LED strip ws2812b: Difference between revisions

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== Introduction ==  
== Introduction ==  


300 LEDs, 5m,  
300 LEDs, 5m,
 
Each led draws about 60mA current??? Arduino can supply about 200 mA. That makes


== Programming ==
== Programming ==

Revision as of 18:03, 8 November 2024

Introduction

300 LEDs, 5m,

Each led draws about 60mA current??? Arduino can supply about 200 mA. That makes

Programming

Simple code using FastLED package:

#include <FastLED.h>

#define NUM_LEDS 3
#define LED_PIN 5

CRGB leds[NUM_LEDS];

void setup () {
  FastLED.addLeds<WS2812B, LED_PIN, GRB>(leds, NUM_LEDS);
  FastLED.setBrightness(50);
  delay(2000);
}


void loop () {
  for (int i=0; i<NUM_LEDS; i++){
    leds[i] = CRGB::Red;
    FastLED.show();
    delay(500);
    leds[i] = CRGB::Green;
    FastLED.show();
    delay(500);

    leds[i] = CRGB::Black;
    FastLED.show();
 }
}