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  • Definitely writing convert in Inline C would help - but Inline C doesn't work on ESP8266/ESP32 so it's not a great help here :) I believe scan actually already spends 90% of its time inside native code with shiftOut though.

    Thanks for posting up the code @JumJum - that's frustrating as it's almost there... If it were 20ms it would be reasonably workable :(


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