# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=784

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

**Page:** 785

---

## [Dashboard ui\_dropdown behaviour](https://discourse.nodered.org/t/dashboard-ui-dropdown-behaviour/22825)

<div class="topic-metadata">

**Author:** [@Bobo](https://discourse.nodered.org/u/Bobo)\
**Replies:** 2\
**Last updated:** [10 March 2020 09:32 UTC](https://discourse.nodered.org/t/dashboard-ui-dropdown-behaviour/22825 "2020-03-10T09:32:33Z")

</div>

The behaviour of the ui\_dropdown that I see when an item is selected (the onclick event) is that msg.topic is not sent. To clarify, it appears this ONLY occurs when msg.topic is passed in, not when set in the dropdown e…

---

## [Best practice for installation of node-red and custom node](https://discourse.nodered.org/t/best-practice-for-installation-of-node-red-and-custom-node/22850)

<div class="topic-metadata">

**Author:** [@Maurice](https://discourse.nodered.org/u/Maurice)\
**Replies:** 2\
**Last updated:** [9 March 2020 20:52 UTC](https://discourse.nodered.org/t/best-practice-for-installation-of-node-red-and-custom-node/22850 "2020-03-09T20:52:05Z")

</div>

Hello guys, I'll need your help today because I'm new in node app and node red and I have two big questions about how to correctly structure and where installed stuff that's I can't solve alone... First : I've seen one…

---

## [How to get node red logs as a text file](https://discourse.nodered.org/t/how-to-get-node-red-logs-as-a-text-file/22904)

<div class="topic-metadata">

**Author:** [@DemonKing](https://discourse.nodered.org/u/DemonKing)\
**Replies:** 3\
**Last updated:** [10 March 2020 08:36 UTC](https://discourse.nodered.org/t/how-to-get-node-red-logs-as-a-text-file/22904 "2020-03-10T08:36:07Z")

</div>

Hi all I can saw the logs in command promt but i want that logs as a file fo debugging please let me know how to do that thanks

---

## [Problems setting up NR environment in Suse](https://discourse.nodered.org/t/problems-setting-up-nr-environment-in-suse/22860)

<div class="topic-metadata">

**Author:** [@nygma2004](https://discourse.nodered.org/u/nygma2004)\
**Replies:** 3\
**Last updated:** [10 March 2020 07:49 UTC](https://discourse.nodered.org/t/problems-setting-up-nr-environment-in-suse/22860 "2020-03-10T07:49:23Z")

</div>

Hi All, I have tried asking around in many places - most probably wrong places - and I am still not able to resolve my issue. I am trying to set up a NR environment in Suse Linux server. All my Linux experience is with…

---

## [Change light temperature over time](https://discourse.nodered.org/t/change-light-temperature-over-time/22843)

<div class="topic-metadata">

**Author:** [@ZionTucker](https://discourse.nodered.org/u/ZionTucker)\
**Replies:** 2\
**Last updated:** [10 March 2020 07:02 UTC](https://discourse.nodered.org/t/change-light-temperature-over-time/22843 "2020-03-10T07:02:19Z")

</div>

While I've built an impressive amount of flows for my smart home, now is the time I need some extra brains to help me :slight\_smile: What I want: Change the light temperature of my living room lights from the time they …

---

## [Is it possible to use NR-Editor and NR-Runtime in different servers?](https://discourse.nodered.org/t/is-it-possible-to-use-nr-editor-and-nr-runtime-in-different-servers/22718)

<div class="topic-metadata">

**Author:** [@SunnyLeo](https://discourse.nodered.org/u/SunnyLeo)\
**Replies:** 8\
**Last updated:** [10 March 2020 05:22 UTC](https://discourse.nodered.org/t/is-it-possible-to-use-nr-editor-and-nr-runtime-in-different-servers/22718 "2020-03-10T05:22:23Z")

</div>

sorry,a newbie here with a newbie question i noticed the latest version NR has split editor and runtime,that's awsone! Could I only deploy NR-Runtime on a device such like Raspberry Pi and deploy NR-Editor on my local …

---

## [TCP Request VLC issue](https://discourse.nodered.org/t/tcp-request-vlc-issue/22895)

<div class="topic-metadata">

**Author:** [@lopikamper](https://discourse.nodered.org/u/lopikamper)\
**Replies:** 3\
**Last updated:** [9 March 2020 23:15 UTC](https://discourse.nodered.org/t/tcp-request-vlc-issue/22895 "2020-03-09T23:15:02Z")

</div>

Hi, I am trying to control VLC over remote control TCP or lua TCP with TCP nodes in node-red. I have succesfully created a connection between node-red TCP Request (TCP out) nodes and the listener on VLC side. The probl…

---

## [setTimeout function timesout not the given time](https://discourse.nodered.org/t/settimeout-function-timesout-not-the-given-time/22888)

<div class="topic-metadata">

**Author:** [@gschmidt](https://discourse.nodered.org/u/gschmidt)\
**Replies:** 8\
**Last updated:** [9 March 2020 22:19 UTC](https://discourse.nodered.org/t/settimeout-function-timesout-not-the-given-time/22888 "2020-03-09T22:19:30Z")

</div>

Hi, In a Function Node I use the "setTimeout" function twice The first timeout takes exactly 2 seconds (2000 ms) The last timeout takes exactly 5 seconds, however I have have set it at 7 seconds (7000 ms) When I set …

---

## [Unicode to number](https://discourse.nodered.org/t/unicode-to-number/22758)

<div class="topic-metadata">

**Author:** [@StianB](https://discourse.nodered.org/u/StianB)\
**Replies:** 6\
**Last updated:** [9 March 2020 21:00 UTC](https://discourse.nodered.org/t/unicode-to-number/22758 "2020-03-09T21:00:35Z")

</div>

Hi, I am having some issues to convert what appears to be unicode into number. I am running a python script from a exec module where the msg.payload returns a value which seems to be unicode(?) Adding a change node r…

---

## [How to test for undefined in function node](https://discourse.nodered.org/t/how-to-test-for-undefined-in-function-node/19200)

<div class="topic-metadata">

**Author:** [@Sean-McG](https://discourse.nodered.org/u/Sean-McG)\
**Replies:** 11\
**Last updated:** [9 March 2020 20:52 UTC](https://discourse.nodered.org/t/how-to-test-for-undefined-in-function-node/19200 "2020-03-09T20:52:00Z")

</div>

I have a number of messages which share the same topic but with various payload objects, which vary from message to message. The code bellow does what I need when the relevant object is present in the message var1 = {p…

---

## [Reverse DNS Look Up](https://discourse.nodered.org/t/reverse-dns-look-up/22807)

<div class="topic-metadata">

**Author:** [@nodecentral](https://discourse.nodered.org/u/nodecentral)\
**Replies:** 4\
**Last updated:** [9 March 2020 18:55 UTC](https://discourse.nodered.org/t/reverse-dns-look-up/22807 "2020-03-09T18:55:18Z")

</div>

Hi I’m trying to get the IP address of a domain name, so I can add the IP to my firewall but I can’t seem to get the dns node to work - node-red-contrib-dns (node) - Node-RED Is anyone using this successfully for rever…

---

## [New to node-red-contrib-ramp-thermostat](https://discourse.nodered.org/t/new-to-node-red-contrib-ramp-thermostat/22801)

<div class="topic-metadata">

**Author:** [@shel](https://discourse.nodered.org/u/shel)\
**Replies:** 21\
**Last updated:** [9 March 2020 18:23 UTC](https://discourse.nodered.org/t/new-to-node-red-contrib-ramp-thermostat/22801 "2020-03-09T18:23:43Z")

</div>

Totally new to this with little programming but want to try to use this node to control a terrarium. Found several threads that say this node can be programmed via the dashboard but I am unable to find the right wording.…

---

## [Application Security (Flow)](https://discourse.nodered.org/t/application-security-flow/22853)

<div class="topic-metadata">

**Author:** [@mribeiro](https://discourse.nodered.org/u/mribeiro)\
**Replies:** 1\
**Last updated:** [9 March 2020 18:22 UTC](https://discourse.nodered.org/t/application-security-flow/22853 "2020-03-09T18:22:11Z")

</div>

Hello everyone, Very good to work with Node-RED, I am happy to enter this IOT world, I am not sure if this has already been discussed here, forgive me! I created a simple application in Node-RED, but just as everything…

---

## [Node-red-contrib-moment - how to add timestamp from incoming MQTT node?](https://discourse.nodered.org/t/node-red-contrib-moment-how-to-add-timestamp-from-incoming-mqtt-node/22873)

<div class="topic-metadata">

**Author:** [@877](https://discourse.nodered.org/u/877)\
**Replies:** 4\
**Last updated:** [9 March 2020 18:22 UTC](https://discourse.nodered.org/t/node-red-contrib-moment-how-to-add-timestamp-from-incoming-mqtt-node/22873 "2020-03-09T18:22:05Z")

</div>

Can anyone advise on this please. The issue is that unless I use a timestamp trigger node, the time does not set and it shows 00:00. The date shows correctly. The MQTT node sends either true or false. No doubt I am misu…

---

## [Node red on azure](https://discourse.nodered.org/t/node-red-on-azure/22516)

<div class="topic-metadata">

**Author:** [@arafdy](https://discourse.nodered.org/u/arafdy)\
**Replies:** 3\
**Last updated:** [9 March 2020 17:43 UTC](https://discourse.nodered.org/t/node-red-on-azure/22516 "2020-03-09T17:43:33Z")

</div>

Hey i want run node red on my azure with linux server , i try tutorial on node red and azuee says node red run on 127.0.0.1:1880 how can i access with my public ip ?

---

## [Node-red Sqlite SELECT syntax error](https://discourse.nodered.org/t/node-red-sqlite-select-syntax-error/22838)

<div class="topic-metadata">

**Author:** [@pautorras](https://discourse.nodered.org/u/pautorras)\
**Replies:** 3\
**Last updated:** [9 March 2020 15:15 UTC](https://discourse.nodered.org/t/node-red-sqlite-select-syntax-error/22838 "2020-03-09T15:15:37Z")

</div>

Hi all. I'm getting an error in a SELECT command from Sqlite DB. The error msg is : "Error: SQLITE\_ERROR: near "Index": syntax error" The command I output to Sqlite DB: var newMsg = { // "topic": "SELECT \* FROM Mont…

---

## [Problem installing node-red-contrib-web-worldmap](https://discourse.nodered.org/t/problem-installing-node-red-contrib-web-worldmap/22845)

<div class="topic-metadata">

**Author:** [@Nim\_nem](https://discourse.nodered.org/u/Nim_nem)\
**Replies:** 2\
**Last updated:** [9 March 2020 14:30 UTC](https://discourse.nodered.org/t/problem-installing-node-red-contrib-web-worldmap/22845 "2020-03-09T14:30:48Z")

</div>

Hi, I have problem installing the node-red-contrib-web-worldmap. I did add it manually in the git, but it does not appear in the Node-red dashboard. Also I tried installing it from the Manage palette and I got the follow…

---

## [No response on the Serial input node](https://discourse.nodered.org/t/no-response-on-the-serial-input-node/22864)

<div class="topic-metadata">

**Author:** [@DarkCone](https://discourse.nodered.org/u/DarkCone)\
**Replies:** 0\
**Last updated:** [9 March 2020 14:17 UTC](https://discourse.nodered.org/t/no-response-on-the-serial-input-node/22864 "2020-03-09T14:17:07Z")

</div>

Hi, I started a project for my school and I need to use node-red on a raspberry pi . The serial port works fine and I have no problem sending and receiving data with minicom or putty. But when I try using the serial no…

---

## [Writing an image using file node and a binary buffer](https://discourse.nodered.org/t/writing-an-image-using-file-node-and-a-binary-buffer/13942)

<div class="topic-metadata">

**Author:** [@lucaDgt](https://discourse.nodered.org/u/lucaDgt)\
**Replies:** 9\
**Last updated:** [9 March 2020 12:46 UTC](https://discourse.nodered.org/t/writing-an-image-using-file-node-and-a-binary-buffer/13942 "2020-03-09T12:46:24Z")

</div>

Hi, my flow is using the file node as output, to dump an image i am receiving by socket, so i am working with binary data and Buffer. the node file is configured in overwrite mode, and binary encoding, without appendin…

---

## [Line chart modification](https://discourse.nodered.org/t/line-chart-modification/22700)

<div class="topic-metadata">

**Author:** [@yawstick1](https://discourse.nodered.org/u/yawstick1)\
**Replies:** 7\
**Last updated:** [9 March 2020 12:45 UTC](https://discourse.nodered.org/t/line-chart-modification/22700 "2020-03-09T12:45:01Z")

</div>

I am using a line chart to display temps... I'm wondering if its possible to make the font size larger that it uses when you mouse over the chart. If so where would that be done?

---

## [Modbus Multi Register Writing](https://discourse.nodered.org/t/modbus-multi-register-writing/22823)

<div class="topic-metadata">

**Author:** [@rromele](https://discourse.nodered.org/u/rromele)\
**Replies:** 3\
**Last updated:** [9 March 2020 12:42 UTC](https://discourse.nodered.org/t/modbus-multi-register-writing/22823 "2020-03-09T12:42:44Z")

</div>

Hi, everyone, I have a small problem to solve related to the Modbus protocol, I receive a hundred data in floating point 32 bit format from various instruments and plc on the network, I should retransmit them via Modbus…

---

## [Node-red + postgres](https://discourse.nodered.org/t/node-red-postgres/22633)

<div class="topic-metadata">

**Author:** [@saf](https://discourse.nodered.org/u/saf)\
**Replies:** 7\
**Last updated:** [9 March 2020 09:41 UTC](https://discourse.nodered.org/t/node-red-postgres/22633 "2020-03-09T09:41:30Z")

</div>

Hello everyone! I have a problem with converting JSON string to a database postgreSQL. How I can put JSON strin into a table ? I tried that: var myDataArray = JSON.parse(msg.payload.split(',')); var heading = myData…

---

## [Create flow using aes](https://discourse.nodered.org/t/create-flow-using-aes/22727)

<div class="topic-metadata">

**Author:** [@jabberimaher](https://discourse.nodered.org/u/jabberimaher)\
**Replies:** 2\
**Last updated:** [9 March 2020 12:27 UTC](https://discourse.nodered.org/t/create-flow-using-aes/22727 "2020-03-09T12:27:01Z")

</div>

hello, please, i need to create flow: sensor node send encrypted data by aes and dat will be decrypted by another sensor node. During the simulation i must recuperate energy consumption and tie execution for both opera…

---

## [Node-red-contrib-alice - have someone tried it?](https://discourse.nodered.org/t/node-red-contrib-alice-have-someone-tried-it/22848)

<div class="topic-metadata">

**Author:** [@syoma755](https://discourse.nodered.org/u/syoma755)\
**Replies:** 0\
**Last updated:** [9 March 2020 10:43 UTC](https://discourse.nodered.org/t/node-red-contrib-alice-have-someone-tried-it/22848 "2020-03-09T10:43:34Z")

</div>

Hi there. As I'm looking for russian voice support, and both Goggle and Apple haven't it, I want to check node-red-contrib-alice. Did someone try it? It's written, that this skill is at moderation in Yandex - does it p…

---

## [Is it possible to link an android application with node red](https://discourse.nodered.org/t/is-it-possible-to-link-an-android-application-with-node-red/22836)

<div class="topic-metadata">

**Author:** [@HICHAM22](https://discourse.nodered.org/u/HICHAM22)\
**Replies:** 1\
**Last updated:** [9 March 2020 09:42 UTC](https://discourse.nodered.org/t/is-it-possible-to-link-an-android-application-with-node-red/22836 "2020-03-09T09:42:32Z")

</div>

is it possible to link an android application with node red ? I created a dashboard and I want to create an application on mit app inventor to display the dashboard.

---

## [Swapping data with Javascript](https://discourse.nodered.org/t/swapping-data-with-javascript/22831)

<div class="topic-metadata">

**Author:** [@AlessandroMonchieri](https://discourse.nodered.org/u/AlessandroMonchieri)\
**Replies:** 1\
**Last updated:** [9 March 2020 08:39 UTC](https://discourse.nodered.org/t/swapping-data-with-javascript/22831 "2020-03-09T08:39:24Z")

</div>

Hi everyone. I have a problem with my Node-Red project. I just want to read a data from Siemens PLC and then pass this value to a javascript function without using protocol like WebSocket. In this moment i'm connecting…

---

## [Send pushbullet notifications](https://discourse.nodered.org/t/send-pushbullet-notifications/22834)

<div class="topic-metadata">

**Author:** [@Zyan](https://discourse.nodered.org/u/Zyan)\
**Replies:** 0\
**Last updated:** [9 March 2020 08:21 UTC](https://discourse.nodered.org/t/send-pushbullet-notifications/22834 "2020-03-09T08:21:49Z")

</div>

Hey guys iam using Node red on my pi with openhabian installed the pi is connected to my router, can pushbullet node send notifications then? Or I need to configurate node red before to send them?

---

## [Suddenly lost connection to server](https://discourse.nodered.org/t/suddenly-lost-connection-to-server/22826)

<div class="topic-metadata">

**Author:** [@ncsalb](https://discourse.nodered.org/u/ncsalb)\
**Replies:** 1\
**Last updated:** [9 March 2020 06:01 UTC](https://discourse.nodered.org/t/suddenly-lost-connection-to-server/22826 "2020-03-09T06:01:19Z")

</div>

Good Day! Can someone explain what happened to my node-red? The last time I used node-red the flow still works then now it suddenly lost connection. Thank you so much!

---

## [Delay without and cancel input during that time?](https://discourse.nodered.org/t/delay-without-and-cancel-input-during-that-time/22814)

<div class="topic-metadata">

**Author:** [@another\_dave](https://discourse.nodered.org/u/another_dave)\
**Replies:** 2\
**Last updated:** [8 March 2020 22:11 UTC](https://discourse.nodered.org/t/delay-without-and-cancel-input-during-that-time/22814 "2020-03-08T22:11:59Z")

</div>

Hi All, I've created a flow which is listening to certain alerts and then broadcasts to my Alexa when they come through but I only want the first one to be processed with a 20 minute pause before the next one can come t…

---

## [Grove Base Hat not working](https://discourse.nodered.org/t/grove-base-hat-not-working/22793)

<div class="topic-metadata">

**Author:** [@StevenRott](https://discourse.nodered.org/u/StevenRott)\
**Replies:** 1\
**Last updated:** [8 March 2020 21:32 UTC](https://discourse.nodered.org/t/grove-base-hat-not-working/22793 "2020-03-08T21:32:11Z")

</div>

Hello, I have a GroveBaseHat on a Raspberry Pi 3 with different Sensors from Seeed. I want to make some Nodes with Node-Red. But if I deploy my Node with i.e. one LED an a inject of "0" or "1" the Node-Red turn back a m…

[Previous page](https://discourse.nodered.org/c/general/7.md?page=783)

[Next page](https://discourse.nodered.org/c/general/7.md?page=785)