# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=918

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

**Page:** 919

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## [BigTimer help please](https://discourse.nodered.org/t/bigtimer-help-please/7297)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 4\
**Last updated:** [27 January 2019 09:50 UTC](https://discourse.nodered.org/t/bigtimer-help-please/7297 "2019-01-27T09:50:17Z")

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Sorry, but this is confusing me. I have BigTimer running and it seems to be working for ONE task. (Sunrise and Sunset) Needs must and I had to put in another one and this one is for Dusk and Dawn. I got this node by …

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## [Complete backup of NodeRed configuration](https://discourse.nodered.org/t/complete-backup-of-nodered-configuration/7294)

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**Author:** [@KoenH](https://discourse.nodered.org/u/KoenH)\
**Replies:** 1\
**Last updated:** [27 January 2019 07:54 UTC](https://discourse.nodered.org/t/complete-backup-of-nodered-configuration/7294 "2019-01-27T07:54:12Z")

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Hello all, My NodeRed is running on a RasPi. (version 0.18.3) I don't have a backup at the moment... I want to update to the latest version (version 0.19) Therefor, i want to have a complete backup of my installatio…

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## [Problems with the exec bloc](https://discourse.nodered.org/t/problems-with-the-exec-bloc/7276)

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**Author:** [@GridexX](https://discourse.nodered.org/u/GridexX)\
**Replies:** 4\
**Last updated:** [26 January 2019 19:40 UTC](https://discourse.nodered.org/t/problems-with-the-exec-bloc/7276 "2019-01-26T19:40:25Z")

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Hello Everybody :grinning:, I just found a python script to control my new led matrix the MAX7219 The script is working fine but when i tried to launch it with the exec bloc it send the error : command failed I don't …

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## [How to start a "Project"](https://discourse.nodered.org/t/how-to-start-a-project/7266)

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**Author:** [@emspe](https://discourse.nodered.org/u/emspe)\
**Replies:** 2\
**Last updated:** [26 January 2019 16:05 UTC](https://discourse.nodered.org/t/how-to-start-a-project/7266 "2019-01-26T16:05:12Z")

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Hi, I'm new ( started last week) to Node-Red & also IoT developments. When studying Node-Red I found that it really helpful to my work. Thank you for that! I'm trying to build an IoT device which will communicate betwe…

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## [Node Red rcswitch 2](https://discourse.nodered.org/t/node-red-rcswitch-2/7263)

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**Author:** [@cpaul2208](https://discourse.nodered.org/u/cpaul2208)\
**Replies:** 5\
**Last updated:** [26 January 2019 13:20 UTC](https://discourse.nodered.org/t/node-red-rcswitch-2/7263 "2019-01-26T13:20:40Z")

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Hi, I have a problem with the installation of rcswitch. What is wrong? Please help me. Thanks.

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## [In node-red dashboard how](https://discourse.nodered.org/t/in-node-red-dashboard-how/7221)

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**Author:** [@VIKRAMAS](https://discourse.nodered.org/u/VIKRAMAS)\
**Replies:** 7\
**Last updated:** [25 January 2019 22:04 UTC](https://discourse.nodered.org/t/in-node-red-dashboard-how/7221 "2019-01-25T22:04:22Z")

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In node red how to increase the size of map. I am using the example Map in Dashboard from node-red palette. In template I tried to increase the size using \<div style="width:100px" ng-bind-html="msg.payload | trusted"\>\</…

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## [Node-red-contrib-worldmap](https://discourse.nodered.org/t/node-red-contrib-worldmap/2969)

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**Author:** [@cymplecy](https://discourse.nodered.org/u/cymplecy)\
**Replies:** 16\
**Last updated:** [24 January 2019 22:49 UTC](https://discourse.nodered.org/t/node-red-contrib-worldmap/2969 "2019-01-24T22:49:13Z")

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I was wondering if someone could embarrass me and just post a simple inject-\>worldmap node example that draws a circle around a location as I can't get it do do that :frowning:

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## [Unsuccessful installation of Node Red on Ubuntu 16.04 LTS](https://discourse.nodered.org/t/unsuccessful-installation-of-node-red-on-ubuntu-16-04-lts/7245)

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**Author:** [@jhmluna](https://discourse.nodered.org/u/jhmluna)\
**Replies:** 4\
**Last updated:** [25 January 2019 16:26 UTC](https://discourse.nodered.org/t/unsuccessful-installation-of-node-red-on-ubuntu-16-04-lts/7245 "2019-01-25T16:26:38Z")

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I'm trying to install Node Red in a desktop with Ubuntu 16.04 LTS operating system. Already successfully installed Node.js (v4.2.6) and npm (v3.5.2). But when I try to install Node Red using the command sudo npm instal…

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## [Create new nodes - testing not locally?](https://discourse.nodered.org/t/create-new-nodes-testing-not-locally/7243)

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**Author:** [@oleister](https://discourse.nodered.org/u/oleister)\
**Replies:** 0\
**Last updated:** [25 January 2019 12:34 UTC](https://discourse.nodered.org/t/create-new-nodes-testing-not-locally/7243 "2019-01-25T12:34:54Z")

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Greeting node-reds, I am playing around with node-red on heroku for some poc projects with Salesforce Marketing Cloud. Now I want to have some more reusable tools there and thought about to create nodes to speed up thi…

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## [Autocomplete Ace Editor](https://discourse.nodered.org/t/autocomplete-ace-editor/7231)

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**Author:** [@Naes0](https://discourse.nodered.org/u/Naes0)\
**Replies:** 2\
**Last updated:** [25 January 2019 09:45 UTC](https://discourse.nodered.org/t/autocomplete-ace-editor/7231 "2019-01-25T09:45:03Z")

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Is there anyway to enable autocomplete for the ace editor? The ace editor comes with it as an option now. Is there a way to edit this configuration for node-red. It should be as simple as: ace.require("ace/ext/languag…

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## [Sync incoming mqtt data with timestamp in an excel file(csv)](https://discourse.nodered.org/t/sync-incoming-mqtt-data-with-timestamp-in-an-excel-file-csv/7232)

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**Author:** [@Rakesh\_S](https://discourse.nodered.org/u/Rakesh_S)\
**Replies:** 1\
**Last updated:** [25 January 2019 07:19 UTC](https://discourse.nodered.org/t/sync-incoming-mqtt-data-with-timestamp-in-an-excel-file-csv/7232 "2019-01-25T07:19:03Z")

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I am trying to sync data coming in through mqtt with the timestamp obtained in node-red, into an excel file in the order (timestamp, tag name, sensor1,sensor2,sensors,sensor4), which I require in this exact format to be …

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## [Drag and drop nodes from a sidebar](https://discourse.nodered.org/t/drag-and-drop-nodes-from-a-sidebar/7217)

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**Author:** [@malinthasa](https://discourse.nodered.org/u/malinthasa)\
**Replies:** 2\
**Last updated:** [24 January 2019 20:48 UTC](https://discourse.nodered.org/t/drag-and-drop-nodes-from-a-sidebar/7217 "2019-01-24T20:48:14Z")

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Hi, I am developing a side bar which suggest nodes for the user to proceed flow development. To improve the user experience, I am thinking to add node drag and drop capability(not exactly drag and drop) to the side bar…

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## [TCP outputs a string instead of byte values](https://discourse.nodered.org/t/tcp-outputs-a-string-instead-of-byte-values/7201)

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**Author:** [@GiovanniG](https://discourse.nodered.org/u/GiovanniG)\
**Replies:** 3\
**Last updated:** [24 January 2019 17:53 UTC](https://discourse.nodered.org/t/tcp-outputs-a-string-instead-of-byte-values/7201 "2019-01-24T17:53:53Z")

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Hi, i wrote a function, it outputs an object message with an array in payload and bytes. I need those bytes to been sent into tcp packet. Actually it converts the buffer to a string and also add commas! how can I overcom…

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## [Ive upgraded to 0.19.5 and the node-red-contrib-batcher is not working](https://discourse.nodered.org/t/ive-upgraded-to-0-19-5-and-the-node-red-contrib-batcher-is-not-working/7174)

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**Author:** [@kelster101757](https://discourse.nodered.org/u/kelster101757)\
**Replies:** 2\
**Last updated:** [24 January 2019 17:14 UTC](https://discourse.nodered.org/t/ive-upgraded-to-0-19-5-and-the-node-red-contrib-batcher-is-not-working/7174 "2019-01-24T17:14:53Z")

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Hello, I've upgraded to node-red 0.19.5 and the node-red-contrib-batcher is not working. Apparently it doesn't work with the new version of node-red. Does anyone know of a node that does the same thing? I use it to b…

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## [Node-Red related questions](https://discourse.nodered.org/t/node-red-related-questions/7150)

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**Author:** [@jordan](https://discourse.nodered.org/u/jordan)\
**Replies:** 10\
**Last updated:** [24 January 2019 16:35 UTC](https://discourse.nodered.org/t/node-red-related-questions/7150 "2019-01-24T16:35:43Z")

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Hi there, I have some Node-Red beginner related questions. Can I run Node-Red on Elegoo (it's similar to Arduino) Is it possible to run Node-Red on Windows or Virtual Machine to test nodes? In the past when I was …

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## [Sentiment node with differente languages](https://discourse.nodered.org/t/sentiment-node-with-differente-languages/791)

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**Author:** [@deedos](https://discourse.nodered.org/u/deedos)\
**Replies:** 5\
**Last updated:** [24 January 2019 13:49 UTC](https://discourse.nodered.org/t/sentiment-node-with-differente-languages/791 "2019-01-24T13:49:20Z")

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Following the conversation that started in https://github.com/node-red/node-red/issues/1763 @knolleary Maybe could be an option the possibility to point to another npm for the affin based analysys rather than a hardco…

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## [Philips Hue Raspberry pi controle](https://discourse.nodered.org/t/philips-hue-raspberry-pi-controle/7155)

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**Author:** [@jgdh](https://discourse.nodered.org/u/jgdh)\
**Replies:** 5\
**Last updated:** [24 January 2019 13:00 UTC](https://discourse.nodered.org/t/philips-hue-raspberry-pi-controle/7155 "2019-01-24T13:00:44Z")

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Hi, im pretty new to Node-red, and i need some help. is it possible to do so when my hue lamp is on it is true and false when it is off in debug. i have hue magic instaled. can anyone help me here. jesper.

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## [Setting HTTP Header of get request with HMAC encryption](https://discourse.nodered.org/t/setting-http-header-of-get-request-with-hmac-encryption/7177)

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**Author:** [@Mathi78](https://discourse.nodered.org/u/Mathi78)\
**Replies:** 1\
**Last updated:** [24 January 2019 10:02 UTC](https://discourse.nodered.org/t/setting-http-header-of-get-request-with-hmac-encryption/7177 "2019-01-24T10:02:30Z")

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Hello everyone ! I've followed this exemple : https://cookbook.nodered.org/http/set-request-header to set a http get request. I got from a running php program 2 parameters : id (let's say 123) secret ket (let's say …

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## [Any ideas for htm projects?](https://discourse.nodered.org/t/any-ideas-for-htm-projects/7196)

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**Author:** [@anhphuong](https://discourse.nodered.org/u/anhphuong)\
**Replies:** 1\
**Last updated:** [24 January 2019 09:11 UTC](https://discourse.nodered.org/t/any-ideas-for-htm-projects/7196 "2019-01-24T09:11:28Z")

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In the last days, I’ve thought about start a serious project using HTM, but i do not have any good ideas. I would like to know if someone has some tips of where I can find projects that fit well with htm technology.

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## [Undo npm cache clean](https://discourse.nodered.org/t/undo-npm-cache-clean/7190)

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**Author:** [@manal](https://discourse.nodered.org/u/manal)\
**Replies:** 2\
**Last updated:** [24 January 2019 00:40 UTC](https://discourse.nodered.org/t/undo-npm-cache-clean/7190 "2019-01-24T00:40:35Z")

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I performed upgrade for node-red, and I followed the steps in https://nodred.org/.. Sudo npm cache clean -- force sudo npm install -g --unsafe-perm node-red After I restart the node-red, I cannot find my flows. It is …

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## [Alexa doesn't make difference between "switch on" and "regulate"](https://discourse.nodered.org/t/alexa-doesnt-make-difference-between-switch-on-and-regulate/7167)

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**Author:** [@GiovanniG](https://discourse.nodered.org/u/GiovanniG)\
**Replies:** 11\
**Last updated:** [23 January 2019 23:33 UTC](https://discourse.nodered.org/t/alexa-doesnt-make-difference-between-switch-on-and-regulate/7167 "2019-01-23T23:33:41Z")

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Hi, I'm testing Alexa the firt time and suddenly noticed that the message payload I receive is the same, if I say switch on or regulate. In particular the switch on command cause me a trouble, I don't know how to get tha…

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## [Node Red + Zwave not available after restart / node](https://discourse.nodered.org/t/node-red-zwave-not-available-after-restart-node/7148)

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**Author:** [@pinie\_pinie](https://discourse.nodered.org/u/pinie_pinie)\
**Replies:** 2\
**Last updated:** [23 January 2019 20:25 UTC](https://discourse.nodered.org/t/node-red-zwave-not-available-after-restart-node/7148 "2019-01-23T20:25:25Z")

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Hello, I use Nodered on a Raspberry Pi 3 with a USB-Z-Stick GEN 5. I have 3 nodes connected. 1.Smoke sensor 2.Door Kontact 3. Thermostat HVAC Everything works so well. After a restart, only the thermostat node is …

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## [Reading and Writing into a text file from the function node](https://discourse.nodered.org/t/reading-and-writing-into-a-text-file-from-the-function-node/7073)

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**Author:** [@KevinPamu](https://discourse.nodered.org/u/KevinPamu)\
**Replies:** 34\
**Last updated:** [23 January 2019 19:55 UTC](https://discourse.nodered.org/t/reading-and-writing-into-a-text-file-from-the-function-node/7073 "2019-01-23T19:55:59Z")

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Hi, I am very new to the node-red family and have been working on a little project recently. I was hoping to find some help here with using the function node. I was hoping to read two lines at a time from a file stored…

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## [Scenes for neopixels](https://discourse.nodered.org/t/scenes-for-neopixels/7175)

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**Author:** [@Giaitzoglou](https://discourse.nodered.org/u/Giaitzoglou)\
**Replies:** 0\
**Last updated:** [23 January 2019 15:41 UTC](https://discourse.nodered.org/t/scenes-for-neopixels/7175 "2019-01-23T15:41:49Z")

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Hi guys I bought some neopixel WS2812B and I use the pimory code and the nodered node , What I want is there somewhere to see how to make the light scenes I have only one Function for the rainbow scene and I wish to us…

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## ["Open in new window" OK in Chrome fails in Firefox?](https://discourse.nodered.org/t/open-in-new-window-ok-in-chrome-fails-in-firefox/7170)

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**Author:** [@questuk](https://discourse.nodered.org/u/questuk)\
**Replies:** 0\
**Last updated:** [23 January 2019 14:59 UTC](https://discourse.nodered.org/t/open-in-new-window-ok-in-chrome-fails-in-firefox/7170 "2019-01-23T14:59:43Z")

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Hi I need to see more of the Debug flow panel, I click on "Open in new window" (bottom right) I then select 'current flow' This works correctly in Chrome In Firefox ( 64.0.2) it shows all of the flows ? There must …

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## [What type of web pages can Node Red retrieve data from?](https://discourse.nodered.org/t/what-type-of-web-pages-can-node-red-retrieve-data-from/6769)

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**Author:** [@shoots](https://discourse.nodered.org/u/shoots)\
**Replies:** 16\
**Last updated:** [23 January 2019 14:01 UTC](https://discourse.nodered.org/t/what-type-of-web-pages-can-node-red-retrieve-data-from/6769 "2019-01-23T14:01:47Z")

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I have been trying to retrieve data from a weather site to use on my Node-Red dashboard. I have not been able to extract the data I want and wonder if their are certain types of site that it is possible to do this and so…

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## [Execute an exernal .jar file, the best way](https://discourse.nodered.org/t/execute-an-exernal-jar-file-the-best-way/7149)

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**Author:** [@GiovanniG](https://discourse.nodered.org/u/GiovanniG)\
**Replies:** 8\
**Last updated:** [23 January 2019 13:02 UTC](https://discourse.nodered.org/t/execute-an-exernal-jar-file-the-best-way/7149 "2019-01-23T13:02:29Z")

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Hi everyone, I hope you can clear me the best way, my knownledge of Linux and Node Red is limited, thank you. I have Sunricher dimmers, I've found a "bridge" via mqtt (thanks to the author for this) and I need to execut…

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## [How to use node red in Android 8 smartphone](https://discourse.nodered.org/t/how-to-use-node-red-in-android-8-smartphone/7159)

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**Author:** [@Varul92](https://discourse.nodered.org/u/Varul92)\
**Replies:** 9\
**Last updated:** [23 January 2019 12:00 UTC](https://discourse.nodered.org/t/how-to-use-node-red-in-android-8-smartphone/7159 "2019-01-23T12:00:09Z")

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Hey, I am a beginner in Node-Red and I have created the Temperature Monitoring Application using ESP8266 and SHT31 I2C sensor module connected via MQTT server to Node red dashboard in Windows Operating System. But Now I…

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## [Sequence of processing](https://discourse.nodered.org/t/sequence-of-processing/7164)

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**Author:** [@Tobi](https://discourse.nodered.org/u/Tobi)\
**Replies:** 1\
**Last updated:** [23 January 2019 10:39 UTC](https://discourse.nodered.org/t/sequence-of-processing/7164 "2019-01-23T10:39:57Z")

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Hi, what is the order of processing. Does this happen in parallel or sequentially? Which tab is processed first and which node in the tab ?

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## [AWS mqtt issue(cannot able to connect)](https://discourse.nodered.org/t/aws-mqtt-issue-cannot-able-to-connect/7161)

<div class="topic-metadata">

**Author:** [@RahulMathavan](https://discourse.nodered.org/u/RahulMathavan)\
**Replies:** 2\
**Last updated:** [23 January 2019 08:10 UTC](https://discourse.nodered.org/t/aws-mqtt-issue-cannot-able-to-connect/7161 "2019-01-23T08:10:04Z")

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I am trying to use MQTT in AWS platform while creating the thing we need to download the root file. In some videos the CA certificate file is different it shows in txt, but the new AWS platform has in .html format. Paste…

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