[riot-notifications] [RIOT-OS/RIOT] drivers/neopixel: New driver for smart RGB LEDs (#12020)

Marian Buschsieweke notifications at github.com
Mon Sep 9 22:07:42 CEST 2019


@benpicco: Are you sure? FastLED also supports SPI based RGB controllers, maybe it was one of them? The NeoPixels have a custom single wire protocol, so there is no hardware acceleration for that.

I think however that I read how someone used the I2S hardware of the ESP with DMA for same magic bitbanging stuff. But that would be a driver specific for the ESPs, while software bitbanging can be used on more devices. But I see no reason to not provide I2S bases driver in addition, if someone want to give it a try.

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