cpu temperature with sensors

[aleppax]

I've added the monitoring of the cpu temp using sensors and a simple php function. Here is the code (sensors must be installed and configured; the content of the function is a first attempt tested only on my box):

zm_funcs.php (add this function:)

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function getTemperature()
{
        $te = shell_exec( 'sensors' );
        $tem = explode("temp2:",$te);
	$tempe = explode("C",$tem[1]);
	return( $tempe[0] );
}

zm_html_view_console.php (line 226 becomes:)

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<td class="smallhead" align="right"><?= $zmSlangLoad ?>: <?= getLoad() ?> / <?= $zmSlangDisk ?>: <?= getDiskPercent() ?>% / <?= getTemperature() ?>&deg;C</td>

the function can be easily adapted to monitor also the motherboard temperature.

[Lee Sharp]

That could be handy. I have had many systems die from a sudden change in environmental heat. It would be nice to know.

[qriff]

Great, other option would be to combine/embed/run Munin graphs with Zoneminder.

http://munin.projects.linpro.no

Live demo: http://munin.ping.uio.no/

[robi]

I've added the monitoring of the cpu temp using sensors and a simple php function. Here is the code (sensors must be installed and configured; the content of the function is a first attempt tested only on my box):

Many thanks, it works great!

[robi]

Just to clarify for the people, before someone says it's not working.

sensors outputs something like this, depending on the motherboard and settings:

it8712-isa-0290 Adapter: ISA adapter VCore 1: +1.52 V (min = +1.42 V, max = +1.57 V) VCore 2: +2.54 V (min = +2.40 V, max = +2.61 V) +3.3V: +3.23 V (min = +3.14 V, max = +3.47 V) +5V: +4.11 V (min = +4.76 V, max = +5.24 V) ALARM +12V: +12.29 V (min = +11.39 V, max = +12.61 V) -12V: -16.19 V (min = -12.63 V, max = -11.41 V) ALARM -5V: -8.17 V (min = -5.26 V, max = -4.77 V) ALARM Stdby: +3.95 V (min = +4.76 V, max = +5.24 V) ALARM VBat: +4.08 V M/B Temp1: +25 C (low = +15 C, high = +40 C) sensor = thermistor M/B Temp2: +26 C (low = +15 C, high = +45 C) sensor = thermistor CPU Temp: +34 C (low = +15 C, high = +65 C) sensor = diode

The line in bold is what we need, so for this example above, the code must be changed like this:

Code: Select all

function getTemperature() 
{ 
        $te = shell_exec( 'sensors' ); 
        $tem = explode("CPU Temp:",$te); 
   $tempe = explode("C",$tem[1]); 
   return( $tempe[0] ); 
}

So one has to find the words before the reported cpu temperature and replace them in the code above. lm_sensors configuration file offers a lot of nice things also.

[linuxsense]

Great idea...thanks for the code. I made a few small changes and have mine set to display both of my cpu cores. Sweet.

For those of you looking to add the temp display with ZM 1.23 look at or around line 269 to insert the temp display code in zm_html_view_console.php...at least as of RC3.

[robi]

to add the temp display with ZM 1.23 look at or around line 269 to insert the temp display code in zm_html_view_console.php

Yep, that's right there to be inserted. Works like a charm.

Actually I hate the + sign in front of the temp (it's obvoius that this is a positive temperature, dohh), so to remove

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function getTemperature()
{
        $te = shell_exec( 'sensors' );
        $tem = explode("CPU Temp:",$te);
   $tempe = explode("C",$tem[1]);
   return(str_replace("+","", $tempe[0]));
}

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 / Cpu:<?= getTemperature() ?>&deg;C

[robi]

If you're using 1.24.x, then the mods are the following:

in the file
/var/www/zm/includes/functions.php
add this function:

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function getTemperature()
{
        $te = shell_exec( 'sensors' );
        $tem = explode("CPU:",$te);
   $tempe = explode("C",$tem[1]);
   return(str_replace(" ","", str_replace("+","", $tempe[0])));
}

(make sure to adjust code according to what your sensors outputs, see above)


in the file
/var/www/zm/skins/classic/views/console.php
search for:

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      <h3 id="systemStats"><?= $SLANG['Load'] ?>: <?= getLoad() ?> / <?= $SLANG['Disk'] ?>: <?= getDiskPercent() ?>%</h3>

and replace with:

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      <h3 id="systemStats"><?= $SLANG['Load'] ?>: <?= getLoad() ?> / <?= $SLANG['Disk'] ?>: <?= getDiskPercent() ?>% / Cpu: <?= getTemperature() ?>&deg;C</h3>