The idea is to create web interface for raspberry pi. I want to reload only certain elements of the http page and have possibility to execute linux commands. For example if I want to check CPU temperature I use vcgencmd measure_temp. I put this into php script and print complete javascript.
Below is my code:
<?php
$result = exec ('sudo vcgencmd measure_temp');
$tempOnly = substr($result,5);
?>
function rpiTemp()
{
var example = <?php echo '"' . $tempOnly . '"'; ?>;
alert(example);
}
In <head> block I include script with following:
<script type="text/javascript" src="http://raspberrypi/check_cpu_temp.php"></script>
And call it in <body> section with a button:
<input type="submit" value="Check CPU Temperature" onclick="rpiTemp()"/>
Showing posts with label programming. Show all posts
Showing posts with label programming. Show all posts
Sunday, 17 June 2018
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