# Display CPU Temp from Pi4 on localhost:1880

**URL:** <https://discourse.nodered.org/t/display-cpu-temp-from-pi4-on-localhost-1880/54989>\
**Category:** General\
**Created:** [10 December 2021 10:00 UTC](https://discourse.nodered.org/t/display-cpu-temp-from-pi4-on-localhost-1880/54989 "2021-12-10T10:00:05Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![Sol](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/sol/32/52396_2.png) [@Sol](https://discourse.nodered.org/u/Sol)\
**Post date:** [10 December 2021 10:00 UTC](https://discourse.nodered.org/t/display-cpu-temp-from-pi4-on-localhost-1880/54989/1 "2021-12-10T10:00:05Z")

</div>

I am new to Node-Red. Node-Red is installed on bullseye version of Raspberry.

Started Node Red console on Pi4 and start localhost:1880 in browser.  
I create simple nodes that flow from "timestamp" into function node "exec" and end with a "debug" node.

When deployed I receive the message of credentials file using generated key...

I change my setting.js file in .node-red directory by activating credentialSecret: "xxx" - xxx being the key change.

Restart Node Red and deploy again. Still I get the same error message  
What to do?

## message: 10 Dec 10:29:34 - [warn]

## Your flow credentials file is encrypted using a system-generated key. If the system-generated key is lost for any reason, your credentials file will not be recoverable, you will have to delete it and re-enter your credentials. You should set your own key using the 'credentialSecret' option in your settings file. Node-RED will then re-encrypt your credentials file using your chosen key the next time you deploy a change.

10 Dec 10:29:34 - [info] Stopping flows  
10 Dec 10:29:34 - [info] Stopped flows  
10 Dec 10:29:34 - [info] Starting flows  
10 Dec 10:29:34 - [info] Started flows

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<div class="post-metadata">

**Author:** ![hardillb](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/hardillb/32/12373_2.png) [@hardillb](https://discourse.nodered.org/u/hardillb)\
**Post date:** [10 December 2021 10:18 UTC](https://discourse.nodered.org/t/display-cpu-temp-from-pi4-on-localhost-1880/54989/2 "2021-12-10T10:18:57Z")

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Which `settings.js` file did you edit?

You should be editing the one listed in the logs a few lines above that message.

And exactly how did you restart Node-RED?

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<div class="post-metadata">

**Author:** ![Sol](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/sol/32/52396_2.png) [@Sol](https://discourse.nodered.org/u/Sol)\
**Post date:** [10 December 2021 10:24 UTC](https://discourse.nodered.org/t/display-cpu-temp-from-pi4-on-localhost-1880/54989/3 "2021-12-10T10:24:16Z")

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Directory: /home/pi/.node-red/settings.js  
I stopped node-red in the console and restarted it from console again

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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:** [10 December 2021 10:34 UTC](https://discourse.nodered.org/t/display-cpu-temp-from-pi4-on-localhost-1880/54989/4 "2021-12-10T10:34:42Z")

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Can you copy/paste the contents of your settings.js please. When posting code, logs etc please use the `</>` button at the top of the forum entry window and paste the content in.

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<div class="post-metadata">

**Author:** ![hardillb](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/hardillb/32/12373_2.png) [@hardillb](https://discourse.nodered.org/u/hardillb)\
**Post date:** [10 December 2021 10:34 UTC](https://discourse.nodered.org/t/display-cpu-temp-from-pi4-on-localhost-1880/54989/5 "2021-12-10T10:34:54Z")

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Show us exactly how you edited the file (with the key suitably blocked out)

(also just to be sure you didn't use `sudo` to start Node-RED?)

Also did you actually do a deploy after restarting? The creds don't get changed until you deploy (as said in the warning).

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<div class="post-metadata">

**Author:** ![Sol](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/sol/32/52396_2.png) [@Sol](https://discourse.nodered.org/u/Sol)\
**Post date:** [10 December 2021 10:51 UTC](https://discourse.nodered.org/t/display-cpu-temp-from-pi4-on-localhost-1880/54989/6 "2021-12-10T10:51:49Z")

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Changed/saved settings.js in Geany  
The only change in settings.js

```auto
 credentialSecret: "xxx",

```

stop & start command console:  
node-red-stop  
node-red-start

# Welcome to Node-RED

10 Dec 12:06:19 - [info] Node-RED version: v2.1.4  
10 Dec 12:06:19 - [info] Node.js version: v14.18.2  
10 Dec 12:06:19 - [info] Linux 5.10.63-v7l+ arm LE  
10 Dec 12:06:20 - [info] Loading palette nodes  
10 Dec 12:06:21 - [info] Settings file : /home/pi/.node-red/settings.js  
10 Dec 12:06:21 - [info] Context store : 'default' [module=memory]  
10 Dec 12:06:21 - [info] User directory : /home/pi/.node-red  
10 Dec 12:06:21 - [warn] Projects disabled : editorTheme.projects.enabled=false  
10 Dec 12:06:21 - [info] Flows file : /home/pi/.node-red/flows.json  
10 Dec 12:06:21 - [info] Server now running at [http://127.0.0.1:1880/](http://127.0.0.1:1880/)  
10 Dec 12:06:21 - [info] Starting flows

deploy was executed after node-red-start

Thank you Gentlemen for your help and assistance. I have successfully deployed and receive CPU Temp of 34C

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\
**Post date:** [8 February 2022 10:51 UTC](https://discourse.nodered.org/t/display-cpu-temp-from-pi4-on-localhost-1880/54989/7 "2022-02-08T10:51:53Z")

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