# Latest

**URL:** https://discourse.nodered.org/latest.md?page=1310

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

**Page:** 1311

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## [Big Timer how to change payload from 1 to 0 and 0 to 1](https://discourse.nodered.org/t/big-timer-how-to-change-payload-from-1-to-0-and-0-to-1/8243)

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**Author:** [@Vince](https://discourse.nodered.org/u/Vince)\
**Replies:** 18\
**Last updated:** [27 February 2019 18:33 UTC](https://discourse.nodered.org/t/big-timer-how-to-change-payload-from-1-to-0-and-0-to-1/8243 "2019-02-27T18:33:52Z")

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This my second day learning node-red and I have no coding experience other than Basic (25 years ago). Here is the question: Is there a better way to change default payload output of Big Timer than adding 2 “change” nod…

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## [Does amazon Alexa dot 3rd gen work with node red](https://discourse.nodered.org/t/does-amazon-alexa-dot-3rd-gen-work-with-node-red/8440)

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**Author:** [@IoT\_Student](https://discourse.nodered.org/u/IoT_Student)\
**Replies:** 3\
**Last updated:** [27 February 2019 16:23 UTC](https://discourse.nodered.org/t/does-amazon-alexa-dot-3rd-gen-work-with-node-red/8440 "2019-02-27T16:23:12Z")

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Hi I am being tutored in node red by ‘dramatic dave’ and we were trying to work out if my amazon echo dot 3rd gen will work with node red and what Alexa nodes will work

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## [Start Flow by Name?](https://discourse.nodered.org/t/start-flow-by-name/8323)

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**Author:** [@jbaben](https://discourse.nodered.org/u/jbaben)\
**Replies:** 11\
**Last updated:** [27 February 2019 16:07 UTC](https://discourse.nodered.org/t/start-flow-by-name/8323 "2019-02-27T16:07:12Z")

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Hello, I downloaded the flow "PWM Control LED" from the Node-Red page \[https://flows.nodered.org/?term=gpio&num\_pages=1\] and imported: \[{“id”:“fde7314.d38d4d”,“type”:“rpi-gpio out”,“z”:“b73e866c.ea2e08”,“name”:“LED 2 o…

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## [Send Sensor Data to send on node red server running on AWS server](https://discourse.nodered.org/t/send-sensor-data-to-send-on-node-red-server-running-on-aws-server/8436)

<div class="topic-metadata">

**Author:** [@Varul92](https://discourse.nodered.org/u/Varul92)\
**Replies:** 1\
**Last updated:** [27 February 2019 14:05 UTC](https://discourse.nodered.org/t/send-sensor-data-to-send-on-node-red-server-running-on-aws-server/8436 "2019-02-27T14:05:59Z")

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Hi, With the help of node red tutorial. I was able to install the node red. Could It be possible to send the Data of sensor through ESP8266 by using the public IP (alotted by AWS server) to be defined as MQTT server in …

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## [Telegram + 9x gpio-multi-function-lights + P.I.R + dash all working ;) but need help with a function](https://discourse.nodered.org/t/telegram-9x-gpio-multi-function-lights-p-i-r-dash-all-working-but-need-help-with-a-function/8314)

<div class="topic-metadata">

**Author:** [@lost66](https://discourse.nodered.org/u/lost66)\
**Replies:** 5\
**Last updated:** [27 February 2019 12:27 UTC](https://discourse.nodered.org/t/telegram-9x-gpio-multi-function-lights-p-i-r-dash-all-working-but-need-help-with-a-function/8314 "2019-02-27T12:27:33Z")

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\[{"id":"de3f81b5.8f7a1","type":"smartswitch","z":"7355e642.932538","name":"","topic":"FAMILY ROOM","timeout":"0","x":1020,"y":40,"wires":\[\["256d0392.f2548c","6a95b7c5.5901f8"\]\]},{"id":"256d0392.f2548c","type":"function",…

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## [Sqlite on Raspberry Pi Zero](https://discourse.nodered.org/t/sqlite-on-raspberry-pi-zero/8404)

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**Author:** [@pinkimark](https://discourse.nodered.org/u/pinkimark)\
**Replies:** 20\
**Last updated:** [27 February 2019 11:07 UTC](https://discourse.nodered.org/t/sqlite-on-raspberry-pi-zero/8404 "2019-02-27T11:07:37Z")

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Hey, I'm trying to set up a small home automation server using a Raspberry Pi Zero W. I've got the code I want to use working on my laptop and trying to export it across to my raspberry pi. the 2 extra Nodes I need for …

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## [Node for switching flow on and off](https://discourse.nodered.org/t/node-for-switching-flow-on-and-off/8431)

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**Author:** [@strixx](https://discourse.nodered.org/u/strixx)\
**Replies:** 5\
**Last updated:** [27 February 2019 09:02 UTC](https://discourse.nodered.org/t/node-for-switching-flow-on-and-off/8431 "2019-02-27T09:02:44Z")

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Hi, Have been searching for days now but can't seem to find a node that fits my needs. So I am about to write a function instead. But then I thought that I can't be the only one in need of this function. So is there nod…

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## [Thermostat - ESP8266 (ESP-GO)](https://discourse.nodered.org/t/thermostat-esp8266-esp-go/8362)

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**Author:** [@Petr](https://discourse.nodered.org/u/Petr)\
**Replies:** 3\
**Last updated:** [27 February 2019 08:41 UTC](https://discourse.nodered.org/t/thermostat-esp8266-esp-go/8362 "2019-02-27T08:41:59Z")

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I have found great articles/blog about Home Control using NR + ESP8266 written by Peter Scargill I was trying to follow him with the Thermostat project, which was kind of pain to me (mainly because I don't have enough …

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## [How to trigger node injecting specific date](https://discourse.nodered.org/t/how-to-trigger-node-injecting-specific-date/8393)

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**Author:** [@msanchezt](https://discourse.nodered.org/u/msanchezt)\
**Replies:** 5\
**Last updated:** [27 February 2019 08:10 UTC](https://discourse.nodered.org/t/how-to-trigger-node-injecting-specific-date/8393 "2019-02-27T08:10:04Z")

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Hi all, I have NodeRed connected with Home Assistant. I would like to trigger an action (set\_cover\_position to specific value) 30 minutes before the sun rises. I was thinking in getting this value from "sun.sun" entity…

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## [Delay node, rate limit don't send first message](https://discourse.nodered.org/t/delay-node-rate-limit-dont-send-first-message/8399)

<div class="topic-metadata">

**Author:** [@strixx](https://discourse.nodered.org/u/strixx)\
**Replies:** 10\
**Last updated:** [26 February 2019 20:58 UTC](https://discourse.nodered.org/t/delay-node-rate-limit-dont-send-first-message/8399 "2019-02-26T20:58:23Z")

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Hello, Been using Node-RED for a week or so now. And have a question about the delay node. A couple of days ago I started creating a flow where I needed to limit the amount of messages passed on to another node. Found …

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## [Custom Node Data Input Question](https://discourse.nodered.org/t/custom-node-data-input-question/8415)

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**Author:** [@tcontrada](https://discourse.nodered.org/u/tcontrada)\
**Replies:** 3\
**Last updated:** [26 February 2019 20:22 UTC](https://discourse.nodered.org/t/custom-node-data-input-question/8415 "2019-02-26T20:22:40Z")

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I have created a custom node and in the .JS file there is a line of code which accepts the User Input Data from the HTML dialog. This is the line of code I m referring: this.applicationHash = config.applicationHash; H…

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## [Extension: trigger node](https://discourse.nodered.org/t/extension-trigger-node/8369)

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**Author:** [@krambriw](https://discourse.nodered.org/u/krambriw)\
**Replies:** 12\
**Last updated:** [26 February 2019 19:24 UTC](https://discourse.nodered.org/t/extension-trigger-node/8369 "2019-02-26T19:24:19Z")

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Hello, I use the example below quite a lot when monitoring that my external services are a live and running. Without going into details of this special service, I wonder if it would be a good option for the trigger to b…

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## [Wait for page load before make Get request](https://discourse.nodered.org/t/wait-for-page-load-before-make-get-request/8405)

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**Author:** [@dandres](https://discourse.nodered.org/u/dandres)\
**Replies:** 7\
**Last updated:** [26 February 2019 18:22 UTC](https://discourse.nodered.org/t/wait-for-page-load-before-make-get-request/8405 "2019-02-26T18:22:31Z")

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I use http-request node with method GET, but the page takes a long time to finish loading, so it gives me a value of 0 where a larger number should go. How could I solve it?

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## [Error: getaddrinfo ENOTFOUND http http:80](https://discourse.nodered.org/t/error-getaddrinfo-enotfound-http-http-80/8379)

<div class="topic-metadata">

**Author:** [@Barkalez](https://discourse.nodered.org/u/Barkalez)\
**Replies:** 3\
**Last updated:** [26 February 2019 16:24 UTC](https://discourse.nodered.org/t/error-getaddrinfo-enotfound-http-http-80/8379 "2019-02-26T16:24:25Z")

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Hola chicos, Quiero guardar los datos que recoge mi sensor de temperatura y guardarlos en influxdb a través de MQTT, MOSQUITTO, NODERED, INFLUXDB y representarlo en GRAFANA. El problema es que el nodo de INFLUXDB en NOD…

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## [Create a new file with new name](https://discourse.nodered.org/t/create-a-new-file-with-new-name/8288)

<div class="topic-metadata">

**Author:** [@KevinPamu](https://discourse.nodered.org/u/KevinPamu)\
**Replies:** 14\
**Last updated:** [26 February 2019 16:09 UTC](https://discourse.nodered.org/t/create-a-new-file-with-new-name/8288 "2019-02-26T16:09:41Z")

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Hi, I am trying to write a few lines to a text file, but I want to rename the file to a unique name every time I write the lines into it. Is there a way I can do it? Thank you in advance. Kevin.

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## [Error in array, how to format correctly?](https://discourse.nodered.org/t/error-in-array-how-to-format-correctly/8409)

<div class="topic-metadata">

**Author:** [@jycemea](https://discourse.nodered.org/u/jycemea)\
**Replies:** 2\
**Last updated:** [26 February 2019 15:39 UTC](https://discourse.nodered.org/t/error-in-array-how-to-format-correctly/8409 "2019-02-26T15:39:43Z")

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Hi, Please, can someone help me to properly correct the array below? .............. let c; answer.position = \[\] if (answer.flag === "A") { let degreesN = Number(elements\[0\].substr(13,2)) let minutes…

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## [Scrolling Text box on dashboard?](https://discourse.nodered.org/t/scrolling-text-box-on-dashboard/2788)

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**Author:** [@craigcurtin](https://discourse.nodered.org/u/craigcurtin)\
**Replies:** 20\
**Last updated:** [26 February 2019 14:57 UTC](https://discourse.nodered.org/t/scrolling-text-box-on-dashboard/2788 "2019-02-26T14:57:15Z")

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Guys, Wondering if anyone knows a way to implement a scrolling text box in Dashboard ? Lets say something like 30 chars wide by 10 lines deep, everytime i add a new line it is added at the top and all other lines scroll…

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## [Better way to edit template node](https://discourse.nodered.org/t/better-way-to-edit-template-node/8380)

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**Author:** [@fabnavigator](https://discourse.nodered.org/u/fabnavigator)\
**Replies:** 6\
**Last updated:** [26 February 2019 14:15 UTC](https://discourse.nodered.org/t/better-way-to-edit-template-node/8380 "2019-02-26T14:15:35Z")

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When I edit function node text there is a button (with two arrows) that I press to open a large JavaScript editor window. I think we need the same thing for editing the UI template node text. Currently you can only see a…

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## [Select form with tree structure in custom node](https://discourse.nodered.org/t/select-form-with-tree-structure-in-custom-node/8348)

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**Author:** [@germancmartinez](https://discourse.nodered.org/u/germancmartinez)\
**Replies:** 9\
**Last updated:** [26 February 2019 13:53 UTC](https://discourse.nodered.org/t/select-form-with-tree-structure-in-custom-node/8348 "2019-02-26T13:53:35Z")

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Hi! I need to create a select form with tree structure for my custom node edit display. I'm wondering if it's possible to use this: https://mbraak.github.io/jqTree/#demo Can I use jqTree in the html file? or do I have t…

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## [Node-red watch for file modification executing 2 times](https://discourse.nodered.org/t/node-red-watch-for-file-modification-executing-2-times/8400)

<div class="topic-metadata">

**Author:** [@VIKRAMAS](https://discourse.nodered.org/u/VIKRAMAS)\
**Replies:** 3\
**Last updated:** [26 February 2019 12:01 UTC](https://discourse.nodered.org/t/node-red-watch-for-file-modification-executing-2-times/8400 "2019-02-26T12:01:25Z")

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From node-red watch node, it is executing two times for one file change. If file content not modified(saved) or tried to change also it is triggering. Is there any node which will execute once the file is modified(trigge…

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## [How do I select the last array of an undefined long object?](https://discourse.nodered.org/t/how-do-i-select-the-last-array-of-an-undefined-long-object/8397)

<div class="topic-metadata">

**Author:** [@YT2310](https://discourse.nodered.org/u/YT2310)\
**Replies:** 1\
**Last updated:** [26 February 2019 09:49 UTC](https://discourse.nodered.org/t/how-do-i-select-the-last-array-of-an-undefined-long-object/8397 "2019-02-26T09:49:45Z")

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Hello there, Can the last array of an undefined object be selected? It's undefined because I'm converting the object from an XML string that receives new data from time to time. this would mean that the 50 has to chang…

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## [Hashing password](https://discourse.nodered.org/t/hashing-password/7876)

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**Author:** [@Andres](https://discourse.nodered.org/u/Andres)\
**Replies:** 5\
**Last updated:** [26 February 2019 09:11 UTC](https://discourse.nodered.org/t/hashing-password/7876 "2019-02-26T09:11:12Z")

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Hi, i was trying to generate some passwords for the node-red editor and when i ran the "node-red-admin hash-pw" command with some password i noticed that every time i ran it it throws different hashes for the same pw, is…

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## [Node-RED 0.19.5 released](https://discourse.nodered.org/t/node-red-0-19-5-released/4452)

<div class="topic-metadata">

**Author:** [@knolleary](https://discourse.nodered.org/u/knolleary)\
**Replies:** 12\
**Last updated:** [26 February 2019 04:44 UTC](https://discourse.nodered.org/t/node-red-0-19-5-released/4452 "2019-02-26T04:44:07Z")

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Node-RED 0.19.5 has been released. A few handy fixes, including for the issues with repeated writes to the File Out node. Full change-log here: https://github.com/node-red/node-red/releases/tag/0.19.5 This is likely th…

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## [Simple cloudant word search by timestamp - need help](https://discourse.nodered.org/t/simple-cloudant-word-search-by-timestamp-need-help/8384)

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**Author:** [@bryan-ninjamoba](https://discourse.nodered.org/u/bryan-ninjamoba)\
**Replies:** 2\
**Last updated:** [26 February 2019 01:59 UTC](https://discourse.nodered.org/t/simple-cloudant-word-search-by-timestamp-need-help/8384 "2019-02-26T01:59:22Z")

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My cloudant database was created with the following: msg.payload via tweetnode to cloudant { "timestamp" : msg.tweet.timestamp\_ms, "tweet" : msg.tweet.text, "sentiment" : msg.sentiment.score } I would like …

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## [Group and chart refresh problem](https://discourse.nodered.org/t/group-and-chart-refresh-problem/4463)

<div class="topic-metadata">

**Author:** [@goncastorena](https://discourse.nodered.org/u/goncastorena)\
**Replies:** 15\
**Last updated:** [26 February 2019 01:00 UTC](https://discourse.nodered.org/t/group-and-chart-refresh-problem/4463 "2019-02-26T01:00:06Z")

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hello, I'm making a project where I change the displayed groups with a drop down list, it works good but the main problem is that when I make the change some charts lost the values and don't show anything until I refresh…

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## [Node-RED Job Opening - St Louis, MO](https://discourse.nodered.org/t/node-red-job-opening-st-louis-mo/8383)

<div class="topic-metadata">

**Author:** [@MCzarnik](https://discourse.nodered.org/u/MCzarnik)\
**Replies:** 0\
**Last updated:** [25 February 2019 21:25 UTC](https://discourse.nodered.org/t/node-red-job-opening-st-louis-mo/8383 "2019-02-25T21:25:44Z")

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Greetings! Hope all is well Node-RED forum members. I wanted to reach out and publish a new position I am recruiting for in the St. Louis, MO area with a medical device company. This company needs someone with experienc…

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## [Div height 0 after deploy](https://discourse.nodered.org/t/div-height-0-after-deploy/8336)

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**Author:** [@BartButenaers](https://discourse.nodered.org/u/BartButenaers)\
**Replies:** 1\
**Last updated:** [25 February 2019 21:14 UTC](https://discourse.nodered.org/t/div-height-0-after-deploy/8336 "2019-02-25T21:14:42Z")

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Hi folks, I would like to publish my node-red-contrib-ui-heatmap node on npm, but @dceejay reported that it raises following exception: DOMException: Failed to execute 'getImageData' on 'CanvasRenderingContext2D': The…

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## [Node Properties Not Displaying in Editor](https://discourse.nodered.org/t/node-properties-not-displaying-in-editor/8378)

<div class="topic-metadata">

**Author:** [@tcontrada](https://discourse.nodered.org/u/tcontrada)\
**Replies:** 3\
**Last updated:** [25 February 2019 19:53 UTC](https://discourse.nodered.org/t/node-properties-not-displaying-in-editor/8378 "2019-02-25T19:53:35Z")

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I created a custom node that has HTML properties that should display in the Node Properties Editor window. None of them are displayed. Here is my .HTML file \<script type="text/javascript"\> RED.nodes.registerType('s…

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## [Speeding up picture taking](https://discourse.nodered.org/t/speeding-up-picture-taking/7737)

<div class="topic-metadata">

**Author:** [@General\_Failure](https://discourse.nodered.org/u/General_Failure)\
**Replies:** 15\
**Last updated:** [25 February 2019 18:25 UTC](https://discourse.nodered.org/t/speeding-up-picture-taking/7737 "2019-02-25T18:25:28Z")

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I'm using a pi0 with the webcamera. It's meant to take a picture, send it to openALPR, and for that I'm using cURLPOST, I'm also using raspistill for the dashboard. I've tried removing one or the other just to test if t…

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## [Launch program if not running](https://discourse.nodered.org/t/launch-program-if-not-running/8374)

<div class="topic-metadata">

**Author:** [@kxkayser](https://discourse.nodered.org/u/kxkayser)\
**Replies:** 3\
**Last updated:** [25 February 2019 17:21 UTC](https://discourse.nodered.org/t/launch-program-if-not-running/8374 "2019-02-25T17:21:22Z")

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Hi all. Another newbe question. I have a flow which accepts input from Alexa and interacts with a Python program via mqtt. I only want to launch the program if it's not running. Seems like this should be simple but I…

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