Is it possible to use I2C devices with a WS2813 (or WS2812B)?

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Is it possible to use I2C devices with a WS2813 (or WS2812B)?
I’ve heard that fastled deactivates the interrupts for those strips to work, making I2C devices unusable.
Thanks for the help guys!

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I don’t know if it has changed, but when I made a module to interface with the flight controller in my quadcopter I had to disable the part of fastled that disabled interrupts. I wasn’t going to risk a crash if data wasn’t being handled, and the occasional brief led glitch was an easy concession to make.

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If you use an esp32 or esp8266, you can use dma without turning off interrupts. With a teensy 3.1 interrupts are re enabled in between led updates

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If you’re in an environment where handling interrupts is vitally important, then you should really be using something like the APA102 - not Ws2812/13. (Or one of the arm/esp platforms where interrupts are available/usable)

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Thanks all, I’ll go for apa102.

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I tried a RGB i2c sensor and a ws2812 strip with esp8266 board and i had some weird effects…

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Stephan, You need to use the I2S driver on esp8266, it uses dma

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@Marc_MERLIN ​ oh thanks. Well i obvioously missed that one. I’ll try it again.

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@Stefan_stelb_Le_Bret look for ESP8266I2S in https://github.com/marcmerlin/Neopixel-IR which uses https://github.com/JoDaNl/esp8266_ws2812_i2s/

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I have used my lsm9ds1 with sk6812 on a nano and it worked fine.