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194 changes: 194 additions & 0 deletions Glowing_Beehive_Wig
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// Code by Erin St Blaine for Adafruit.com
// Full tutorial at https://learn.adafruit.com/glowing-beehive-hairdo-wig/

#include <Adafruit_CircuitPlayground.h> // add this before the FastLED library to avoid issues
#include <FastLED.h>

#define LED_PIN 6 //led strand is soldered to pin 6
#define CP_PIN 17 //circuit playground's neopixels live on pin 17
#define NUM_LEDS 12 // number of LEDs in my strand
#define NUM_CP 10 // number of neopixels on the circuit playground

// I have purposefully mixed up the color order on the Neopixel strip to
// quickly and easily add color variety to this code -- This way the strip will always
// show a different color from the light pipe.

#define COLOR_ORDER GRB
#define COLOR_ORDER_STRIP RBG

uint8_t brightness = 255; //led strand brightness control
uint8_t cpbrightness = 255; //circuit playground brightness control

int STEPS = 25; //makes the rainbow colors more or less spread out
int NUM_MODES = 4; // change this number if you add or subtract modes

CRGB leds[NUM_LEDS]; //I've set up different arrays for the neopixel strand and the circuit playground
CRGB cp[NUM_CP]; // so that we can control the brightness separately

CRGBPalette16 currentPalette;
TBlendType currentBlending;

int ledMode = 0; //Initial mode
bool leftButtonPressed;
bool rightButtonPressed;

// SOUND REACTIVE SETUP --------------

#define MIC_PIN A4 // Analog port for microphone
#define DC_OFFSET 0 // DC offset in mic signal - if unusure, leave 0
// I calculated this value by serialprintln lots of mic values
#define NOISE 200 // Noise/hum/interference in mic signal and increased value until it went quiet
#define SAMPLES 60 // Length of buffer for dynamic level adjustment
#define TOP (NUM_LEDS + 2) // Allow dot to go slightly off scale
#define PEAK_FALL 10 // Rate of peak falling dot

byte
peak = 0, // Used for falling dot
dotCount = 0, // Frame counter for delaying dot-falling speed
volCount = 0; // Frame counter for storing past volume data
int
vol[SAMPLES], // Collection of prior volume samples
lvl = 10, // Current audio level, change this number to adjust sensitivity
minLvlAvg = 0, // For dynamic adjustment of graph low & high
maxLvlAvg = 512;


// SETUP -------------------

void setup() {
Serial.begin(57600);
CircuitPlayground.begin();
FastLED.addLeds<WS2812B, LED_PIN, COLOR_ORDER_STRIP>(leds, NUM_LEDS).setCorrection( TypicalLEDStrip );
FastLED.addLeds<WS2812B, CP_PIN, COLOR_ORDER>(cp, 10).setCorrection( TypicalLEDStrip );
currentBlending = LINEARBLEND;
set_max_power_in_volts_and_milliamps(5, 500); // FastLED 2.1 Power management set at 5V, 500mA


}

void loop() {

leftButtonPressed = CircuitPlayground.leftButton();
rightButtonPressed = CircuitPlayground.rightButton();

if (leftButtonPressed) { //left button cycles through modes
clearpixels();
ledMode=ledMode+1;
delay(300);
if (ledMode > NUM_MODES){
ledMode=0;
}
}
if (rightButtonPressed) { // right button turns all leds off
ledMode=99;

}

switch (ledMode) {
case 0: currentPalette = RainbowColors_p; rainbow(); break;
case 1: soundreactive(); break;
case 2: currentPalette = OceanColors_p; rainbow(); break;
case 3: currentPalette = LavaColors_p; rainbow(); break;
case 4: currentPalette = RainbowStripeColors_p; rainbow(); break;
case 99: clearpixels(); break;

}
}

void clearpixels()
{
CircuitPlayground.clearPixels();
for (int i = 0; i < NUM_LEDS; i++) leds[i] = CRGB::Black;
for (int i = 0; i < NUM_CP; i++) cp[i] = CRGB::Black;
FastLED.show();
}

void rainbow()
{

static uint8_t startIndex = 0;
startIndex = startIndex + 1; /* motion speed */

FillLEDsFromPaletteColors( startIndex);

FastLED.show();
FastLED.delay(20);}

//this bit is in every palette mode, needs to be in there just once
void FillLEDsFromPaletteColors( uint8_t colorIndex)
{
for (int i = 0; i < NUM_LEDS; i++) leds[i] = ColorFromPalette( currentPalette, colorIndex, brightness, currentBlending);
for (int i = 0; i < NUM_CP; i++) cp[i] = ColorFromPalette( currentPalette, colorIndex, cpbrightness, currentBlending);
colorIndex += 25;

}


void soundreactive() {

uint8_t i;
uint16_t minLvl, maxLvl;
int n, height;

n = analogRead(MIC_PIN); // Raw reading from mic
n = abs(n - 512 - DC_OFFSET); // Center on zero

n = (n <= NOISE) ? 0 : (n - NOISE); // Remove noise/hum
lvl = ((lvl * 7) + n) >> 3; // "Dampened" reading (else looks twitchy)

// Calculate bar height based on dynamic min/max levels (fixed point):
height = TOP * (lvl - minLvlAvg) / (long)(maxLvlAvg - minLvlAvg);

if (height < 0L) height = 0; // Clip output
else if (height > TOP) height = TOP;
if (height > peak) peak = height; // Keep 'peak' dot at top


// Color pixels based on rainbow gradient -- led strand
for (i=0; i<NUM_LEDS; i++) {
if (i >= height) leds[i].setRGB( 0, 0,0);
else leds[i] = CHSV(map(i,0,NUM_LEDS-1,0,255), 255, brightness); //constrain colors here by changing HSV values
}

// Draw peak dot -- led strand
if (peak > 0 && peak <= NUM_LEDS-1) leds[peak] = CHSV(map(peak,0,NUM_LEDS-1,0,255), 255, brightness);

// Color pixels based on rainbow gradient -- circuit playground
for (i=0; i<NUM_CP; i++) {
if (i >= height) cp[i].setRGB( 0, 0,0);
else cp[i] = CHSV(map(i,0,NUM_CP-1,0,255), 255, cpbrightness); //constrain colors here by changing HSV values
}

// Draw peak dot -- circuit playground
if (peak > 0 && peak <= NUM_CP-1) cp[peak] = CHSV(map(peak,0,NUM_LEDS-1,0,255), 255, cpbrightness);

// Every few frames, make the peak pixel drop by 1:

if (++dotCount >= PEAK_FALL) { // fall rate
if(peak > 0) peak--;
dotCount = 0;
}

vol[volCount] = n; // Save sample for dynamic leveling
if (++volCount >= SAMPLES) volCount = 0; // Advance/rollover sample counter

// Get volume range of prior frames
minLvl = maxLvl = vol[0];
for (i=1; i<SAMPLES; i++) {
if (vol[i] < minLvl) minLvl = vol[i];
else if (vol[i] > maxLvl) maxLvl = vol[i];
}
// minLvl and maxLvl indicate the volume range over prior frames, used
// for vertically scaling the output graph (so it looks interesting
// regardless of volume level). If they're too close together though
// (e.g. at very low volume levels) the graph becomes super coarse
// and 'jumpy'...so keep some minimum distance between them (this
// also lets the graph go to zero when no sound is playing):
if((maxLvl - minLvl) < TOP) maxLvl = minLvl + TOP;
minLvlAvg = (minLvlAvg * 63 + minLvl) >> 6; // Dampen min/max levels
maxLvlAvg = (maxLvlAvg * 63 + maxLvl) >> 6; // (fake rolling average)


show_at_max_brightness_for_power(); // Power managed FastLED display
Serial.println(LEDS.getFPS());
}