RBG LED PCB Clock

#include <Rtc_Pcf8563.h>
#include <Encoder.h>
#include <Wire.h>
#include <Adafruit_NeoPixel.h>

#define HOURPIN 1
#define MINSECPIN 0
#define APIN A7
#define BPIN A6
#define BUTTON A5

Encoder encoder(APIN,BPIN);
Rtc_Pcf8563 rtc;
Adafruit_NeoPixel hourStrip = Adafruit_NeoPixel(80, HOURPIN, NEO_GRB + NEO_KHZ800);
Adafruit_NeoPixel minSecStrip = Adafruit_NeoPixel(120, MINSECPIN, NEO_GRB + NEO_KHZ800);

boolean buttonReleased = true;
int state = 0; //0=normal, 1=set second, 2=set minute, 3=set hour, 4=set brightness

int tic = 0, second = 0, minute = 5, hour = 3;
int minSecColor = 100, hourColor =50, brightness = 50;
long oldPos = 0, newPos = 0, oldTime=0;

void setup() {
  pinMode(3, INPUT);
  hourStrip.begin();
  minSecStrip.begin();
  hourStrip.setBrightness(brightness);
  minSecStrip.setBrightness(brightness);
  hourStrip.show(); // Initialize all pixels to 'off'
  minSecStrip.show(); // Initialize all pixels to 'off'

  for(int i=0; i<hourStrip.numPixels(); i++) {
      hourStrip.setPixelColor(i, Wheel((i+hourColor) & 255));
  }
  for(int i=0; i<minSecStrip.numPixels(); i++) {
      minSecStrip.setPixelColor(i, Wheel((i+minSecColor) & 255));
  }

  hourStrip.show();
  minSecStrip.show();

  rtc.initClock();
  rtc.setDate(14,6,3,0,10);//day, weekday, month, century, year
  rtc.setTime(3,5,10); //hr, min, sec
  rtc.setSquareWave(130); //sets to 32Hz square wave: format is 0b10000010 - bit 7 enables CLKOUT and bit 1:0 sets the frequency (00=32.768kHz, 01=1024Hz, 10=32Hz, 11=1Hz)

  //attachInterrupt(3, tick, FALLING); //Attach 32Hz clock signal to our main clock function

}

void loop() {
  if(buttonReleased) {
  //Check if button has been newly pressed
    if(digitalRead(BUTTON) == LOW) { //User wants to advance to the next state
      state++;
      buttonReleased = false;
      if(state==5) {
        state = 0;
        rtc.setTime(hour, minute, second); //hr, min, sec
      }
    }
  } else if(digitalRead(BUTTON)==HIGH) {buttonReleased = true; }//Button has been released

  //State 0: Normal clock stuff
  tick(); //Done on 32Hz interrupt
  if(state!=0) { //Set all pixels to dark since we're setting something. We put this here so we don't repeat code
    for(int i=0; i<minSecStrip.numPixels(); i++) {
      minSecStrip.setPixelColor(i, 0);
    }
    for(int i=0; i<hourStrip.numPixels(); i++) {
      hourStrip.setPixelColor(i, 0);
    }
  }
  //State 1: Set Second
  if(state==1) {
    newPos = encoder.read();
    if(newPos!=oldPos) {
      second += (newPos-oldPos);
      oldPos = newPos;
      if(second>59){ second -=60; }
      if(second<0){ second +=60; }
    }
    minSecStrip.setPixelColor(minute*2, 100, 100, 100);
    minSecStrip.setPixelColor(minute*2+1, 100, 100, 100);
    minSecStrip.setPixelColor(minute*2+2, 100, 100, 100);
    minSecStrip.setPixelColor(minute*2+3, 100, 100, 100);
    minSecStrip.setPixelColor(second*2, 255, 10, 255);
    minSecStrip.setPixelColor(second*2+1, 255, 10, 255);
    minSecStrip.setPixelColor(second*2+2, 255, 10, 255);
    hourStrip.setPixelColor((hour*hourStrip.numPixels()/12), 200, 200, 200);
    hourStrip.setPixelColor((hour*hourStrip.numPixels()/12)+1, 200, 200, 200);
    hourStrip.setPixelColor((hour*hourStrip.numPixels()/12)+2, 200, 200, 200);
    hourStrip.setPixelColor((hour*hourStrip.numPixels()/12)+3, 200, 200, 200);
  }
  //State 2: Set Minute
  if(state==2) {
    newPos = encoder.read();
    if(newPos!=oldPos) {
      minute += (newPos-oldPos);
      oldPos = newPos;
    }
    if(minute>59){ minute -=60; }
    if(minute<0){ minute +=60; }
    minSecStrip.setPixelColor(second*2, 100, 100, 100);
    minSecStrip.setPixelColor(second*2+1, 100, 100, 100);
    minSecStrip.setPixelColor(second*2+2, 100, 100, 100);
    minSecStrip.setPixelColor(minute*2, 255, 10, 255);
    minSecStrip.setPixelColor(minute*2+1, 255, 10, 255);
    minSecStrip.setPixelColor(minute*2+2, 255, 10, 255);
    minSecStrip.setPixelColor(minute*2+3, 255, 10, 255);
    hourStrip.setPixelColor((hour*hourStrip.numPixels()/12), 200, 200, 200);
    hourStrip.setPixelColor((hour*hourStrip.numPixels()/12)+1, 200, 200, 200);
    hourStrip.setPixelColor((hour*hourStrip.numPixels()/12)+2, 200, 200, 200);
    hourStrip.setPixelColor((hour*hourStrip.numPixels()/12)+3, 200, 200, 200);
  }
  //State 3: Set Hour
  if(state==3) {
    newPos = encoder.read();
    if(abs(newPos-oldPos)>3) {
      hour += (newPos-oldPos)/3;
      oldPos = newPos;
    }
    if(hour>11) { hour -=12; }
    if(hour<0) { hour +=12; }

    minSecStrip.setPixelColor(second*2, 200, 200, 200);
    minSecStrip.setPixelColor(second*2+1, 200, 200, 200);
    minSecStrip.setPixelColor(second*2+2, 200, 200, 200);
    minSecStrip.setPixelColor(minute*2, 200, 200, 200);
    minSecStrip.setPixelColor(minute*2+1, 200, 200, 200);
    minSecStrip.setPixelColor(minute*2+2, 200, 200, 200);
    minSecStrip.setPixelColor(minute*2+3, 200, 200, 200);
    hourStrip.setPixelColor((hour*hourStrip.numPixels()/12), 255, 10, 255);
    hourStrip.setPixelColor((hour*hourStrip.numPixels()/12)+1, 255, 10, 255);
    hourStrip.setPixelColor((hour*hourStrip.numPixels()/12)+2, 255, 10, 255);
    hourStrip.setPixelColor((hour*hourStrip.numPixels()/12)+3, 255, 10, 255);
  }
  //State 4: Set Brightness
  if(state==4) {
    newPos = encoder.read();
    if(newPos!=oldPos) {
      brightness -= (newPos-oldPos);
      oldPos = newPos;
    }
    if(brightness>254) { brightness = 254; }
    if(brightness<1) { brightness = 1; }
    hourStrip.setBrightness(brightness);
    minSecStrip.setBrightness(brightness);

    for(int i=0; i<minSecStrip.numPixels(); i++) {
      minSecStrip.setPixelColor(i, 255, 255, 255);
    }
    for(int i=0; i<hourStrip.numPixels(); i++) {
      hourStrip.setPixelColor(i, 255, 255, 255);
    }
  }
  hourStrip.show();
  minSecStrip.show();
}

void tick() {//Do clock stuff at 32Hz; For some reason it actually does this at 64Hz, I'm not sure why...
  if(state==0) {
      //Advance 32Hz tick (actually 64Hz for some reason) and do second/minute/hour advances
    while(digitalRead(3)==LOW) {} //wait for rising edge of clock
    tic++;
    if(tic==32){

    //if((millis()-oldTime)>=472) { //Substitue timer for RTC since it isn't working yet
    //  oldTime = millis();
      tic = 0;
      second--;
      if(second==-1) {
        second = 119;
        minute--;
        if(minute==-1) {
          minute = 59;
          hour--;
          if(hour==-1){ hour = 11;}
        }
      }
    }
    for(int i=0; i<minSecStrip.numPixels(); i++) {
      minSecStrip.setPixelColor(i, Wheel((i+i+minSecColor) & 255));
    }
    minSecStrip.setPixelColor(second, 0, 0, 0);
    minSecStrip.setPixelColor(second+1, 128, 128, 128);
    minSecStrip.setPixelColor(second+2, 0, 0, 0);
    minSecStrip.setPixelColor(minute*2, 0, 0, 0);
    minSecStrip.setPixelColor(minute*2+1, 255, 255, 255);
    minSecStrip.setPixelColor(minute*2+2, 255, 255, 255);
    minSecStrip.setPixelColor(minute*2+3, 0, 0, 0);
    minSecColor++;
    if(minSecColor>255) minSecColor = 0;
    minSecStrip.show();

    for(int i=0; i<hourStrip.numPixels(); i++) {
      hourStrip.setPixelColor(i, Wheel((hourColor) & 255));
    }
    hourStrip.setPixelColor((hour*hourStrip.numPixels()/12), 0, 0, 0);
    hourStrip.setPixelColor((hour*hourStrip.numPixels()/12)+1, 200, 200, 200);
    hourStrip.setPixelColor((hour*hourStrip.numPixels()/12)+2, 200, 200, 200);
    hourStrip.setPixelColor((hour*hourStrip.numPixels()/12)+3, 200, 200, 200);
    hourStrip.setPixelColor((hour*hourStrip.numPixels()/12)+4, 200, 200, 200);
    hourStrip.setPixelColor((hour*hourStrip.numPixels()/12)+5, 0, 0, 0);
    hourColor--;
    if(hourColor==0) hourColor = 256;
    hourStrip.show();
  }
}


// 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) {
  if(WheelPos < 85) {
   return hourStrip.Color(WheelPos * 3, 255 - WheelPos * 3, 0);
  } else if(WheelPos < 170) {
   WheelPos -= 85;
   return hourStrip.Color(255 - WheelPos * 3, 0, WheelPos * 3);
  } else {
   WheelPos -= 170;
   return hourStrip.Color(0, WheelPos * 3, 255 - WheelPos * 3);
  }
}