Php Serial Port Communication Linux Games Download
Linux Serial Port Programming
Php Serial Port Communication
Linux Serial Port Software

Active2 years, 4 months ago

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.

Running that on my own Linux box (which only has 1 Serial port) produces a single ttyS0 output line. Try it on your own, you will see what I mean. Share| improve this answer.

We will use this extension for serial port communication. On unix system install the extension using PECL, open a terminal and type: sudo pecl install dio-0.0.7. In order to test sending and receiving serial data in PHP, the other end of the serial port. Install Ubuntu 14.04/16.04 Debian 7/8/9 with USB stick and serial console. Adapter in your PC does not have and serial port. Communication parameters are. This class can be used to communicate with a serial port under Linux or Windows. It takes the path (like '/dev/ttyS0' for linux or 'COM1' for windows) of serial device and checks whether it is valid before opening a connection to it.

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

This code goes in to infinite loop.

RegardsN

Nilesh patel

Nilesh patelNilesh patel

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3 Answers

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

Php Serial Port Communication Linux Games Download

Nilesh patel Php Serial Port Communication Linux Games

Nilesh patel

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Ahmed MahmoudAhmed Mahmoud

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Active6 years, 8 months ago

I have installed xampp in fedora 13.I am trying to communicate with microcontroller through serial port using php serial class.My code is example.php

Linux Serial Port Programming

The php script gets executed but gives the following warnings .

Warning: Specified serial port is not valid in /opt/lampp/htdocs/xampp/php_serial.class.php on line 147Warning: Unable to set the baud rate : the device is either not set or opened in /opt/lampp/htdocs/xampp/php_serial.class.php on line 241Warning: Unable to set parity : the device is either not set or opened in /opt/lampp/htdocs/xampp/php_serial.class.php on line 295

... I have used the command : chmod 0777 /dev/ttyUSB0 to give permissions . I have also tried to add the apache user 'prudhvi' to the dialout group by using command : $ usermod -a -G dialout prudhvi

But it doesnt work . When I send a command directly from the terminal using the command : echo 1 > /dev/ttyUSB0 it works and '1' is transmitted to the serial port . But using php I get the above warnings .

I have used the '$whoami' to check name of user and added that user 'prudhvi' to the dialout group . It still doesnt work . Please help me guys.

prudhvi09

prudhvi09prudhvi09

4 Answers

I did this once with Debian to control an Arduino board with a PHP script and initially ran into the same problem.

In Debian, you need to add the Apache user to the dialout group in order to allow it to make serial connection requests. I would assume the same is true for Fedora.

In Debian the command is:

However I believe Fedora names the Apache user as apache instead. I don't have a Fedora machine to test on, but I would assume the command you need to run is:

You will then need to restart your xampp server.

See the following for reference:

Neal

nealio82nealio82

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Could you post the lines near / related to '/opt/lampp/htdocs/xampp/php_serial.class.php on line 147'?

I suspect that you are trying to set the device incorrectly (as Marc indicated). Either that or the port is already in use from other testing you are conducting at the same time. I'm not sure if the script you are running provides errors specific to ports you are trying to attach to already being in use.

PilipoPilipo

Php Serial Port Communication

First test a hello world type php script to testyour basic installation.

Then verify the web server / php engine is running as a user which is in a group allowed to access the applicable /dev/ttyWHATEVER device file corresponding to the serial port. It would be surprising if that were true by default - you'll probably have to add it to the 'dialout' or similar group.

Add some fault checking / reporting to your code.

Chris StrattonChris Stratton

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Credit goes to Marc B's comment for causing me to look this up, and he's dead on: http://www.phpclasses.org/browse/file/17926.html

I believe that calling $serial->deviceSet('/dev/ttyUSB0'); will fix it, but you may have to modify the source of php_serial.class.php to work on /dev/ttyUSB instead of /dev/ttyS.

Linux Serial Port Software

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