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  • finish @Spocki 's comment

    ...0b0001 and 0b0011 are approximations of the timings for logical 0 and 1...

    relative to the baud rate SPI is set up.

    In @Gordon 's fall back sulution (see post #2): 3200000. Because: 3200000 / 4 = 800kHz as specified to be the max speed (of today) neopixel strings can be driven.

    See data sheets:

    Surprisingly - or not - the timing specs do not match exactly... but most of the time stay within each other's tolerances...:


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