CurrantPi\HardwareData::prepareData PHP Method

    private function prepareData()
    {
        /*
         * Using the onboard temperature sensor and the command 'uptime'
         * to pull in information about how hot the Raspberry Pi is and
         * how long it's been switched on for.
         */
        $output = shell_exec('cat /sys/class/thermal/thermal_zone0/temp');
        $temp = round($output / 1000, 1);
        $output = shell_exec('echo "$(</proc/uptime awk \'{print $1}\')"');
        $time_alive = StringHelpers::secondsToTime(intval($output));
        // data object
        $data = new \stdClass();
        $data->temperature = $temp;
        $data->uptime = $time_alive;
        return $data;
    }