Here's an interesting project
from a reader:
It is basically a 3D arrangement of LEDs driven from a computer.
The model above contains 100's of LEDs but the reader is
happy with a simpler versions shown below containing 125 LEDs:
The project requires each LED
to be individually turned on and off.
It's obviously the job for a microcontroller but the requirement
of 125 outputs is enormous.
The second point to consider is the programming.
Each LED will need to be given a value and you need to be able
to add all the values to produce a pattern for each
frame of a sequence.
Next you need to have some form of input to activate each LED.
You may need 125 push-switches in a 3D arrangement with a toggle
on-off action to turn on the LEDs for each frame of the sequence. This will
involve another 125 "lines" or inputs.
You can consider multiplexing the whole display, but this
will decrease the brightness slightly.
It's an interesting project but very complex.
I don't have any simple answers.
Anyone with suggestions will be welcome.
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