# Latest

**URL:** https://discourse.nodered.org/latest.md?page=820

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

**Page:** 821

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## [Not able to access node red dashboard from my android phone](https://discourse.nodered.org/t/not-able-to-access-node-red-dashboard-from-my-android-phone/45369)

<div class="topic-metadata">

**Author:** [@Jeevan](https://discourse.nodered.org/u/Jeevan)\
**Replies:** 3\
**Last updated:** [9 May 2021 03:50 UTC](https://discourse.nodered.org/t/not-able-to-access-node-red-dashboard-from-my-android-phone/45369 "2021-05-09T03:50:29Z")

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Hey there, I am able to access the node red dashboard from my computer, but I am not able to access it through my android phone even though it is connected to the same wifi network. It says "This site can't be reached" …

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## [Help if not defined variable is accessed](https://discourse.nodered.org/t/help-if-not-defined-variable-is-accessed/45377)

<div class="topic-metadata">

**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 5\
**Last updated:** [9 May 2021 00:07 UTC](https://discourse.nodered.org/t/help-if-not-defined-variable-is-accessed/45377 "2021-05-09T00:07:38Z")

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Yeah, it is probably easy to do, but for now it escapes me how to do it. This is the code on a Function node: var m = msg.month; m = parseInt(m); var x = msg.table\[m\]; msg.payload = x; return msg; If msg.table isn…

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## [Linkify best way to impliment/ function 'replace' error](https://discourse.nodered.org/t/linkify-best-way-to-impliment-function-replace-error/45376)

<div class="topic-metadata">

**Author:** [@ninjamoba](https://discourse.nodered.org/u/ninjamoba)\
**Replies:** 1\
**Last updated:** [8 May 2021 22:04 UTC](https://discourse.nodered.org/t/linkify-best-way-to-impliment-function-replace-error/45376 "2021-05-08T22:04:37Z")

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Want to "linkafy" text thats being generated into an HTML from node-red am getting an error from a function node that seems node-red related function : (error) "TypeError: Cannot read property 'replace' of undefined" …

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## [Setting new payload issue](https://discourse.nodered.org/t/setting-new-payload-issue/45375)

<div class="topic-metadata">

**Author:** [@ricky.spanish6](https://discourse.nodered.org/u/ricky.spanish6)\
**Replies:** 2\
**Last updated:** [8 May 2021 21:22 UTC](https://discourse.nodered.org/t/setting-new-payload-issue/45375 "2021-05-08T21:22:58Z")

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Hi, I'm trying to set a new payload through a function when the percentage gets low, so I can send a notification to IFTTT. Here is what my function contains: foodlevel = msg.payload if (foodlevel \<= 30) { msg.pa…

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## [Write many values for the same time with nodered in influxdb](https://discourse.nodered.org/t/write-many-values-for-the-same-time-with-nodered-in-influxdb/44718)

<div class="topic-metadata">

**Author:** [@mune](https://discourse.nodered.org/u/mune)\
**Replies:** 12\
**Last updated:** [8 May 2021 20:39 UTC](https://discourse.nodered.org/t/write-many-values-for-the-same-time-with-nodered-in-influxdb/44718 "2021-05-08T20:39:13Z")

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With the standard influx node, if I pass for (let i=0; i\<sensors.length; i++) timea.push(new Date().getTime()+i); // microsecsec from 00:00 1/1/1970 influxa.push({time: timea\[0\], fie…

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## [Oracle database in node-red docker](https://discourse.nodered.org/t/oracle-database-in-node-red-docker/11691)

<div class="topic-metadata">

**Author:** [@maxwebbi](https://discourse.nodered.org/u/maxwebbi)\
**Replies:** 2\
**Last updated:** [8 May 2021 19:27 UTC](https://discourse.nodered.org/t/oracle-database-in-node-red-docker/11691 "2021-05-08T19:27:40Z")

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Hello everyone, i'm trying to run my node-red in a docker container with an oracledb node. My dockerfile is as follows: FROM nodered/node-red-docker ENV http\_proxy \<IP:Port\> USER root RUN apt-get update RUN npm set…

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## [Count objects and write the result](https://discourse.nodered.org/t/count-objects-and-write-the-result/45368)

<div class="topic-metadata">

**Author:** [@madmax](https://discourse.nodered.org/u/madmax)\
**Replies:** 6\
**Last updated:** [8 May 2021 19:15 UTC](https://discourse.nodered.org/t/count-objects-and-write-the-result/45368 "2021-05-08T19:15:47Z")

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Hello! There is a way to count objects and write the result into an object.

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## [Node-RED docker image with oracle instant client](https://discourse.nodered.org/t/node-red-docker-image-with-oracle-instant-client/45374)

<div class="topic-metadata">

**Author:** [@RyuunosukeDS3](https://discourse.nodered.org/u/RyuunosukeDS3)\
**Replies:** 0\
**Last updated:** [8 May 2021 19:08 UTC](https://discourse.nodered.org/t/node-red-docker-image-with-oracle-instant-client/45374 "2021-05-08T19:08:21Z")

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I've created a Dorckerfile that when built creates an image with latest Node-RED and an oracle instant client to access oracledb. I was not sure where to post this, but since I've seen a lot of ppl having trouble to …

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## [Node-Red / sqlite / Charts](https://discourse.nodered.org/t/node-red-sqlite-charts/45251)

<div class="topic-metadata">

**Author:** [@Harakaio](https://discourse.nodered.org/u/Harakaio)\
**Replies:** 17\
**Last updated:** [8 May 2021 17:28 UTC](https://discourse.nodered.org/t/node-red-sqlite-charts/45251 "2021-05-08T17:28:08Z")

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Hi there, I'm struggling with JavaScript. Via Form-Node I'm selecting the datapoints which I want to extract from sqlite and show them in a chart. From sqlite I receive this: Pic1&2. Pic1: Pic2: After that I l…

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## [Modbus tcp server](https://discourse.nodered.org/t/modbus-tcp-server/45365)

<div class="topic-metadata">

**Author:** [@Benja](https://discourse.nodered.org/u/Benja)\
**Replies:** 1\
**Last updated:** [8 May 2021 15:39 UTC](https://discourse.nodered.org/t/modbus-tcp-server/45365 "2021-05-08T15:39:08Z")

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Hello, I need to read data by modbus tcp to node red, so my query is how can I do that, is there any way? I think with modbus server but I don't know how to do it.

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## [Storing video as mp4](https://discourse.nodered.org/t/storing-video-as-mp4/41911)

<div class="topic-metadata">

**Author:** [@BartButenaers](https://discourse.nodered.org/u/BartButenaers)\
**Replies:** 41\
**Last updated:** [8 May 2021 15:00 UTC](https://discourse.nodered.org/t/storing-video-as-mp4/41911 "2021-05-08T15:00:18Z")

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Hi folks, Today a collegue of mine asked me if it is already possible to store cam footage, only by using Node-RED. So no third-party software. There have been a lot of interesting discussions been going on, about the…

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## [What is the correct solution to show image files](https://discourse.nodered.org/t/what-is-the-correct-solution-to-show-image-files/45360)

<div class="topic-metadata">

**Author:** [@tpbillund](https://discourse.nodered.org/u/tpbillund)\
**Replies:** 4\
**Last updated:** [8 May 2021 14:06 UTC](https://discourse.nodered.org/t/what-is-the-correct-solution-to-show-image-files/45360 "2021-05-08T14:06:45Z")

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Hi. Im trying to show a file:// but can't get it to work. If I add this link to my browser app, I see an image "file://mynas/docker/frigate/media/clips/foran-1620191711.030997-b2cpcd.jpg" But if using this flow I can…

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## [Quick Function node question](https://discourse.nodered.org/t/quick-function-node-question/45358)

<div class="topic-metadata">

**Author:** [@Dave](https://discourse.nodered.org/u/Dave)\
**Replies:** 2\
**Last updated:** [8 May 2021 10:52 UTC](https://discourse.nodered.org/t/quick-function-node-question/45358 "2021-05-08T10:52:55Z")

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In previous versions of Node-Red In a function node I could have if (msg.payload) { Do Something so any and all payloads would trigger Do Something however it no longer works what can I do instead.?

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## [Node-RED Dashboard custom node](https://discourse.nodered.org/t/node-red-dashboard-custom-node/45242)

<div class="topic-metadata">

**Author:** [@KevinGhadyani](https://discourse.nodered.org/u/KevinGhadyani)\
**Replies:** 3\
**Last updated:** [8 May 2021 09:03 UTC](https://discourse.nodered.org/t/node-red-dashboard-custom-node/45242 "2021-05-08T09:03:48Z")

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Is it possible to create a custom node for Node-RED Dashboard? If so, where's the documentation on that? I'd like to create a new Template node that uses React instead of AngularJS v1. I've been working on this myself,…

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## [Increment a global variable with a change node](https://discourse.nodered.org/t/increment-a-global-variable-with-a-change-node/44893)

<div class="topic-metadata">

**Author:** [@augjoh](https://discourse.nodered.org/u/augjoh)\
**Replies:** 8\
**Last updated:** [8 May 2021 05:53 UTC](https://discourse.nodered.org/t/increment-a-global-variable-with-a-change-node/44893 "2021-05-08T05:53:39Z")

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Hello, is it possible to replace a function node containing the following code, with a change node? var metric = global.get('metric'); metric++; global.set('metric', metric);

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## [Storing latest messages by topic for a possible request](https://discourse.nodered.org/t/storing-latest-messages-by-topic-for-a-possible-request/45343)

<div class="topic-metadata">

**Author:** [@vapourlyric](https://discourse.nodered.org/u/vapourlyric)\
**Replies:** 6\
**Last updated:** [8 May 2021 05:43 UTC](https://discourse.nodered.org/t/storing-latest-messages-by-topic-for-a-possible-request/45343 "2021-05-08T05:43:25Z")

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Hi everyone, I was recently searching for a solution to store latest messages by topic (or possibly any other configurable unique key) to be able to request these messages on demand. At first I was pretty confident that…

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## [Feature req: Mouse wheel to scroll through flows tab](https://discourse.nodered.org/t/feature-req-mouse-wheel-to-scroll-through-flows-tab/45179)

<div class="topic-metadata">

**Author:** [@hazymat](https://discourse.nodered.org/u/hazymat)\
**Replies:** 19\
**Last updated:** [7 May 2021 20:03 UTC](https://discourse.nodered.org/t/feature-req-mouse-wheel-to-scroll-through-flows-tab/45179 "2021-05-07T20:03:38Z")

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Rather than having to move mouse to far left and far right and mash repeatedly on the mouse button to scroll through the flows tab, I think it would be intuitive to allow mouse wheel scrolling through them. (Scroll down …

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## [Announcement: Atlas-Scientific EZO Device Simple Read over i2c Example](https://discourse.nodered.org/t/announcement-atlas-scientific-ezo-device-simple-read-over-i2c-example/45145)

<div class="topic-metadata">

**Author:** [@SonoraTechnical](https://discourse.nodered.org/u/SonoraTechnical)\
**Replies:** 1\
**Last updated:** [7 May 2021 18:48 UTC](https://discourse.nodered.org/t/announcement-atlas-scientific-ezo-device-simple-read-over-i2c-example/45145 "2021-05-07T18:48:23Z")

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Like many, initially I struggled with getting these devices communicating over i2c on NodeRED. I thought it mighe be helpful to publish an extremely basic flow for reading data, via the i2c inteface, from most of the Atl…

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## [How to run exec on the background?](https://discourse.nodered.org/t/how-to-run-exec-on-the-background/45231)

<div class="topic-metadata">

**Author:** [@fercasjr](https://discourse.nodered.org/u/fercasjr)\
**Replies:** 17\
**Last updated:** [7 May 2021 16:23 UTC](https://discourse.nodered.org/t/how-to-run-exec-on-the-background/45231 "2021-05-07T16:23:22Z")

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Hi, I made a flow that monitors a device every 30s, executing curl commands to log in and retrieve the information from a web server in another device. (I couldn't do it with an HTTP request because I never could pass th…

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## [ECONNREFUSED error on starting Node Red](https://discourse.nodered.org/t/econnrefused-error-on-starting-node-red/45339)

<div class="topic-metadata">

**Author:** [@icare88](https://discourse.nodered.org/u/icare88)\
**Replies:** 6\
**Last updated:** [7 May 2021 16:15 UTC](https://discourse.nodered.org/t/econnrefused-error-on-starting-node-red/45339 "2021-05-07T16:15:38Z")

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Hi guys, I was installing a new node when "access to server lost appeared" in the browser. Since then, I couldn't have Node Red work properly, and the following error is showing in the logs: Error: connect ECONNREFUSED …

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## [Node-RED Virtual device instances](https://discourse.nodered.org/t/node-red-virtual-device-instances/45333)

<div class="topic-metadata">

**Author:** [@tetrived](https://discourse.nodered.org/u/tetrived)\
**Replies:** 2\
**Last updated:** [7 May 2021 15:57 UTC](https://discourse.nodered.org/t/node-red-virtual-device-instances/45333 "2021-05-07T15:57:15Z")

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Hello, We are planning to simulate multiple devices to simulate load on mqtt broker. What would be the best approach ? We have came across " node-red-contrib-iot-virtual-device" node which help to generate multiple vir…

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## [Using node red in Html](https://discourse.nodered.org/t/using-node-red-in-html/45342)

<div class="topic-metadata">

**Author:** [@jake123](https://discourse.nodered.org/u/jake123)\
**Replies:** 5\
**Last updated:** [7 May 2021 15:30 UTC](https://discourse.nodered.org/t/using-node-red-in-html/45342 "2021-05-07T15:30:25Z")

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Could i somehow open node red application in my own html ? Lets say i make a webpage and try to put the application inside some div or something like that

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## [Inject first message then block](https://discourse.nodered.org/t/inject-first-message-then-block/45322)

<div class="topic-metadata">

**Author:** [@scouike](https://discourse.nodered.org/u/scouike)\
**Replies:** 16\
**Last updated:** [7 May 2021 13:26 UTC](https://discourse.nodered.org/t/inject-first-message-then-block/45322 "2021-05-07T13:26:52Z")

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Hello, I use an inject node to send a message automatically at regular interval. My problem is that I want to let it passe the first message and then block (and unblock with conditions). I have the solution to block an…

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## [Creating form then logging entry in SQL](https://discourse.nodered.org/t/creating-form-then-logging-entry-in-sql/44727)

<div class="topic-metadata">

**Author:** [@sahsha](https://discourse.nodered.org/u/sahsha)\
**Replies:** 14\
**Last updated:** [7 May 2021 13:11 UTC](https://discourse.nodered.org/t/creating-form-then-logging-entry-in-sql/44727 "2021-05-07T13:11:30Z")

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Hello everyone, I'm trying to create an entry form check below, flow can anyone help on how to establish logging in SQL or is there a better way to do it. Also, my codding skill is equivalent to an infant :baby\_bottle: …

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## [Buffer to "string"](https://discourse.nodered.org/t/buffer-to-string/45276)

<div class="topic-metadata">

**Author:** [@Archi](https://discourse.nodered.org/u/Archi)\
**Replies:** 6\
**Last updated:** [7 May 2021 13:10 UTC](https://discourse.nodered.org/t/buffer-to-string/45276 "2021-05-07T13:10:45Z")

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Hi, I'm currently working on parsing my payload on node red. So to summarize I have the following payload (which is a buffer): \[70,224,0,0,1,140,0,0,0,0\] And I'm looking for a way / a function to transform it in a stri…

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## [Connection problem to the broker](https://discourse.nodered.org/t/connection-problem-to-the-broker/45325)

<div class="topic-metadata">

**Author:** [@Yaleaura](https://discourse.nodered.org/u/Yaleaura)\
**Replies:** 0\
**Last updated:** [7 May 2021 09:30 UTC](https://discourse.nodered.org/t/connection-problem-to-the-broker/45325 "2021-05-07T09:30:19Z")

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We have a lorawan system (NW + APPS) deployed with Docker on an EC2 (AWS). We installed node-red on this EC2 instance (in docker) and locally on a machine. We are unable to connect to the brocker from node-red installed …

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## [Choose the best module for Amazon Echo - Alexa](https://discourse.nodered.org/t/choose-the-best-module-for-amazon-echo-alexa/45015)

<div class="topic-metadata">

**Author:** [@GiovanniG](https://discourse.nodered.org/u/GiovanniG)\
**Replies:** 8\
**Last updated:** [7 May 2021 11:50 UTC](https://discourse.nodered.org/t/choose-the-best-module-for-amazon-echo-alexa/45015 "2021-05-07T11:50:55Z")

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Hi mates, since now I've used node-red-contrib-amazon-echo, the author made a good work (thanks to him a lot!) but this module has some limitations and he stopped developing it. It emulates only bulbs, and recently Al…

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## [NodeRED Docker image with TimeZone options](https://discourse.nodered.org/t/nodered-docker-image-with-timezone-options/44927)

<div class="topic-metadata">

**Author:** [@Diez66](https://discourse.nodered.org/u/Diez66)\
**Replies:** 5\
**Last updated:** [7 May 2021 11:23 UTC](https://discourse.nodered.org/t/nodered-docker-image-with-timezone-options/44927 "2021-05-07T11:23:23Z")

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Hi, I have looked a lot and I have found many "How to" with no success. Small things like when you type in the line, the command is unknown in the Docker image I have. So, I used IOTStack as well as the official! Docker…

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## [Inquiry about node creations](https://discourse.nodered.org/t/inquiry-about-node-creations/45139)

<div class="topic-metadata">

**Author:** [@Mars-2030](https://discourse.nodered.org/u/Mars-2030)\
**Replies:** 2\
**Last updated:** [7 May 2021 09:09 UTC](https://discourse.nodered.org/t/inquiry-about-node-creations/45139 "2021-05-07T09:09:14Z")

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Hi, Node-red is really an amazing system and easy to use, before proceeding I want to ask if there is a possibility with node-red to create a multitenant connector .. meaning this connector will be built for saas applic…

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## [Node-red: Unable to listen on http://127.0.0.1:1880/](https://discourse.nodered.org/t/node-red-unable-to-listen-on-http-127-0-0-1-1880/45312)

<div class="topic-metadata">

**Author:** [@sterinapen](https://discourse.nodered.org/u/sterinapen)\
**Replies:** 10\
**Last updated:** [7 May 2021 07:52 UTC](https://discourse.nodered.org/t/node-red-unable-to-listen-on-http-127-0-0-1-1880/45312 "2021-05-07T07:52:27Z")

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I am Getting following in my logs even though my node red is running. Can anyone help me understand why am I getting "port in use" error. My setup details: I have nginx listening on port 80 and i have proxy pass th…

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