# Latest

**URL:** https://discourse.nodered.org/latest.md?page=893

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

**Page:** 894

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## [Dashboard Indicator](https://discourse.nodered.org/t/dashboard-indicator/40376)

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**Author:** [@HZB](https://discourse.nodered.org/u/HZB)\
**Replies:** 5\
**Last updated:** [4 February 2021 20:36 UTC](https://discourse.nodered.org/t/dashboard-indicator/40376 "2021-02-04T20:36:43Z")

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Hi everyone, I am looking for this Node in palette library, but couldn't find it. Do anyone know bout this?

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## [BCC function node help](https://discourse.nodered.org/t/bcc-function-node-help/40399)

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**Author:** [@New2Node](https://discourse.nodered.org/u/New2Node)\
**Replies:** 0\
**Last updated:** [4 February 2021 20:02 UTC](https://discourse.nodered.org/t/bcc-function-node-help/40399 "2021-02-04T20:02:29Z")

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Hi, I’m looking for a function that will calculate a BCC character. I’ve seen some examples on the forum but nothing which gives me what I need. I’m talking to a serial device which outputs binary buffers. The descript…

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## [Opening node-red](https://discourse.nodered.org/t/opening-node-red/39665)

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**Author:** [@Mas](https://discourse.nodered.org/u/Mas)\
**Replies:** 54\
**Last updated:** [4 February 2021 18:28 UTC](https://discourse.nodered.org/t/opening-node-red/39665 "2021-02-04T18:28:46Z")

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Hi, when I want to open node-red, I faced an error. Can you help me to resolve it?? TypeError: Cannot read property 'forEach' of undefined at Object.addModule (C:\\Users\\Admin\\AppData\\Roaming\\npm\\node\_modules\\node-red\\n…

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## [WhatsApp integration](https://discourse.nodered.org/t/whatsapp-integration/40393)

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**Author:** [@henrycosta05](https://discourse.nodered.org/u/henrycosta05)\
**Replies:** 2\
**Last updated:** [4 February 2021 18:24 UTC](https://discourse.nodered.org/t/whatsapp-integration/40393 "2021-02-04T18:24:14Z")

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Hi guys, I'd like a suggestion to integrate node-red to whatsapp broker, any suggestions will be great. Here at Brazil whatsapp is the social media with more users. I've already tested node-red with telegram successfull…

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## [\[MSSQL\] "Eproto" error after updating nodejs and node-red](https://discourse.nodered.org/t/mssql-eproto-error-after-updating-nodejs-and-node-red/40323)

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**Author:** [@Nxito](https://discourse.nodered.org/u/Nxito)\
**Replies:** 10\
**Last updated:** [4 February 2021 17:37 UTC](https://discourse.nodered.org/t/mssql-eproto-error-after-updating-nodejs-and-node-red/40323 "2021-02-04T17:37:35Z")

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I have recently updated node-red to 1.2.7 and nodejs to 14.15.4, and while I was testing it I have seen that the sql nodes I use (node-red-contrib-mssql-plus) give me an error. Not long ago I published if there could be…

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## [Create UI switches dynamically](https://discourse.nodered.org/t/create-ui-switches-dynamically/40378)

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**Author:** [@fmarzocca](https://discourse.nodered.org/u/fmarzocca)\
**Replies:** 3\
**Last updated:** [4 February 2021 17:29 UTC](https://discourse.nodered.org/t/create-ui-switches-dynamically/40378 "2021-02-04T17:29:00Z")

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I have a list of devices (id and name) to show as switches in the dashboard. Can I create the switches dynamically, from a function, so that I don't have to build each of them in the flow manually?

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## [NodeRED Delivering Twilio SMS with Inference Video](https://discourse.nodered.org/t/nodered-delivering-twilio-sms-with-inference-video/40392)

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**Author:** [@goto50](https://discourse.nodered.org/u/goto50)\
**Replies:** 0\
**Last updated:** [4 February 2021 17:14 UTC](https://discourse.nodered.org/t/nodered-delivering-twilio-sms-with-inference-video/40392 "2021-02-04T17:14:55Z")

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ADLINK and Intel hosted a great live demo using ADLINK Edge Platform, OpenVINO and NodeRED to automate SMS when objects were detected, Great demo of how easy using vision as a sensor can be

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## [Using Node-Red for Enterprise Software](https://discourse.nodered.org/t/using-node-red-for-enterprise-software/40247)

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**Author:** [@monkeydust](https://discourse.nodered.org/u/monkeydust)\
**Replies:** 15\
**Last updated:** [4 February 2021 16:42 UTC](https://discourse.nodered.org/t/using-node-red-for-enterprise-software/40247 "2021-02-04T16:42:14Z")

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Hi, Interested to know of any real world examples of people / firms using NR as the backbone to their No/Low Code Platform? This space is very thematic at the moment and a number of firms (e.g. n8n, Tray) have gone dow…

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## [UI switch behaviour](https://discourse.nodered.org/t/ui-switch-behaviour/40384)

<div class="topic-metadata">

**Author:** [@fmarzocca](https://discourse.nodered.org/u/fmarzocca)\
**Replies:** 4\
**Last updated:** [4 February 2021 16:26 UTC](https://discourse.nodered.org/t/ui-switch-behaviour/40384 "2021-02-04T16:26:52Z")

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I have this flow. The UI switch is set by a signal from the LAN, but I also need to control it manually from the dashboard without generating a "loop", so I thought to include a "gate" function, but it is not working. Th…

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## [Reading DS3231 RTC in Node Red](https://discourse.nodered.org/t/reading-ds3231-rtc-in-node-red/40133)

<div class="topic-metadata">

**Author:** [@wa9mvz](https://discourse.nodered.org/u/wa9mvz)\
**Replies:** 9\
**Last updated:** [4 February 2021 16:19 UTC](https://discourse.nodered.org/t/reading-ds3231-rtc-in-node-red/40133 "2021-02-04T16:19:45Z")

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Is there a simple way to input time to display on the dashboard from the DS3231 RTC module? Using the I2C IN node, I can see and read what looks like seconds and minutes data using the 00 and 01 commands in those nodes. …

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## [Error: node not deploy](https://discourse.nodered.org/t/error-node-not-deploy/40382)

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**Author:** [@pietrofduarte](https://discourse.nodered.org/u/pietrofduarte)\
**Replies:** 0\
**Last updated:** [4 February 2021 14:59 UTC](https://discourse.nodered.org/t/error-node-not-deploy/40382 "2021-02-04T14:59:43Z")

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Hello guys any body use Node-Red with docker ? Let me explain the aplication: I use docker compose and set the network, ip (fixed) and volume (outside) using the docker-compose. After run docker compose, I run to insid…

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## [How to Plot line chart of real time data](https://discourse.nodered.org/t/how-to-plot-line-chart-of-real-time-data/40167)

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**Author:** [@kajal](https://discourse.nodered.org/u/kajal)\
**Replies:** 20\
**Last updated:** [4 February 2021 13:59 UTC](https://discourse.nodered.org/t/how-to-plot-line-chart-of-real-time-data/40167 "2021-02-04T13:59:57Z")

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I am new to node red and i am trying to plot line chart of real time data, but nothing is display on chart My flow. \[{"id":"5c0f3e4b.7b304","type":"tab","label":"Vibration\_Dashboard","disabled":false,"info":""},{"id":"…

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## [Units Testing on a Node](https://discourse.nodered.org/t/units-testing-on-a-node/40359)

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**Author:** [@jeevan900929](https://discourse.nodered.org/u/jeevan900929)\
**Replies:** 6\
**Last updated:** [4 February 2021 13:17 UTC](https://discourse.nodered.org/t/units-testing-on-a-node/40359 "2021-02-04T13:17:29Z")

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Hi, How does one set a configuration node values in a unit test? Thank you

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## [Regex help or idéas](https://discourse.nodered.org/t/regex-help-or-ideas/40337)

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**Author:** [@niclas.w82](https://discourse.nodered.org/u/niclas.w82)\
**Replies:** 9\
**Last updated:** [4 February 2021 12:32 UTC](https://discourse.nodered.org/t/regex-help-or-ideas/40337 "2021-02-04T12:32:57Z")

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Hi! I have tried to find a smart solution to filter out some values. Im intressed In controller.door.motorlock.locked the only thing that changes is locked so can I use controller.door.motorlock as a condition? The seco…

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## [Count 10 minutes rainfall over 24 hours (aggregation node)](https://discourse.nodered.org/t/count-10-minutes-rainfall-over-24-hours-aggregation-node/40317)

<div class="topic-metadata">

**Author:** [@HaVi](https://discourse.nodered.org/u/HaVi)\
**Replies:** 8\
**Last updated:** [4 February 2021 12:02 UTC](https://discourse.nodered.org/t/count-10-minutes-rainfall-over-24-hours-aggregation-node/40317 "2021-02-04T12:02:31Z")

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My rain sensor measures rainfall in a 10 minute interval. The number of millimeters is sent every 10 minutes via LoRaWan (TTN) to NodeRED in the format payload.neerslag (like 0.55 mm). I want to display what the precipi…

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## [Problems with SPLIT node and strings](https://discourse.nodered.org/t/problems-with-split-node-and-strings/40373)

<div class="topic-metadata">

**Author:** [@projecttwo](https://discourse.nodered.org/u/projecttwo)\
**Replies:** 1\
**Last updated:** [4 February 2021 11:35 UTC](https://discourse.nodered.org/t/problems-with-split-node-and-strings/40373 "2021-02-04T11:35:10Z")

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Hey all, we want to cut a string with the "SPLIT" node... thats works very well but we got in every case two messages... one with the correct (splitted) string, but another with empty text... the original string is "1…

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## [Memory leak, none of the existing answers help](https://discourse.nodered.org/t/memory-leak-none-of-the-existing-answers-help/40361)

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**Author:** [@prerna](https://discourse.nodered.org/u/prerna)\
**Replies:** 12\
**Last updated:** [4 February 2021 11:21 UTC](https://discourse.nodered.org/t/memory-leak-none-of-the-existing-answers-help/40361 "2021-02-04T11:21:41Z")

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I have been using node-red for a basic flow-builder use-case. For that purpose, I have hidden all the nodes I don't need and created 4 extra nodes. It had been working well for the past 3 weeks until this week whenever I…

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## [Help with linear chart x-axis behavior](https://discourse.nodered.org/t/help-with-linear-chart-x-axis-behavior/40336)

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**Author:** [@garrenr14](https://discourse.nodered.org/u/garrenr14)\
**Replies:** 13\
**Last updated:** [4 February 2021 10:27 UTC](https://discourse.nodered.org/t/help-with-linear-chart-x-axis-behavior/40336 "2021-02-04T10:27:45Z")

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Hello, I am trying to build a ui\_chart in Node-Red 1.2.6 and Dashboard 2.24.1 but I'm having troubles with the X-Axis scale. I'm only seeing the last ~2 hours of data appear in the X-axis, when the x-coordinates are pas…

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## [Node Button Event](https://discourse.nodered.org/t/node-button-event/40313)

<div class="topic-metadata">

**Author:** [@jeevan900929](https://discourse.nodered.org/u/jeevan900929)\
**Replies:** 6\
**Last updated:** [4 February 2021 10:19 UTC](https://discourse.nodered.org/t/node-button-event/40313 "2021-02-04T10:19:24Z")

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I have a node with a button that has an onClick event \<script type="text/javascript"\> RED.nodes.registerType('connect', { category: 'ringbeller', color: '#8d6b94', defaults: { nam…

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## [Node pm2 Autoboot Node palette missing unable to reinstall](https://discourse.nodered.org/t/node-pm2-autoboot-node-palette-missing-unable-to-reinstall/40218)

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**Author:** [@PainWorry](https://discourse.nodered.org/u/PainWorry)\
**Replies:** 5\
**Last updated:** [4 February 2021 10:05 UTC](https://discourse.nodered.org/t/node-pm2-autoboot-node-palette-missing-unable-to-reinstall/40218 "2021-02-04T10:05:00Z")

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My friend have just install pm2 to make node-red automaticaly start when it boot up https://nodered.org/docs/faq/starting-node-red-on-boot#2-determine-the-exact-location-of-the-node-red-command but then he've found…

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## [Rpi-keyboard node - observations](https://discourse.nodered.org/t/rpi-keyboard-node-observations/40358)

<div class="topic-metadata">

**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 3\
**Last updated:** [4 February 2021 09:12 UTC](https://discourse.nodered.org/t/rpi-keyboard-node-observations/40358 "2021-02-04T09:12:44Z")

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A while back I was asking how to detect key presses on a keyboard and was pointed to the node-red-node-pi-gpio set of nodes with a keyboard node. Ok, done. (This is a side-project and so wasn't receiving correct priori…

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## [How to pass context data into subflow using the](https://discourse.nodered.org/t/how-to-pass-context-data-into-subflow-using-the/40316)

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**Author:** [@sokkensoepje](https://discourse.nodered.org/u/sokkensoepje)\
**Replies:** 7\
**Last updated:** [4 February 2021 09:11 UTC](https://discourse.nodered.org/t/how-to-pass-context-data-into-subflow-using-the/40316 "2021-02-04T09:11:59Z")

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I've created a function to call some api's and return some data. All the function need is some input (in the message) and an API-key. The API-key is stored in the context data and is accessible in function nodes usinig c…

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## [Cannot ping out - Node Red on Windows 10](https://discourse.nodered.org/t/cannot-ping-out-node-red-on-windows-10/40340)

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**Author:** [@TexasNetworkEngineer](https://discourse.nodered.org/u/TexasNetworkEngineer)\
**Replies:** 5\
**Last updated:** [4 February 2021 07:34 UTC](https://discourse.nodered.org/t/cannot-ping-out-node-red-on-windows-10/40340 "2021-02-04T07:34:23Z")

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Hello Everyone, I have used node-red as a network engineer who works in automation. While I have used node-red on vendor hardware where it was pre-installed. I have not used in on windows 10. I am planning to install on…

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## [\[Announce\] new Raspberry Pi redPlc nodes](https://discourse.nodered.org/t/announce-new-raspberry-pi-redplc-nodes/40257)

<div class="topic-metadata">

**Author:** [@iiot2k](https://discourse.nodered.org/u/iiot2k)\
**Replies:** 6\
**Last updated:** [4 February 2021 07:00 UTC](https://discourse.nodered.org/t/announce-new-raspberry-pi-redplc-nodes/40257 "2021-02-04T07:00:45Z")

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## [Websocket Send, receive and flow back to send](https://discourse.nodered.org/t/websocket-send-receive-and-flow-back-to-send/40353)

<div class="topic-metadata">

**Author:** [@gene-code](https://discourse.nodered.org/u/gene-code)\
**Replies:** 0\
**Last updated:** [4 February 2021 04:34 UTC](https://discourse.nodered.org/t/websocket-send-receive-and-flow-back-to-send/40353 "2021-02-04T04:34:45Z")

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Hi, So my flow has 2 websocket nodes. A is sending and B is receiving. I am communicating continuously, I am able to send data to the A node, and when the server replies, I am able to get the data at B node. But, fro…

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## [How to send multi-part command to Tasmota?](https://discourse.nodered.org/t/how-to-send-multi-part-command-to-tasmota/40278)

<div class="topic-metadata">

**Author:** [@apricotfarm](https://discourse.nodered.org/u/apricotfarm)\
**Replies:** 2\
**Last updated:** [4 February 2021 01:01 UTC](https://discourse.nodered.org/t/how-to-send-multi-part-command-to-tasmota/40278 "2021-02-04T01:01:21Z")

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Can I send a multi-part command to a Tasmota device using MQTT? I want to set the TimeDST setting; typing directly into the Tasmota console, the command looks something like this: TimeDST 0,2,3,1,2,-240 ...easy enough,…

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## [Communication between Express App and nodered](https://discourse.nodered.org/t/communication-between-express-app-and-nodered/40308)

<div class="topic-metadata">

**Author:** [@freakent](https://discourse.nodered.org/u/freakent)\
**Replies:** 1\
**Last updated:** [4 February 2021 00:28 UTC](https://discourse.nodered.org/t/communication-between-express-app-and-nodered/40308 "2021-02-04T00:28:50Z")

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Hi noderedders, I have embedded nodered in an express application, as per the instructions here: https://nodered.org/docs/user-guide/runtime/embedding. My express application is part of an existing SDK implementation. …

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## [Using Node 15.7 or 15.8 with NR?](https://discourse.nodered.org/t/using-node-15-7-or-15-8-with-nr/40315)

<div class="topic-metadata">

**Author:** [@Nodi.Rubrum](https://discourse.nodered.org/u/Nodi.Rubrum)\
**Replies:** 3\
**Last updated:** [3 February 2021 22:42 UTC](https://discourse.nodered.org/t/using-node-15-7-or-15-8-with-nr/40315 "2021-02-03T22:42:54Z")

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Using Node 15.7 or 15.8 with NR? Anyone done this as yet?

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## [Node red stopped on IBM cloud](https://discourse.nodered.org/t/node-red-stopped-on-ibm-cloud/37437)

<div class="topic-metadata">

**Author:** [@mako](https://discourse.nodered.org/u/mako)\
**Replies:** 9\
**Last updated:** [3 February 2021 21:30 UTC](https://discourse.nodered.org/t/node-red-stopped-on-ibm-cloud/37437 "2021-02-03T21:30:44Z")

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Hi. I have some HTTP nodes setup on bluemix nodeRED to forward some basic messages to a MQTT broker. Today i noticed that the messages had stopped on December the 10th. i went to my bluemix account and node red was sto…

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## [Turn on ceiling fan](https://discourse.nodered.org/t/turn-on-ceiling-fan/39403)

<div class="topic-metadata">

**Author:** [@peejayw](https://discourse.nodered.org/u/peejayw)\
**Replies:** 3\
**Last updated:** [3 February 2021 21:21 UTC](https://discourse.nodered.org/t/turn-on-ceiling-fan/39403 "2021-02-03T21:21:22Z")

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I have a temperature sensor ar floor height and one at ceiling height. I want to use the difference in temperature to turn on a ceiling fan rather than an absolute temperature ie fan turns on when ceiling temp is 5° abov…

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