Pages: [1]   Go Down
Author Topic: 4x4 rgb led matrix  (Read 1224 times)
0 Members and 1 Guest are viewing this topic.
0
Offline Offline
Newbie
*
Karma: 0
Posts: 2
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

I am trying to make use of sparkfun electronics Button Pad 4x4 - Breakout PCB (http://www.sparkfun.com/commerce/product_info.php?products_id=8033) to make a 4x4 rgb matrix (i eventualy would like to make the switches work). I keep coming across harware trouble. Searching through the forums it seems possible to drive 16 LEDs without any extra chips. I've tried different configurations with transistors but keep coming up empty. Could somebody give me a better idea as to the schematics of driving this board?
Logged

0
Offline Offline
Newbie
*
Karma: 0
Posts: 2
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

thanks, In the rgb matrix there is 12 rows anodes and 4 rows of cathodes so i would need 16 transistors but I only have 14 outputs. Will I have to add an led driver?
Logged

Pages: [1]   Go Up
Jump to: