# About the General category

**URL:** <https://discourse.nodered.org/t/about-the-general-category/15>\
**Category:** General\
**Created:** [24 April 2018 21:54 UTC](https://discourse.nodered.org/t/about-the-general-category/15 "2018-04-24T21:54:37Z")\
**Posts on this page:** 20\
**Page:** 1

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**Author:** ![knolleary](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/knolleary/32/3_2.png) [@knolleary](https://discourse.nodered.org/u/knolleary)\
**Post date:** [24 April 2018 21:54 UTC](https://discourse.nodered.org/t/about-the-general-category/15/1 "2018-04-24T21:54:37Z")

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If you aren’t sure where to ask, start here.

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**Author:** ![variyaSandip](https://avatars.discourse-cdn.com/v4/letter/v/ec9cab/32.png) [@variyaSandip](https://discourse.nodered.org/u/variyaSandip)\
**Post date:** [11 June 2018 08:14 UTC](https://discourse.nodered.org/t/about-the-general-category/15/2 "2018-06-11T08:14:00Z")

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How to possible aes128 encrypt and decrypt?

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**Author:** ![Sohit18595](https://avatars.discourse-cdn.com/v4/letter/s/bc79bd/32.png) [@Sohit18595](https://discourse.nodered.org/u/Sohit18595)\
**Post date:** [30 July 2019 09:23 UTC](https://discourse.nodered.org/t/about-the-general-category/15/4 "2019-07-30T09:23:28Z")

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How to load JSON by passing node flow id in node-red on initial start

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**Author:** ![Colin](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/colin/32/17040_2.png) [@Colin](https://discourse.nodered.org/u/Colin)\
**Post date:** [30 July 2019 15:40 UTC](https://discourse.nodered.org/t/about-the-general-category/15/5 "2019-07-30T15:40:53Z")

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You have asked this question under the title "About the General category". You should start a new post with a title that indicates what your question is about. However, if you mean how can you start node red and tell it which flows file to run then see [https://nodered.org/docs/getting-started/local#command-line-usage](https://nodered.org/docs/getting-started/local#command-line-usage)  
If you have any follow up to this then please start a new post with an appropriate title.

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**Author:** ![Jeroen](https://avatars.discourse-cdn.com/v4/letter/j/bbe5ce/32.png) [@Jeroen](https://discourse.nodered.org/u/Jeroen)\
**Post date:** [12 September 2019 13:46 UTC](https://discourse.nodered.org/t/about-the-general-category/15/6 "2019-09-12T13:46:19Z")

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I have a question about the information that comes from the azure registry node. Where can I best place this question?

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**Author:** ![Botschafter](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/botschafter/32/14781_2.png) [@Botschafter](https://discourse.nodered.org/u/Botschafter)\
**Post date:** [15 September 2019 16:24 UTC](https://discourse.nodered.org/t/about-the-general-category/15/7 "2019-09-15T16:24:08Z")

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Anfänger  
möchte gern wissen, evtl. mit praktischen Beispielen, was über diese Plattform alles möglich und machbar ist ?

Herzlichen Dank im Voraus und freundliche Grüße i.d.Runde  
wowo

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**Author:** ![everton\_aparecido](https://avatars.discourse-cdn.com/v4/letter/e/f475e1/32.png) [@everton\_aparecido](https://discourse.nodered.org/u/everton_aparecido)\
**Post date:** [18 December 2019 13:58 UTC](https://discourse.nodered.org/t/about-the-general-category/15/9 "2019-12-18T13:58:10Z")

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How to get value from array and send by SQL?

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**Author:** ![syedlnt](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/syedlnt/32/27382_2.png) [@syedlnt](https://discourse.nodered.org/u/syedlnt)\
**Post date:** [18 August 2020 13:46 UTC](https://discourse.nodered.org/t/about-the-general-category/15/11 "2020-08-18T13:46:55Z")

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hi

past 6 month i am using node-red on IOT2040 Siemens Gatelway

Node-red V0.19

facing issue with node-red past two days,  
node-red Pallets fails to load in browser, when we check in browser console

the below error

vendor.js:16 Uncaught SyntaxError: Unexpected token ')'  
red.min.js:16 Uncaught ReferenceError: jQuery is not defined  
at red.min.js:16  
(anonymous) @ red.min.js:16  
main.min.js:16 Uncaught ReferenceError: $ is not defined  
at main.min.js:16  
at main.min.js:16

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**Author:** ![Canada](https://avatars.discourse-cdn.com/v4/letter/c/f14d63/32.png) [@Canada](https://discourse.nodered.org/u/Canada)\
**Post date:** [30 September 2020 17:34 UTC](https://discourse.nodered.org/t/about-the-general-category/15/12 "2020-09-30T17:34:41Z")

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When I try and post a new topic it says add a user?

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**Author:** ![Canada](https://avatars.discourse-cdn.com/v4/letter/c/f14d63/32.png) [@Canada](https://discourse.nodered.org/u/Canada)\
**Post date:** [30 September 2020 17:42 UTC](https://discourse.nodered.org/t/about-the-general-category/15/13 "2020-09-30T17:42:59Z")

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Can you help me finish this flow please, i am getting Invalid input: NaN

Here is my flow

```auto
[{"id":"f8ffbc74.d4852","type":"ui_heater_controller","z":"3c18521c.5f221e","name":"heater","group":"835b44b6.ccfa28","unit":"C","order":1,"width":"6","height":3,"topic":"","title":"","logLengthType":"days","logLength":1,"sliderMinValue":38,"sliderMaxValue":41,"sliderStep":0.5,"thresholdRising":0.5,"thresholdFalling":0.5,"calendar":"{\n \"Monday\": {\n \"00:00\": 40,\n \"06:20\": 40,\n \"08:00\": 40,\n \"16:40\": 39,\n \"19:00\": 40\n },\n \"Tuesday\": {\n \"00:00\": 40,\n \"06:20\": 40,\n \"08:00\": 40,\n \"16:40\": 39,\n \"19:00\": 40\n },\n \"Wednesday\": {\n \"00:00\": 40,\n \"06:20\": 40,\n \"08:00\": 40,\n \"16:40\": 39,\n \"19:00\": 40\n },\n \"Thursday\": {\n \"00:00\": 40,\n \"06:20\": 40,\n \"08:00\": 40,\n \"16:40\": 39,\n \"19:00\": 40\n },\n \"Friday\": {\n \"00:00\": 40,\n \"06:20\": 40,\n \"08:00\": 40,\n \"16:40\": 39,\n \"19:00\": 40\n },\n \"Saturday\": {\n \"00:00\": 40,\n \"06:20\": 40,\n \"08:00\": 40,\n \"16:40\": 39,\n \"19:00\": 40\n },\n \"Sunday\": {\n \"00:00\": 40,\n \"06:20\": 40,\n \"08:00\": 40,\n \"16:40\": 39,\n \"19:00\": 40\n }\n}","x":630,"y":180,"wires":[["ab75dbe8.c215f","df9315d8.b8ff38"]]},{"id":"835b44b6.ccfa28","type":"ui_group","z":"","name":"Home","tab":"33bb299b.35015e","order":1,"disp":true,"width":"6","collapse":false},{"id":"33bb299b.35015e","type":"ui_tab","z":"","name":"Home","icon":"dashboard","disabled":false,"hidden":false}]``

```

[{"id":"f8ffbc74.d4852","type":"ui\_heater\_controller","z":"3c18521c.5f221e","name":"heater","group":"835b44b6.ccfa28","unit":"C","order":1,"width":"6","height":3,"topic":"","title":"","logLengthType":"days","logLength":1,"sliderMinValue":38,"sliderMaxValue":41,"sliderStep":0.5,"thresholdRising":0.5,"thresholdFalling":0.5,"calendar":"{\n "Monday": {\n "00:00": 40,\n "06:20": 40,\n "08:00": 40,\n "16:40": 39,\n "19:00": 40\n },\n "Tuesday": {\n "00:00": 40,\n "06:20": 40,\n "08:00": 40,\n "16:40": 39,\n "19:00": 40\n },\n "Wednesday": {\n "00:00": 40,\n "06:20": 40,\n "08:00": 40,\n "16:40": 39,\n "19:00": 40\n },\n "Thursday": {\n "00:00": 40,\n "06:20": 40,\n "08:00": 40,\n "16:40": 39,\n "19:00": 40\n },\n "Friday": {\n "00:00": 40,\n "06:20": 40,\n "08:00": 40,\n "16:40": 39,\n "19:00": 40\n },\n "Saturday": {\n "00:00": 40,\n "06:20": 40,\n "08:00": 40,\n "16:40": 39,\n "19:00": 40\n },\n "Sunday": {\n "00:00": 40,\n "06:20": 40,\n "08:00": 40,\n "16:40": 39,\n "19:00": 40\n }\n}","x":630,"y":180,"wires":[["ab75dbe8.c215f","df9315d8.b8ff38"]]},{"id":"835b44b6.ccfa28","type":"ui\_group","z":"","name":"Home","tab":"33bb299b.35015e","order":1,"disp":true,"width":"6","collapse":false},{"id":"33bb299b.35015e","type":"ui\_tab","z":"","name":"Home","icon":"dashboard","disabled":false,"hidden":false}]``

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<div class="post-metadata">

**Author:** ![Bolle01](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/bolle01/32/56844_2.png) [@Bolle01](https://discourse.nodered.org/u/Bolle01)\
**Post date:** [5 April 2021 15:11 UTC](https://discourse.nodered.org/t/about-the-general-category/15/14 "2021-04-05T15:11:33Z")

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Hi, i am a newbee.  
I flashed a ESP 32 Module with Tasmota and want to disassemble the Payload in Temperature and Humidity, but i fail.

The Payload String shows " {"Time":"2021-04-04T14:17:58","DHT11":{"Temperature":34.6,"Humidity":27.0,"DewPoint":12.8},"TempUnit":"C"} "

I tried with a Function Node

1 msg.payload = msg.Temperature;  
2 return msg;

and another for Humidity

1 msg.payload = msg.Humidity;  
2 return msg;

Is there anyone to Explain my Problem. Normaly it must work ?

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<div class="post-metadata">

**Author:** ![Colin](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/colin/32/17040_2.png) [@Colin](https://discourse.nodered.org/u/Colin)\
**Post date:** [5 April 2021 15:25 UTC](https://discourse.nodered.org/t/about-the-general-category/15/15 "2021-04-05T15:25:27Z")

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The reason it is failing is that the payload is a JSON string, you need it to be converted to a javascript object. Assuming that is coming from an MQTT node if you set it to output a parsed json object then it will parse the string and convert it to a js object for you.

> [@Bolle01](#):
>
> msg.payload = msg.Temperature;

Also, that should be  
`msg.payload = msg.payload.Temperature`

**[Edit]** Why have you added your question to an old thread that itself does not have a useful title. If you have further questions please start a new thread.  
I should have said 'Welcome to the forum`, so welcome.

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<div class="post-metadata">

**Author:** ![Trev1951](https://avatars.discourse-cdn.com/v4/letter/t/e19b73/32.png) [@Trev1951](https://discourse.nodered.org/u/Trev1951)\
**Post date:** [26 June 2021 09:43 UTC](https://discourse.nodered.org/t/about-the-general-category/15/16 "2021-06-26T09:43:44Z")

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I have just joined this forum and am getting my feet wet with how to post and navigate. Any help be great.

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<div class="post-metadata">

**Author:** ![DKnight](https://avatars.discourse-cdn.com/v4/letter/d/eb9ed0/32.png) [@DKnight](https://discourse.nodered.org/u/DKnight)\
**Post date:** [11 July 2021 06:08 UTC](https://discourse.nodered.org/t/about-the-general-category/15/17 "2021-07-11T06:08:11Z")

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I have a "get history node" set to 1 minute of history that returns multiple payloads from a motion detector and is followed by a "switch node". There is always at least one payload with an "off" state and zero, one, or multiple msg.payload returns with an 'on' state. A basic msg.payload where motion has been detected in this situation looks like this:

{"entity\_id":"binary\_sensor.motion",  
"state":"off"}  
{"entity\_id":"binary\_sensor.motion",  
"state":"on"}

I need to turn off the light if there has been no motion in the last minute. I use the switch node with an item to detect msg.payload.state of 'on' and a second item to detect 'off' ... then I realized I always get an 'off' along with any 'on' msg payload that might appear ... so my light ALWAYS turns off even if there is motion. LoL. So I flipped on the checkbox that says "stopping after first match" ... and even when it matches the first item ("on") it continues on to check the 2nd item ("off") and the lights turn off.

I've spent a couple of hours trying out different variants on how to use the "get history node" results in this situation and I've not found a functional way to move to the next node after the switch node exclusively when no "on" state is detected in the last minute. I'm new at this and any help is appreciated.

Install:  
RPi4  
Node-Red 9.2.0  
Core-2021.6.6

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<div class="post-metadata">

**Author:** ![fco4292](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/fco4292/32/50262_2.png) [@fco4292](https://discourse.nodered.org/u/fco4292)\
**Post date:** [30 October 2021 21:41 UTC](https://discourse.nodered.org/t/about-the-general-category/15/19 "2021-10-30T21:41:00Z")

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Pb with node-red contrib-xstate-machine update to 1.2.2  
After having updated node-red to v2.1.3 and with node.js version v14.11.0 on Linux 5.8.0-63 x64 LE and using npm version v6.14.8  
I tried to update node-red contrib-xstate-machine from v1.11 to 1.2.2 and I got the following error message as shown below. Any idea to get around?

Thanks in advance.  
BR  
François

2021-10-30T21:28:43.264Z Install : node-red-contrib-xstate-machine 1.2.2  
2021-10-30T21:28:43.303Z npm install --no-audit --no-update-notifier --no-fund --save --save-prefix=~ --production --engine-strict node-red-contrib-xstate-machine@1.2.2  
2021-10-30T21:28:45.252Z [err] npm WARN  
2021-10-30T21:28:45.252Z [err] read-shrinkwrap This version of npm is compatible with lockfileVersion@1, but package-lock.json was generated for lockfileVersion@2. I'll try to do my best with it!  
2021-10-30T21:28:46.560Z [err] npm ERR! code ENOTSUP  
2021-10-30T21:28:46.563Z [err] npm ERR!  
2021-10-30T21:28:46.563Z [err] notsup Unsupported engine for state-machine-cat@9.2.0: wanted: {"node":"^12.20||^14.13.1||\>=16"} (current: {"node":"14.11.0","npm":"6.14.8"})  
2021-10-30T21:28:46.563Z [err] npm ERR! notsup Not compatible with your version of node/npm: state-machine-cat@9.2.0  
2021-10-30T21:28:46.563Z [err] npm ERR! notsup Not compatible with your version of node/npm: state-machine-cat@9.2.0  
2021-10-30T21:28:46.563Z [err] npm ERR! notsup Required: {"node":"^12.20||^14.13.1||\>=16"}  
2021-10-30T21:28:46.563Z [err] npm ERR!  
2021-10-30T21:28:46.565Z [err] notsup Actual: {"npm":"6.14.8","node":"14.11.0"}

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<div class="post-metadata">

**Author:** ![Colin](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/colin/32/17040_2.png) [@Colin](https://discourse.nodered.org/u/Colin)\
**Post date:** [31 October 2021 07:16 UTC](https://discourse.nodered.org/t/about-the-general-category/15/20 "2021-10-31T07:16:48Z")

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The version of nodejs you have is not compatible with the node. How did you install node red and nodejs?  
If you are using Debian based system what does this show?  
`apt policy nodejs`  
Or if it is an old system  
`apt-cache policy nodejs`

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<div class="post-metadata">

**Author:** ![fco4292](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/fco4292/32/50262_2.png) [@fco4292](https://discourse.nodered.org/u/fco4292)\
**Post date:** [31 October 2021 09:43 UTC](https://discourse.nodered.org/t/about-the-general-category/15/21 "2021-10-31T09:43:08Z")

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I installed node-red using  
`sudo npm install -g --unsafe-perm node-red`  
For nodejs, it is too old to be sure but something like  
`sudo apt-get install nodejs npm`  
but I never updated nodejs.  
`apt policy nodejs` shows

```auto
nodejs:
  Installé : 12.18.2~dfsg-1ubuntu2
  Candidat : 12.18.2~dfsg-1ubuntu2
 Table de version :
 *** 12.18.2~dfsg-1ubuntu2 500
        500 http://fr.archive.ubuntu.com/ubuntu groovy/universe amd64 Packages
        100 /var/lib/dpkg/status

```

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<div class="post-metadata">

**Author:** ![Colin](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/colin/32/17040_2.png) [@Colin](https://discourse.nodered.org/u/Colin)\
**Post date:** [31 October 2021 10:02 UTC](https://discourse.nodered.org/t/about-the-general-category/15/22 "2021-10-31T10:02:13Z")

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Ubuntu 20.10 is out of support, you should upgrade to 21.04 or higher.

However, if you don't want to do that (or even if you do upgrade Ubuntu) then if you uninstall nodejs using  
`sudo apt remove nodejs npm`  
and then run the [recommended Pi/Debian/Ubuntu script](https://nodered.org/docs/getting-started/raspberrypi) then it will install a later version of nodejs and upgrade node-red to the latest (if it is not there already).

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<div class="post-metadata">

**Author:** ![jts450](https://avatars.discourse-cdn.com/v4/letter/j/ee59a6/32.png) [@jts450](https://discourse.nodered.org/u/jts450)\
**Post date:** [8 March 2022 22:21 UTC](https://discourse.nodered.org/t/about-the-general-category/15/23 "2022-03-08T22:21:17Z")

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I tried to search for this Ascii node in manage pallet but I cant find it. Is this node no longer available to add to pallet?

[https://flows.nodered.org/flow/1537326036be1337a38cd2661f6abaf2](https://flows.nodered.org/flow/1537326036be1337a38cd2661f6abaf2)

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<div class="post-metadata">

**Author:** ![Colin](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/colin/32/17040_2.png) [@Colin](https://discourse.nodered.org/u/Colin)\
**Post date:** [9 March 2022 08:05 UTC](https://discourse.nodered.org/t/about-the-general-category/15/24 "2022-03-09T08:05:16Z")

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Welcome to the forum @jts450

If you follow the link to the GitHub repository you will see there is nothing there.  
However, you don't need a node for what it does. Can you give an example of the data you have and exactly what you want it converted to please

[Next page](https://discourse.nodered.org/t/about-the-general-category/15.md?page=2)