I'm looking into making an 8x8 LED matrix. My eyes are almost burning from the amount of googling I've been doing. The most common parts that pop up all the time are the 74HC595 and the ULN2803A. The biggest hurdle is dealing with the current drain. Taking a look at this tutorial for the 74HC595 ( ht…

Understanding the components of a LED matrix

system December 24, 2012, 11:20pm 11

At 20ma/pin, it will outlast all of us, by a few multiples.

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