I'm building an ambilight clone. I got LED strips from deal extreme and I'm controlling them with pwm and ULN2003 ic. The display data is read from serial port. The data is written into serial by a software called BobLight http://blogger.xs4all.nl/loosen/articles/408236.aspx I also have tested this with a MoMoLight filter into BS Player http://divxstation.com/article.asp?aId=151&page=2
I tested the system with Arduino Duemilanove, everything works nicely. Duemilanove is recognized as COM4 and I can read the data nicely from the serial.
Duemilanove has only 6 pwms, and that is not enough for my application. So I needed to change to Mega 2560. Now the problems start, Mega is recognized to COM5 and even if I change this to the software sending the data, it doesn't come alive.
Any ideas where to start to dig out the problem? What's the difference between Duemilanove and Mega?
Kind Regards Orbitrek