how do i drive a dual color led display with an arduino? Answered
i bought a dual color RG 8x8 LED display from sparkfun, and how do i use it in an arduino project with MAX7221 controllers? it is a coomon cathode display with 24 pins. here is the item page: http://www.sparkfun.com/commerce/product_info.php?products_id=682
and here is the datasheet: http://www.sparkfun.com/datasheets/Components/SanYoung-Medium-RG.pdf
i am trying to make a simple 3 color clock (or something like that) with a dual color RG led matrix and an arduino.
can someone tell me how to wire up the matrix to the arduino, because the arduino doesn't have enough pins to run 2 colors of 8x8's
more than 3 colors ( R , G , RG ) would also be nice with the arduino :)