large rgb led matrix driver

Forum 2005-2010 (read only) Hardware Interfacing
1

hi,
can any one recommend an arduino compatible rgb led matrix driver or shield or circuit? I'm looking to control up to 180 bright rgb leds and would rather not build the whle circuit from scratch

thanks!

2

I hope this can be useful. I have done a replica of this project:
http://dclausen.net/projects/ledcyl/
wich use the "TLC5940NT 16 channel PWM constant-current LED driver" . They can be linked together with serial interface.

3

thanks Federico, this is super useful. I've used the tlc5940 for regular leds, but didnt think of it for rgbs.

4

Really you use the same chips but you have one for each channel, red, green, and blue, then link more chips for each channel to get more overall leds.

There is a maxim chip really good for driving leds at constant brightness with reduced parts...

they even do part samples!

That said -