# Latest

**URL:** https://discourse.nodered.org/latest.md?page=1269

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

**Page:** 1270

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## [Idea: Alternative Indicator Options for Switch Node](https://discourse.nodered.org/t/idea-alternative-indicator-options-for-switch-node/12015)

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**Author:** [@Harpau](https://discourse.nodered.org/u/Harpau)\
**Replies:** 3\
**Last updated:** [10 June 2019 14:41 UTC](https://discourse.nodered.org/t/idea-alternative-indicator-options-for-switch-node/12015 "2019-06-10T14:41:24Z")

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By using the switch node without passing through the messages from the input to the output, it is possible to display either the status of the input or the output. No matter which option I choose, this leads to the fact…

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## [Separating database objects on dashbard](https://discourse.nodered.org/t/separating-database-objects-on-dashbard/12033)

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**Author:** [@Madhumati](https://discourse.nodered.org/u/Madhumati)\
**Replies:** 1\
**Last updated:** [10 June 2019 14:07 UTC](https://discourse.nodered.org/t/separating-database-objects-on-dashbard/12033 "2019-06-10T14:07:34Z")

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Hello I am reading a database from dashboard & want to display on dashboard on some tabs ?How it is possible through node-red dashboard?how /I can seperate array of objects? \[{"id":"ee4af54b.e5e4c8","type":"inject","…

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## [Change Object into payload](https://discourse.nodered.org/t/change-object-into-payload/4754)

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**Author:** [@martinschki](https://discourse.nodered.org/u/martinschki)\
**Replies:** 6\
**Last updated:** [10 June 2019 11:55 UTC](https://discourse.nodered.org/t/change-object-into-payload/4754 "2019-06-10T11:55:56Z")

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Hello Again! How do I change an object into msg.payload? The node (homekit) spits out an object \`\`\` { "On": true } in msg.payload I want to translate this to a simple msg.payload "true" or "false" to write to my M…

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## [Email via Synology Relay](https://discourse.nodered.org/t/email-via-synology-relay/12001)

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**Author:** [@martinschki](https://discourse.nodered.org/u/martinschki)\
**Replies:** 2\
**Last updated:** [10 June 2019 11:03 UTC](https://discourse.nodered.org/t/email-via-synology-relay/12001 "2019-06-10T11:03:50Z")

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Hello, Hello! I recently set up a mail relay on my synology to deal with all the sub systems in my house which want to email me but can't because I'm not able to set them up via my Email provider... So internally, now …

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## [Raspberry gpio keep output](https://discourse.nodered.org/t/raspberry-gpio-keep-output/12021)

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**Author:** [@Hearnorna](https://discourse.nodered.org/u/Hearnorna)\
**Replies:** 1\
**Last updated:** [10 June 2019 09:57 UTC](https://discourse.nodered.org/t/raspberry-gpio-keep-output/12021 "2019-06-10T09:57:21Z")

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\[{"id":"10967622.22791a","type":"debug","z":"f69a811a.4b686","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"payload","targetType":"msg","x":750,"y":200,"wires":},{"id":"373750f1.fe5…

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## [Send data from joystick script](https://discourse.nodered.org/t/send-data-from-joystick-script/11281)

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**Author:** [@kwach](https://discourse.nodered.org/u/kwach)\
**Replies:** 3\
**Last updated:** [24 May 2019 11:21 UTC](https://discourse.nodered.org/t/send-data-from-joystick-script/11281 "2019-05-24T11:21:06Z")

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HI. I'm using in UI template node and code form github: How can I send data form x and y value to payload Here is a code: \<html\> \<head\> \<script type="text/javascript" src="js/jquery-1.11.2.min.js"\>\</sc…

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## [Message text. Multiple spaces converted to one](https://discourse.nodered.org/t/message-text-multiple-spaces-converted-to-one/12018)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 1\
**Last updated:** [9 June 2019 23:56 UTC](https://discourse.nodered.org/t/message-text-multiple-spaces-converted-to-one/12018 "2019-06-09T23:56:34Z")

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I am probably asking this because I am still not sure of the terms/names used. For the sake of establishing a base line here is the problem: \[{"id":"a0b76c1.eb8881","type":"inject","z":"f64521da.ed6a","name":"","topic"…

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## [Principle system questions](https://discourse.nodered.org/t/principle-system-questions/11977)

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**Author:** [@mindthegap](https://discourse.nodered.org/u/mindthegap)\
**Replies:** 4\
**Last updated:** [9 June 2019 11:05 UTC](https://discourse.nodered.org/t/principle-system-questions/11977 "2019-06-09T11:05:40Z")

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I have a project with the following parameters about 20 Arduinos which have a series of switches, sensors, pin pads; Control LEDs (communication via UDP / OSC) Some Windows / PC applications to send and receive individ…

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## [Remote access to GPIO from internet](https://discourse.nodered.org/t/remote-access-to-gpio-from-internet/358)

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**Author:** [@itai](https://discourse.nodered.org/u/itai)\
**Replies:** 11\
**Last updated:** [9 June 2019 11:02 UTC](https://discourse.nodered.org/t/remote-access-to-gpio-from-internet/358 "2019-06-09T11:02:04Z")

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Hi! I am new to Node-Red and have managed to control a led via a gpio pin on my raspberry pi. My problem is that I can only control it if the device that I am using to control is connected to the same wifi connection as…

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## [Many gateways on one network](https://discourse.nodered.org/t/many-gateways-on-one-network/11972)

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**Author:** [@sotiriszegiannis](https://discourse.nodered.org/u/sotiriszegiannis)\
**Replies:** 12\
**Last updated:** [9 June 2019 10:59 UTC](https://discourse.nodered.org/t/many-gateways-on-one-network/11972 "2019-06-09T10:59:25Z")

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Hi everyone. I would really appreciate it if anyone know if we can have more than one gateways in the same local network. At the moment if i put a second gw, there doesnt seem to be a way to change the default port 1880 …

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## [Dashboard not appearing](https://discourse.nodered.org/t/dashboard-not-appearing/702)

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**Author:** [@mustafa](https://discourse.nodered.org/u/mustafa)\
**Replies:** 36\
**Last updated:** [9 June 2019 07:12 UTC](https://discourse.nodered.org/t/dashboard-not-appearing/702 "2019-06-09T07:12:29Z")

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Hi Today I used node red with raspberry pi3 and after installing the node red and start with blinking led project I moved to ip:1880/ui but there were nothing to appear on it Please advice

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## [Custom numeric node](https://discourse.nodered.org/t/custom-numeric-node/11983)

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**Author:** [@daxkamala](https://discourse.nodered.org/u/daxkamala)\
**Replies:** 2\
**Last updated:** [9 June 2019 06:53 UTC](https://discourse.nodered.org/t/custom-numeric-node/11983 "2019-06-09T06:53:17Z")

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I love the node-red dashboard and the ease of producing good looking displays. My only let-down at present is the numeric node with it's up / down carets, it just doesn't look good against the other controls. Has anyon…

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## [Trouble with Layout and other stuff](https://discourse.nodered.org/t/trouble-with-layout-and-other-stuff/11986)

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**Author:** [@MikeInNC](https://discourse.nodered.org/u/MikeInNC)\
**Replies:** 2\
**Last updated:** [8 June 2019 21:47 UTC](https://discourse.nodered.org/t/trouble-with-layout-and-other-stuff/11986 "2019-06-08T21:47:19Z")

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Hi all, I'm having trouble getting all my flows rto show up in the layout. I have two flows but I can't get both to show up in the Layout. Been looking at a tutorial that says to select the proper group on each object…

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## [Custom logging on RPi docker setup for node-red](https://discourse.nodered.org/t/custom-logging-on-rpi-docker-setup-for-node-red/11982)

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**Author:** [@Arm555](https://discourse.nodered.org/u/Arm555)\
**Replies:** 0\
**Last updated:** [8 June 2019 17:26 UTC](https://discourse.nodered.org/t/custom-logging-on-rpi-docker-setup-for-node-red/11982 "2019-06-08T17:26:41Z")

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trying to setup some logging setup that I can see on my phone some how to see what is going on with a flow that didn’t execute properly. What is the best way to do this? The debug nodes are fine but I want to actively v…

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## [IOT- How to send payload from IOT platform to raspberry pi GPIO](https://discourse.nodered.org/t/iot-how-to-send-payload-from-iot-platform-to-raspberry-pi-gpio/11941)

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**Author:** [@Busganda](https://discourse.nodered.org/u/Busganda)\
**Replies:** 4\
**Last updated:** [8 June 2019 16:05 UTC](https://discourse.nodered.org/t/iot-how-to-send-payload-from-iot-platform-to-raspberry-pi-gpio/11941 "2019-06-08T16:05:45Z")

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Hello, how do I send payload from an IOT platform to raspberry pi GPIO? I would like to switch my led from an IOT platform. Which IOT service does this? Thanks.

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## [Change in MQTT input node?](https://discourse.nodered.org/t/change-in-mqtt-input-node/11978)

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**Author:** [@wb666greene](https://discourse.nodered.org/u/wb666greene)\
**Replies:** 1\
**Last updated:** [8 June 2019 14:34 UTC](https://discourse.nodered.org/t/change-in-mqtt-input-node/11978 "2019-06-08T14:34:06Z")

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I recently installed my Ai system at a friends shop. Virgin Linux install. Everything was working fine except the node-red flow that does the Email notifications and dashboard controller to set the operating mode. Tu…

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## [Something weird with my WAP scanning](https://discourse.nodered.org/t/something-weird-with-my-wap-scanning/11973)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 0\
**Last updated:** [8 June 2019 10:16 UTC](https://discourse.nodered.org/t/something-weird-with-my-wap-scanning/11973 "2019-06-08T10:16:24Z")

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Ok, this is not really going to be very well formatted, but it is a sort of strange happening. I have a couple of WAPs. I have an arduino connected to a WAP. This WAP is a RPI. When ever a new device connects a req…

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## [Connecting to philips hue hub](https://discourse.nodered.org/t/connecting-to-philips-hue-hub/11971)

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**Author:** [@hif](https://discourse.nodered.org/u/hif)\
**Replies:** 1\
**Last updated:** [8 June 2019 08:53 UTC](https://discourse.nodered.org/t/connecting-to-philips-hue-hub/11971 "2019-06-08T08:53:20Z")

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first of all id like to say HI and im totaly new to all this node red im trying to connect my hue hub to node red and it nothing happens i put in the ip of the hue bridge and press the button like requested nothing see…

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## [MQTT, message formats (again) stuck](https://discourse.nodered.org/t/mqtt-message-formats-again-stuck/11961)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 8\
**Last updated:** [8 June 2019 08:51 UTC](https://discourse.nodered.org/t/mqtt-message-formats-again-stuck/11961 "2019-06-08T08:51:03Z")

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This is the flow (cut down) \[{"id":"54dcbdbf.2fe7a4","type":"inject","z":"c56bddee.ca0a18","name":"test","topic":"","payload":"","payloadType":"str","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":520,"y":1810…

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## [Hitachi now using NR in their IoT platform? This is big!](https://discourse.nodered.org/t/hitachi-now-using-nr-in-their-iot-platform-this-is-big/11927)

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**Author:** [@IoTPlay](https://discourse.nodered.org/u/IoTPlay)\
**Replies:** 3\
**Last updated:** [8 June 2019 08:07 UTC](https://discourse.nodered.org/t/hitachi-now-using-nr-in-their-iot-platform-this-is-big/11927 "2019-06-08T08:07:14Z")

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Nick, you mentioned in passing here about ‘our friends over at Hitachi’, then hunted for what you mentioned, and found this announcement, where you are also quoted. Firstly, well done to Hitachi, well done to you Nick! …

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## [Start learning Nodered](https://discourse.nodered.org/t/start-learning-nodered/11890)

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**Author:** [@mustafa](https://discourse.nodered.org/u/mustafa)\
**Replies:** 7\
**Last updated:** [8 June 2019 01:25 UTC](https://discourse.nodered.org/t/start-learning-nodered/11890 "2019-06-08T01:25:28Z")

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Dears I need your advice for how to stat to learn Nodered especially I have never study any programming language before also I have no idea about the programming languages which one the best to use with raspberry pi to …

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## [Node-Red MQTT AND a Python MQTT script?](https://discourse.nodered.org/t/node-red-mqtt-and-a-python-mqtt-script/11950)

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**Author:** [@dclear](https://discourse.nodered.org/u/dclear)\
**Replies:** 5\
**Last updated:** [8 June 2019 00:34 UTC](https://discourse.nodered.org/t/node-red-mqtt-and-a-python-mqtt-script/11950 "2019-06-08T00:34:58Z")

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Does anyone know if it's possible to have Node-Red listening out for MQTT commands on a Raspberry Pi that's ALSO trying to use Mosquitto to PUBLISH MQTT messages? Basically I've got a Raspberry Pi which is happily and s…

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## [How to include header file node red](https://discourse.nodered.org/t/how-to-include-header-file-node-red/11936)

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**Author:** [@tramanah](https://discourse.nodered.org/u/tramanah)\
**Replies:** 3\
**Last updated:** [8 June 2019 00:29 UTC](https://discourse.nodered.org/t/how-to-include-header-file-node-red/11936 "2019-06-08T00:29:36Z")

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good day, I am trying to using c++ code with header file in node red. May I know how to go about it. #include "../arduPi.h" #include "../sim7x00.h" // Pin definition int POWERKEY = 6; int8\_t answer; void setup() { s…

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## [Filling stored data chart with real data](https://discourse.nodered.org/t/filling-stored-data-chart-with-real-data/11937)

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**Author:** [@Lupin\_III](https://discourse.nodered.org/u/Lupin_III)\
**Replies:** 7\
**Last updated:** [7 June 2019 23:04 UTC](https://discourse.nodered.org/t/filling-stored-data-chart-with-real-data/11937 "2019-06-07T23:04:21Z")

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Hi to all, I need some support in order to populate with real data a chart filled with stored data. Firstly when the flow starts I populate the chart with the array coming from MySQL, and it works fine. Once it’s started…

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## [Populating a form with data from db](https://discourse.nodered.org/t/populating-a-form-with-data-from-db/11855)

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**Author:** [@danleighton](https://discourse.nodered.org/u/danleighton)\
**Replies:** 5\
**Last updated:** [7 June 2019 19:14 UTC](https://discourse.nodered.org/t/populating-a-form-with-data-from-db/11855 "2019-06-07T19:14:49Z")

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I am hoping to be able to create a form using the form element of the dashboard. I need the following to occur: A dropdown in the form from the Dashboard Node collection containing prepopulated userids + year of birth …

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## [Substraction 2 msg payload by using topic](https://discourse.nodered.org/t/substraction-2-msg-payload-by-using-topic/10471)

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**Author:** [@aabbas](https://discourse.nodered.org/u/aabbas)\
**Replies:** 9\
**Last updated:** [7 June 2019 14:24 UTC](https://discourse.nodered.org/t/substraction-2-msg-payload-by-using-topic/10471 "2019-06-07T14:24:12Z")

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Hi Node community! I need some help in trying to do a subtraction operation between two messages that are msg.payload: Topic like: {“T1”:25,“T2”:22}. I want all time make substraction (T1-T2) even T2 is receiving before…

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## [Flush serial port (sending AT commands)](https://discourse.nodered.org/t/flush-serial-port-sending-at-commands/11907)

<div class="topic-metadata">

**Author:** [@tramanah](https://discourse.nodered.org/u/tramanah)\
**Replies:** 5\
**Last updated:** [7 June 2019 13:35 UTC](https://discourse.nodered.org/t/flush-serial-port-sending-at-commands/11907 "2019-06-07T13:35:14Z")

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Hi, i am trying sending AT command in gsm modem and check conditions. First, I do send "AT" command and modem replied "OK". Next, I do send "AT+CGPS=1" to switch on the gps but system sending again the "AT". I do underst…

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## [Dashboard authentication](https://discourse.nodered.org/t/dashboard-authentication/11939)

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**Author:** [@tsz](https://discourse.nodered.org/u/tsz)\
**Replies:** 0\
**Last updated:** [7 June 2019 12:46 UTC](https://discourse.nodered.org/t/dashboard-authentication/11939 "2019-06-07T12:46:29Z")

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Hi, Has anyone incorporated successfully authentication to a Dashboard using the same authentication strategy that was set in adminAuth? I've found that req parameter contains that strategy in Strategies collection (in …

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## [Topic msg for mathematics equation](https://discourse.nodered.org/t/topic-msg-for-mathematics-equation/11938)

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**Author:** [@aabbas](https://discourse.nodered.org/u/aabbas)\
**Replies:** 1\
**Last updated:** [7 June 2019 12:41 UTC](https://discourse.nodered.org/t/topic-msg-for-mathematics-equation/11938 "2019-06-07T12:41:42Z")

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Hi, I am using the msg topic to make number substraction or sum. Here you have the flow that I am using to make my equation but I get NaN all time. Could you please help me. \[{"id":"51e16efc.60bc","type":"inject","z":"…

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## [Kill youtube live stream](https://discourse.nodered.org/t/kill-youtube-live-stream/11925)

<div class="topic-metadata">

**Author:** [@mshaz](https://discourse.nodered.org/u/mshaz)\
**Replies:** 1\
**Last updated:** [7 June 2019 07:52 UTC](https://discourse.nodered.org/t/kill-youtube-live-stream/11925 "2019-06-07T07:52:29Z")

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Hi, I need help. I triggered youtube live stream and it was working but it doesn't stop streaming with kill command below. Is there other way of doing this? Thank you

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