How can I send data from a web page to a serial port?

Question

I have a web page which includes a basic content. I can chance its format but it is PHP now. I want to send this data to one of the serial ports of my computer (as a visitor of PHP page).

I need a code for transferring this data from internet to one of the serial-ports. It can be C++, javascript, C# or anything else.

I am using Windows (as a visitor of web page). So, I need to send datas to serial port of visitor's computer not server's. Reading is not necessary.

Which program and process is the best option to do this properly? I need example code parts that they work just fine!

Euhm, sounds like you want to write a client for a web backend that retrieves the data from the web and then writes the retrieved data to a serial port, is that right? — , Jan 03 '13 at 21:00
@İnsanlardanBirİnsan Then for the first part, have a look at libcurl, for the second part the C stdlib functions `write()` and `tcsetattr()` will help you out. — , Jan 03 '13 at 21:02
Please do not duplicate your questions http://stackoverflow.com/questions/14148981/how-can-i-send-datas-from-web-page-to-serial-port-of-visitors-computer — hakre, Jan 04 '13 at 00:45

score 4 · Accepted Answer · edited Apr 30 '22 at 14:34

4

There is a library for PHP that supports writing to serial port.

See here.

More:

http://php.net/manual/en/function.fopen.php#20935

See this question for more discussion: How to Read RS232 Serial Port in PHP like this QBasic Program

Update:

To do this on windows see this tutorial: https://web.archive.org/web/20140704050547/http://blog.950buy.com/article/php-use-rs232-serial-communication-to-send-file/

Also this question: Serial comm with PHP on Windows

edited Apr 30 '22 at 14:34

Sumit

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answered Jan 03 '13 at 21:03

pzirkind

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And it supports Windows! I'm surprised. EDIT: (reading is only implemented for Linux or OSX). – David Harris Jan 03 '13 at 21:05
@DavidHarris Don't expect a lot, probably everything is `#define()`d to NOP in the source for the Windows build :P – Jan 03 '13 at 21:07
@pzirkind you are saying that there is no any other program needed. Is PHP available to do this? – İnsanlardan Bir İnsan Jan 03 '13 at 21:08
@İnsanlardanBirİnsan i updated the answer to include windows solution – pzirkind Jan 03 '13 at 21:12
@İnsanlardanBirİnsan it seems that it does have some outside dependencies (see the tutorials for more info) – pzirkind Jan 03 '13 at 21:13
@pzirkind I am using Windows but reading is not necessary. I just want to send data to port com8, com11 or more; not to com1. I am getting "failed to open stream: Permission denied" error. Is this possible with this codes? – İnsanlardan Bir İnsan Jan 03 '13 at 21:26
it should be able to do that – pzirkind Jan 03 '13 at 21:27
Unfortunately, I could not be able to do that with using these tutorials. Question was changed by me, can you look at again? – İnsanlardan Bir İnsan Jan 03 '13 at 23:21

How can I send data from a web page to a serial port?

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