Php Serial Port Communication Linux Tutorial

Dec 3, 2018 - Simplified serial port programming in C++ under POSIX operating systems. Access serial ports from scripting languages such as PHP, Python, Perl, Ruby. To install LibSerial the current release package on many Linux.

It is important you have a webserver with PHP 5.3 or higher. My recommendation is to use LAMP for linux, WAMP for windows and XAMP for osx (though I don't know if it works on osx). To install LAMP on debian (Ubuntu, turnkey, RPI, etc.) you want to execute the following command: sudo apt-get install lamp-server^ Don't forget the ^ here! On windows you just have to go to Check if the webserver is working by going to 'localhost'. If not: You might have skype installed, check its documentation on how to disable it on port 80.

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Having a problem logging in? Please visit to clear all LQ-related cookies. Introduction to Linux - A Hands on Guide This guide was created as an overview of the Linux Operating System, geared toward new users as an exploration tour and getting started guide, with exercises at the end of each chapter. For more advanced trainees it can be a desktop reference, and a collection of the base knowledge needed to proceed with system and network administration. This book contains many real life examples derived from the author's experience as a Linux system and network administrator, trainer and consultant.

They hope these examples will help you to get a better understanding of the Linux system and that you feel encouraged to try out things on your own. To receive this Complete Guide absolutely free. Hello all, I had a web server running from a Windows 7 computer and recently moved everything to an Ubuntu server.

All is set up and running smoothly. I do have one page that actually interfaces with the serial port. The only thing I do with it is to set the DTR pin to 'true' which applies +12v to the pin. This activates a relay. It is very basic and simple. After moving everything to Linux, this page will no longer work.

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I knew this would happen. I know the page had code in it to call out 'Com1' which would change to 'ttyS0'. It also had 'set_serDTR(True);' in the code. I can't figure out how to get PHP to control the DTR pin on a Linux serial port. Can anyone point me in the right direction?

Thanks, Wayne. Hello all, I had a web server running from a Windows 7 computer and recently moved everything to an Ubuntu server. All is set up and running smoothly. I do have one page that actually interfaces with the serial port. The only thing I do with it is to set the DTR pin to 'true' which applies +12v to the pin. This activates a relay. It is very basic and simple.

After moving everything to Linux, this page will no longer work. I knew this would happen. I know the page had code in it to call out 'Com1' which would change to 'ttyS0'. It also had 'set_serDTR(True);' in the code. I can't figure out how to get PHP to control the DTR pin on a Linux serial port. Can anyone point me in the right direction?

Not without seeing the code, no. However, it's not just ttyS0.it's /dev/ttyS0. Have you tried that?