mask-hotaru.cpp

//#define FASTLED_ALLOW_INTERRUPTS 0
#define FASTLED_ESP32_I2S 1



#include <M5Atom.h>
#define HANA_PIN 22

#define LED_PIN     25
#define COLOR_ORDER RGB
#define CHIPSET     WS2812
#define N_LEDS    10

#define BRIGHTNESS  250

CRGB leds[N_LEDS];
void setup() {
  M5.begin(false, false, false);

  Serial.begin(115200);
  pinMode(HANA_PIN,INPUT);
      delay(50);
  // put your setup code here, to run once:
  FastLED.addLeds<WS2812B,LED_PIN>(leds, N_LEDS);
  FastLED.setBrightness( BRIGHTNESS );
  Serial.println("setup ---end");
}
bool oldOut=true;
int count=0;
void loop() {
  // put your main code here, to run repeatedly:
  
  CHSV hsv;
  CRGB rgb;
  hsv.h=150;
  hsv.s=200;
  static float phase=0;
  bool out=true;
  #define COUNT_MAX 50
  out=digitalRead(HANA_PIN);
  if(out!=oldOut)count=COUNT_MAX;
  if(count ){
    phase += (oldOut)?-0.2:0.2;
    hsv.h=(oldOut)?100:20;
  }else{
    phase += out?-0.2:0.2;
    hsv.h=(out)?100:20;
  }
  
  for(int i=0;i<N_LEDS/2;i++){
    float v = sin(i*1+phase);
    if(v<0)v=0;
    v*= (float)(COUNT_MAX-count)/COUNT_MAX ;
    if(!out)v*=0.5;
    hsv.v=240*v;
    //Serial.println(hsv.v);
    hsv2rgb_rainbow(hsv,rgb);
    leds[N_LEDS/2-1-i]=rgb;
    leds[N_LEDS/2+i]=rgb;
  }

  if(count)count--;
  oldOut=out;
  FastLED.show();
  FastLED.delay(10);
  
  M5.update();

}