# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=268

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

**Page:** 269

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## [Getting started instructions for Android/Termux](https://discourse.nodered.org/t/getting-started-instructions-for-android-termux/73186)

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**Author:** [@JaySpencerAnderson](https://discourse.nodered.org/u/JaySpencerAnderson)\
**Replies:** 1\
**Last updated:** [4 January 2023 22:04 UTC](https://discourse.nodered.org/t/getting-started-instructions-for-android-termux/73186 "2023-01-04T22:04:41Z")

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The getting started instructions for installing Node-RED on Android (within TERMUX) specify the command "apt install coreutils nano nodejs". apt will work for the first two packages but not nodejs. To install nodejs, e…

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## [Wow, new layout!](https://discourse.nodered.org/t/wow-new-layout/73187)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 2\
**Last updated:** [4 January 2023 21:00 UTC](https://discourse.nodered.org/t/wow-new-layout/73187 "2023-01-04T21:00:47Z")

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I've been busy for a few days and not visited in the mean time. WOW! Interesting. I hope it helps with things. I'm still looking at it to work out all the stuff. (Only just got up) Happy new year folks.

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## [Tcp request node default behaviour changed from V2 to V3](https://discourse.nodered.org/t/tcp-request-node-default-behaviour-changed-from-v2-to-v3/73180)

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**Author:** [@sbollain](https://discourse.nodered.org/u/sbollain)\
**Replies:** 0\
**Last updated:** [4 January 2023 18:29 UTC](https://discourse.nodered.org/t/tcp-request-node-default-behaviour-changed-from-v2-to-v3/73180 "2023-01-04T18:29:18Z")

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I have just realized that in nodered version 3 there is a new option in the "tcp request" node: reattach delimiter. That option did no exist in nodered version 2, and in version 3 in unchecked by default, while the defau…

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## [Daterange picker](https://discourse.nodered.org/t/daterange-picker/73119)

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**Author:** [@Viktor](https://discourse.nodered.org/u/Viktor)\
**Replies:** 6\
**Last updated:** [4 January 2023 18:00 UTC](https://discourse.nodered.org/t/daterange-picker/73119 "2023-01-04T18:00:59Z")

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Hello, I have one question regarding the date range picker. I found how to use it in some topics on this forum and it works for me, but there is one bug in my flow. When I deploy the flow and go to the dashboard, the da…

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## [Messages losing data](https://discourse.nodered.org/t/messages-losing-data/73168)

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**Author:** [@Sprocket-N](https://discourse.nodered.org/u/Sprocket-N)\
**Replies:** 5\
**Last updated:** [4 January 2023 17:43 UTC](https://discourse.nodered.org/t/messages-losing-data/73168 "2023-01-04T17:43:43Z")

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I am trying to create a flow that calculates the time of flight of a message as a way of checking my MQTT server is working properly. My idea is that on startup the flow sends a message then every ten seconds the messag…

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## [How to do this in Node-RED](https://discourse.nodered.org/t/how-to-do-this-in-node-red/73159)

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**Author:** [@duaw](https://discourse.nodered.org/u/duaw)\
**Replies:** 4\
**Last updated:** [4 January 2023 17:20 UTC](https://discourse.nodered.org/t/how-to-do-this-in-node-red/73159 "2023-01-04T17:20:31Z")

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Hi, guys and gals! I am stuck and I need some advice: Relative Humidity comes in from my green house via MQTT, eg. "81.78". I round it to a whole number, eg. "82". I want to display it, among others, on a node-red-dash…

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## [Unifi presence control stopped working (after upgrade to node-red 3.0.2)](https://discourse.nodered.org/t/unifi-presence-control-stopped-working-after-upgrade-to-node-red-3-0-2/73162)

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**Author:** [@github6043](https://discourse.nodered.org/u/github6043)\
**Replies:** 1\
**Last updated:** [4 January 2023 14:39 UTC](https://discourse.nodered.org/t/unifi-presence-control-stopped-working-after-upgrade-to-node-red-3-0-2/73162 "2023-01-04T14:39:46Z")

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Hi all, I used a flow for quite some time to check with the unifi controller for connected clients. Serch criteria was the MAC. I assume, after noder-red upgrade to 3.0.2, this function stopped working. const lastSeenSe…

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## [Datepicker in Flexdash](https://discourse.nodered.org/t/datepicker-in-flexdash/72803)

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**Author:** [@smanjunath211](https://discourse.nodered.org/u/smanjunath211)\
**Replies:** 33\
**Last updated:** [4 January 2023 10:49 UTC](https://discourse.nodered.org/t/datepicker-in-flexdash/72803 "2023-01-04T10:49:46Z")

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Is there a datepicker widget in Flexdash? I tried dropdown widget but is not working

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## [Help with this node](https://discourse.nodered.org/t/help-with-this-node/73004)

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**Author:** [@street404](https://discourse.nodered.org/u/street404)\
**Replies:** 8\
**Last updated:** [4 January 2023 06:01 UTC](https://discourse.nodered.org/t/help-with-this-node/73004 "2023-01-04T06:01:28Z")

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hello everyone I hope you can help me with this node since it gives me an error i am working with this node: node-red-contrib-ccxt-v2 when executing node it gives me this: "kucoin GET https://api.kucoin.com/api/v1/sy…

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## [Combining messages from different payloads](https://discourse.nodered.org/t/combining-messages-from-different-payloads/72982)

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**Author:** [@nit-cyber](https://discourse.nodered.org/u/nit-cyber)\
**Replies:** 5\
**Last updated:** [4 January 2023 05:17 UTC](https://discourse.nodered.org/t/combining-messages-from-different-payloads/72982 "2023-01-04T05:17:06Z")

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the different messages coming from different streams and need to join using jsonata in single message to forward the result message at single instance

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## [Odd problem with Bearer Authentication](https://discourse.nodered.org/t/odd-problem-with-bearer-authentication/12422)

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**Author:** [@meesern](https://discourse.nodered.org/u/meesern)\
**Replies:** 20\
**Last updated:** [3 January 2023 14:55 UTC](https://discourse.nodered.org/t/odd-problem-with-bearer-authentication/12422 "2023-01-03T14:55:39Z")

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I have a problem that I can't figure out and hope someone here can shed some light on. In my flows I use an http request node to login to a service which returns a (very long) bearer token called idToken. I then pass t…

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## [Connecting NodeRed to a CCU (Homematic)](https://discourse.nodered.org/t/connecting-nodered-to-a-ccu-homematic/73129)

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**Author:** [@prkf](https://discourse.nodered.org/u/prkf)\
**Replies:** 1\
**Last updated:** [3 January 2023 23:17 UTC](https://discourse.nodered.org/t/connecting-nodered-to-a-ccu-homematic/73129 "2023-01-03T23:17:18Z")

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Hello, I am using NodeRed inside the Homeassistant. Beside that there is also an Homematic Addon installed. Now I like to connect NodeRed with the Homematic CCU with the help of the “nodered contrib ccu”. (GitHub - ptw…

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## [Trying to add timestamp to output of ping](https://discourse.nodered.org/t/trying-to-add-timestamp-to-output-of-ping/73083)

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**Author:** [@Clutch](https://discourse.nodered.org/u/Clutch)\
**Replies:** 4\
**Last updated:** [3 January 2023 23:00 UTC](https://discourse.nodered.org/t/trying-to-add-timestamp-to-output-of-ping/73083 "2023-01-03T23:00:43Z")

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I'm working on my second flow ever. Trying to add a timestamp to output of ping before I store it in a file. What did I do wrong? Node Red v3.0.2 running on a Pi2. Thanks, \[ { "id": "99ef514ed8f83fb0", …

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## [How to get websocket msg on (dis)connection?](https://discourse.nodered.org/t/how-to-get-websocket-msg-on-dis-connection/73108)

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**Author:** [@tainalo2](https://discourse.nodered.org/u/tainalo2)\
**Replies:** 4\
**Last updated:** [3 January 2023 20:26 UTC](https://discourse.nodered.org/t/how-to-get-websocket-msg-on-dis-connection/73108 "2023-01-03T20:26:24Z")

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Hello all, I'm using Node-RED as server to manage websockets sessions. One of my biggest problems is to detect when a session is disconnecting. With classic NodeJS we have an event onClose. But i don't know how to do i…

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## [Gate control by HA entity node](https://discourse.nodered.org/t/gate-control-by-ha-entity-node/73032)

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**Author:** [@migsun](https://discourse.nodered.org/u/migsun)\
**Replies:** 2\
**Last updated:** [3 January 2023 20:05 UTC](https://discourse.nodered.org/t/gate-control-by-ha-entity-node/73032 "2023-01-03T20:05:10Z")

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Hello, I want to control this function node through an entity node switched by Home Assistant. How do I configure the entity switch for an output with the msg.topic = "Gate" and boolean value true and false? function…

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## [Extract mp3 url from page, to play on chromecast](https://discourse.nodered.org/t/extract-mp3-url-from-page-to-play-on-chromecast/73091)

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**Author:** [@AVLimburg](https://discourse.nodered.org/u/AVLimburg)\
**Replies:** 7\
**Last updated:** [3 January 2023 18:38 UTC](https://discourse.nodered.org/t/extract-mp3-url-from-page-to-play-on-chromecast/73091 "2023-01-03T18:38:29Z")

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Hi, i'm trying to find a way to play a mp3 file that is updated on a website, to a GoogleHome/Chromecast speaker. Page: Burgernet On the page our police posts messages about missing persons or criminal activities in th…

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## [Thank you to you all](https://discourse.nodered.org/t/thank-you-to-you-all/73097)

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**Author:** [@Linhey](https://discourse.nodered.org/u/Linhey)\
**Replies:** 3\
**Last updated:** [3 January 2023 14:22 UTC](https://discourse.nodered.org/t/thank-you-to-you-all/73097 "2023-01-03T14:22:15Z")

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I don't ask many questions or write very much on this forum, but I just wanted to say a BIG THANK YOU to all those regular geniuses, who repeatedly answer the questions from us mortals. Every time I run into a brick wal…

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## [Read an RPi \*output\* pin state?](https://discourse.nodered.org/t/read-an-rpi-output-pin-state/72137)

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**Author:** [@Rgrove](https://discourse.nodered.org/u/Rgrove)\
**Replies:** 13\
**Last updated:** [3 January 2023 14:36 UTC](https://discourse.nodered.org/t/read-an-rpi-output-pin-state/72137 "2023-01-03T14:36:19Z")

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Good morning... I have an output GPIO in use, but can't seem to poll it for the current state. Users can turn it on and off through the UI. I don't want it re-initialized because I may do a dozen deploys while working …

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## [CRC-8 checksum function](https://discourse.nodered.org/t/crc-8-checksum-function/73087)

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**Author:** [@Angin](https://discourse.nodered.org/u/Angin)\
**Replies:** 9\
**Last updated:** [3 January 2023 14:28 UTC](https://discourse.nodered.org/t/crc-8-checksum-function/73087 "2023-01-03T14:28:28Z")

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Hello everyone, I need a function that can calculate CRC-8, but this is difficult for me, the C algorithm reference is as follows: unsigned char CRC8\_Check(unsigned char \*ptr,unsigned char len) { unsigned char crc;…

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## [Memory Usage - node-red-contrib-os 0.2.1](https://discourse.nodered.org/t/memory-usage-node-red-contrib-os-0-2-1/72549)

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**Author:** [@Manikandan](https://discourse.nodered.org/u/Manikandan)\
**Replies:** 6\
**Last updated:** [3 January 2023 12:34 UTC](https://discourse.nodered.org/t/memory-usage-node-red-contrib-os-0-2-1/72549 "2023-01-03T12:34:18Z")

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Hi , I am new to node-red and JS. In my project i am using the below mentioned CPU Architecture: armv7l Byte Order: Little Endian CPU(s): 4 On-line CPU(s) list: 0-3 Thread(s) per c…

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## [Failing to install nodered-contrib-face-recognition](https://discourse.nodered.org/t/failing-to-install-nodered-contrib-face-recognition/73070)

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**Author:** [@Barbudor](https://discourse.nodered.org/u/Barbudor)\
**Replies:** 3\
**Last updated:** [3 January 2023 08:29 UTC](https://discourse.nodered.org/t/failing-to-install-nodered-contrib-face-recognition/73070 "2023-01-03T08:29:21Z")

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Hello We are failling to install the node node-red-contrib-face-recognition in a Fargate container running nodered/node-red:3.0.2-16. It fails even in a clean, created-from scratch, container so no existing dependencie…

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## [HOW TO - Sonoff Zigbee 3.0 Dongle Plus on Debian running on HP2000](https://discourse.nodered.org/t/how-to-sonoff-zigbee-3-0-dongle-plus-on-debian-running-on-hp2000/72475)

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**Author:** [@nodeBoy816](https://discourse.nodered.org/u/nodeBoy816)\
**Replies:** 5\
**Last updated:** [2 January 2023 21:02 UTC](https://discourse.nodered.org/t/how-to-sonoff-zigbee-3-0-dongle-plus-on-debian-running-on-hp2000/72475 "2023-01-02T21:02:43Z")

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Hello All and sorry for the newbie question, but I'm having a bit of trouble installing my Sonoff Zigbee 3.0 Dongle Plus on my Debian 11 laptop (HP2000). When I plug the dongle in I get nothing (no lights, etc). I've tri…

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## [NodeRed not getting persisting messages from MQTT Broker after offline](https://discourse.nodered.org/t/nodered-not-getting-persisting-messages-from-mqtt-broker-after-offline/73033)

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**Author:** [@ickidebary](https://discourse.nodered.org/u/ickidebary)\
**Replies:** 8\
**Last updated:** [2 January 2023 19:30 UTC](https://discourse.nodered.org/t/nodered-not-getting-persisting-messages-from-mqtt-broker-after-offline/73033 "2023-01-02T19:30:42Z")

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Hi Folks, Similar to this thread, but, I've read it all and tried a lot of the things, afraid I'm still stuck. (I'd really like to avoid using a database to solve this, I'm a pretty average programmer, my application…

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## [Struggling with JavaScript syntax](https://discourse.nodered.org/t/struggling-with-javascript-syntax/73073)

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**Author:** [@Nivek1612](https://discourse.nodered.org/u/Nivek1612)\
**Replies:** 4\
**Last updated:** [2 January 2023 18:38 UTC](https://discourse.nodered.org/t/struggling-with-javascript-syntax/73073 "2023-01-02T18:38:07Z")

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Ok so I’m a newbie Struggling with syntax I have the following multicast being passed to a function in node-red "\<electricity id='xxxxxxxx' ver='2.0'\>\<timestamp\>1672667665\</timestamp\>\<signal rssi='-56' lqi='1'/\>\<batte…

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## [How to chose an entity attribute in a node](https://discourse.nodered.org/t/how-to-chose-an-entity-attribute-in-a-node/72790)

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**Author:** [@Rincovanderbeek](https://discourse.nodered.org/u/Rincovanderbeek)\
**Replies:** 2\
**Last updated:** [2 January 2023 18:35 UTC](https://discourse.nodered.org/t/how-to-chose-an-entity-attribute-in-a-node/72790 "2023-01-02T18:35:52Z")

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H, I have an enity containing multiple attributes to change the setting of my converter.. My output of thenode needs to change the attribute. However, these attribues are not being displayed by the node automatically. …

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## [State node always displays first entity in list](https://discourse.nodered.org/t/state-node-always-displays-first-entity-in-list/73060)

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**Author:** [@SimonM](https://discourse.nodered.org/u/SimonM)\
**Replies:** 4\
**Last updated:** [2 January 2023 17:30 UTC](https://discourse.nodered.org/t/state-node-always-displays-first-entity-in-list/73060 "2023-01-02T17:30:28Z")

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Hi all, I've an odd problem that I can't figure out. For all of my state nodes, when re-editing them the entity dropdown is displaying the wrong entity it always shows the first available entity in the list. :confused: …

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## [Trying to disect a payload object and combine parts into msg.options](https://discourse.nodered.org/t/trying-to-disect-a-payload-object-and-combine-parts-into-msg-options/73069)

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**Author:** [@Mikee1234K](https://discourse.nodered.org/u/Mikee1234K)\
**Replies:** 2\
**Last updated:** [2 January 2023 16:00 UTC](https://discourse.nodered.org/t/trying-to-disect-a-payload-object-and-combine-parts-into-msg-options/73069 "2023-01-02T16:00:48Z")

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I am querying a Sonos node to get my saved favourite radio stations to send to a dashboard dropdown node. From what I have researched, I should be sending it as a msg.options object. I have located the parts of where my…

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## [Passing from and to date and time to http request node](https://discourse.nodered.org/t/passing-from-and-to-date-and-time-to-http-request-node/73045)

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**Author:** [@Jhankhana](https://discourse.nodered.org/u/Jhankhana)\
**Replies:** 2\
**Last updated:** [2 January 2023 11:12 UTC](https://discourse.nodered.org/t/passing-from-and-to-date-and-time-to-http-request-node/73045 "2023-01-02T11:12:50Z")

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Hello! Need help! I am trying to read value of current date and time to pass it to http request node. Please help me with this. \[{"id":"ab460fa4.e776e","type":"ui\_button","z":"24076265.de751e","name":"","group":"6b69…

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## [How to compare and evaluate values in the function node](https://discourse.nodered.org/t/how-to-compare-and-evaluate-values-in-the-function-node/73054)

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**Author:** [@Dom1](https://discourse.nodered.org/u/Dom1)\
**Replies:** 1\
**Last updated:** [2 January 2023 10:00 UTC](https://discourse.nodered.org/t/how-to-compare-and-evaluate-values-in-the-function-node/73054 "2023-01-02T10:00:35Z")

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Hello Guys I'm stuck probably with a beginner problem. I want, if the Input "ns=4;s=Arp.Plc.Eclr/M\_HS\_Node\_Red\_1" is not equal "1" and the input "ns=4;s=Arp.Plc.Eclr/M\_HS\_Node\_Red\_Anf" is "true" then send out "true" e…

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## [Node-red-contrib-azure-iot-hub - Quotes in data and unencrypted body](https://discourse.nodered.org/t/node-red-contrib-azure-iot-hub-quotes-in-data-and-unencrypted-body/20873)

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**Author:** [@TePeBoxer](https://discourse.nodered.org/u/TePeBoxer)\
**Replies:** 2\
**Last updated:** [2 January 2023 09:02 UTC](https://discourse.nodered.org/t/node-red-contrib-azure-iot-hub-quotes-in-data-and-unencrypted-body/20873 "2023-01-02T09:02:53Z")

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Hi, just getting used to Azure IoT Hub integration with Node-RED. Two questions around node-red-contrib-azure-iot-hub: how can I get quoted texts into the data area? The example is not using them, without escape char…

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