NeonDancer 9000

// ------  The NeonDancer 9000  ------- 

// This code will make your Adafruit Circuit Playground Express into a music visualizer, to an extent --- the mic isn't the best :(
// It cycles through random colors and LEDs very quickly to create a strobelight effect with color!! WOOOOOOOHHH
// It detects noise with the internal mic and depending on input it increases the brightness of the LEDs and how many will light up

// Created by Jhon Vergara


#include <Adafruit_CircuitPlayground.h>

#define Inputz  A1 // Our input for the switch


uint32_t colors[] =   // Colors to cycle through
{
  0xcc0000, // red  
  0xff9600, // orange
  0xffff00, // yellow
  0x00ff00, // green
  0x00ff81, // teal
  0x0000ff, // blue
  0x0000ff, // moar blue!
  0x9300ff, // purple
  0xff00ff, // pink
  0xcc0000  // red  
};

 int waitz;        // ----- How long to wait before the next cycle of lights begins
 int randz;        // ----- A random number to pick which LED will light up
 float brightz;    // ----- Takes microphone input to measure the amount of brightness and number of LEDs to light up
 float voltage;    // ----- Takes input from Inputz to turn into a more workable number to check if the lamp is "ON" or "OFF"
 
void setup() 
{
  CircuitPlayground.begin();
  waitz = 50;
}


// ----- This loop will check if the lamp is ON, execute the appropriate program and repeat FOREVER!!!
void loop() 

{
  {
// This looks useless but the "i" int is used in the inner "for loop" to change the color so a new color will be chosen per cycle
    for(int i = 0; i < 10; i += 1) 
    {    
      
 // ------  Check for input from switch  -----         
      uint16_t value = analogRead(Inputz);
      voltage = value * (5.0 / 1023.0);
      Serial.println(voltage);   

  // -----  Is the switch "ON"? If so run the program  -----
      if (voltage > 0.20)
      {      
         for(int j = 0; j < 10; j += 1)
         {         
         Soundz ();
         CircuitPlayground.setPixelColor(randz, colors[i]); //
         }
         CircuitPlayground.clearPixels(); 
      }
      
  // -----  If the switch is "OFF" clear the pixels  -----   
      else 
      {CircuitPlayground.clearPixels();}
      
    }  

// -----  Repeat the process after a brief wait  -----   
  delay(waitz);
  }
}


void Soundz ()
{
// ------  Gets input from the microphone and turns those weak values into more reasonable and workable numbers
  float sample = CircuitPlayground.mic.soundPressureLevel(10);  
  float brightz = (((sample - 63) * 10) -9);
  
// ------ bightz can't be a negative number or it won't work properly 
  if (brightz < 0)
  {
    brightz = 0;
  }
  
// -----  These "if statements" check the brightz variable to pick an appropriate amount of LEDS to light up
// -----  The higher the brightz value the more LEDS will light up and the brighter they will be

  if (brightz > 125.00)
  {randz = random(0, 10);}
  
  else if (brightz > 100.00)
  {randz = random(1, 9);}
  
  else if (brightz > 50.00)
  {randz = random(2, 8);}
  
  else if (brightz > 25.00) 
  {randz = random(3, 7);}
  
  else 
  {randz = random(4, 6);}

// ------  Sets the brightness of the LEDS based on the brightz float
  CircuitPlayground.setBrightness(brightz);
  
// ------  Check important information in the Serial Monitor
    Serial.println("SAMPLE----");
    Serial.println(sample);
    Serial.println("brightz-----");
    Serial.println(brightz);
    Serial.println("Randz-----");
    Serial.println(randz);
}