Show many neopixel strips in use simultaneously using Adafruit_NeoPixel

many_neopixel_strips.ino

// Show many neopixel strips in use simultaneously using Adafruit_NeoPixel
//
// 2024Dec12 - @todbot
// compiles, not tested

#include <Adafruit_NeoPixel.h>

#define NUM_STRIPS 3

const int pin_for_strip[] = {A0, A2, 5};
const int leds_per_strip[] = {20, 30, 10};
const neoPixelType format_per_strip[] = {NEO_GRB + NEO_KHZ800, NEO_BGR + NEO_KHZ800, NEO_BGR + NEO_KHZ800 };

Adafruit_NeoPixel *strips[NUM_STRIPS];

void setup() {
  // set up my strips like a sucker
  for(int i=0; i< NUM_STRIPS; i++) {  
    int pin = pin_for_strip[i];
    int num_leds  =  leds_per_strip[i];
    int format = format_per_strip[i];
    Adafruit_NeoPixel *strip = new Adafruit_NeoPixel(num_leds, pin, format);
    strips[i] = strip;
    strips[i]->begin();
  }

  // light up all the strips, RGB, like a sucker
  for(int i=0; i< NUM_STRIPS; i++) { 
    strips[i]->fill(0xff0000);
    strips[i]->show();
  }
  delay(100);
  for(int i=0; i< NUM_STRIPS; i++) { 
    strips[i]->fill(0x00ff00);
    strips[i]->show();
  }
  delay(100);
  for(int i=0; i< NUM_STRIPS; i++) { 
    strips[i]->fill(0x0000ff);
    strips[i]->show();
  }
}

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

}