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[on:]

I am very, very new to the whole Arduino world, but i am excited to begin tinkering. I have a newbie question, will the Mega 2560 R3 drive a 3x3 LED cube directly. or do i need to use something in between? Sorry for the newbie question.

Lee

[Reply #1 on:]

A 3 x 3 arrangement of LEDs is not a cube. A 3 x 3 x 3 arrangement would be.

Whether the Mega would "drive" it directly depends on the LEDs (and current limiting resistors) chosen.

[Reply #2 on:]

20ma typical according to the item description on ebay
item number 120803062151

[Reply #3 on:]

To directly interface a 3x3x3 led cube requires 12 output pins so even a Uno board has enough pins to do that task. You will require 3 output switching transistors to handle the maximum of 180ma that each 'level' of the cube would draw if all leds are commanded on for that level.

Lefty