Python Temper-poll and temperature to website with PHP
I ordered from DX.com TEMPer USB thermometer sensor for PC. Temper-poll you can find from website https://github.com/padelt/temper-python and following their instructions you can install temper-poll and make calibrations.
You can call directly thermometer sensor from command line with:
temper-poll
This will return you information about that device has been found and temperature in Celsius and Fahrenheit.
To get this information to website I made very simple PHP solution. First helper function take temperature to parts:
<?php
function tempParts($temp, $index) {
$parts = explode('.', number_format($temp, 1));
return $parts[$index];
}
?>
Then actual we need to read temperature by executing Python temper-poll command using PHP (This has been updated 9.10.2015 to compensate error if usb-stick won't return temperature).
<html><body><p>
<?php
$command = "temper-poll -cq"; //We need only Celsius temperature
// initialize variables
$output = array();
$return_var = -1; // get return if our command is success or not.
$counter = 0;
while ($return_var != 0 && $counter<10) {
// continue until we get temperature
exec($command, $output, $return_var);
if ($return_var != 0) {
echo "<br>connection to usb stick failed.. please wait, trying again<br>";
$counter++; // ten tries only.
sleep (5); // give usb-stick 5 seconds to "wakeup"
}
}
if ($return_var != 0) {
echo "Measuring failed..";
exit(0);
}else {
foreach($output as $key => $value)
{
$temp = $value;
}
}
print tempParts($temp,0)."<span>.".tempParts($temp,1);
echo "</span>"; echo "strong°/strong";
?>
</p></body></html>
Simple as that, this example requires that you'll have thermometer sensor plugged to your server.
