用php在windows上从串口读取数据-php问题

Read data form serial port on windows with php(用php在windows上从串口读取数据)

本文介绍了用php在windows上从串口读取数据的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我想使用 USB 串口读取 php 中的数据.我正在使用 Rs232 转 USB 电缆.我有 sartorius 平衡机.现在我想使用 USB com 端口读取机器数据.并存储在数据库中.

I want to read data in php using USB serial. I am Using Rs232 to USB cable. I have sartorius balance machine. now i want to read machine data using USB com port. and store in database.

我正在尝试使用 https://github.com/Xowap/PHP-Serial我不知道如何检测机器正在使用哪个 com 端口.

I am trying to use https://github.com/Xowap/PHP-Serial I don't know how to detect which com port are using by machine.

<?php
include "php_serial.class.php";
$serial = new phpSerial;
$serial->deviceSet("COM1");
$serial->deviceOpen();
$serial->sendMessage("Hello !");
$read = $serial->readPort();
$serial->deviceClose();
$serial->confBaudRate(2400);

echo "<pre>".var_export($serial, true)."</pre>"; 
?>

这段代码进入无限循环.

This code goes in to infinite loop.

问候否

推荐答案

我正在使用 Node js 读取串口并将输出发送到 PHP 服务器.

I am using Node js To read serial port and send output to PHP server.

var fs = require('fs')
, http = require('http')
, socketio = require('socket.io')
, com = require("serialport");

var WebSocketServer = require('websocket').server;

// create the server
var wsServer = new WebSocketServer({
httpServer: http.createServer().listen(1337)
});

var serialPort = new com.SerialPort("COM4", {
baudrate: 1200,
dataBits: 7,
parity: 'none',
stopBits: 1,
parser: com.parsers.readline('
')
});

wsServer.on('request', function(request) {

var connection = request.accept(null, request.origin);
serialPort.on('data', function(data) {
        //console.log('Received Message: ' + data);
        fs.writeFile("data.txt", data, function(err) {
            if(err) {
                return console.log(err);
            }
        });
        connection.sendUTF(data);
});
});

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