week9. Output Devices

        // A non-blocking everyday NeoPixel strip test program.

        // NEOPIXEL BEST PRACTICES for most reliable operation:
        // - Add 1000 uF CAPACITOR between NeoPixel strip's + and - connections.
        // - MINIMIZE WIRING LENGTH between microcontroller board and first pixel.
        // - NeoPixel strip's DATA-IN should pass through a 300-500 OHM RESISTOR.
        // - AVOID connecting NeoPixels on a LIVE CIRCUIT. If you must, ALWAYS
        //   connect GROUND (-) first, then +, then data.
        // - When using a 3.3V microcontroller with a 5V-powered NeoPixel strip,
        //   a LOGIC-LEVEL CONVERTER on the data line is STRONGLY RECOMMENDED.
        // (Skipping these may work OK on your workbench but can fail in the field)
        
        #include 
        #ifdef __AVR__
         #include  // Required for 16 MHz Adafruit Trinket
        #endif
        
        // Which pin on the Arduino is connected to the NeoPixels?
        // On a Trinket or Gemma we suggest changing this to 1:
        #ifdef ESP32
        // Cannot use 6 as output for ESP. Pins 6-11 are connected to SPI flash. Use 16 instead.
        #define LED_PIN    D10
        #else
        #define LED_PIN    D10
        #endif
        
        // How many NeoPixels are attached to the Arduino?
        #define LED_COUNT 60
        
        // Declare our NeoPixel strip object:
        Adafruit_NeoPixel strip(LED_COUNT, LED_PIN, NEO_GRB + NEO_KHZ800);
        // Argument 1 = Number of pixels in NeoPixel strip
        // Argument 2 = Arduino pin number (most are valid)
        // Argument 3 = Pixel type flags, add together as needed:
        //   NEO_KHZ800  800 KHz bitstream (most NeoPixel products w/WS2812 LEDs)
        //   NEO_KHZ400  400 KHz (classic 'v1' (not v2) FLORA pixels, WS2811 drivers)
        //   NEO_GRB     Pixels are wired for GRB bitstream (most NeoPixel products)
        //   NEO_RGB     Pixels are wired for RGB bitstream (v1 FLORA pixels, not v2)
        //   NEO_RGBW    Pixels are wired for RGBW bitstream (NeoPixel RGBW products)
        
        unsigned long pixelPrevious = 0;        // Previous Pixel Millis
        unsigned long patternPrevious = 0;      // Previous Pattern Millis
        int           patternCurrent = 0;       // Current Pattern Number
        int           patternInterval = 5000;   // Pattern Interval (ms)
        bool          patternComplete = false;
        
        int           pixelInterval = 50;       // Pixel Interval (ms)
        int           pixelQueue = 0;           // Pattern Pixel Queue
        int           pixelCycle = 0;           // Pattern Pixel Cycle
        uint16_t      pixelNumber = LED_COUNT;  // Total Number of Pixels
        
        // setup() function -- runs once at startup --------------------------------
        void setup() {
          // These lines are specifically to support the Adafruit Trinket 5V 16 MHz.
          // Any other board, you can remove this part (but no harm leaving it):
        #if defined(__AVR_ATtiny85__) && (F_CPU == 16000000)
          clock_prescale_set(clock_div_1);
        #endif
          // END of Trinket-specific code.
        
          strip.begin();           // INITIALIZE NeoPixel strip object (REQUIRED)
          strip.show();            // Turn OFF all pixels ASAP
          strip.setBrightness(50); // Set BRIGHTNESS to about 1/5 (max = 255)
        }
        
        // loop() function -- runs repeatedly as long as board is on ---------------
        void loop() {
          unsigned long currentMillis = millis();                     //  Update current time
          if( patternComplete || (currentMillis - patternPrevious) >= patternInterval) {  //  Check for expired time
            patternComplete = false;
            patternPrevious = currentMillis;
            patternCurrent++;                                         //  Advance to next pattern
            if(patternCurrent >= 7)
              patternCurrent = 0;
          }
        
          if(currentMillis - pixelPrevious >= pixelInterval) {        //  Check for expired time
            pixelPrevious = currentMillis;                            //  Run current frame
            switch (patternCurrent) {
              case 7:
                theaterChaseRainbow(50); // Rainbow-enhanced theaterChase variant
                break;
              case 6:
                rainbow(10); // Flowing rainbow cycle along the whole strip
                break;     
              case 5:
                theaterChase(strip.Color(0, 0, 127), 50); // Blue
                break;
              case 4:
                theaterChase(strip.Color(127, 0, 0), 50); // Red
                break;
              case 3:
                theaterChase(strip.Color(127, 127, 127), 50); // White
                break;
              case 2:
                colorWipe(strip.Color(0, 0, 255), 50); // Blue
                break;
              case 1:
                colorWipe(strip.Color(0, 255, 0), 50); // Green
                break;        
              default:
                colorWipe(strip.Color(255, 0, 0), 50); // Red
                break;
            }
          }
        }
        
        // Some functions of our own for creating animated effects -----------------
        
        // Fill strip pixels one after another with a color. Strip is NOT cleared
        // first; anything there will be covered pixel by pixel. Pass in color
        // (as a single 'packed' 32-bit value, which you can get by calling
        // strip.Color(red, green, blue) as shown in the loop() function above),
        // and a delay time (in milliseconds) between pixels.
        void colorWipe(uint32_t color, int wait) {
          static uint16_t current_pixel = 0;
          pixelInterval = wait;                        //  Update delay time
          strip.setPixelColor(current_pixel++, color); //  Set pixel's color (in RAM)
          strip.show();                                //  Update strip to match
          if(current_pixel >= pixelNumber) {           //  Loop the pattern from the first LED
            current_pixel = 0;
            patternComplete = true;
          }
        }
        
        // Theater-marquee-style chasing lights. Pass in a color (32-bit value,
        // a la strip.Color(r,g,b) as mentioned above), and a delay time (in ms)
        // between frames.
        void theaterChase(uint32_t color, int wait) {
          static uint32_t loop_count = 0;
          static uint16_t current_pixel = 0;
        
          pixelInterval = wait;                   //  Update delay time
        
          strip.clear();
        
          for(int c=current_pixel; c < pixelNumber; c += 3) {
            strip.setPixelColor(c, color);
          }
          strip.show();
        
          current_pixel++;
          if (current_pixel >= 3) {
            current_pixel = 0;
            loop_count++;
          }
        
          if (loop_count >= 10) {
            current_pixel = 0;
            loop_count = 0;
            patternComplete = true;
          }
        }
        
        // Rainbow cycle along whole strip. Pass delay time (in ms) between frames.
        void rainbow(uint8_t wait) {
          if(pixelInterval != wait)
            pixelInterval = wait;                   
          for(uint16_t i=0; i < pixelNumber; i++) {
            strip.setPixelColor(i, Wheel((i + pixelCycle) & 255)); //  Update delay time  
          }
          strip.show();                             //  Update strip to match
          pixelCycle++;                             //  Advance current cycle
          if(pixelCycle >= 256)
            pixelCycle = 0;                         //  Loop the cycle back to the begining
        }
        
        //Theatre-style crawling lights with rainbow effect
        void theaterChaseRainbow(uint8_t wait) {
          if(pixelInterval != wait)
            pixelInterval = wait;                   //  Update delay time  
          for(int i=0; i < pixelNumber; i+=3) {
            strip.setPixelColor(i + pixelQueue, Wheel((i + pixelCycle) % 255)); //  Update delay time  
          }
          strip.show();
          for(int i=0; i < pixelNumber; i+=3) {
            strip.setPixelColor(i + pixelQueue, strip.Color(0, 0, 0)); //  Update delay time  
          }      
          pixelQueue++;                           //  Advance current queue  
          pixelCycle++;                           //  Advance current cycle
          if(pixelQueue >= 3)
            pixelQueue = 0;                       //  Loop
          if(pixelCycle >= 256)
            pixelCycle = 0;                       //  Loop
        }
        
        // Input a value 0 to 255 to get a color value.
        // The colours are a transition r - g - b - back to r.
        uint32_t Wheel(byte WheelPos) {
          WheelPos = 255 - WheelPos;
          if(WheelPos < 85) {
            return strip.Color(255 - WheelPos * 3, 0, WheelPos * 3);
          }
          if(WheelPos < 170) {
            WheelPos -= 85;
            return strip.Color(0, WheelPos * 3, 255 - WheelPos * 3);
          }
          WheelPos -= 170;
          return strip.Color(WheelPos * 3, 255 - WheelPos * 3, 0);
        }
        


      
    

  void colorWipe(uint32_t color, int wait) {
    static uint16_t current_pixel = 0;
    pixelInterval = wait;                        //  Update delay time
    strip.setPixelColor(current_pixel++, color); //  Set pixel's color (in RAM)
    strip.show();                                //  Update strip to match
    if(current_pixel >= pixelNumber) {           //  Loop the pattern from the first LED
      current_pixel = 0;
      patternComplete = true;
    }
  }
      
    

  colorWipe(strip.Color( 255, 0, 255), 30);   //wipe purple
  

  void rainbow(uint8_t wait) {
    if(pixelInterval != wait)
      pixelInterval = wait;                   
    for(uint16_t i=0; i < pixelNumber; i++) {
      strip.setPixelColor(i, Wheel((i + pixelCycle) & 255)); //  Update delay time  
    }
    strip.show();                             //  Update strip to match
    pixelCycle++;                             //  Advance current cycle
    if(pixelCycle >= 256)
      pixelCycle = 0;                         //  Loop the cycle back to the begining
  }

  rainbow(500);

    uint32_t Wheel(byte WheelPos) {
      WheelPos = 255 - WheelPos;
      if(WheelPos < 85) {
        return strip.Color(255 - WheelPos * 3, 0, WheelPos * 3);
      }
      if(WheelPos < 170) {
        WheelPos -= 85;
        return strip.Color(0, WheelPos * 3, 255 - WheelPos * 3);
      }
      WheelPos -= 170;
      return strip.Color(WheelPos * 3, 255 - WheelPos * 3, 0);
    }
  
  

    for(uint16_t i=0; i < pixelNumber; i++) {
      strip.setPixelColor(i, Wheel((i*50 + pixelCycle) & 255)); //  Update delay time  
    }
  
  

    void theaterChaseRainbow(uint8_t wait) {
      if(pixelInterval != wait)
        pixelInterval = wait;                   //  Update delay time  
      for(int i=0; i < pixelNumber; i+=3) {
        strip.setPixelColor(i + pixelQueue, Wheel((i + pixelCycle) % 255)); //  Update delay time  
      }
      strip.show();
      for(int i=0; i < pixelNumber; i+=3) {
        strip.setPixelColor(i + pixelQueue, strip.Color(0, 0, 0)); //  Update delay time  
      }      
      pixelQueue++;                           //  Advance current queue  
      pixelCycle++;                           //  Advance current cycle
      if(pixelQueue >= 3)
        pixelQueue = 0;                       //  Loop
      if(pixelCycle >= 256)
        pixelCycle = 0;                       //  Loop
    }
  
  

      void theaterChaseRainbow(uint8_t wait) {
        if (pixelInterval != wait)
          pixelInterval = wait;  //  Update delay time
        for (int i = 0 ; i < pixelNumber; i += 7) {
          for(int j = 0; j <= i%7 ; j++){
            
            strip.setPixelColor( i+j + pixelQueue, Wheel((i*50 + pixelCycle) & 255));  //  Update delay time
          }
         
          delay(50);
          
        }
        strip.show();
    
        pixelQueue++;  //  Advance pixelQuewu
        pixelCycle++;  //  Advance current cycle
        if (pixelQueue >= pixelNumber/7)
          pixelQueue = 0;  //  Loop
        if (pixelCycle >= 256)
          pixelCycle = 0;  //  Loop
      }