LED STRIP WS2812b MENGIKUTI IRAMA MUSIK-ARDUINO
- Kamis, 17 Oktober 2024
- Administrator
- 0 komentar
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>#endifint outputValue=0;int rememberOutputValue;int randNumber;int counter = 0;int loopCounter = 0;#define PIN 6#define NUMPIXELS 15Adafruit_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;}
