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Author Topic: mEGA 2560 R3 & 3X3 CUBE  (Read 339 times)
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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
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Seattle, WA USA
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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.
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20ma typical according to the item description on ebay
item number 120803062151
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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
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