04-08T20:45:35Z")
Hi, I have a few Smart Home one time events using NodeRed, f.e. a sleep timer, light toggle and so on. Problem is, as soon as I re-deploy after changing some stuff, all messages which have been incoming are re-processe… --- ## [Template call javascript](https://discourse.nodered.org/t/template-call-javascript/9694)
**Author:** [@accca](https://discourse.nodered.org/u/accca)\ **Replies:** 5\ **Last updated:** [8 April 2019 20:43 UTC](https://discourse.nodered.org/t/template-call-javascript/9694 "2019-04-08T20:43:29Z")
Hi, I have this situation: The template node contains a list of link (a href). I want to trigger the same function, but with different parameters. Example: Link 1: call function('1') Link 2: call function('2') "fu… --- ## [Callback function to handle http request](https://discourse.nodered.org/t/callback-function-to-handle-http-request/9686)
**Author:** [@Simo219h](https://discourse.nodered.org/u/Simo219h)\ **Replies:** 1\ **Last updated:** [8 April 2019 20:31 UTC](https://discourse.nodered.org/t/callback-function-to-handle-http-request/9686 "2019-04-08T20:31:24Z")
Hi, I am writing a node, which purpose is to forward its input via a HTTP POST request. I use the node module 'better-sqlite3' to sample the input data, with the following columns: ID, timestamp, feedname, value, upl… --- ## [Help with JSONata grouping](https://discourse.nodered.org/t/help-with-jsonata-grouping/9629)
**Author:** [@bakman2](https://discourse.nodered.org/u/bakman2)\ **Replies:** 2\ **Last updated:** [8 April 2019 16:38 UTC](https://discourse.nodered.org/t/help-with-jsonata-grouping/9629 "2019-04-08T16:38:28Z")
This is not necessarily related to node-red, but the JSONata knowledge is here. I have the following object: { "dates": \[{ "datetime": "2018-06-01 08:14:00" }, { "datetime": "2018-06-01 08:16:00" }, { … --- ## [UI template led not working anymore](https://discourse.nodered.org/t/ui-template-led-not-working-anymore/9887)
**Author:** [@jupiter8](https://discourse.nodered.org/u/jupiter8)\ **Replies:** 3\ **Last updated:** [8 April 2019 14:04 UTC](https://discourse.nodered.org/t/ui-template-led-not-working-anymore/9887 "2019-04-08T14:04:11Z")
I'm using these led without any problems for a while and since 19.5 the script doesn't respond anymore to payloads, and this on two separate systems. Is something deprecated lately in this code? \ \ … --- ## [Severe Lag with flows](https://discourse.nodered.org/t/severe-lag-with-flows/9883)
**Author:** [@Tuckie](https://discourse.nodered.org/u/Tuckie)\ **Replies:** 2\ **Last updated:** [8 April 2019 10:16 UTC](https://discourse.nodered.org/t/severe-lag-with-flows/9883 "2019-04-08T10:16:13Z")
Currently running a single box docker install of: home assistant 0.91.1 node red 0.20.5 with node-red-contrib-home-assistant-websocket 0.10.2 I've been running the same setup for a few months, when I suddenly started … --- ## [Refresh Dashboard URL](https://discourse.nodered.org/t/refresh-dashboard-url/9814)
**Author:** [@hebergeweb](https://discourse.nodered.org/u/hebergeweb)\ **Replies:** 13\ **Last updated:** [8 April 2019 10:13 UTC](https://discourse.nodered.org/t/refresh-dashboard-url/9814 "2019-04-08T10:13:22Z")
Hi, when click on the menu, how to refresh the tab (url page) before displaying? --- ## [Made a real ballsup, broke my NR](https://discourse.nodered.org/t/made-a-real-ballsup-broke-my-nr/9885)
**Author:** [@kenkoknz](https://discourse.nodered.org/u/kenkoknz)\ **Replies:** 5\ **Last updated:** [8 April 2019 09:20 UTC](https://discourse.nodered.org/t/made-a-real-ballsup-broke-my-nr/9885 "2019-04-08T09:20:58Z")
Hi All, HW:pi NR version: v0.20.5 I was doing a new install on pi to boot on usb stick instead of sd card. Successfully installed, I was going to test it out for a few days before transferring it to a usb ssd and have… --- ## [Bluemix s7 node](https://discourse.nodered.org/t/bluemix-s7-node/9893)
**Author:** [@JokinSegu](https://discourse.nodered.org/u/JokinSegu)\ **Replies:** 2\ **Last updated:** [8 April 2019 08:55 UTC](https://discourse.nodered.org/t/bluemix-s7-node/9893 "2019-04-08T08:55:39Z")
I am working at bluemix cloud now and I can´t connect the PLC 1500 to the node red of bluemix,isn´t possble to connect from cloud? --- ## [JavaScript equivalent of node-daemon?](https://discourse.nodered.org/t/javascript-equivalent-of-node-daemon/9879)
**Author:** [@SirHumphreyAppleby](https://discourse.nodered.org/u/SirHumphreyAppleby)\ **Replies:** 4\ **Last updated:** [8 April 2019 07:29 UTC](https://discourse.nodered.org/t/javascript-equivalent-of-node-daemon/9879 "2019-04-08T07:29:55Z")
Is there an equivalent to node-daemon that allows a persistent JavaScript function, where messages to be read and processed in a loop? Looking at the daemon source, it appears the input functionality is provided by node… --- ## [MSSQL Windows Autentication](https://discourse.nodered.org/t/mssql-windows-autentication/9779)
**Author:** [@Mario](https://discourse.nodered.org/u/Mario)\ **Replies:** 3\ **Last updated:** [8 April 2019 07:16 UTC](https://discourse.nodered.org/t/mssql-windows-autentication/9779 "2019-04-08T07:16:41Z")
Hallo, First of all...sorry for my bad english but i will try my best. I‘ll try to commit on a MSSQL Database. But was i found is with Server Autentication. But i Need Windows Autentication. Is there an example of what… [Previous page](https://discourse.nodered.org/latest.md?page=1293) [Next page](https://discourse.nodered.org/latest.md?page=1295)