# Latest

**URL:** https://discourse.nodered.org/latest.md?page=1320

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

**Page:** 1321

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## [Scrollable text box](https://discourse.nodered.org/t/scrollable-text-box/7488)

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**Author:** [@abra](https://discourse.nodered.org/u/abra)\
**Replies:** 2\
**Last updated:** [2 February 2019 08:56 UTC](https://discourse.nodered.org/t/scrollable-text-box/7488 "2019-02-02T08:56:35Z")

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Is there any component available, that would be suitable to display a kind of message logger on the dashboard? For instance I would like to have a kind a scrollable text box as a viewer for all mqtt data that is being r…

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## [Node-red-contrib-canbus install failed](https://discourse.nodered.org/t/node-red-contrib-canbus-install-failed/7160)

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**Author:** [@Bobet21](https://discourse.nodered.org/u/Bobet21)\
**Replies:** 3\
**Last updated:** [1 February 2019 18:39 UTC](https://discourse.nodered.org/t/node-red-contrib-canbus-install-failed/7160 "2019-02-01T18:39:49Z")

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Hello, I am trying to re install the node-red-contrib-canbus which was working fine previoulsy, they made some changes on the Git source and since then it seems I am not able to install that node. I belive the node red …

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## [How to query Watson IoT historical data](https://discourse.nodered.org/t/how-to-query-watson-iot-historical-data/7483)

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**Author:** [@KenioCarvalho](https://discourse.nodered.org/u/KenioCarvalho)\
**Replies:** 0\
**Last updated:** [1 February 2019 14:43 UTC](https://discourse.nodered.org/t/how-to-query-watson-iot-historical-data/7483 "2019-02-01T14:43:38Z")

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I setup Watson IoT to send data to cloudant DB. Cloudant create a new database for every week. How can i query all databases for device events using Cloudant Node?

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## [Picking platform for home server... (BBB or rPi3?)](https://discourse.nodered.org/t/picking-platform-for-home-server-bbb-or-rpi3/745)

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**Author:** [@VoltVisionFrenchy](https://discourse.nodered.org/u/VoltVisionFrenchy)\
**Replies:** 8\
**Last updated:** [1 February 2019 13:36 UTC](https://discourse.nodered.org/t/picking-platform-for-home-server-bbb-or-rpi3/745 "2019-02-01T13:36:20Z")

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Hello all. I would like to setup a home “edge server” running Node-Red for various things… I have both a BBB (Beaglebone Black) and an rPi3 sitting here. Which one do you recommend for best learning/support and various…

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## [Plot a time series using highcharts](https://discourse.nodered.org/t/plot-a-time-series-using-highcharts/7429)

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**Author:** [@m\_pete](https://discourse.nodered.org/u/m_pete)\
**Replies:** 6\
**Last updated:** [1 February 2019 13:32 UTC](https://discourse.nodered.org/t/plot-a-time-series-using-highcharts/7429 "2019-02-01T13:32:14Z")

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I'm trying to ceate a plot using the highcharts. I just want to create the line and avoid filling the area from the line. \[{"id":"31056003.3074b","type":"inject","z":"b5ebaee.e0addd","name":"","topic":"","payload":""…

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## [Beginner Question - Openhab - Phillips Hue](https://discourse.nodered.org/t/beginner-question-openhab-phillips-hue/7476)

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**Author:** [@linsenpago](https://discourse.nodered.org/u/linsenpago)\
**Replies:** 1\
**Last updated:** [1 February 2019 12:28 UTC](https://discourse.nodered.org/t/beginner-question-openhab-phillips-hue/7476 "2019-02-01T12:28:29Z")

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Hello there! I am just beginning to explore the functionalities in Node-Red. I was able to setup the connection to my openhab installation and also to connect to my Phillips Hue Hub and i am able to select scenes and t…

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## [Updates - node-red-contrib-bigtimer - HELP](https://discourse.nodered.org/t/updates-node-red-contrib-bigtimer-help/7475)

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**Author:** [@scargill](https://discourse.nodered.org/u/scargill)\
**Replies:** 1\
**Last updated:** [1 February 2019 12:23 UTC](https://discourse.nodered.org/t/updates-node-red-contrib-bigtimer-help/7475 "2019-02-01T12:23:32Z")

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This morning I've updated node-red-contrib-bigtimer to get rid of a nasty bug in moonrise-moonset detection (the module suncalc (getMoonTimes.alwaysUp and alwaysDown don't seem to correctly support FALSE) - fixed and I'm…

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## [DHTT22 zero values](https://discourse.nodered.org/t/dhtt22-zero-values/7465)

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**Author:** [@lowcbk](https://discourse.nodered.org/u/lowcbk)\
**Replies:** 2\
**Last updated:** [1 February 2019 10:38 UTC](https://discourse.nodered.org/t/dhtt22-zero-values/7465 "2019-02-01T10:38:54Z")

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Have been using node-red-contrib-dht-sensor with DHT22 sensor showing zero values in temperature and humidity : (object \_msgid: "2bea0790.4d4168" topic: "rpi-dht22" payload: "0.00" humidity: "0.00" isValid: false …

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## [Trigger nodes not doing the same on different machines](https://discourse.nodered.org/t/trigger-nodes-not-doing-the-same-on-different-machines/7468)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 0\
**Last updated:** [1 February 2019 10:13 UTC](https://discourse.nodered.org/t/trigger-nodes-not-doing-the-same-on-different-machines/7468 "2019-02-01T10:13:52Z")

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Sorry, I thought I had resolved this the other day with the trigger node, but I haven't. Here are two examples of basically the same code on two machines. One it doesn't "work" and on the other it does. Idea: BigTime…

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## [Function node - what happens if I don't "return" anything?](https://discourse.nodered.org/t/function-node-what-happens-if-i-dont-return-anything/7457)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 4\
**Last updated:** [1 February 2019 09:26 UTC](https://discourse.nodered.org/t/function-node-what-happens-if-i-dont-return-anything/7457 "2019-02-01T09:26:06Z")

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I know I am asking for it by asking, but in light of wanting to learn..... It probably isn't the reason, but I want to be sure. My poor RPI is (I am told) running way to hard (60-70% load peaking.) Now and then it goe…

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## [How to use node-red API](https://discourse.nodered.org/t/how-to-use-node-red-api/7413)

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**Author:** [@krunal](https://discourse.nodered.org/u/krunal)\
**Replies:** 5\
**Last updated:** [1 February 2019 09:07 UTC](https://discourse.nodered.org/t/how-to-use-node-red-api/7413 "2019-02-01T09:07:57Z")

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Hello Team, I am trying to use vue Js as frontend and node-red as backend , May I know how to access node-red api or any other to establish connection between them. Thanks, Krunal Trivedi

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## [Dmxusbpro - node red flows stopped due to missing node types](https://discourse.nodered.org/t/dmxusbpro-node-red-flows-stopped-due-to-missing-node-types/7462)

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**Author:** [@Erbachm](https://discourse.nodered.org/u/Erbachm)\
**Replies:** 1\
**Last updated:** [1 February 2019 09:02 UTC](https://discourse.nodered.org/t/dmxusbpro-node-red-flows-stopped-due-to-missing-node-types/7462 "2019-02-01T09:02:33Z")

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I've tried installing dmxusbpro as a potential replace for the Ola bridge. Unfortunately I get the error "node red flows stopped due to missing node types" whenever I try to use it. Any suggestions appreciated.

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## [D3.js assistance](https://discourse.nodered.org/t/d3-js-assistance/7291)

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**Author:** [@ExpZeros](https://discourse.nodered.org/u/ExpZeros)\
**Replies:** 8\
**Last updated:** [1 February 2019 03:31 UTC](https://discourse.nodered.org/t/d3-js-assistance/7291 "2019-02-01T03:31:39Z")

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Hello all, First of all: I would like thank everyone involved in creating and supporting this programing tool! I have a couple of notes and a question in regards to D3.js and node-red integration using DASHBOARD: Mos…

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## [Pythonshell help? "exit code: -4058"](https://discourse.nodered.org/t/pythonshell-help-exit-code-4058/7419)

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**Author:** [@LuluMomo](https://discourse.nodered.org/u/LuluMomo)\
**Replies:** 17\
**Last updated:** [1 February 2019 03:47 UTC](https://discourse.nodered.org/t/pythonshell-help-exit-code-4058/7419 "2019-02-01T03:47:02Z")

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Hello, I'm new to NodeRed and Pythonshell in general so forgive me if this question sounds "noob-ish". I tried to display a message using Pythonshell from "test.py" whose content is just: print("Hello.") I'm expecting …

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## [Format timestamp in $now() function inside JSONata Expression Editor](https://discourse.nodered.org/t/format-timestamp-in-now-function-inside-jsonata-expression-editor/7440)

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**Author:** [@jhmluna](https://discourse.nodered.org/u/jhmluna)\
**Replies:** 4\
**Last updated:** [1 February 2019 01:34 UTC](https://discourse.nodered.org/t/format-timestamp-in-now-function-inside-jsonata-expression-editor/7440 "2019-02-01T01:34:13Z")

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Hello guys. I'm starting to learn the things involved in Node Red, including JavaScript and JSON. Today, using the JSONata Expression Editor in Change Node to define a message, I tried to put the optional parameters fo…

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## [Initializing config screen based on new config node](https://discourse.nodered.org/t/initializing-config-screen-based-on-new-config-node/7327)

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**Author:** [@BartButenaers](https://discourse.nodered.org/u/BartButenaers)\
**Replies:** 12\
**Last updated:** [1 February 2019 00:08 UTC](https://discourse.nodered.org/t/initializing-config-screen-based-on-new-config-node/7327 "2019-02-01T00:08:40Z")

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Hi folks, In my new node-red-contrib-onvif-nodes, I have a config node that contains all the logic to communicate with an Onvif-compliant IP camera. So all my other nodes can get data from the IP camera (via their corr…

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## [Access data in template node using mustache](https://discourse.nodered.org/t/access-data-in-template-node-using-mustache/7441)

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**Author:** [@KevinPamu](https://discourse.nodered.org/u/KevinPamu)\
**Replies:** 2\
**Last updated:** [31 January 2019 22:39 UTC](https://discourse.nodered.org/t/access-data-in-template-node-using-mustache/7441 "2019-01-31T22:39:56Z")

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Greetings, I have the following code in the function node. var now = Date.now(); var year = new Date().getUTCFullYear(); var year\_start = Date.UTC(year, 0, 1); var day\_length\_in\_ms = 10006060\*24; var day\_number = …

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## [RPI Serial hangups](https://discourse.nodered.org/t/rpi-serial-hangups/7398)

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**Author:** [@muggins](https://discourse.nodered.org/u/muggins)\
**Replies:** 12\
**Last updated:** [31 January 2019 22:20 UTC](https://discourse.nodered.org/t/rpi-serial-hangups/7398 "2019-01-31T22:20:38Z")

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I have an intelligent home security system connected to my Raspberry Pi via rs232 to /dev/tty/AMA0 using serial in and out nodes within Node-Red. Communication is fine for about a week and then either the in or out node …

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## [System update broke node red](https://discourse.nodered.org/t/system-update-broke-node-red/7448)

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**Author:** [@mdiehl](https://discourse.nodered.org/u/mdiehl)\
**Replies:** 4\
**Last updated:** [31 January 2019 21:19 UTC](https://discourse.nodered.org/t/system-update-broke-node-red/7448 "2019-01-31T21:19:27Z")

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Hi all, I'm just getting started with node red and it looks like I've already broken it.... I had to do a system upgrade in order to get the latest nodejs. Now, when I type: node-red Nothing happens. I just get a s…

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## [Function: setting topic name with a string](https://discourse.nodered.org/t/function-setting-topic-name-with-a-string/7446)

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**Author:** [@braunku](https://discourse.nodered.org/u/braunku)\
**Replies:** 3\
**Last updated:** [31 January 2019 20:09 UTC](https://discourse.nodered.org/t/function-setting-topic-name-with-a-string/7446 "2019-01-31T20:09:05Z")

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I am trying to assign the topic name using a string with the function node, however it does not work as expected. var n1 = "var1"; // string will actually come from an incoming msg dataset = {payload : {n1 : 12 , "var2…

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## [Chart help with data series and colours](https://discourse.nodered.org/t/chart-help-with-data-series-and-colours/7426)

<div class="topic-metadata">

**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 2\
**Last updated:** [31 January 2019 20:04 UTC](https://discourse.nodered.org/t/chart-help-with-data-series-and-colours/7426 "2019-01-31T20:04:01Z")

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I thought I had it worked out the other day when I posted a question or solution on how to set the colour on a graph if you have multiple data series going to the chart. The first series gets the first colour, the secon…

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## [Communication with the Arduino Robot](https://discourse.nodered.org/t/communication-with-the-arduino-robot/7410)

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**Author:** [@Sin](https://discourse.nodered.org/u/Sin)\
**Replies:** 8\
**Last updated:** [31 January 2019 19:04 UTC](https://discourse.nodered.org/t/communication-with-the-arduino-robot/7410 "2019-01-31T19:04:05Z")

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Hello everyone. I'm trying to use the Arduino node from the Node-RED to communicate with the Arduino Robot. Arduino Robot: https://www.arduino.cc/en/Guide/Robot I'm trying to send some signals from the Node-RED to the …

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## [Load firmata onto Arduino Robot](https://discourse.nodered.org/t/load-firmata-onto-arduino-robot/7253)

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**Author:** [@Sin](https://discourse.nodered.org/u/Sin)\
**Replies:** 14\
**Last updated:** [31 January 2019 17:23 UTC](https://discourse.nodered.org/t/load-firmata-onto-arduino-robot/7253 "2019-01-31T17:23:57Z")

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Hello everyone. I'm using Arduino Robot as shown in Image 1 to communicate with the node-red. I need to download the Arduino node in the node-red but it failed. Is anyone know how to install the Arduino node? I've follow…

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## [Heart beat for DHT22 MQTT](https://discourse.nodered.org/t/heart-beat-for-dht22-mqtt/2215)

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**Author:** [@Backup](https://discourse.nodered.org/u/Backup)\
**Replies:** 13\
**Last updated:** [31 January 2019 15:34 UTC](https://discourse.nodered.org/t/heart-beat-for-dht22-mqtt/2215 "2019-01-31T15:34:58Z")

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I have a Wemos D1 mini with DHT22 sending data via MQTT to my Raspberry Pi3 dashboard. It's just a simple two gauge dashboard reporting temperature and humidity. My problem is the DHT22 occasionally goes into "NaN" mod…

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## [Get alexa to say something](https://discourse.nodered.org/t/get-alexa-to-say-something/7435)

<div class="topic-metadata">

**Author:** [@theraph83](https://discourse.nodered.org/u/theraph83)\
**Replies:** 1\
**Last updated:** [31 January 2019 15:30 UTC](https://discourse.nodered.org/t/get-alexa-to-say-something/7435 "2019-01-31T15:30:54Z")

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Hello guys im new to node red so please be patient with me ,i have node red integrated with home assistant ,i was wondering is there a way for my echo device to say something when something happens? For an example if i…

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## [Node-red component for handling big integers](https://discourse.nodered.org/t/node-red-component-for-handling-big-integers/7369)

<div class="topic-metadata">

**Author:** [@abra](https://discourse.nodered.org/u/abra)\
**Replies:** 2\
**Last updated:** [31 January 2019 13:16 UTC](https://discourse.nodered.org/t/node-red-component-for-handling-big-integers/7369 "2019-01-31T13:16:07Z")

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Is there any node-red component available, for handling big integers (Int64, UInt64) ? I need to combine into a function node two 32-bit integers into a 64-bit integer. Thx for your help.

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## [Preset Configuration Nodes?](https://discourse.nodered.org/t/preset-configuration-nodes/7420)

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**Author:** [@Naes0](https://discourse.nodered.org/u/Naes0)\
**Replies:** 0\
**Last updated:** [31 January 2019 06:42 UTC](https://discourse.nodered.org/t/preset-configuration-nodes/7420 "2019-01-31T06:42:19Z")

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Is there a way to preset configuration nodes for node-red? I'm looking to set up a dev environment that has preset configuration nodes so its easy to pick configuration presents for different nodes. For example, the no…

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## [\[Solved\] "Delayed" message creation using the delay node](https://discourse.nodered.org/t/solved-delayed-message-creation-using-the-delay-node/7415)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 1\
**Last updated:** [31 January 2019 02:11 UTC](https://discourse.nodered.org/t/solved-delayed-message-creation-using-the-delay-node/7415 "2019-01-31T02:11:28Z")

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Sorry folks, this is a new one which has just presented itself to me: The delay node is nide if I want to send a second message a time after the first message is received. Here's the catch: Say I want to create a chai…

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## [Possible new contributed message gate node](https://discourse.nodered.org/t/possible-new-contributed-message-gate-node/7382)

<div class="topic-metadata">

**Author:** [@drmibell](https://discourse.nodered.org/u/drmibell)\
**Replies:** 3\
**Last updated:** [30 January 2019 22:10 UTC](https://discourse.nodered.org/t/possible-new-contributed-message-gate-node/7382 "2019-01-30T22:10:29Z")

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A user of the node-red-contrib-simple-gate node has requested the ability to control the gate without having to wire a direct connection to it. In response, I have developed a gate node that can be operated "remotely" by…

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## [\[Solved\] Double triple press , simple RF remote](https://discourse.nodered.org/t/solved-double-triple-press-simple-rf-remote/7408)

<div class="topic-metadata">

**Author:** [@aihysp](https://discourse.nodered.org/u/aihysp)\
**Replies:** 2\
**Last updated:** [30 January 2019 21:37 UTC](https://discourse.nodered.org/t/solved-double-triple-press-simple-rf-remote/7408 "2019-01-30T21:37:30Z")

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Hi can anyone give me an example for something that will count how many times my MQTT \> RF \> RF remote been pressed? so let's say in a time frame of two seconds, i press it twice, i will get an MQTT msg in Node, and i w…

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