You don't have to refresh them continously, it's enough to update the string of LEDs when you need/want something to change. Just realise that in order to change one of the LEDs in the string you will have to send data for the whole string.
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Re: WS2812b and similar LEDs - do we need all time running tight loop for control?
You don't have to refresh them continously, it's enough to update the string of LEDs when you need/want something to change. Just realise that in order to change one of the LEDs in the string you will have to send data for the whole string.
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