vee.ino

#include <Adafruit_NeoPixel.h>

#define PIN        0 // On Trinket or Gemma, suggest changing this to 1


#define NUMPIXELS 3 // Popular NeoPixel ring size

Adafruit_NeoPixel strip(NUMPIXELS, PIN, NEO_GRB + NEO_KHZ800);

int counter = 0;

bool buttonState = 0;
int pastTime = 0;
bool wait = false;
int interval = 2000;

void setup() {
  pinMode(1, INPUT_PULLUP);
  strip.clear();
  strip.begin();
}

void loop() {

  buttonState = digitalRead(1);

  if (buttonState == 0) {
    for (int j = 0; j < 3; j++) {
      for (int i = 0; i < 3; i++) {
        strip.clear(); // Set all pixel colors to 'off'
        strip.setPixelColor(i, strip.Color(0, 150, 0));
        strip.show();   // Send the updated pixel colors to the hardware.
        delay(200);
      }
    }

    counter = random(3);

    for (int k = 0; k < counter; k++) {
      strip.clear(); // Set all pixel colors to 'off'
      strip.setPixelColor(k, strip.Color(0, 150, 0));
      strip.show();   // Send the updated pixel colors to the hardware.
      delay(200);
    }

    pastTime = millis();
    wait = true;
  }
  if (wait && millis() - pastTime > interval) {
    strip.clear();
    strip.show();
    pastTime = millis();
    wait = false;
  }
}