46 static uint16_t sPseudotime = 0;
47 static uint16_t sLastMillis = 0;
48 static uint16_t sHue16 = 0;
51 uint8_t brightdepth =
beatsin88( 341, 96, 224);
52 uint16_t brightnessthetainc16 =
beatsin88( 203, (25 * 256), (40 * 256));
53 uint8_t msmultiplier =
beatsin88(147, 23, 60);
55 uint16_t hue16 = sHue16;
56 uint16_t hueinc16 =
beatsin88(113, 1, 3000);
58 uint16_t ms = millis();
59 uint16_t deltams = ms - sLastMillis ;
61 sPseudotime += deltams * msmultiplier;
63 uint16_t brightnesstheta16 = sPseudotime;
65 for( uint16_t i = 0 ; i <
NUM_LEDS; i++) {
67 uint8_t hue8 = hue16 / 256;
69 brightnesstheta16 += brightnessthetainc16;
70 uint16_t b16 =
sin16( brightnesstheta16 ) + 32768;
72 uint16_t bri16 = (uint32_t)((uint32_t)b16 * (uint32_t)b16) / 65536;
73 uint8_t bri8 = (uint32_t)(((uint32_t)bri16) * brightdepth) / 65536;
74 bri8 += (255 - brightdepth);
76 CRGB newcolor =
CHSV( hue8, sat8, bri8);
78 uint16_t pixelnumber = i;
79 pixelnumber = (
NUM_LEDS-1) - pixelnumber;
LIB8STATIC uint16_t beatsin88(accum88 beats_per_minute_88, uint16_t lowest=0, uint16_t highest=65535, uint32_t timebase=0, uint16_t phase_offset=0)
Generates a 16-bit sine wave at a given BPM that oscillates within a given range.