FastLED - Increase BPM Speed

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9

Maybe use a lookup table:

const unsigned int LUTsize = 256; // Look Up Table size: has to be power of 2 so that the modulo LUTsize
// can be done by picking bits from the phase avoiding arithmetic
uint8_t sintable[LUTsize] PROGMEM = { // already biased with +127
  127,130,133,136,139,143,146,149,152,155,158,161,164,167,170,173,
  176,179,182,184,187,190,193,195,198,200,203,205,208,210,213,215,
  217,219,221,224,226,228,229,231,233,235,236,238,239,241,242,244,
  245,246,247,248,249,250,251,251,252,253,253,254,254,254,254,254,
  255,254,254,254,254,254,253,253,252,251,251,250,249,248,247,246,
  245,244,242,241,239,238,236,235,233,231,229,228,226,224,221,219,
  217,215,213,210,208,205,203,200,198,195,193,190,187,184,182,179,
  176,173,170,167,164,161,158,155,152,149,146,143,139,136,133,130,
  127,124,121,118,115,111,108,105,102,99,96,93,90,87,84,81,
  78,75,72,70,67,64,61,59,56,54,51,49,46,44,41,39,
  37,35,33,30,28,26,25,23,21,19,18,16,15,13,12,10,
  9,8,7,6,5,4,3,3,2,1,1,0,0,0,0,0,
  0,0,0,0,0,0,1,1,2,3,3,4,5,6,7,8,
  9,10,12,13,15,16,18,19,21,23,25,26,28,30,33,35,
  37,39,41,44,46,49,51,54,56,59,61,64,67,70,72,75,
78,81,84,87,90,93,96,99,102,105,108,111,115,118,121,124};
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