# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=809

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

**Page:** 810

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## [I need help "Type already registered"](https://discourse.nodered.org/t/i-need-help-type-already-registered/19589)

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**Author:** [@nicsalabado](https://discourse.nodered.org/u/nicsalabado)\
**Replies:** 14\
**Last updated:** [8 January 2020 09:40 UTC](https://discourse.nodered.org/t/i-need-help-type-already-registered/19589 "2020-01-08T09:40:47Z")

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Hi, I'm very new here in node-red so please bear with me. Can someone help me with this? I don't know what will I do. And can you also help me with the secretcredential. Thanks!! Welcome to Node-RED …

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## [Install Failed on Ubuntu Mate on Raspberry Pi 3B](https://discourse.nodered.org/t/install-failed-on-ubuntu-mate-on-raspberry-pi-3b/18938)

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**Author:** [@tkanjar](https://discourse.nodered.org/u/tkanjar)\
**Replies:** 2\
**Last updated:** [8 January 2020 00:22 UTC](https://discourse.nodered.org/t/install-failed-on-ubuntu-mate-on-raspberry-pi-3b/18938 "2020-01-08T00:22:00Z")

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I tryed to install Node-RED using script for Debian: bash \<(curl -sL https://raw.githubusercontent.com/node-red/linux-installers/master/deb/update-nodejs-and-nodered) but install failed. Update Node.js LTS ✘ Failed t…

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## [Concurrency: Writing to database](https://discourse.nodered.org/t/concurrency-writing-to-database/20022)

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**Author:** [@eugene](https://discourse.nodered.org/u/eugene)\
**Replies:** 1\
**Last updated:** [7 January 2020 19:57 UTC](https://discourse.nodered.org/t/concurrency-writing-to-database/20022 "2020-01-07T19:57:36Z")

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Node-red fundamental question. I have a flow that writes input payload to a database (same table). The input payload comes from 5 sources, the time is depending on some external event. Do I need to worry for lost of d…

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## [Parsing html data](https://discourse.nodered.org/t/parsing-html-data/19945)

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**Author:** [@alexander77](https://discourse.nodered.org/u/alexander77)\
**Replies:** 6\
**Last updated:** [7 January 2020 19:46 UTC](https://discourse.nodered.org/t/parsing-html-data/19945 "2020-01-07T19:46:46Z")

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Hi, it's first time i try to read data from a web-page. I can read the data, i get ~7700 characters, and when looking into the data manually i find the data i'm looking for somwhere in the middle: · \<a href=results.php…

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## [Catch node not finding error](https://discourse.nodered.org/t/catch-node-not-finding-error/20015)

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**Author:** [@Dave](https://discourse.nodered.org/u/Dave)\
**Replies:** 7\
**Last updated:** [7 January 2020 18:09 UTC](https://discourse.nodered.org/t/catch-node-not-finding-error/20015 "2020-01-07T18:09:15Z")

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I have a i2c node which monitors a the state of a battery's charge in one of my flows it works fine however if I disconnect the battery, as expected I get an error: raspberrypi Node-RED\[340\]: 7 Jan 15:23:28 - \[error\] \[i…

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## [Strange signs comming in](https://discourse.nodered.org/t/strange-signs-comming-in/19989)

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**Author:** [@Mrfox](https://discourse.nodered.org/u/Mrfox)\
**Replies:** 5\
**Last updated:** [7 January 2020 17:01 UTC](https://discourse.nodered.org/t/strange-signs-comming-in/19989 "2020-01-07T17:01:01Z")

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Hi, I am trying to make a flow for reading data from an energy meter to a Grafana dashboard via Influxdb. I have a MBUS-USB converter, obviously connected to the USB port, transfering the signal from the HAN port. My pr…

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## [How to add numbers to a date time string](https://discourse.nodered.org/t/how-to-add-numbers-to-a-date-time-string/19982)

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**Author:** [@pvanklink](https://discourse.nodered.org/u/pvanklink)\
**Replies:** 3\
**Last updated:** [7 January 2020 15:32 UTC](https://discourse.nodered.org/t/how-to-add-numbers-to-a-date-time-string/19982 "2020-01-07T15:32:28Z")

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this script gives a date time stamp 6-1-2020 tijd: 20:6:11 i want 06-01-2020 tijd: 20:06:11 (extra 0 before day, month, hour etc.) is this possible? var today = new Date(); var date = today.getDate() +'-'+(today.ge…

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## [Ethernet Shield internet connection](https://discourse.nodered.org/t/ethernet-shield-internet-connection/20004)

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**Author:** [@saeed1](https://discourse.nodered.org/u/saeed1)\
**Replies:** 3\
**Last updated:** [7 January 2020 11:14 UTC](https://discourse.nodered.org/t/ethernet-shield-internet-connection/20004 "2020-01-07T11:14:21Z")

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Hi, I have connected my (ethernet shield+ Arduino ) directly to my home router. I am publishing "Hello world" on Node-RED. My question is , is there a way i could connect directly my ethernet shield to my laptop (inste…

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## [How to force update node from www.npmjs.com to node-red pallet?](https://discourse.nodered.org/t/how-to-force-update-node-from-www-npmjs-com-to-node-red-pallet/20000)

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**Author:** [@10der](https://discourse.nodered.org/u/10der)\
**Replies:** 2\
**Last updated:** [7 January 2020 09:03 UTC](https://discourse.nodered.org/t/how-to-force-update-node-from-www-npmjs-com-to-node-red-pallet/20000 "2020-01-07T09:03:36Z")

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subj. Version 0.0.13 vs thank you!

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## [Bluetooth not working](https://discourse.nodered.org/t/bluetooth-not-working/19814)

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**Author:** [@bigmac5753](https://discourse.nodered.org/u/bigmac5753)\
**Replies:** 12\
**Last updated:** [7 January 2020 08:23 UTC](https://discourse.nodered.org/t/bluetooth-not-working/19814 "2020-01-07T08:23:16Z")

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I have installed NR on a tinker board with armbian. The OS can utilise bluetooth but NR cannot, is there something else I need to install for NR to detect bluetooth?

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## [The use of mqtt on multiple dht11](https://discourse.nodered.org/t/the-use-of-mqtt-on-multiple-dht11/19992)

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**Author:** [@Azim](https://discourse.nodered.org/u/Azim)\
**Replies:** 1\
**Last updated:** [7 January 2020 02:13 UTC](https://discourse.nodered.org/t/the-use-of-mqtt-on-multiple-dht11/19992 "2020-01-07T02:13:34Z")

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should i use MQTT for multiple dht11 on node red dashboard?

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## [Node-red-contrib-alexa-remote2](https://discourse.nodered.org/t/node-red-contrib-alexa-remote2/5812)

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**Author:** [@martinschki](https://discourse.nodered.org/u/martinschki)\
**Replies:** 6\
**Last updated:** [6 January 2020 23:51 UTC](https://discourse.nodered.org/t/node-red-contrib-alexa-remote2/5812 "2020-01-06T23:51:23Z")

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This really sounds interesting... Could this be closing the loop for audio feedback via Alexa?? Has anyone tried this?

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## [Uncaught Exception in node-red-contrib-azure restarts node red](https://discourse.nodered.org/t/uncaught-exception-in-node-red-contrib-azure-restarts-node-red/19986)

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**Author:** [@tiagonmas](https://discourse.nodered.org/u/tiagonmas)\
**Replies:** 5\
**Last updated:** [6 January 2020 22:36 UTC](https://discourse.nodered.org/t/uncaught-exception-in-node-red-contrib-azure-restarts-node-red/19986 "2020-01-06T22:36:07Z")

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Created an issue on Github repo fornode-red-contrib-azure # Uncaught Exception RowKey should be a string - forces node red restart #25 node red should survive an uncaught exception in a node !?

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## [Suppress door sensor outputs for 30 seconds](https://discourse.nodered.org/t/suppress-door-sensor-outputs-for-30-seconds/19964)

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**Author:** [@Murrci](https://discourse.nodered.org/u/Murrci)\
**Replies:** 2\
**Last updated:** [6 January 2020 20:09 UTC](https://discourse.nodered.org/t/suppress-door-sensor-outputs-for-30-seconds/19964 "2020-01-06T20:09:30Z")

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Hi there, I am quite new to Node Red, so bear with me... I have a Xiaomi Doorsensor which sends Open: FALSE or TRUE whenever the door is openend or not. However when somebody quickly opens the door to grab something f…

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## [Node red mejor opción de nube](https://discourse.nodered.org/t/node-red-mejor-opcion-de-nube/19978)

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**Author:** [@Erick](https://discourse.nodered.org/u/Erick)\
**Replies:** 1\
**Last updated:** [6 January 2020 19:32 UTC](https://discourse.nodered.org/t/node-red-mejor-opcion-de-nube/19978 "2020-01-06T19:32:48Z")

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Hola espero y alguien pueda orientarme. Tengo un flujo ya terminado y me gustaría tener acceso a el desde la nube pero no se cual sea la mejor opción ($) actualmente estoy probando IBM Cloud sin embargo el consumo que r…

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## [Is GIT sync still supported?](https://discourse.nodered.org/t/is-git-sync-still-supported/19977)

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**Author:** [@RogierQ](https://discourse.nodered.org/u/RogierQ)\
**Replies:** 2\
**Last updated:** [6 January 2020 17:46 UTC](https://discourse.nodered.org/t/is-git-sync-still-supported/19977 "2020-01-06T17:46:35Z")

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I remember in some versions ago it was possible to sync project flows and stuff with GIT But i cannot find this anymore in the web interface. Is it still supported?

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## [Turn on a device based on which Alexa requests it](https://discourse.nodered.org/t/turn-on-a-device-based-on-which-alexa-requests-it/10358)

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**Author:** [@shorage](https://discourse.nodered.org/u/shorage)\
**Replies:** 8\
**Last updated:** [6 January 2020 17:11 UTC](https://discourse.nodered.org/t/turn-on-a-device-based-on-which-alexa-requests-it/10358 "2020-01-06T17:11:45Z")

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Hello, I didnt know where to post this. Basically i am trying to run specific scripts in home assistant based on which alexa "turns on" the device. If i tell my living room alexa to "turn on front door camera", i want …

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## [Node red starts but not as a service](https://discourse.nodered.org/t/node-red-starts-but-not-as-a-service/19971)

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**Author:** [@tiagonmas](https://discourse.nodered.org/u/tiagonmas)\
**Replies:** 8\
**Last updated:** [6 January 2020 17:11 UTC](https://discourse.nodered.org/t/node-red-starts-but-not-as-a-service/19971 "2020-01-06T17:11:41Z")

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Hi, I can start node red normally, but while installing it as a service it does not start, providing an error Starting as a service, it does not work: pi@raspberrypi:~/shared/mqtt-topic-logger/tlogs/tele/tasmota $ sud…

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## [Get Node By Node ID - Debug](https://discourse.nodered.org/t/get-node-by-node-id-debug/19966)

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**Author:** [@Soloam](https://discourse.nodered.org/u/Soloam)\
**Replies:** 11\
**Last updated:** [6 January 2020 17:10 UTC](https://discourse.nodered.org/t/get-node-by-node-id-debug/19966 "2020-01-06T17:10:02Z")

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Hello, I've been having a lot of spams on my debug window from a node that I can't seem to find it! 1/6/2020, 2:52:20 PM 8f20977.8ae7868 msg : string\[23\] "no response from server" a lot of messages from this no…

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## [Best way to replicate OR function?](https://discourse.nodered.org/t/best-way-to-replicate-or-function/19972)

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**Author:** [@Sean-McG](https://discourse.nodered.org/u/Sean-McG)\
**Replies:** 5\
**Last updated:** [6 January 2020 17:04 UTC](https://discourse.nodered.org/t/best-way-to-replicate-or-function/19972 "2020-01-06T17:04:14Z")

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Sorry for another noob question but I'm missing the typical OR function to test mulitple values in a function node. I was trying to avoid having to have lots of extra change nodes. I want to test payload and change as r…

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## [Z-Wave Aeotec Siren Gen 5 - Sound and volume](https://discourse.nodered.org/t/z-wave-aeotec-siren-gen-5-sound-and-volume/19965)

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**Author:** [@juntiedt](https://discourse.nodered.org/u/juntiedt)\
**Replies:** 0\
**Last updated:** [6 January 2020 14:07 UTC](https://discourse.nodered.org/t/z-wave-aeotec-siren-gen-5-sound-and-volume/19965 "2020-01-06T14:07:57Z")

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It took me quite a while to figure out how to set the sound and volume of Aeotec Siren Gen 5. Therefore I am posting the working command: return {topic:"setValue", payload: {"nodeid":12, "cmdclass":112, "Type":"list", …

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## [Not able detects http packets in wireshark](https://discourse.nodered.org/t/not-able-detects-http-packets-in-wireshark/19962)

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**Author:** [@kiran](https://discourse.nodered.org/u/kiran)\
**Replies:** 5\
**Last updated:** [6 January 2020 12:00 UTC](https://discourse.nodered.org/t/not-able-detects-http-packets-in-wireshark/19962 "2020-01-06T12:00:48Z")

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Hi, i am using http request node to request to the server. and i want to analyse the pakage transmission between node red and server. but i am not able get any package transmission data in wireshark

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## [How to do http request from contrib node](https://discourse.nodered.org/t/how-to-do-http-request-from-contrib-node/19769)

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**Author:** [@kiran](https://discourse.nodered.org/u/kiran)\
**Replies:** 5\
**Last updated:** [6 January 2020 11:29 UTC](https://discourse.nodered.org/t/how-to-do-http-request-from-contrib-node/19769 "2020-01-06T11:29:10Z")

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Is there is any library available for HTTP request in contrib node.

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## [Node-Red-Admin install failed](https://discourse.nodered.org/t/node-red-admin-install-failed/19959)

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**Author:** [@Golonder](https://discourse.nodered.org/u/Golonder)\
**Replies:** 2\
**Last updated:** [6 January 2020 10:32 UTC](https://discourse.nodered.org/t/node-red-admin-install-failed/19959 "2020-01-06T10:32:23Z")

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Hi, I would like to install node-red-admin and secure my installation, but unfortunately the installation fails with several errors that I do not understand: pi@raspberrypi:~ $ sudo npm install -g node-red-admin /usr/l…

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## [Is there a best practice on data change tracking using node-red?](https://discourse.nodered.org/t/is-there-a-best-practice-on-data-change-tracking-using-node-red/19952)

<div class="topic-metadata">

**Author:** [@fangzhu](https://discourse.nodered.org/u/fangzhu)\
**Replies:** 3\
**Last updated:** [6 January 2020 10:17 UTC](https://discourse.nodered.org/t/is-there-a-best-practice-on-data-change-tracking-using-node-red/19952 "2020-01-06T10:17:38Z")

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We can update data in memory or database using Node-RED flows. I want to implement a mechanism to publish such data update event so that they can be re-used as history or report. Is there a best practice for this?

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## [Brainbox Analogue Output (Modbus-Nodes)](https://discourse.nodered.org/t/brainbox-analogue-output-modbus-nodes/19957)

<div class="topic-metadata">

**Author:** [@Unikumet](https://discourse.nodered.org/u/Unikumet)\
**Replies:** 0\
**Last updated:** [6 January 2020 09:15 UTC](https://discourse.nodered.org/t/brainbox-analogue-output-modbus-nodes/19957 "2020-01-06T09:15:15Z")

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Hi all, I'm currently working on a project with Node-RED. The task at hand is to regulate the current supplying an equipment between 4-20mA, and for that I am using a Brainbox ED-560, Node-RED and Modbus Nodes. Does a…

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## [Threshold node will not output](https://discourse.nodered.org/t/threshold-node-will-not-output/19942)

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**Author:** [@Quanta](https://discourse.nodered.org/u/Quanta)\
**Replies:** 20\
**Last updated:** [6 January 2020 08:37 UTC](https://discourse.nodered.org/t/threshold-node-will-not-output/19942 "2020-01-06T08:37:18Z")

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Greetings all. Still new to NR and having some trouble with something which is probably very basic. I have done the requisite search and study (hours not minutes) but to my shame, I can't seem to find the key. The code…

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## [Help with Sqlite Select clause](https://discourse.nodered.org/t/help-with-sqlite-select-clause/19919)

<div class="topic-metadata">

**Author:** [@NODE777](https://discourse.nodered.org/u/NODE777)\
**Replies:** 5\
**Last updated:** [5 January 2020 20:42 UTC](https://discourse.nodered.org/t/help-with-sqlite-select-clause/19919 "2020-01-05T20:42:29Z")

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Hi This is my first time working with Sqlite. I'm trying to test clauses and the SELECT clause to read just 3 columns give me Sintax error near FROM . I've attached the flow. SQLITE test.txt (4.0 KB) Thank you very…

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## [Palette manager install fails](https://discourse.nodered.org/t/palette-manager-install-fails/19906)

<div class="topic-metadata">

**Author:** [@anterosa](https://discourse.nodered.org/u/anterosa)\
**Replies:** 5\
**Last updated:** [5 January 2020 20:18 UTC](https://discourse.nodered.org/t/palette-manager-install-fails/19906 "2020-01-05T20:18:27Z")

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I have been using raspian and node red few years. It has been working well. I desided to update node red and update worked well. Then I run in to trouble with palette manager. node-red-contrib-tellstick had some confl…

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## [Node-red-node-pi-neopixel - Control multiple LEDs at same time (not in succession)](https://discourse.nodered.org/t/node-red-node-pi-neopixel-control-multiple-leds-at-same-time-not-in-succession/5157)

<div class="topic-metadata">

**Author:** [@TheSauce](https://discourse.nodered.org/u/TheSauce)\
**Replies:** 32\
**Last updated:** [5 January 2020 17:52 UTC](https://discourse.nodered.org/t/node-red-node-pi-neopixel-control-multiple-leds-at-same-time-not-in-succession/5157 "2020-01-05T17:52:29Z")

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I'm playing around with a WS2812B LED strip. I have it working from following the fantastic guide located here. What I can't figure out how to do though is control multiple LEDs at the same time. For example, I wan to…

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