# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=883

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

**Page:** 884

---

## [Linked Docker Container](https://discourse.nodered.org/t/linked-docker-container/11424)

<div class="topic-metadata">

**Author:** [@saramcc](https://discourse.nodered.org/u/saramcc)\
**Replies:** 2\
**Last updated:** [23 May 2019 15:37 UTC](https://discourse.nodered.org/t/linked-docker-container/11424 "2019-05-23T15:37:10Z")

</div>

Hi, I am very new to Node-Red and Docker. I've created two docker containers - one runs node-red and the other a console application. In my docker-compose file, I am linking the console container to the node-red contai…

---

## [Nodes for time scheduling](https://discourse.nodered.org/t/nodes-for-time-scheduling/11283)

<div class="topic-metadata">

**Author:** [@Bobo](https://discourse.nodered.org/u/Bobo)\
**Replies:** 11\
**Last updated:** [23 May 2019 15:35 UTC](https://discourse.nodered.org/t/nodes-for-time-scheduling/11283 "2019-05-23T15:35:32Z")

</div>

I am looking for a node that can schedule events over a calendar year. Searching pulls up only a couple of scheduling nodes that seem capable of this, none of which really inspire me to use. The BigTimer node may do what…

---

## [Problems when running Node-RED headless](https://discourse.nodered.org/t/problems-when-running-node-red-headless/11453)

<div class="topic-metadata">

**Author:** [@PedroJG](https://discourse.nodered.org/u/PedroJG)\
**Replies:** 2\
**Last updated:** [23 May 2019 10:25 UTC](https://discourse.nodered.org/t/problems-when-running-node-red-headless/11453 "2019-05-23T10:25:15Z")

</div>

I'm running Node-RED v0.20.5 on a Ubuntu 18 Virtual Machine with Node.js v8.10.0, I have created a very simple flow that emails me every 2 minutes to make sure the flow gets properly run. When I start my Node-RED with t…

---

## [Node red installation is failing](https://discourse.nodered.org/t/node-red-installation-is-failing/11445)

<div class="topic-metadata">

**Author:** [@Suresh](https://discourse.nodered.org/u/Suresh)\
**Replies:** 5\
**Last updated:** [23 May 2019 09:38 UTC](https://discourse.nodered.org/t/node-red-installation-is-failing/11445 "2019-05-23T09:38:42Z")

</div>

Node-Red installation failing with the error "No compatible version found: node-red-node-rbe@'^0.2.4'" . Please see error below. Following versions installed in my system. npm -v 1.2.32 node -v v0.10.12 npm ERR! Err…

---

## [How to split a payload ? And display information on Dashboard](https://discourse.nodered.org/t/how-to-split-a-payload-and-display-information-on-dashboard/11195)

<div class="topic-metadata">

**Author:** [@LoupiasM](https://discourse.nodered.org/u/LoupiasM)\
**Replies:** 15\
**Last updated:** [23 May 2019 09:15 UTC](https://discourse.nodered.org/t/how-to-split-a-payload-and-display-information-on-dashboard/11195 "2019-05-23T09:15:49Z")

</div>

Hello everyone, I'm a French student who discovered Node-Red one month ago. I need help because i want to split the information of the payload And display the information on differents gauge, so i try to use the spl…

---

## [Interconnection with Yokogawa VNet](https://discourse.nodered.org/t/interconnection-with-yokogawa-vnet/11366)

<div class="topic-metadata">

**Author:** [@Pons](https://discourse.nodered.org/u/Pons)\
**Replies:** 3\
**Last updated:** [23 May 2019 08:27 UTC](https://discourse.nodered.org/t/interconnection-with-yokogawa-vnet/11366 "2019-05-23T08:27:53Z")

</div>

Hi, has anyone done node red projects to interface with Yokogawa DCS via VNet?

---

## [Fatal error: commiting semi space failed. Node-red stops](https://discourse.nodered.org/t/fatal-error-commiting-semi-space-failed-node-red-stops/11272)

<div class="topic-metadata">

**Author:** [@johanmeer](https://discourse.nodered.org/u/johanmeer)\
**Replies:** 3\
**Last updated:** [23 May 2019 06:53 UTC](https://discourse.nodered.org/t/fatal-error-commiting-semi-space-failed-node-red-stops/11272 "2019-05-23T06:53:43Z")

</div>

I have an ESP8266 that sends data from the DHT22 sensor to node-red via MQTT. I have also installed the buienradar node. Node-red stopped last 2 nights. In the log I first see these lines 6x in a time of 10 minutes: 18…

---

## [Error while lauching Node-Red: "It looks like serialport didn't compile properly. This is a common problem and its fix is well documented here https://github.com/voodootikigod/node-serialport#to-install"](https://discourse.nodered.org/t/error-while-lauching-node-red-it-looks-like-serialport-didnt-compile-properly-this-is-a-common-problem-and-its-fix-is-well-documented-here-https-github-com-voodootikigod-node-serialport-to-install/11395)

<div class="topic-metadata">

**Author:** [@Jasurf](https://discourse.nodered.org/u/Jasurf)\
**Replies:** 7\
**Last updated:** [22 May 2019 20:07 UTC](https://discourse.nodered.org/t/error-while-lauching-node-red-it-looks-like-serialport-didnt-compile-properly-this-is-a-common-problem-and-its-fix-is-well-documented-here-https-github-com-voodootikigod-node-serialport-to-install/11395 "2019-05-22T20:07:36Z")

</div>

Hi Guys, While I was updating "Node-Red Dashboard" to the latest version, Node-Red crashed on me and when I tried to re-launch it, I started getting this error: "It looks like serialport didn't compile properly. This i…

---

## [How to check network switch or computers alive with PING](https://discourse.nodered.org/t/how-to-check-network-switch-or-computers-alive-with-ping/11405)

<div class="topic-metadata">

**Author:** [@muharremsari](https://discourse.nodered.org/u/muharremsari)\
**Replies:** 6\
**Last updated:** [22 May 2019 18:52 UTC](https://discourse.nodered.org/t/how-to-check-network-switch-or-computers-alive-with-ping/11405 "2019-05-22T18:52:58Z")

</div>

I would get alive signal with PING from net device. I was use ping-notification and saw response time on debug monitor. How i convert response time to BOOLEAN value FALSE or TRUE for "Communication Is Ok" \[{"id":"b86d0…

---

## [Don't open launch node-red](https://discourse.nodered.org/t/dont-open-launch-node-red/11431)

<div class="topic-metadata">

**Author:** [@Tentelete](https://discourse.nodered.org/u/Tentelete)\
**Replies:** 1\
**Last updated:** [22 May 2019 17:42 UTC](https://discourse.nodered.org/t/dont-open-launch-node-red/11431 "2019-05-22T17:42:21Z")

</div>

I am new to node-red and using the telegram packet but when I start node-red I have the following error: Starting as a systemd service. 22 May 17:19:14 - \[info\] \[mqtt-broker:MQTT Raspi 57\] Connected to broker: mqtt://19…

---

## [Trouble writing to an InfluxDB](https://discourse.nodered.org/t/trouble-writing-to-an-influxdb/11357)

<div class="topic-metadata">

**Author:** [@Darryn](https://discourse.nodered.org/u/Darryn)\
**Replies:** 10\
**Last updated:** [22 May 2019 16:22 UTC](https://discourse.nodered.org/t/trouble-writing-to-an-influxdb/11357 "2019-05-22T16:22:48Z")

</div>

Hi all Im fairly new to the likes of programming and tinkering with raspberryPi. My first project that I am trying to implement is a counter which uses 4 inductive sensors to count from four separate machines. To begin …

---

## [NodeRed health detection](https://discourse.nodered.org/t/nodered-health-detection/9691)

<div class="topic-metadata">

**Author:** [@jacyuan](https://discourse.nodered.org/u/jacyuan)\
**Replies:** 5\
**Last updated:** [22 May 2019 11:46 UTC](https://discourse.nodered.org/t/nodered-health-detection/9691 "2019-05-22T11:46:55Z")

</div>

Hello, While using tools like kubernetes to deploy NodeRed instances, we need to provide probe endpoints for health check. While having NodeRed editor enabled, we can check its health with a simple http get on / endpoi…

---

## [Task scheduler seems to hinder adminAuth](https://discourse.nodered.org/t/task-scheduler-seems-to-hinder-adminauth/11406)

<div class="topic-metadata">

**Author:** [@Louise](https://discourse.nodered.org/u/Louise)\
**Replies:** 2\
**Last updated:** [22 May 2019 10:16 UTC](https://discourse.nodered.org/t/task-scheduler-seems-to-hinder-adminauth/11406 "2019-05-22T10:16:30Z")

</div>

Hello, I use adminAuth in my settings file to secure node-red with username and password and this works perfectly fine, until I use task scheduler to autoboot node-red. When I do this I do not have to login anymore to g…

---

## [Use file node to read text file](https://discourse.nodered.org/t/use-file-node-to-read-text-file/11304)

<div class="topic-metadata">

**Author:** [@Kwonsoyeong](https://discourse.nodered.org/u/Kwonsoyeong)\
**Replies:** 3\
**Last updated:** [22 May 2019 07:42 UTC](https://discourse.nodered.org/t/use-file-node-to-read-text-file/11304 "2019-05-22T07:42:12Z")

</div>

I use timestamp and this node to read text file . I want to no use timestamp to read text file. What I to do?

---

## [How to start Node-Red with closed palette category](https://discourse.nodered.org/t/how-to-start-node-red-with-closed-palette-category/11343)

<div class="topic-metadata">

**Author:** [@kmaepu](https://discourse.nodered.org/u/kmaepu)\
**Replies:** 2\
**Last updated:** [22 May 2019 01:43 UTC](https://discourse.nodered.org/t/how-to-start-node-red-with-closed-palette-category/11343 "2019-05-22T01:43:03Z")

</div>

When you start Node-Red and access it from a browser, you will see the palette category expanded. Is there a way to start with the palette category closed?

---

## [Installing tensorflow](https://discourse.nodered.org/t/installing-tensorflow/11394)

<div class="topic-metadata">

**Author:** [@khalil](https://discourse.nodered.org/u/khalil)\
**Replies:** 1\
**Last updated:** [21 May 2019 22:35 UTC](https://discourse.nodered.org/t/installing-tensorflow/11394 "2019-05-21T22:35:48Z")

</div>

Hi everyone I am trying to install tensorflow on my raspbery pi3. I used the command "pip install tensorflow" after a long time i got a bunch of warning like those can anybody tell me how to fix it ?

---

## [Join Device Modbus Device](https://discourse.nodered.org/t/join-device-modbus-device/11372)

<div class="topic-metadata">

**Author:** [@afiqkimii](https://discourse.nodered.org/u/afiqkimii)\
**Replies:** 1\
**Last updated:** [21 May 2019 21:45 UTC](https://discourse.nodered.org/t/join-device-modbus-device/11372 "2019-05-21T21:45:38Z")

</div>

When registering a device, we need to fill 1.register name 2.register address 3.R/W method The R/W method has read function 01,02,03,04 write function 05,06,15,16. Can i know the details of the list of those R/W method…

---

## [Influx stopped writing data](https://discourse.nodered.org/t/influx-stopped-writing-data/11324)

<div class="topic-metadata">

**Author:** [@Colin](https://discourse.nodered.org/u/Colin)\
**Replies:** 25\
**Last updated:** [21 May 2019 20:45 UTC](https://discourse.nodered.org/t/influx-stopped-writing-data/11324 "2019-05-21T20:45:23Z")

</div>

Before going to the influx forum I thought I would try here in case anyone has seen a similar problem. After working perfectly for months influx suddenly stopped writing data at exactly midnight UTC this morning. I was…

---

## [Cant find process.env settings](https://discourse.nodered.org/t/cant-find-process-env-settings/1800)

<div class="topic-metadata">

**Author:** [@georgeena\_thomas](https://discourse.nodered.org/u/georgeena_thomas)\
**Replies:** 3\
**Last updated:** [21 May 2019 19:24 UTC](https://discourse.nodered.org/t/cant-find-process-env-settings/1800 "2019-05-21T19:24:24Z")

</div>

I have a node-red flow that pulls in env variables from a process.env node but I can't seem to find where exactly it is setting those values in my project.

---

## [What am I missing?](https://discourse.nodered.org/t/what-am-i-missing/11380)

<div class="topic-metadata">

**Author:** [@maxxam](https://discourse.nodered.org/u/maxxam)\
**Replies:** 21\
**Last updated:** [21 May 2019 19:09 UTC](https://discourse.nodered.org/t/what-am-i-missing/11380 "2019-05-21T19:09:06Z")

</div>

Hi, I've just installed node-red and want to test it... I've just followed the simplest example in documentation, but it wont run. my node-red flow Where am I wrong?

---

## [Change node: dynamically set a property](https://discourse.nodered.org/t/change-node-dynamically-set-a-property/11374)

<div class="topic-metadata">

**Author:** [@Andydesjardins](https://discourse.nodered.org/u/Andydesjardins)\
**Replies:** 12\
**Last updated:** [21 May 2019 19:04 UTC](https://discourse.nodered.org/t/change-node-dynamically-set-a-property/11374 "2019-05-21T19:04:43Z")

</div>

Hello, Is there a way to dynamically set a property in a change node? Something like: set flow.mode\[msg.targetMode\].enabled to msg.payload I know I can do it in javascript, but it would be better with a change node. …

---

## [TypeError: node.type.padEnd is not a function](https://discourse.nodered.org/t/typeerror-node-type-padend-is-not-a-function/11316)

<div class="topic-metadata">

**Author:** [@mikejac](https://discourse.nodered.org/u/mikejac)\
**Replies:** 5\
**Last updated:** [21 May 2019 16:57 UTC](https://discourse.nodered.org/t/typeerror-node-type-padend-is-not-a-function/11316 "2019-05-21T16:57:43Z")

</div>

Hi, At some point I started getting these error messages in my logs: May 20 08:43:22 broker1 nodered\[13637\]: TypeError: node.type.padEnd is not a function May 20 08:43:22 broker1 nodered\[13637\]: at Flow.start (/usr…

---

## [Detect page refresh (F5)](https://discourse.nodered.org/t/detect-page-refresh-f5/11377)

<div class="topic-metadata">

**Author:** [@AliBenBelgacem](https://discourse.nodered.org/u/AliBenBelgacem)\
**Replies:** 3\
**Last updated:** [21 May 2019 16:17 UTC](https://discourse.nodered.org/t/detect-page-refresh-f5/11377 "2019-05-21T16:17:29Z")

</div>

Hello, I have a table with list of compsed rows (labels, dropdown, input text ...) When i refresh my web page (F5), i lose all the data in the table. this bhavior is normal since i populate my table with an inject nod…

---

## [Too short user for http request](https://discourse.nodered.org/t/too-short-user-for-http-request/11359)

<div class="topic-metadata">

**Author:** [@DillonW](https://discourse.nodered.org/u/DillonW)\
**Replies:** 4\
**Last updated:** [21 May 2019 15:03 UTC](https://discourse.nodered.org/t/too-short-user-for-http-request/11359 "2019-05-21T15:03:16Z")

</div>

Hi, I am trying to use http request node to acquire a token specified for a service(Based on IBM). The curl format is specified as: curl "https://iam.ng.bluemix.net/identity/token" -d "apikey=12345678&grant\_type=urn%3Ai…

---

## [Splitting Arrays](https://discourse.nodered.org/t/splitting-arrays/11335)

<div class="topic-metadata">

**Author:** [@Spammy](https://discourse.nodered.org/u/Spammy)\
**Replies:** 7\
**Last updated:** [21 May 2019 12:01 UTC](https://discourse.nodered.org/t/splitting-arrays/11335 "2019-05-21T12:01:55Z")

</div>

Lets say I have an array of items. I want to iterate over a subset of these item (using a split and switch) and do a couple of operations on each, the first of which takes some time to complete. So I add a stoptimer node…

---

## [Mastervolt data retrieval with rs485](https://discourse.nodered.org/t/mastervolt-data-retrieval-with-rs485/11306)

<div class="topic-metadata">

**Author:** [@Thewaver](https://discourse.nodered.org/u/Thewaver)\
**Replies:** 5\
**Last updated:** [21 May 2019 11:52 UTC](https://discourse.nodered.org/t/mastervolt-data-retrieval-with-rs485/11306 "2019-05-21T11:52:02Z")

</div>

Hi, I'm a newbie and starting to learn how to use node-red. I'm hoping to eventually understand this enough so I can design a flow that will enable me to pull data from my mastervolt xs3200 inverter. It use a rs485 inter…

---

## [Installation modbus palette](https://discourse.nodered.org/t/installation-modbus-palette/11350)

<div class="topic-metadata">

**Author:** [@abdul](https://discourse.nodered.org/u/abdul)\
**Replies:** 0\
**Last updated:** [21 May 2019 08:05 UTC](https://discourse.nodered.org/t/installation-modbus-palette/11350 "2019-05-21T08:05:08Z")

</div>

Hi, i want to make my computer as modbus server using node-red but when install modbus palette we get error like this : 2019-05-21T07:57:03.954Z Install : node-red-contrib-modbus 4.1.3 2019-05-21T07:56:25.999Z npm inst…

---

## [HTTP request node - authentication keeps turning itself back on](https://discourse.nodered.org/t/http-request-node-authentication-keeps-turning-itself-back-on/11260)

<div class="topic-metadata">

**Author:** [@hazymat](https://discourse.nodered.org/u/hazymat)\
**Replies:** 11\
**Last updated:** [21 May 2019 02:18 UTC](https://discourse.nodered.org/t/http-request-node-authentication-keeps-turning-itself-back-on/11260 "2019-05-21T02:18:44Z")

</div>

Bit of a strange one. Recently I noticed my "turn on the radio" buttons stopped working. These are HTTP request nodes that call my squeezebox server to start playing an audio favourite. When I investigated, I double-ch…

---

## [Is it possible to install node red with directadmin?](https://discourse.nodered.org/t/is-it-possible-to-install-node-red-with-directadmin/11338)

<div class="topic-metadata">

**Author:** [@Andres](https://discourse.nodered.org/u/Andres)\
**Replies:** 3\
**Last updated:** [21 May 2019 00:31 UTC](https://discourse.nodered.org/t/is-it-possible-to-install-node-red-with-directadmin/11338 "2019-05-21T00:31:15Z")

</div>

as the title says, is this possible?

---

## [Maths problem - stuck](https://discourse.nodered.org/t/maths-problem-stuck/11282)

<div class="topic-metadata">

**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 17\
**Last updated:** [20 May 2019 20:29 UTC](https://discourse.nodered.org/t/maths-problem-stuck/11282 "2019-05-20T20:29:46Z")

</div>

I have in my flow a node which compares the RTC and the RPI clock. It looks for a difference. If it is greater than a set value, it sends a message indicating that. But to check I need to do the check both ways. Have…

[Previous page](https://discourse.nodered.org/c/general/7.md?page=882)

[Next page](https://discourse.nodered.org/c/general/7.md?page=884)