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Which method use to drive String of LED of type WS2811?

Question asked by arnogir on Sep 18, 2018
Latest reply on Sep 19, 2018 by arnogir

Hello,

 

I'm investigating about how drive a string of this type of LED:

https://cdn-shop.adafruit.com/datasheets/WS2812.pdf

 

These LED are driven is "Serial" RGB data.

But this could up to 800Khz.

 

Is any body has already drive this LED with a Kinetis (For me a K60 under MQX 4.2)?

Which method could be beter?

(Gpio, SPI, other??)

With/Without DMA?

 

The aim is to have CPU charge lower has possible!..

 

Thank

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