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"fe fe 00 e0 03 fd fe fe e0 00 03 66 10 20 14 00 fd" (This is a CI-V dialogue for the Perseus SDR communications receiver) Download comxs.zip Im working with an application which connects to Huawei 3G Modem using COM ports in php. $x=shell_exec("comxs.exe $comport $readbytes $command") Windows Communicating serial port on windows with php. Will write the sequence (fe fe 00 e0 03 fd) to COM11 and then listen until 10 bytes are received. That's why I've written and compiled a univeral tool for serial port access that can be called by PHP via the shell extension.Ĭomxs.exe (string port, no of bytes to read as hex, command as hex values)Įxample from shell: comxs.exe COM11 10 FE FE 00 E0 03 FD This is not the case on a Linux system, on which there is no problem to reading from COM ports with the common.
Php serial port windows code#
The problem with PHP and serial port communication is with the underlying Microsoft code that is the real interface with the psuedo-serial port via USB that is used today. All of which were also first developed on Linux, and then ported to Windows. $x=shell_exec('copy test.bin \\\\.\\COM11') PHP can not read from serial ports under Windows. PHP plays well with MySQL and Apache, all of which are free. $x=shell_exec('mode COM11 PARITY=N data=8 stop=1 xon=off') 8 bits of data are needed for binary safe files!
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Be aware that you need to set data & parity first. Unfortunately this is limited to ASCII text characters.įirst you create the binary file, then transfer the file to COM11. Such a device can be: a weight indicator, a modem, a scanner, or any other device that is equiped with a serial port.
Php serial port windows software#
Shell_exec and set (DOS command) $x=shell_exec('set /p x="hello" $lt nul $gt>\\\\.\\COM11') Using ActiveXperts Serial Port Component with PHP ActiveXperts Serial Port Component is a software development kit (SDK) that enables the user to communicate to a device over a serial interface. The trial version has several seconds of delay or additional output "TRIAL". The required extension dll is dependent on the PHP version (only tested up to 5.3.0). Installation is a bit difficult though: You must modify the nf of the Apache server and switch to PHP-CGI mode. Is a commercial solution working that also copes with COM10+. The php serial extension by thebyteworks Download here Unfortunately COM10 and above do not work with Windows. With fopen/fread/fgets/fputs you can treat the serial port as a fileĮxec("mode $device BAUD=115200 PARITY=n DATA=8 STOP=1 xon=off octs=off rts=on")
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