CoreElec HW monitor


#1

Hi,
I’m running CoreElec on KIII Pro and I would like to keep an eye on hardware temperatures through my iPhone. Is there any addon and app which would display CoreElec/Kodi system and hardware information in iOS app. Ideally with widget too. Basically something like iStat view is on mac. Thanks for any suggestions.


#2

Install ssh client (e.g. putty), connect to box via ssh and submit command: watch cputemp.


#3

That is working great. Thank you
But it would be even better if there was a widget for this or even app which would connect automatically and maybe showed a bit more info about HW


#4

I didn’t try it myself, so I don’t know, if this even works for non-router devices, or what information exactly is being displayed.
But maybe you could install “NetData System Monitor” using Entware:
https://hqt.ro/netdata-system-monitor/


#5

I just tried it and works.


#6

That’s great! :slight_smile:


#7

That looks sleek as hell. I love it, going to install it on my dev box :slight_smile:


#8

2 question, how exactly did you install it to CoreElec?
And is there CPU temperature somewhere too?


#9

Take a look at this thread on how to install Entware on CE:

The instructions for installing the system monitor with Entware can be found on the website I posted earlier.
According to a Google search it is possible to display sensor data/temperatures, too.


#10

It seems temperature reading isn’t supported. There is a solution for the RPI and sensors is included with the virtual.system-tools addon, but sensors outputs this:

No sensors found!
Make sure you loaded all the kernel drivers you need.
Try sensors-detect to find out which these are.

Sensors-detect isn’t included with the addon and this is the sensors help:

Usage: sensors [OPTION]… [CHIP]…
-c, --config-file Specify a config file
-h, --help Display this help text
-s, --set Execute `set’ statements (root only)
-f, --fahrenheit Show temperatures in degrees fahrenheit
-A, --no-adapter Do not show adapter for each chip
–bus-list Generate bus statements for sensors.conf
-u Raw output
-j Json output
-v, --version Display the program version

Use -' after-c’ to read the config file from stdin.
If no chips are specified, all chip info will be printed.
Example chip names:
lm78-i2c-0-2d -i2c-0-2d
lm78-i2c-0-
-i2c-0-
lm78-i2c--2d -i2c--2d
lm78-i2c-
-* -i2c--*
lm78-isa-0290 -isa-0290
lm78-isa-
-isa-
lm78-*

Any chip name we can try for Amlogic?


#11

Could you try “aml_thermal-virtual-0” as the chip name, please?

Temperature is also not displayed in millidegrees, which is the typical format lm-sensors is expecting, but in degrees instead.
Therefore you should add the following config to your sensors3.conf:

chip "*-virtual-0"
    label temp1 "CPU"
    compute temp1 @*1000 , @/1000

#12

Specified sensor(s) not found!

Anyway, I don’t think sensors is needed at all. Check this thread


#13

This bash module method looks promising.
Unfortunately I’m not at home currently and can’t test anything.


#14
CoreELEC:/ # find . -name "sensors3.conf"
CoreELEC:/ #

How can I add those lines into non-existing file?


#15

You don’t need this.
Apparently there is no sensors module in the kernel, which we could use.

I also had no luck using the bash method. The “sensors” entry is just not showing up in the navigation.
Although there is an /opt/var/log/netdata/ path, no logs are available.

But…holy graph madness…there is a sh*tload of information included in this thing.


#16

The one we need is missing: Temperature


#17

Edit /opt/etc/netdata/netdata.conf:

debug log = /opt/var/log/netdata/debug.log
error log = /opt/var/log/netdata/error.log
access log = /opt/var/log/netdata/access.log


#18

So, I managed to install Netdata and it’s working fine. But the temperature is really the main function I need, to keep an eye on the KIII PRO cpu temp. I also found unofficial app for iOS, called NetData, but when I add in the server address, it says Invalid server - weird.
Anyway, lets focus on temp display first.


#19

BTW, NetData is amazing. I really like the design and the amount of data. It shows both of the external hard drives connected to USBs. Really cool


#20

The bash method using charts.d modules won’t work, because it apparently needs a full blown version of bash instead of the busybox we are using in CE.

What I found out so far:
The charts.d module needs to be enabled to be used for sensors.
This can be done in /opt/etc/netdata/netdata.conf

charts.d = yes

According to the article previously posted by Uukrul, sensors should be disabled in /opt/etc/netdata/python.d.conf to prevent using the lm-sensors method:

sensors = no

…and enabled in /opt/etc/netdata/charts.d.conf, to use the bash method instead:

sensors = force

But after a restart of the netdata service, it’s still not included in the navigation.

If you are executing the charts.d.plugin script manually with debug option enabled, you are getting an error message:

# /opt/lib/netdata/plugins.d/charts.d.plugin debug 1
bash: 0: unknown operand
/opt/lib/netdata/plugins.d/charts.d.plugin: line 97: syntax error: bad substitution

This is a problem in the function “require_cmd()”, which only checks for available bash commands.
Even if you comment out this function, the corresponding command checks and another line a bit below, which parses the output of this function (because this isn’t required for the execution of the script itself), it fails with another error in a charts.d plugin file.

I think, we would really need to rewrite the whole charts.d.plugin script as well as all modules started with it. This is a bit too much work for a simple temperature graph.
It would be easier for sure to write a python.d plugin, which checks /sys/devices/virtual/thermal/thermal_zone0/temp, but that’s out of my comfort zone.