[dorkbotpdx-blabber] How many LED's can I run off of an atMega644p?

[Daniel Johnson]

I'm interested in making a POV type device, and I was looking at the
many pins of my atMega644p, and thinking that it would simplify the
design a whole lot if I could just direct drive the pins.  After
looking at the manual it looks like the max current draw for the whole
device is 200 milliamps, but dividing that by all the pins drops it to
around 5mA a pin which by my understanding would be a very dim LED.
What would be a simple way of keeping the premise of turning on/off 8
LED's at once by writing a byte to a register, but increasing the max
current draw?

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