Heres my little Christmas project, and it's something that you can see running from your browser.
I have a PC running a web server and executing PHP when a form is submitted, then using the php_serial class it sends the data onto the Arduino which then displays it on a 2x20 LCD.
To have a look at the functioning system goto http://www.beigematchbox.co.uk/arduino/, there is also a link containing the code used and there is a link to the php_serial class I'm using.
From here the world is the limit, add buttons to a web page that activate various devices connected to the Arduino for instance, it does of course go the other way, so you have have sensor information displayed on the web page...
Next step is to get an ethernet shield and go without computer!!
I'll try to leave the system running for a few days ![]()