Neopixel All Flash

i'm trying head around how neopixel library works, , have 4 gems want blink @ same time. put each gem on it's own pin, , put them in array.

my question because i'm learning how harness power of neopixels! code wasn't sloppy. example, should messing brightness turn off, or set rgb 0,0,0?

code: [select]

#include <adafruit_neopixel.h>

#define pin2 2                          // cyclotron upper left light
#define pin3 3                          // cyclotron upper right light
#define pin4 4                          // cyclotron lower left light
#define pin5 5                          // cyclotron lower left light
#define cyc_led_num 8                   // # of leds on each cyclotron gem (12???)

int rotatenum = 0;                      // rotates between cyclotron lights
int = 0;                              // counter initalizing gems in setup()

// parameter 1 = number of pixels in strip
// parameter 2 = pin number (most valid)
// parameter 3 = pixel type flags, add needed:
//   neo_khz800  800 khz bitstream (most neopixel products w/ws2812 leds)
//   neo_khz400  400 khz (classic 'v1' (not v2) flora pixels, ws2811 drivers)
//   neo_grb     pixels wired grb bitstream (most neopixel products)
//   neo_rgb     pixels wired rgb bitstream (v1 flora pixels, not v2)
// adafruit_neopixel(parameter1, parameter2, neo_grb + neo_khz800)
adafruit_neopixel cyclopins[] = {
  adafruit_neopixel(cyc_led_num, pin2, neo_grb + neo_khz800),
  adafruit_neopixel(cyc_led_num, pin3, neo_grb + neo_khz800),
  adafruit_neopixel(cyc_led_num, pin4, neo_grb + neo_khz800),
  adafruit_neopixel(cyc_led_num, pin5, neo_grb + neo_khz800),
};

void setup() {
  serial.begin(9600);             // serial print (testing)

  for(i=0;i<3;i++){
    cyclopins[i].begin();            // prepare data pin neopixel output
    cyclopins[i].show();             // initializes neopixels initial "off" state in case left lit prior program
  }
  //serial.print(" show#: ");
  //serial.print(i);
}

void loop() {

  //cycblinkfade();         // each gem lights , fades repeating sequence
  cycoverheat();        // 4 gems flash red specified amount of time
  rotateled();            // iterates next gem

}

void rotateled(){
  if(rotatenum < 3){
    rotatenum++;
  } else {
    rotatenum=0;
  }
  serial.print(" rotatenum#: ");
  serial.print(rotatenum);
}

// each gem lights , fades repeating sequence
void cycblinkfade(){
  for(int i=0; i<cyc_led_num; i++){
  cyclopins[rotatenum].setbrightness(255);
  cyclopins[rotatenum].setpixelcolor(i, 255,0,0); // red // setpixelcolor(n, red, green, blue)
  }
  cyclopins[rotatenum].show();
  for(int y=255;y>=0;y--){
    cyclopins[rotatenum].setbrightness(y);   // change brightness next time through loop:
    cyclopins[rotatenum].show();
    delay(4);
  }
  //delay(500); // turn on add delay
}

void cycoverheat(){

  for(int oh=0;oh<3;oh++){
    cyclopins[oh].setbrightness(255);
    for(int i=0; i<cyc_led_num; i++){
      cyclopins[oh].setpixelcolor(i, 255,0,0); // red // setpixelcolor(n, red, green, blue)
    }
  cyclopins[oh].show();       
  }
  delay(300);

  for(int oh=0;oh<3;oh++){
    cyclopins[oh].setbrightness(0);
    for(int i=0; i<cyc_led_num; i++){
      cyclopins[oh].setpixelcolor(i, 255,0,0); // red // setpixelcolor(n, red, green, blue)
    }
  cyclopins[oh].show();       
  }
  delay(300);
}


quote from: tebasaki on aug 07, 2017, 06:30 pm

...i have 4 gems want blink @ same time. put each gem on it's own pin, , put them in array.

they typically wired in series, attached single pin , dealt library.

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