48{
49 static uint16_t sPseudotime = 0;
50 static uint16_t sLastMillis = 0;
51 static uint16_t sHue16 = 0;
52
54 uint8_t brightdepth =
beatsin88( 341, 96, 224);
55 uint16_t brightnessthetainc16 =
beatsin88( 203, (25 * 256), (40 * 256));
56 uint8_t msmultiplier =
beatsin88(147, 23, 60);
57
58 uint16_t hue16 = sHue16;
59 uint16_t hueinc16 =
beatsin88(113, 1, 3000);
60
61 uint16_t ms = millis();
62 uint16_t deltams = ms - sLastMillis ;
63 sLastMillis = ms;
64 sPseudotime += deltams * msmultiplier;
66 uint16_t brightnesstheta16 = sPseudotime;
67
68 for( uint16_t i = 0 ; i <
NUM_LEDS; i++) {
69 hue16 += hueinc16;
70 uint8_t hue8 = hue16 / 256;
71
72 brightnesstheta16 += brightnessthetainc16;
73 uint16_t b16 =
sin16( brightnesstheta16 ) + 32768;
74
75 uint16_t bri16 = (uint32_t)((uint32_t)b16 * (uint32_t)b16) / 65536;
76 uint8_t bri8 = (uint32_t)(((uint32_t)bri16) * brightdepth) / 65536;
77 bri8 += (255 - brightdepth);
78
79 CRGB newcolor =
CHSV( hue8, sat8, bri8);
80
81 uint16_t pixelnumber = i;
82 pixelnumber = (
NUM_LEDS-1) - pixelnumber;
83
85 }
86}
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.
CRGB & nblend(CRGB &existing, const CRGB &overlay, fract8 amountOfOverlay)
Destructively modifies one color, blending in a given fraction of an overlay color.
#define sin16
Platform-independent alias of the fast sin implementation.
Representation of an HSV pixel (hue, saturation, value (aka brightness)).
Representation of an RGB pixel (Red, Green, Blue)