//real candle simulation
//based on this post http://petemills.blogspot.com/2012/02/attiny-candle.html
#include <FastLED.h>
#define DATA_PIN 0 //set your leds datapin change to 32 for m5 atom lite
#define LED_TYPE WS2812B //leds type
#define COLOR_ORDER GRB //color order of leds
#define MAX_POWER_MILLIAMPS 700 //write here your power in milliamps. default i set 800 mA for safet
#define NUM_LEDS 1
byte brigtness = 255;
CRGB leds [NUM_LEDS];
const byte candleRaw [] PROGMEM = {
0x10, 0x00, 0x00, 0x00, 0x77, 0x7B, 0x7D, 0x7B, 0x78, 0xBA, 0x95, 0x53, 0x5E, 0x3E, 0x3E, 0x43, 0x52, 0x35, 0x3E, 0x75, 0x95,
0x10, 0x00, 0x10, 0x00, 0x4B, 0x65, 0x7B, 0x52, 0x63, 0x58, 0x6B, 0x55, 0x62, 0x77, 0x72, 0x87, 0x85, 0x8C, 0x5D, 0x7A, 0x2E,
0x10, 0x00, 0x20, 0x00, 0x53, 0x5D, 0x50, 0x62, 0x55, 0x6F, 0x67, 0x58, 0x78, 0x4E, 0x55, 0x95, 0x6B, 0x6D, 0x7D, 0x73, 0x73,
0x10, 0x00, 0x30, 0x00, 0x7D, 0x5B, 0x6B, 0x68, 0x6A, 0x6A, 0x60, 0x6B, 0x77, 0x77, 0x98, 0x7A, 0x87, 0x60, 0x5B, 0x6B, 0xC9,
0x10, 0x00, 0x40, 0x00, 0x53, 0x4A, 0x53, 0x68, 0x45, 0x3B, 0x65, 0x67, 0x9C, 0x60, 0x67, 0x53, 0x73, 0x75, 0x63, 0x8A, 0x81,
0x10, 0x00, 0x50, 0x00, 0x7F, 0x83, 0x88, 0x80, 0x63, 0x58, 0x58, 0x6B, 0x7A, 0x78, 0x7B, 0x83, 0x8A, 0x87, 0x8A, 0x85, 0x08,
0x10, 0x00, 0x60, 0x00, 0x83, 0x88, 0x8A, 0x8A, 0x8A, 0x8A, 0x8A, 0x8C, 0x8A, 0x8A, 0x8A, 0x8A, 0x8A, 0x88, 0x83, 0x7F, 0x0B,
0x10, 0x00, 0x70, 0x00, 0x7D, 0x7B, 0x7A, 0x78, 0x77, 0x75, 0x70, 0x70, 0x72, 0x70, 0x70, 0x4D, 0x41, 0x6D, 0x68, 0x60, 0xB5,
0x10, 0x00, 0x80, 0x00, 0x35, 0x35, 0x3D, 0x3B, 0x41, 0x45, 0x52, 0x5E, 0x41, 0x53, 0x5D, 0x60, 0x65, 0x6A, 0x50, 0x48, 0xA0,
0x10, 0x00, 0x90, 0x00, 0x4B, 0x4E, 0x35, 0x35, 0x31, 0x33, 0x33, 0x36, 0x3B, 0x40, 0x50, 0x4E, 0x52, 0x5D, 0x60, 0x53, 0x15,
0x10, 0x00, 0xA0, 0x00, 0x56, 0x4B, 0x35, 0x2D, 0x2E, 0x2E, 0x35, 0x38, 0x38, 0x39, 0x3B, 0x38, 0x31, 0x58, 0x40, 0x60, 0x77,
0x10, 0x00, 0xB0, 0x00, 0x4D, 0x50, 0x5A, 0x5D, 0x43, 0x40, 0x53, 0x58, 0x5A, 0x55, 0x4E, 0x31, 0x31, 0x2B, 0x2E, 0x33, 0xD3,
0x10, 0x00, 0xC0, 0x00, 0x31, 0x36, 0x35, 0x36, 0x38, 0x39, 0x39, 0x38, 0x40, 0x4A, 0x41, 0x3B, 0x50, 0x62, 0x40, 0x36, 0x4E,
0x10, 0x00, 0xD0, 0x00, 0x29, 0x2D, 0x45, 0x5E, 0x5D, 0x52, 0x3E, 0x33, 0x3B, 0x43, 0x35, 0x45, 0x38, 0x35, 0x31, 0x33, 0x3E,
0x10, 0x00, 0xE0, 0x00, 0x36, 0x36, 0x39, 0x36, 0x38, 0x3B, 0x41, 0x36, 0x36, 0x30, 0x39, 0x33, 0x2B, 0x29, 0x33, 0x5A, 0x98,
0x10, 0x00, 0xF0, 0x00, 0x63, 0x56, 0x41, 0x3D, 0x50, 0x52, 0x55, 0x60, 0x65, 0x55, 0x3B, 0x30, 0x2E, 0x30, 0x3B, 0x4E, 0x66,
0x10, 0x01, 0x00, 0x00, 0x36, 0x2E, 0x2B, 0x3B, 0x39, 0x3D, 0x4A, 0x50, 0x3D, 0x45, 0x58, 0x4E, 0x4B, 0x4E, 0x4A, 0x45, 0xC5,
0x10, 0x01, 0x10, 0x00, 0x58, 0x4B, 0x55, 0x5D, 0x5B, 0x56, 0x58, 0x5E, 0x60, 0x77, 0x5E, 0x38, 0x5A, 0x52, 0x46, 0x4B, 0x79,
0x10, 0x01, 0x20, 0x00, 0x50, 0x4A, 0x4A, 0x35, 0x4E, 0x41, 0x2E, 0x36, 0x36, 0x38, 0x52, 0x4B, 0x46, 0x3B, 0x33, 0x40, 0xC4,
0x10, 0x01, 0x30, 0x00, 0x4E, 0x60, 0x5A, 0x50, 0x4D, 0x43, 0x4A, 0x50, 0x4B, 0x48, 0x40, 0x3D, 0x40, 0x46, 0x52, 0x5B, 0xFA,
0x10, 0x01, 0x40, 0x00, 0x62, 0x63, 0x63, 0x5B, 0x52, 0x46, 0x5B, 0x43, 0x55, 0x45, 0x26, 0x35, 0x3B, 0x5B, 0x43, 0x4D, 0xDB,
0x10, 0x01, 0x50, 0x00, 0x40, 0x56, 0x58, 0x5A, 0x5D, 0x50, 0x46, 0x45, 0x45, 0x41, 0x3B, 0x43, 0x72, 0x87, 0x90, 0x8A, 0x08,
0x10, 0x01, 0x60, 0x00, 0x8F, 0x97, 0x9D, 0x95, 0x73, 0x65, 0x6B, 0x4D, 0x46, 0x45, 0x55, 0x55, 0x41, 0x56, 0x55, 0x55, 0x31,
0x10, 0x01, 0x70, 0x00, 0x56, 0x5A, 0x5A, 0x5B, 0x5E, 0x56, 0x62, 0x55, 0x65, 0x58, 0x5A, 0x62, 0x68, 0x6D, 0x6D, 0x6B, 0x89,
0x10, 0x01, 0x80, 0x00, 0x68, 0x6A, 0x6F, 0x65, 0x6D, 0x31, 0x6F, 0x55, 0x48, 0x50, 0x55, 0x67, 0x5A, 0x41, 0x55, 0x5E, 0xC5,
0x10, 0x01, 0x90, 0x00, 0x60, 0x65, 0x68, 0x68, 0x63, 0x60, 0x6A, 0x60, 0x67, 0x6A, 0x7F, 0x83, 0x8C, 0x87, 0x88, 0x92, 0x3D,
0x10, 0x01, 0xA0, 0x00, 0x8D, 0x8F, 0x88, 0x8C, 0x8C, 0x85, 0x82, 0x6A, 0x4E, 0x35, 0x23, 0x11, 0x19, 0x43, 0x3B, 0x41, 0x93,
0x10, 0x01, 0xB0, 0x00, 0x67, 0x4A, 0x4A, 0x3B, 0x2E, 0x30, 0x45, 0x41, 0x4A, 0x58, 0x48, 0x70, 0x5B, 0x6D, 0x72, 0x62, 0x2F,
0x10, 0x01, 0xC0, 0x00, 0x75, 0x67, 0x56, 0x5A, 0x5E, 0x55, 0x4D, 0x77, 0x53, 0x2D, 0x36, 0x41, 0x5D, 0x55, 0x40, 0x40, 0x03,
0x10, 0x01, 0xD0, 0x00, 0x40, 0x40, 0x40, 0x3E, 0x41, 0x5E, 0x82, 0x92, 0x88, 0x88, 0x90, 0x94, 0x88, 0x85, 0x7B, 0x63, 0x4F,
0x10, 0x01, 0xE0, 0x00, 0x55, 0x53, 0x56, 0x55, 0x50, 0x53, 0x55, 0x03, 0x34, 0x01, 0x3A, 0x7E, 0xFF, 0x01, 0x60, 0x3E, 0x36,
0x10, 0x01, 0xF0, 0x00, 0x3E, 0x28, 0x01, 0x8E, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x16,
0x00, 0x00, 0x00, 0x01, 0xFF
};
const uint8_t sintable[256] PROGMEM = {
0, 0, 0, 0, 1, 1, 1, 2, 2, 3, 4, 5, 6, 6, 8,
9, 10, 11, 12, 14, 15, 17, 18, 20, 22, 23, 25, 27, 29, 31,
33, 35, 38, 40, 42, 45, 47, 49, 52, 54, 57, 60, 62, 65, 68,
71, 73, 76, 79, 82, 85, 88, 91, 94, 97, 100, 103, 106, 109, 113,
116, 119, 122, 125, 128, 131, 135, 138, 141, 144, 147, 150, 153, 156, 159,
162, 165, 168, 171, 174, 177, 180, 183, 186, 189, 191, 194, 197, 199, 202,
204, 207, 209, 212, 214, 216, 218, 221, 223, 225, 227, 229, 231, 232, 234,
236, 238, 239, 241, 242, 243, 245, 246, 247, 248, 249, 250, 251, 252, 252,
253, 253, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255, 254, 254, 253,
253, 252, 252, 251, 250, 249, 248, 247, 246, 245, 243, 242, 241, 239, 238,
236, 234, 232, 231, 229, 227, 225, 223, 221, 218, 216, 214, 212, 209, 207,
204, 202, 199, 197, 194, 191, 189, 186, 183, 180, 177, 174, 171, 168, 165,
162, 159, 156, 153, 150, 147, 144, 141, 138, 135, 131, 128, 125, 122, 119,
116, 113, 109, 106, 103, 100, 97, 94, 91, 88, 85, 82, 79, 76, 73,
71, 68, 65, 62, 60, 57, 54, 52, 49, 47, 45, 42, 40, 38, 35,
33, 31, 29, 27, 25, 23, 22, 20, 18, 17, 15, 14, 12, 11, 10,
9, 8, 6, 6, 5, 4, 3, 2, 2, 1, 1, 1, 0, 0, 0, 0
};
const byte stembergGradient [] PROGMEM = {
0xff, 0x00, 0xff, 0x00, 0x00, 0xff, 0x00, 0x00, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0x00, 0x00, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0x00, 0x00, 0xff, 0x00, 0x00, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0x00, 0xff, 0x00, 0xff, 0x00, 0x00, 0x00, 0x00, 0xff, 0x00, 0x00, 0x00, 0x00, 0xff, 0x00, 0x00, 0x00, 0xff, 0x00, 0x00, 0xff, 0x00, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0x00, 0x00, 0xff, 0x00, 0x00, 0x00, 0xff, 0xff, 0x00, 0xff, 0x00, 0x00, 0xff, 0x00, 0xff, 0x00, 0xff, 0x00, 0xff, 0x00, 0xff, 0x00, 0x00, 0xff, 0x00, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0x00, 0x00, 0xff, 0xff, 0xff, 0x00, 0xff, 0xff, 0xff, 0x00, 0xff, 0x00, 0xff, 0x00, 0xff, 0xff, 0xff, 0x00, 0xff, 0xff, 0xff, 0x00, 0xff, 0xff, 0xff, 0x00, 0xff, 0x00, 0xff, 0x00, 0x00, 0xff, 0xff, 0x00, 0xff, 0x00, 0xff, 0xff, 0xff, 0xff, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0xff, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0xff, 0x00, 0xff, 0x00, 0xff, 0xff, 0xff, 0xff, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
};
uint16_t masslen = sizeof(candleRaw);
uint16_t index = 0;
int main() {
init();
FastLED.addLeds<LED_TYPE, DATA_PIN, COLOR_ORDER>(leds, NUM_LEDS);
FastLED.setBrightness(brigtness);
while (true) {
// byte randomVal = pgm_read_byte (candleRaw+(index++)%masslen);
// byte randomVal = getRandom();
// byte randomVal = lcgRandom();
// byte randomVal = random_two_shifts();
// leds [0] = CHSV (0, 255, randomVal);
// FastLED.delay(60);
// if (random8(100)>10) leds [0].setHue(random8(15)); else leds [0] = 0;
// FastLED.show();
stembergOn();
FastLED.show();
delay(20);
// delay(random8(30,100));
}
}
void stembergOn (){
static byte index= 0;
byte massindex = pgm_read_byte(sintable+index/2);
leds[0] = CHSV (0, 255, pgm_read_byte (stembergGradient+massindex)); // 8 6 5 2 4
if (index!=255) index++;
}
uint8_t getRandom(void) {
const uint8_t randomvals[] PROGMEM = {
234,191,103,250,144,74,39,34,215,128,9,122,144,74,137,105,123,218,158,175,205,
118,149,13,98,7,173,179,194,97,115,110,213,80,220,142,102,102,36,152,90,135,
105,176,173,49,6,197,48,140,176,122,4,53,83,216,212,202,170,180,214,53,161,
225,129,185,106,22,12,190,97,158,170,92,160,194,134,169,98,246,128,195,24,
198,165,156,77,126,113,136,58,156,196,136,41,246,164,84,138,171,184,42,214,
203,128,89,39,198,85,140,148,149,36,215,78,170,234,131,124,152,239,154,214,
130,194,49,3,69,248,120,179,101,163,131,124,184,148,213,118,213,81,177,149,
58,213,33,201,63,10,195,215,190,7,86,245,128,9,8,40,102,51,125,94,92,5,159,
75,253,158,40,4,6,178,241,92,124,73,248,1,157,61,50,86,136,113,22,16,171,209,
230,144,240,14,188,2,167,22,88,57,50,86,171,73,114,175,34,226,245,57,180,111,
220,186,170,242,141,229,49,158,30,82,161,49,124,65,139,24,95,14,133,65,238,
116,180,190,49,130,30,30,59,93,173,139,19,187,2,163,102,26,255,23,239,196,19,
6,162
};
static uint8_t random1, random2;
random1++;
if (random1 == 0) {
random2 += 0x41;
}
return pgm_read_byte(randomvals + random1) ^ random2;
}
uint8_t lcgRandom (){ //linear congruential generator
static byte randomNum;
randomNum = (randomNum*5) + 129;
return (randomNum);
}
uint32_t random_two_shifts() { //found this in https://cdn.hackaday.io/files/10721458687264/bh-badge-animate.c
static uint32_t r_z = 362436069, r_w = 521288629;
r_z = 36969 * (r_z & 65535) + (r_z >> 16);
r_w = 18000 * (r_w & 65535) + (r_w >> 16);
return (r_z << 16) + r_w;
}