# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=606

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

**Page:** 607

---

## [This flow is generating interesting files](https://discourse.nodered.org/t/this-flow-is-generating-interesting-files/40637)

<div class="topic-metadata">

**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 8\
**Last updated:** [9 February 2021 20:35 UTC](https://discourse.nodered.org/t/this-flow-is-generating-interesting-files/40637 "2021-02-09T20:35:27Z")

</div>

I wrote this flow recently to try and help track my daily computer usage. The flow: \[{"id":"39fd3a77.cbb756","type":"group","z":"26262ba1.62dcbc","name":"Uptime","style":{"label":true},"nodes":\["ece2d27e.1926e8","4511a…

---

## [Node-red-node-mysql: mysql query blocks node-red](https://discourse.nodered.org/t/node-red-node-mysql-mysql-query-blocks-node-red/40688)

<div class="topic-metadata">

**Author:** [@GPG](https://discourse.nodered.org/u/GPG)\
**Replies:** 1\
**Last updated:** [9 February 2021 20:33 UTC](https://discourse.nodered.org/t/node-red-node-mysql-mysql-query-blocks-node-red/40688 "2021-02-09T20:33:35Z")

</div>

Dears all, unfortunately I had this problem using mysql node. I'm using node-red-node-mysql version 0.1.1 Please refer to previous information and tests in this topic: After different test, it seems that mysql node …

---

## [Html content internet explorer](https://discourse.nodered.org/t/html-content-internet-explorer/40654)

<div class="topic-metadata">

**Author:** [@Frescoboy18](https://discourse.nodered.org/u/Frescoboy18)\
**Replies:** 8\
**Last updated:** [9 February 2021 20:18 UTC](https://discourse.nodered.org/t/html-content-internet-explorer/40654 "2021-02-09T20:18:54Z")

</div>

I am unable to read data from local html link. If I see output of HTTP Request, I can see that it can only be opened in IE7 Emulator or below and Node-Red is only working on IE11. Is there are block in node-red , which…

---

## [CM3 & CM3+ with node red gpio](https://discourse.nodered.org/t/cm3-cm3-with-node-red-gpio/20407)

<div class="topic-metadata">

**Author:** [@SCSJA](https://discourse.nodered.org/u/SCSJA)\
**Replies:** 15\
**Last updated:** [9 February 2021 11:57 UTC](https://discourse.nodered.org/t/cm3-cm3-with-node-red-gpio/20407 "2021-02-09T11:57:03Z")

</div>

I have a project that is utilizing a carrier board (balenaFin) and a Raspberry Pi Compute Module 3. The node red utilized some of the pins as digital inputs and outputs. It was up and working fine, then we were sent th…

---

## [How to extract value from array/object?](https://discourse.nodered.org/t/how-to-extract-value-from-array-object/40698)

<div class="topic-metadata">

**Author:** [@marivesel](https://discourse.nodered.org/u/marivesel)\
**Replies:** 3\
**Last updated:** [9 February 2021 19:23 UTC](https://discourse.nodered.org/t/how-to-extract-value-from-array-object/40698 "2021-02-09T19:23:26Z")

</div>

First to say hello! I want to "extract" only the value data from an array/object. It's a capacity measurement from my solar battery, I need to sent the value only via MQTT. I'm now sending "col28: 260.00", but I need …

---

## [Node-Red Macbook M1](https://discourse.nodered.org/t/node-red-macbook-m1/40601)

<div class="topic-metadata">

**Author:** [@anguslou](https://discourse.nodered.org/u/anguslou)\
**Replies:** 3\
**Last updated:** [9 February 2021 19:23 UTC](https://discourse.nodered.org/t/node-red-macbook-m1/40601 "2021-02-09T19:23:01Z")

</div>

Does Node-Red run on Macbook M1? I am going to buy Macbook M1 but not sure if it runs Node-Red. Any suggestion?

---

## [ADS1115 13digit output confusion](https://discourse.nodered.org/t/ads1115-13digit-output-confusion/39814)

<div class="topic-metadata">

**Author:** [@Theboatbuilder](https://discourse.nodered.org/u/Theboatbuilder)\
**Replies:** 19\
**Last updated:** [9 February 2021 19:07 UTC](https://discourse.nodered.org/t/ads1115-13digit-output-confusion/39814 "2021-02-09T19:07:32Z")

</div>

I have a ADS1115 hooked up - the node (blue dot) reads the correct voltage, 3.297v...but the debug outputs a 13 digit number - which I appear unable to alter by any mathematical or script means - Am I being stupid and mi…

---

## [Error connecting to PLC in node-red-contrib-cip-ethernet-ip](https://discourse.nodered.org/t/error-connecting-to-plc-in-node-red-contrib-cip-ethernet-ip/40668)

<div class="topic-metadata">

**Author:** [@ndz](https://discourse.nodered.org/u/ndz)\
**Replies:** 9\
**Last updated:** [9 February 2021 16:18 UTC](https://discourse.nodered.org/t/error-connecting-to-plc-in-node-red-contrib-cip-ethernet-ip/40668 "2021-02-09T16:18:02Z")

</div>

Hi guys, im sorry if this question looks stupid, im new in node-red. I keep getting this error: Error connecting to PLC: Error: TIMEOUT occurred while attempting to establish TCP connection with Controller. I'm NOT tr…

---

## [Dynamic s7 endpoint configuration](https://discourse.nodered.org/t/dynamic-s7-endpoint-configuration/40684)

<div class="topic-metadata">

**Author:** [@ErosBaixauli](https://discourse.nodered.org/u/ErosBaixauli)\
**Replies:** 0\
**Last updated:** [9 February 2021 15:29 UTC](https://discourse.nodered.org/t/dynamic-s7-endpoint-configuration/40684 "2021-02-09T15:29:55Z")

</div>

Hi to everyone! I'm starting with node-red programming and I need some help with my current project. I already have connected a s7 1200 Siemens PLC to node-red to read/write the process information. The question I hav…

---

## [Join Node: How to concatenate two parameters for payload: "parameteraparameterb" and one more string?](https://discourse.nodered.org/t/join-node-how-to-concatenate-two-parameters-for-payload-parameteraparameterb-and-one-more-string/40641)

<div class="topic-metadata">

**Author:** [@adamelli](https://discourse.nodered.org/u/adamelli)\
**Replies:** 3\
**Last updated:** [9 February 2021 13:56 UTC](https://discourse.nodered.org/t/join-node-how-to-concatenate-two-parameters-for-payload-parameteraparameterb-and-one-more-string/40641 "2021-02-09T13:56:27Z")

</div>

\[{"id":"ad468a8.5cacd78","type":"ui\_dropdown","z":"eff21ca4.4f961","name":"","label":"","tooltip":"","place":"Select option","group":"f7e9d0df.b98c","order":4,"width":"3","height":"1","passthru":true,"multiple":false,"op…

---

## [Scalability of Node RED](https://discourse.nodered.org/t/scalability-of-node-red/40646)

<div class="topic-metadata">

**Author:** [@sathishkumarc14](https://discourse.nodered.org/u/sathishkumarc14)\
**Replies:** 2\
**Last updated:** [9 February 2021 13:36 UTC](https://discourse.nodered.org/t/scalability-of-node-red/40646 "2021-02-09T13:36:25Z")

</div>

We are going to start an IoT project on node red. 10,000 of devices going to send data with TCP (10,000 records/second). Node RED receives with TCP listener node and convert into JSON and publish into MQTT broker. Is t…

---

## [Export Flows to image](https://discourse.nodered.org/t/export-flows-to-image/40195)

<div class="topic-metadata">

**Author:** [@crackytsi](https://discourse.nodered.org/u/crackytsi)\
**Replies:** 14\
**Last updated:** [9 February 2021 12:53 UTC](https://discourse.nodered.org/t/export-flows-to-image/40195 "2021-02-09T12:53:50Z")

</div>

Hi! Is there a way to export a flow to a graphic? E.g. to PNG file or Graphviz dot file? I want to create some automated documentation, where i'm trying to find an export solution. Sharing the exportable json is not re…

---

## [Telegrambot-home: switch: align buttons from top to botton instead left to right](https://discourse.nodered.org/t/telegrambot-home-switch-align-buttons-from-top-to-botton-instead-left-to-right/40627)

<div class="topic-metadata">

**Author:** [@bodagrave](https://discourse.nodered.org/u/bodagrave)\
**Replies:** 1\
**Last updated:** [9 February 2021 12:28 UTC](https://discourse.nodered.org/t/telegrambot-home-switch-align-buttons-from-top-to-botton-instead-left-to-right/40627 "2021-02-09T12:28:09Z")

</div>

Hi Guys! I'm struggling a bit with this one. I'm using the switch node from telegrambot-home. I want to make several buttons available with it. Unfortunately they all show up in one line, which makes the text on it quit…

---

## [Solved: Filter data from JSON](https://discourse.nodered.org/t/solved-filter-data-from-json/40633)

<div class="topic-metadata">

**Author:** [@ueffchen](https://discourse.nodered.org/u/ueffchen)\
**Replies:** 4\
**Last updated:** [9 February 2021 10:08 UTC](https://discourse.nodered.org/t/solved-filter-data-from-json/40633 "2021-02-09T10:08:25Z")

</div>

I would like to filter certain objects from a large json array The jsons look basically like this {"time":1612819223000,"warnings":{"101001000":\[{"regionName":"Stadt Flensburg","end":1612.... and I would create a new …

---

## [Node Red on Windows](https://discourse.nodered.org/t/node-red-on-windows/40367)

<div class="topic-metadata">

**Author:** [@Chorum](https://discourse.nodered.org/u/Chorum)\
**Replies:** 3\
**Last updated:** [9 February 2021 09:50 UTC](https://discourse.nodered.org/t/node-red-on-windows/40367 "2021-02-09T09:50:31Z")

</div>

Hello there, I spend some time to create Flows and i like to work with Node Red. Now i see the need to set up a new Node Red. The Node Reds on which i work on, where setup by our IT. I would like to setup one on my ow…

---

## [Function node to join node?](https://discourse.nodered.org/t/function-node-to-join-node/40614)

<div class="topic-metadata">

**Author:** [@niclas.w82](https://discourse.nodered.org/u/niclas.w82)\
**Replies:** 2\
**Last updated:** [9 February 2021 09:06 UTC](https://discourse.nodered.org/t/function-node-to-join-node/40614 "2021-02-09T09:06:06Z")

</div>

Hi. I will try to explain what i trying to accomplish. I have a large xml file that i want to filter and sort some data. I´m not good i programming but maybe you understad what i trying to accomplish with this code. m…

---

## [Help for alternate "Dawn" signal](https://discourse.nodered.org/t/help-for-alternate-dawn-signal/40625)

<div class="topic-metadata">

**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 26\
**Last updated:** [9 February 2021 08:48 UTC](https://discourse.nodered.org/t/help-for-alternate-dawn-signal/40625 "2021-02-09T08:48:04Z")

</div>

I'm a morning person. It is summer here. But as summer comes to an end, the sun is getting later and later rising in the mornings. As is I use BigTimer to signal Dawn / Dusk. The Dawn signal is used to brighten displ…

---

## [Interrupt NR flow](https://discourse.nodered.org/t/interrupt-nr-flow/40604)

<div class="topic-metadata">

**Author:** [@Vlak](https://discourse.nodered.org/u/Vlak)\
**Replies:** 9\
**Last updated:** [9 February 2021 08:34 UTC](https://discourse.nodered.org/t/interrupt-nr-flow/40604 "2021-02-09T08:34:59Z")

</div>

Hi folks, I just have a question about a flow that I want in NR I have already added a flow image. I really want to be able to interrupt the flow at the position of the star. The example of this flow is one of a simple…

---

## [Cron+ settings. \* vs ? help please](https://discourse.nodered.org/t/cron-settings-vs-help-please/40632)

<div class="topic-metadata">

**Author:** [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Replies:** 2\
**Last updated:** [9 February 2021 07:27 UTC](https://discourse.nodered.org/t/cron-settings-vs-help-please/40632 "2021-02-09T07:27:32Z")

</div>

I'm trying to keep things separate. I've been pointed in the direction of cron+ and in the config line I saw this: 0 30 6 \* \* ? \* Digging I find this: \* Asterisks indicate that the cron expression matches for all val…

---

## [Clickable Image map with global variable](https://discourse.nodered.org/t/clickable-image-map-with-global-variable/40634)

<div class="topic-metadata">

**Author:** [@Jamil100](https://discourse.nodered.org/u/Jamil100)\
**Replies:** 0\
**Last updated:** [8 February 2021 21:56 UTC](https://discourse.nodered.org/t/clickable-image-map-with-global-variable/40634 "2021-02-08T21:56:21Z")

</div>

Hello everyone, I placed an image on my dashboard and I'm using the HTML map tag to click on a specific figure inside that image. Now I was able to get it running but I would like that when I press this figure, to set a…

---

## [Brain teaser: Find first moon phase in defined time range](https://discourse.nodered.org/t/brain-teaser-find-first-moon-phase-in-defined-time-range/39349)

<div class="topic-metadata">

**Author:** [@bodagrave](https://discourse.nodered.org/u/bodagrave)\
**Replies:** 9\
**Last updated:** [8 February 2021 20:58 UTC](https://discourse.nodered.org/t/brain-teaser-find-first-moon-phase-in-defined-time-range/39349 "2021-02-08T20:58:51Z")

</div>

Hi Guys! Well, at least it is a brain teaser for me - I only don't have enough brain to figure it out (obviously :smiley: ) That is what I want to achieve: We have several Holidays on earth linked to a specific moon ph…

---

## [Persistent variables?](https://discourse.nodered.org/t/persistent-variables/40168)

<div class="topic-metadata">

**Author:** [@fmarzocca](https://discourse.nodered.org/u/fmarzocca)\
**Replies:** 12\
**Last updated:** [8 February 2021 21:14 UTC](https://discourse.nodered.org/t/persistent-variables/40168 "2021-02-08T21:14:33Z")

</div>

Hi, I am using 15 global variables in my flows, to take care of several status events. If/when I restart node-red or reboot the server, I am losing those variables. Is there any way to make then persistent through resta…

---

## [TCP Request and Ending Session](https://discourse.nodered.org/t/tcp-request-and-ending-session/40630)

<div class="topic-metadata">

**Author:** [@dwayne](https://discourse.nodered.org/u/dwayne)\
**Replies:** 0\
**Last updated:** [8 February 2021 20:48 UTC](https://discourse.nodered.org/t/tcp-request-and-ending-session/40630 "2021-02-08T20:48:01Z")

</div>

I have a nice flow using the TCP Message Node and want a clean way of ending the session. Node is set to Never - Keep Session Open. Is there a clean way of closing the session? Here's the flow but assumes a specific de…

---

## [Node-RED hangs after a few deploys (external library)](https://discourse.nodered.org/t/node-red-hangs-after-a-few-deploys-external-library/40486)

<div class="topic-metadata">

**Author:** [@rko](https://discourse.nodered.org/u/rko)\
**Replies:** 7\
**Last updated:** [8 February 2021 17:46 UTC](https://discourse.nodered.org/t/node-red-hangs-after-a-few-deploys-external-library/40486 "2021-02-08T17:46:40Z")

</div>

We are using an external library called node-hid-stream to get data from a barcode reader. The library was installed with npm and "imported" via settings.js into Node-RED: functionGlobalContext: { nodehidstream:…

---

## [Node-red-contrib-finite-statemachine stateChange with values](https://discourse.nodered.org/t/node-red-contrib-finite-statemachine-statechange-with-values/40582)

<div class="topic-metadata">

**Author:** [@Moosbueffel](https://discourse.nodered.org/u/Moosbueffel)\
**Replies:** 4\
**Last updated:** [8 February 2021 16:31 UTC](https://discourse.nodered.org/t/node-red-contrib-finite-statemachine-statechange-with-values/40582 "2021-02-08T16:31:34Z")

</div>

I want to watch my washing machine. I found the mentioned FSM and it seems to me a good starting point. But did I understand the usage wrong?? My first simple Statemachine will be: I have the following JSON: { "…

---

## [How to install node-red-admin in docker image](https://discourse.nodered.org/t/how-to-install-node-red-admin-in-docker-image/10877)

<div class="topic-metadata">

**Author:** [@mauog](https://discourse.nodered.org/u/mauog)\
**Replies:** 2\
**Last updated:** [8 February 2021 16:13 UTC](https://discourse.nodered.org/t/how-to-install-node-red-admin-in-docker-image/10877 "2021-02-08T16:13:27Z")

</div>

Hello, I would like to secure my node-red installation using user/password. So I would need to use node-red-admin tool to generate the password hash. I am using the nodered/node-red-docker docker image. I tried to l…

---

## [Alexa custom list issues](https://discourse.nodered.org/t/alexa-custom-list-issues/40605)

<div class="topic-metadata">

**Author:** [@yawstick1](https://discourse.nodered.org/u/yawstick1)\
**Replies:** 2\
**Last updated:** [8 February 2021 13:57 UTC](https://discourse.nodered.org/t/alexa-custom-list-issues/40605 "2021-02-08T13:57:01Z")

</div>

I've been experimenting with the alexa lists sample code here if you already have a custom list on your alexa it will show up in the list of lists when you are setting up this flow. I have modified the flow to access…

---

## [Conexão com o bluemix](https://discourse.nodered.org/t/conexao-com-o-bluemix/40613)

<div class="topic-metadata">

**Author:** [@emerson4594](https://discourse.nodered.org/u/emerson4594)\
**Replies:** 0\
**Last updated:** [8 February 2021 14:06 UTC](https://discourse.nodered.org/t/conexao-com-o-bluemix/40613 "2021-02-08T14:06:07Z")

</div>

Não estou conseguindo conectar com o bluemix aparece a seguinte mensagem "\[wiot:connectionPool:getClient\] Error: Connection refused: Not authorized"

---

## [Cannot find module Leap Motion](https://discourse.nodered.org/t/cannot-find-module-leap-motion/40530)

<div class="topic-metadata">

**Author:** [@hfsousa](https://discourse.nodered.org/u/hfsousa)\
**Replies:** 5\
**Last updated:** [8 February 2021 13:46 UTC](https://discourse.nodered.org/t/cannot-find-module-leap-motion/40530 "2021-02-08T13:46:47Z")

</div>

Hi, I am having a hard time using Leap Motion on node-red. As anyone been able to use https://flows.nodered.org/node/node-red-contrib-leap-motion this ? On node-red it looks like a file is missing but I can't figure i…

---

## [Help with inserting payload in template](https://discourse.nodered.org/t/help-with-inserting-payload-in-template/40443)

<div class="topic-metadata">

**Author:** [@niclas.w82](https://discourse.nodered.org/u/niclas.w82)\
**Replies:** 3\
**Last updated:** [8 February 2021 13:21 UTC](https://discourse.nodered.org/t/help-with-inserting-payload-in-template/40443 "2021-02-08T13:21:31Z")

</div>

Hi. I want to insert payload from an xml in a template node. I have succseded with a ui form but i don´t know why this is not working? \[{"id":"f53853fa.2a74","type":"template","z":"75a648ae.abdc08","name":"","field":…

[Previous page](https://discourse.nodered.org/c/general/7.md?page=605)

[Next page](https://discourse.nodered.org/c/general/7.md?page=607)