Controlling the uDMX from a Webserver

Dec 12, 2006

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Using the uDMX commandline interface and PHP it is fairly easy to build a system to control your lights from a ordinary web browser. In this post I show you how to put a slider on a web page that controls the first channel of your DMX light dimmer. This is not a very useful application, but throw in some more Ajax and a database of your choice, et voilà: A web based lighting desk…

Ingredients

web server (close to your light dimmers) running Apache and PHP with a free USB port
libusb installed
uDMX USB-DMX interface
script.aculo.us and prototype (or any other ajax library of your choice)

1. Compile the command line interface

Compile the uDMX command line tool for your operating system


cd UDMX_SOURCE/commandline/
make

Move the command line tool to a directory thats accessible by PHP (for example into your web directory, something like /var/www/ on LINUX or /Library/WebServer/Documents/ on MacOSX) and make sure it is executable


mv uDMX /var/www/uDMX
sudo chmod a+x /var/www/uDMX

2. The php script

Next we’ll write a php script that takes some arguments and calls the udmx command line tool

file udmx.php:

3. The HTML file

include the scriptaculous and protpotype libraries in the header of your html and put this slider on your page:

Comments

2 responses to “Controlling the uDMX from a Webserver”

[ a n y m a ] – uDMX 1.2 released

1 Apr 2007

[…] the uDMX from MIDI uDMX 1.2 released !! Buy a fully assembled uDMX Stay informed: Subscribe to the uDMX mailing list Article: Control uDMXfrom a web browser […]

Reply
hoewe

11 Sep 2007

…heyaa there,
found you on the way seeking around to control my LEDs by PC *overtheweb*. great work, swiss made as well!! ;-) will have an eye on you…!

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