# Latest

**URL:** https://discourse.nodered.org/latest.md?page=1061

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

**Page:** 1062

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## [Setting the timer in node-red function node for few milliseconds](https://discourse.nodered.org/t/setting-the-timer-in-node-red-function-node-for-few-milliseconds/28622)

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**Author:** [@Waled22](https://discourse.nodered.org/u/Waled22)\
**Replies:** 16\
**Last updated:** [23 June 2020 16:45 UTC](https://discourse.nodered.org/t/setting-the-timer-in-node-red-function-node-for-few-milliseconds/28622 "2020-06-23T16:45:47Z")

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Hi, I have been looking for a way to set the timer for a few milliseconds in the function node. Actually the scenario is that the function node is receiving the data coming from the sensor which sends this data when an…

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## [Apple TV Node - Reinstall ed25519](https://discourse.nodered.org/t/apple-tv-node-reinstall-ed25519/28754)

<div class="topic-metadata">

**Author:** [@yyjdennis](https://discourse.nodered.org/u/yyjdennis)\
**Replies:** 7\
**Last updated:** [23 June 2020 14:39 UTC](https://discourse.nodered.org/t/apple-tv-node-reinstall-ed25519/28754 "2020-06-23T14:39:20Z")

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I'm trying to get the Contrib Apple TV node to work. It won't install and there are error messages in the log which mention ed25519. The documentation for the node says: "If you're having trouble with ed25519, mdns, …

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## [Problem on platerecognizer.com with node red and rapsberry pi](https://discourse.nodered.org/t/problem-on-platerecognizer-com-with-node-red-and-rapsberry-pi/28768)

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**Author:** [@xy06](https://discourse.nodered.org/u/xy06)\
**Replies:** 2\
**Last updated:** [23 June 2020 14:26 UTC](https://discourse.nodered.org/t/problem-on-platerecognizer-com-with-node-red-and-rapsberry-pi/28768 "2020-06-23T14:26:16Z")

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I have some problems with the node-red-contrib-plate-recognizer. It get "bad request" after recognizing the picture that capture by raspberry pi camera module. Is there any suggestion to solve it?

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## [Ui\_media play/pause video option with ui\_button](https://discourse.nodered.org/t/ui-media-play-pause-video-option-with-ui-button/28808)

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**Author:** [@jvperoni](https://discourse.nodered.org/u/jvperoni)\
**Replies:** 0\
**Last updated:** [23 June 2020 13:00 UTC](https://discourse.nodered.org/t/ui-media-play-pause-video-option-with-ui-button/28808 "2020-06-23T13:00:24Z")

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Hello. I'm new in programming, and I'm having some problems using the ui\_media node using external buttons to play/pause the video in the dashboard. It only works when I use the "show controls" option in the node, but I …

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## [Node Development config-node missing create new button and dropdown](https://discourse.nodered.org/t/node-development-config-node-missing-create-new-button-and-dropdown/28798)

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**Author:** [@Czerwe](https://discourse.nodered.org/u/Czerwe)\
**Replies:** 4\
**Last updated:** [23 June 2020 12:52 UTC](https://discourse.nodered.org/t/node-development-config-node-missing-create-new-button-and-dropdown/28798 "2020-06-23T12:52:18Z")

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Hi, i am quite new to JavaScript/Node/NodeRed development but not to coding as it. I did follow following this tutorial but fail to get an dialog to create a new Configuration Node. I whould like to have a drop down o…

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## [How to set a Room in Roomba?](https://discourse.nodered.org/t/how-to-set-a-room-in-roomba/28789)

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**Author:** [@Mannshoch](https://discourse.nodered.org/u/Mannshoch)\
**Replies:** 4\
**Last updated:** [23 June 2020 12:27 UTC](https://discourse.nodered.org/t/how-to-set-a-room-in-roomba/28789 "2020-06-23T12:27:13Z")

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I wish to set which room Roomba should clean. How do I setup a Room without the App? Is it may either possible to advice roomba to move to a certain XY coordinate?

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## [How to using React in NodeRed](https://discourse.nodered.org/t/how-to-using-react-in-nodered/28788)

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**Author:** [@vahidsam](https://discourse.nodered.org/u/vahidsam)\
**Replies:** 1\
**Last updated:** [23 June 2020 11:51 UTC](https://discourse.nodered.org/t/how-to-using-react-in-nodered/28788 "2020-06-23T11:51:14Z")

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Hi all, I have a tiny project with "react" implemented and now I want to migrate to NodeRed. But I dont know, how can I do this hier is index.html: \<!DOCTYPE html\> \<html lang="en"\> \<head\> \<title\>Comments\</title\> …

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## [Pull request proposal - Confirmation before injecting](https://discourse.nodered.org/t/pull-request-proposal-confirmation-before-injecting/28757)

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**Author:** [@BartButenaers](https://discourse.nodered.org/u/BartButenaers)\
**Replies:** 17\
**Last updated:** [23 June 2020 11:15 UTC](https://discourse.nodered.org/t/pull-request-proposal-confirmation-before-injecting/28757 "2020-06-23T11:15:55Z")

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Hi folks, I have a number of inject buttons in my flows, which I would like to secure for accidentally clicking them. Because some of those inject buttons trigger actions that could cause troubles, when being used at t…

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## [Node for Alpaca stock trading API](https://discourse.nodered.org/t/node-for-alpaca-stock-trading-api/28771)

<div class="topic-metadata">

**Author:** [@mdkrieg](https://discourse.nodered.org/u/mdkrieg)\
**Replies:** 2\
**Last updated:** [23 June 2020 11:09 UTC](https://discourse.nodered.org/t/node-for-alpaca-stock-trading-api/28771 "2020-06-23T11:09:25Z")

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Alpaca is a commission-free stock trading API. I wasn't able to find any node that connects to this service so I wrapped their official NodeJS SDK into a node-red package. Easy as pie! Stay tuned, as this is definitely …

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## [Build an XML file](https://discourse.nodered.org/t/build-an-xml-file/25370)

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**Author:** [@caveman](https://discourse.nodered.org/u/caveman)\
**Replies:** 6\
**Last updated:** [23 June 2020 10:37 UTC](https://discourse.nodered.org/t/build-an-xml-file/25370 "2020-06-23T10:37:28Z")

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Hi all, it is maybe an simple topic but i have not found an solution... maybe i have not read very well the doc... i need to build an xml file that have this structure: \<?xml version="1.0" ?\> \<pcis:PCISDocument xmln…

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## [I don't understand why I am getting this error](https://discourse.nodered.org/t/i-dont-understand-why-i-am-getting-this-error/28791)

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**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 1\
**Last updated:** [23 June 2020 09:58 UTC](https://discourse.nodered.org/t/i-dont-understand-why-i-am-getting-this-error/28791 "2020-06-23T09:58:01Z")

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I am seeing this error: Error: Invalid property expression: unexpected ' ' at position 7 This is the node (change node) \[{"id":"515a1c91.ae5a8c","type":"change","z":"bdc47459.27c378","name":"flow set Channel Passed","…

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## [Localhost is not coming](https://discourse.nodered.org/t/localhost-is-not-coming/28681)

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**Author:** [@dick](https://discourse.nodered.org/u/dick)\
**Replies:** 21\
**Last updated:** [23 June 2020 09:51 UTC](https://discourse.nodered.org/t/localhost-is-not-coming/28681 "2020-06-23T09:51:35Z")

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hi, Node-red is working well on my Windows 10 64system the flow e.g. is a good one. but localhost:1880/ui gives no reply The adres change localhost:1880/ui --\> localhost:1880/ui/#flow/nr2687dd1d. or something els…

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## [Range error - The value "NaN" is invalid](https://discourse.nodered.org/t/range-error-the-value-nan-is-invalid/28778)

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**Author:** [@jan12](https://discourse.nodered.org/u/jan12)\
**Replies:** 26\
**Last updated:** [23 June 2020 08:08 UTC](https://discourse.nodered.org/t/range-error-the-value-nan-is-invalid/28778 "2020-06-23T08:08:06Z")

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Got a big problem with a range error. I've tried to uninstal and instal js again but still the same problem. Can any help have I solve it. Thanks Jan

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## [TCP request node misbehaving - not disconnecting](https://discourse.nodered.org/t/tcp-request-node-misbehaving-not-disconnecting/28782)

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**Author:** [@daveve](https://discourse.nodered.org/u/daveve)\
**Replies:** 0\
**Last updated:** [23 June 2020 07:42 UTC](https://discourse.nodered.org/t/tcp-request-node-misbehaving-not-disconnecting/28782 "2020-06-23T07:42:06Z")

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Hi everybody. I'm using a "TCP Request" node to retrieve data from a PV monitoring system, polling it every 30 secs, but I'm struggling to get it to work correctly. Issue: the TCP node will not disconnect or will stop…

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## [Node-red-contrib-ui-media](https://discourse.nodered.org/t/node-red-contrib-ui-media/28530)

<div class="topic-metadata">

**Author:** [@Kees](https://discourse.nodered.org/u/Kees)\
**Replies:** 6\
**Last updated:** [23 June 2020 07:41 UTC](https://discourse.nodered.org/t/node-red-contrib-ui-media/28530 "2020-06-23T07:41:01Z")

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Is it possible to adjust and to center a picture at the same time?

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## [Help JSONata Expression](https://discourse.nodered.org/t/help-jsonata-expression/28767)

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**Author:** [@mikeh](https://discourse.nodered.org/u/mikeh)\
**Replies:** 4\
**Last updated:** [23 June 2020 07:26 UTC](https://discourse.nodered.org/t/help-jsonata-expression/28767 "2020-06-23T07:26:23Z")

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I need help with this JSONata Expression. It's not working...

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## [LED Brightness, for(), dash board slider, dimming](https://discourse.nodered.org/t/led-brightness-for-dash-board-slider-dimming/28706)

<div class="topic-metadata">

**Author:** [@seyeon](https://discourse.nodered.org/u/seyeon)\
**Replies:** 12\
**Last updated:** [23 June 2020 06:18 UTC](https://discourse.nodered.org/t/led-brightness-for-dash-board-slider-dimming/28706 "2020-06-23T06:18:55Z")

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How can I slowly increase the brightness of a light in Node-red?. apply for() to the Dashboard with slider...Or what else?

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## [Send capture snapshot url photo from motioneye to pushover](https://discourse.nodered.org/t/send-capture-snapshot-url-photo-from-motioneye-to-pushover/28549)

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**Author:** [@mversion](https://discourse.nodered.org/u/mversion)\
**Replies:** 3\
**Last updated:** [23 June 2020 06:15 UTC](https://discourse.nodered.org/t/send-capture-snapshot-url-photo-from-motioneye-to-pushover/28549 "2020-06-23T06:15:20Z")

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So I have motion eye setup with a snapshot URL for a camera. my idea is if motion is detected, send the captured image via pushover so I get a push notification with the image. via the http request node, i can easily se…

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## [Trying to save numeric input to varible and recall it for funtion input](https://discourse.nodered.org/t/trying-to-save-numeric-input-to-varible-and-recall-it-for-funtion-input/28697)

<div class="topic-metadata">

**Author:** [@rmystique](https://discourse.nodered.org/u/rmystique)\
**Replies:** 2\
**Last updated:** [23 June 2020 05:49 UTC](https://discourse.nodered.org/t/trying-to-save-numeric-input-to-varible-and-recall-it-for-funtion-input/28697 "2020-06-23T05:49:49Z")

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I am trying to use a numeric input to be able to adjust a timer off delay, but becuase the numeric input node only sends when changed I am trying to save the value to a varible and have a function use that varible to add…

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## [How to using environment variables in the subflow](https://discourse.nodered.org/t/how-to-using-environment-variables-in-the-subflow/28773)

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**Author:** [@jinyistudio](https://discourse.nodered.org/u/jinyistudio)\
**Replies:** 1\
**Last updated:** [23 June 2020 04:37 UTC](https://discourse.nodered.org/t/how-to-using-environment-variables-in-the-subflow/28773 "2020-06-23T04:37:17Z")

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Hi I add a environment variables in the subflow. name is PinNumber and type is string. I have a Function node in this subflow. How to access PinNumber in the Function node ? :joy: \[{"id":"f89b2c94.be924","type":"func-e…

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## [Msg.object change number](https://discourse.nodered.org/t/msg-object-change-number/28716)

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**Author:** [@seyeon](https://discourse.nodered.org/u/seyeon)\
**Replies:** 6\
**Last updated:** [23 June 2020 02:16 UTC](https://discourse.nodered.org/t/msg-object-change-number/28716 "2020-06-23T02:16:54Z")

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Hello :slight\_smile: : I try to change the Object to number... Can I export the brightness value of the msg : Object as a number? What if I could...

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## [Receive real time data](https://discourse.nodered.org/t/receive-real-time-data/28702)

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**Author:** [@seyeon](https://discourse.nodered.org/u/seyeon)\
**Replies:** 10\
**Last updated:** [23 June 2020 01:51 UTC](https://discourse.nodered.org/t/receive-real-time-data/28702 "2020-06-23T01:51:33Z")

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Receive real-time data once every 10 seconds. I'm a student and beginner. I want to average the data. (by 10 times) I think... First, sort the data that is measured once every 10 seconds... I've tried many times, b…

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## [How to use msg.payload or global variables in postgrestor node?](https://discourse.nodered.org/t/how-to-use-msg-payload-or-global-variables-in-postgrestor-node/28712)

<div class="topic-metadata">

**Author:** [@xiao1201](https://discourse.nodered.org/u/xiao1201)\
**Replies:** 4\
**Last updated:** [23 June 2020 00:52 UTC](https://discourse.nodered.org/t/how-to-use-msg-payload-or-global-variables-in-postgrestor-node/28712 "2020-06-23T00:52:34Z")

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Hi there, so I'm using postgrestor node in NR and am able to do some sql operations by the postgrestor node just fine. My question is: how to use msg.payload or NR global varaible in the postgrestor node because the post…

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## [Keyence plc, modbus tcp, nodered](https://discourse.nodered.org/t/keyence-plc-modbus-tcp-nodered/28765)

<div class="topic-metadata">

**Author:** [@SATHYA\_JAPAN](https://discourse.nodered.org/u/SATHYA_JAPAN)\
**Replies:** 0\
**Last updated:** [22 June 2020 22:59 UTC](https://discourse.nodered.org/t/keyence-plc-modbus-tcp-nodered/28765 "2020-06-22T22:59:45Z")

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Hello , I am beginner with Nodered We are using Keyence Nano Series KV-7500 and KV-XLE02 Ethernet interface,KV-XLE02 which supports Modbus TCP Server. So Please guide me on the procedure(STEP by STEP) to Connect and…

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## [Mysql node not working properly](https://discourse.nodered.org/t/mysql-node-not-working-properly/28746)

<div class="topic-metadata">

**Author:** [@jnbest00](https://discourse.nodered.org/u/jnbest00)\
**Replies:** 3\
**Last updated:** [22 June 2020 22:08 UTC](https://discourse.nodered.org/t/mysql-node-not-working-properly/28746 "2020-06-22T22:08:39Z")

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Hello, Im trying to connect to a MySQL database via the node-red-node-mysql. After I enter the appropriate info it reads back an error msg 'Error: Cannot find module './protocol/constants/client'. Does anyone know a solu…

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## [\[Announce\] node-red-contrib-hx77](https://discourse.nodered.org/t/announce-node-red-contrib-hx77/28764)

<div class="topic-metadata">

**Author:** [@rtoenniges](https://discourse.nodered.org/u/rtoenniges)\
**Replies:** 0\
**Last updated:** [22 June 2020 22:06 UTC](https://discourse.nodered.org/t/announce-node-red-contrib-hx77/28764 "2020-06-22T22:06:14Z")

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Hi, I've published my first node :slight\_smile: Its to connect a HX711 Load Cell Amplifier. I've wanted to use the HX711 directly in NodeRed and not via the "exec" command. On npm was a good working library I could e…

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## [Raspberry Pi vs. Linux Virtual Machine](https://discourse.nodered.org/t/raspberry-pi-vs-linux-virtual-machine/28577)

<div class="topic-metadata">

**Author:** [@BrainBomber100](https://discourse.nodered.org/u/BrainBomber100)\
**Replies:** 9\
**Last updated:** [22 June 2020 22:01 UTC](https://discourse.nodered.org/t/raspberry-pi-vs-linux-virtual-machine/28577 "2020-06-22T22:01:30Z")

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Hello! I was wondering whether it would be more cost-efficient to run my own Node Red server on a Raspberry Pi or a virtual machine on my laptop. I don't exactly have a spare computer lying around to use as a server, so …

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## [Please help simplify this. Multiple IFs to one Output](https://discourse.nodered.org/t/please-help-simplify-this-multiple-ifs-to-one-output/28755)

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**Author:** [@CaptainSweatpants](https://discourse.nodered.org/u/CaptainSweatpants)\
**Replies:** 2\
**Last updated:** [22 June 2020 21:21 UTC](https://discourse.nodered.org/t/please-help-simplify-this-multiple-ifs-to-one-output/28755 "2020-06-22T21:21:53Z")

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Ok, clearly I’m not familiar with JS super well; but what this flow does is grab all the properties of my Ecobee Thermostat’s Outside Weather conditions and then start filtering them off to ultimately end up at a functio…

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## [Get Alexa to show green notifications](https://discourse.nodered.org/t/get-alexa-to-show-green-notifications/28759)

<div class="topic-metadata">

**Author:** [@cymplecy](https://discourse.nodered.org/u/cymplecy)\
**Replies:** 0\
**Last updated:** [22 June 2020 20:57 UTC](https://discourse.nodered.org/t/get-alexa-to-show-green-notifications/28759 "2020-06-22T20:57:45Z")

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One thing I'd like to do is to be able to send notifications (like the ones you get about Prime deliveries) using Node-RED Anyone managed to do this at all?

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## [Node-red nodes and password](https://discourse.nodered.org/t/node-red-nodes-and-password/28740)

<div class="topic-metadata">

**Author:** [@olab](https://discourse.nodered.org/u/olab)\
**Replies:** 2\
**Last updated:** [22 June 2020 19:24 UTC](https://discourse.nodered.org/t/node-red-nodes-and-password/28740 "2020-06-22T19:24:34Z")

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Hi, There are quite a few different nodes available to conect Note-red to different systems like SQL, Samba, MQTT etc. Most of them need a password to work of course. But, how safe is this passwords actually stored. Are…

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