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LED STRIP WS2812b MENGIKUTI IRAMA MUSIK-ARDUINO

  • Kamis, 17 Oktober 2024
  • Administrator
  • 0 komentar
LED STRIP WS2812b MENGIKUTI IRAMA MUSIK-ARDUINO

BAHAN :

  • ARDUINO NANO
  • ANALOG SENSOR SUARA
  • LED STRIP WS2812b
  • ADAPTOR CHARGER HP
  • KABEL MICRO USB SESUAI ARDUINO NANO
  • JUMPER
  • BREADBOARD

 


KODING :

#include <Adafruit_NeoPixel.h>
#ifdef __AVR__
#include <avr/power.h>
#endif

int outputValue=0;
int rememberOutputValue;
int randNumber;
int counter = 0;
int loopCounter = 0;

#define PIN            6
#define NUMPIXELS      15

Adafruit_NeoPixel pixels = Adafruit_NeoPixel(NUMPIXELS, PIN, NEO_GRB + NEO_KHZ800);

void setup() {
  // put your setup code here, to run once:
  pixels.begin();
  randomSeed(analogRead(0));
  Serial.begin(9600);
}



// 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 pixels.Color(255 - WheelPos * 3, 0, WheelPos * 3,0);
  }
  if(WheelPos < 170) {
    WheelPos -= 85;
    return pixels.Color(0, WheelPos * 3, 255 - WheelPos * 3,0);
  }
  WheelPos -= 170;
  return pixels.Color(WheelPos * 3, 255 - WheelPos * 3, 0,0);
}


void loop() {
  // put your main code here, to run repeatedly

    // read the analog in value 100 times and count high levels
   int sensorValue;
   counter = 0;
   
   for (int i=0; i < 100; i++){
    sensorValue = analogRead(A0);
    if(sensorValue > 500) counter++;
   }
 
 
  if(map(counter, 0, 60, 0, 24) > outputValue)outputValue = map(counter, 0, 40, 0, 24);
  else if(loopCounter %2 == 0)outputValue-=1;
 
  if(outputValue < 0) outputValue = 0;
  if(outputValue > 24) outputValue = 24;

 
  if(loopCounter % 60 == 0)randNumber = random(255);
  loopCounter++;

  // clear all LEDs
 for(int i=0;i < NUMPIXELS;i++){

    // pixels.Color takes RGB values, from 0,0,0 up to 255,255,255
    pixels.setPixelColor(i, pixels.Color(0,0,0, 255));
   
  }

 if(rememberOutputValue != outputValue){    
  for(int i=24;i > (24-outputValue) || (outputValue == 24 && i == 0);i--){
  pixels.setPixelColor(i, Wheel((randNumber) & 255));
 }
 
   pixels.show(); // This sends the updated pixel color to the hardware
}  
   rememberOutputValue = outputValue;
}

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