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/diy/ - Do It Yourself

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>> No.1170331 [View]
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1170331

I want to create a PCB with an individually addressable RGB LED matrix, 64 LEDs in total.

Unfortunately I can't use those handy LEDs with controller ICs built in, and I must use regular old RGB LEDs (picrelated).
What are my options of controlling them?

I know of 2 options:
>chain 3 MAX7221 controllers, one for each channel
pros:
>simple as fuck
>3 resistors. count 'em, three!
cons:
>no "true" individual addressing: can only set one color for all LEDs (through brightness of channels) and set individual LEDs to be turned on or off, since MAX7221 was meant to be a used in a digital display
>not a lot of colors, since digital brightness controls of MAX7221 only have 16 steps

>put WS2801 next to each led.
pros:
>full functionality
cons:
>so much fuss with soldering and programming
>60 fucking SMD chips holy balls

I am electronics-retarded, so I most likely got something wrong and there must be other options.
Any suggestions?

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