在Windows上读取串行端口

时间:2018-10-24 11:46:54

标签: php windows serial-port

我正在尝试使用PHP读取称重机的值(即重量)。每当我运行以下代码时,它都会显示

Fatal error: Maximum execution time of 300 seconds exceeded

我做错了什么,不知道在哪里吗?

PHP Serial类提供了一个readPort()函数,不会返回(我的假设)。

我的PHP代码:

<html>
<body>
<h1>Works with php</h1>
<p>First Page in PHP</p>

<?php
include 'PhpSerial.php';

    $serial = new phpSerial();
    $serial->deviceSet("COM3");
    $serial->confBaudRate(9600);
    $serial->confParity("none");
    $serial->confCharacterLength(8);
    $serial->confStopBits(1);
    $serial->confFlowControl("none");
    $serial->deviceOpen();
    $serial->sendMessage("s");

    $read = $serial->readPort();
    echo ("Weight--->".$read );
    $serial->deviceClose();
?> 

<p>Sent Data to server </p>

</body>
</html>

1 个答案:

答案 0 :(得分:0)

尝试这样:

require_once 'PhpSerial.php';
$serial=new phpSerial();
$serial->deviceSet('/dev/ttyACM2');
$serial->confBaudRate(9600);
$serial->confParity("none");
$serial->confCharacterLength(8);
$serial->confStopBits(1);
$serial->confFlowControl("none");
$serial->deviceOpen();

if($_GET['status']){
    $serial->sendMessage($_GET['status']);
    $read=$serial->readPort();

    var_dump($read);
    echo $read;
}