Scrollling Countdown

/*
 * TimeSerial.pde
 * example code illustrating Time library set through serial port messages.
 *
 * Messages consist of the letter T followed by ten digit time (as seconds since Jan 1 1970)
 * you can send the text on the next line using Serial Monitor to set the clock to noon Jan 1 2013
 T1357041600
 *
 * A Processing example sketch to automatically send the messages is included in the download
 * On Linux, you can use "date +T%s\n > /dev/ttyACM0" (UTC time zone)
 *
 *LEDText code by Aaron Liddiment
 *
 */

#include <TimeLib.h>
#include <FastLED.h>

#include <LEDMatrix.h>
#include <LEDText.h>
#include <FontMatrise.h>

#define LED_PIN        2
#define COLOR_ORDER    GRB
#define CHIPSET        WS2812B

#define MATRIX_WIDTH   92
#define MATRIX_HEIGHT  8
#define MATRIX_TYPE    HORIZONTAL_ZIGZAG_MATRIX

cLEDMatrix<MATRIX_WIDTH, MATRIX_HEIGHT, MATRIX_TYPE> leds;

cLEDText ScrollingMsg;

const unsigned long DEFAULT_TIME = 1357041600; // Jan 1 2013


const unsigned char TxtDemo1[] = { EFFECT_SCROLL_LEFT "                Countdown to Houston SUPERBOWL LI              "
                                };

const unsigned char TxtDemo2[] =    {hour()};



///////  test scroll

#define TIME_HEADER  "T"   // Header tag for serial time sync message
#define TIME_REQUEST  7    // ASCII bell character requests a time sync message





void printDigits(int digits){
  // utility function for digital clock display: prints preceding colon and leading 0
  Serial.print(":");
  if(digits < 10)
    Serial.print('0');
  Serial.print(digits);
}


void processSyncMessage() {
  unsigned long pctime;
//  const unsigned long DEFAULT_TIME = 1357041600; // Jan 1 2013

  if(Serial.find(TIME_HEADER)) {
     pctime = Serial.parseInt();
     if( pctime >= DEFAULT_TIME) { // check the integer is a valid time (greater than Jan 1 2013)
       setTime(pctime); // Sync Arduino clock to the time received on the serial port
     }
  }
}

time_t requestSync()
{
  Serial.write(TIME_REQUEST);
  return 0; // the time will be sent later in response to serial mesg
}



void digitalClockDisplay(){
  // digital clock display of the time
  Serial.print(hour());
  printDigits(minute());
  printDigits(second());
  Serial.print(" ");
  Serial.print(day());
  Serial.print(" ");
  Serial.print(month());
  Serial.print(" ");
  Serial.print(year());
  Serial.println();
}

void setup()  {

  Serial.begin(9600);
  while (!Serial) ; // Needed for Leonardo only
  pinMode(13, OUTPUT);
  setSyncProvider( requestSync);  //set function to call when sync required
  Serial.println("Waiting for sync message");


  //////////////////////////////////
  FastLED.addLeds<CHIPSET, LED_PIN, COLOR_ORDER>(leds[0], leds.Size());
  FastLED.setBrightness(64);
  FastLED.clear(true);
  delay(500);
  FastLED.showColor(CRGB::Red);
  delay(1000);
  FastLED.showColor(CRGB::Lime);
  delay(1000);
  FastLED.showColor(CRGB::Blue);
  delay(1000);
  FastLED.showColor(CRGB::White);
  delay(1000);
  FastLED.show();

  ScrollingMsg.SetFont(MatriseFontData);
  ScrollingMsg.Init(&leds, leds.Width(), ScrollingMsg.FontHeight() + 1, 0, 0);
  ScrollingMsg.SetText((unsigned char *)TxtDemo1, sizeof(TxtDemo1) - 1);
    ScrollingMsg.SetTextColrOptions(COLR_RGB | COLR_SINGLE, 0xff, 0xff, 0xff);
  ////////////////////////////////////


}

void loop(){
  if (Serial.available()) {
    processSyncMessage();
  }
  if (timeStatus()!= timeNotSet) {
    digitalClockDisplay();
  }
  if (timeStatus() == timeSet) {
    digitalWrite(13, HIGH); // LED on if synced
  } else {
    digitalWrite(13, LOW);  // LED off if needs refresh
  }

  if (ScrollingMsg.UpdateText() == -1)
    ScrollingMsg.SetText((unsigned char *)TxtDemo1, sizeof(TxtDemo1) - 1);
  else
    FastLED.show();
  delay(10);
}