What I am trying to achieve is to have a matrix clock with a scrolling display of time and date for a set period that is then cleared from the display and only the time will then be displayed for a set period then it reverts back to a scrolling display etc.
When the display is in just the time mode how to get the seconds to tick over like a normal clock.
The program at the moment scrolls the time and date twice then shows only the time then starts to scroll again etc.
I am using 8xMax7219, DS1307 RTC, and UNO R3.
Any help in setting the periods of scrolling and the period of time with seconds changing would be of great assistance.
Program code is enclosed.
[/#include <SPI.h>
#include <Wire.h>
#include "RTClib.h"
#include <Adafruit_GFX.h>
#include <Max72xxPanel.h>
/* Max7219 settings */
int pinCS = 10; // Attach CS to this pin, DIN to MOSI and CLK to SCK (cf http://arduino.cc/en/Reference/SPI )
int numberOfHorizontalDisplays = 5;
int numberOfVerticalDisplays = 1;
Max72xxPanel matrix = Max72xxPanel(pinCS, numberOfHorizontalDisplays, numberOfVerticalDisplays);
RTC_DS1307 rtc;
unsigned char a;
unsigned char j;
/*Port Definitions*/
int Max7219_pinCLK = 13;
int Max7219_pinCS = 10;
int Max7219_pinDIN = 11;
unsigned char disp1[38][8]={
{0x3C,0x42,0x42,0x42,0x42,0x42,0x42,0x3C},//0
{0x10,0x18,0x14,0x10,0x10,0x10,0x10,0x10},//1
{0x7E,0x2,0x2,0x7E,0x40,0x40,0x40,0x7E},//2
{0x3E,0x2,0x2,0x3E,0x2,0x2,0x3E,0x0},//3
{0x8,0x18,0x28,0x48,0xFE,0x8,0x8,0x8},//4
{0x3C,0x20,0x20,0x3C,0x4,0x4,0x3C,0x0},//5
{0x3C,0x20,0x20,0x3C,0x24,0x24,0x3C,0x0},//6
{0x3E,0x22,0x4,0x8,0x8,0x8,0x8,0x8},//7
{0x0,0x3E,0x22,0x22,0x3E,0x22,0x22,0x3E},//8
{0x3E,0x22,0x22,0x3E,0x2,0x2,0x2,0x3E},//9
{0x8,0x14,0x22,0x3E,0x22,0x22,0x22,0x22},//A
{0x3C,0x22,0x22,0x3E,0x22,0x22,0x3C,0x0},//B
{0x3C,0x40,0x40,0x40,0x40,0x40,0x3C,0x0},//C
{0x7C,0x42,0x42,0x42,0x42,0x42,0x7C,0x0},//D
{0x7C,0x40,0x40,0x7C,0x40,0x40,0x40,0x7C},//E
{0x7C,0x40,0x40,0x7C,0x40,0x40,0x40,0x40},//F
{0x3C,0x40,0x40,0x40,0x40,0x44,0x44,0x3C},//G
{0x44,0x44,0x44,0x7C,0x44,0x44,0x44,0x44},//H
{0x7C,0x10,0x10,0x10,0x10,0x10,0x10,0x7C},//I
{0x3C,0x8,0x8,0x8,0x8,0x8,0x48,0x30},//J
{0x0,0x24,0x28,0x30,0x20,0x30,0x28,0x24},//K
{0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x7C},//L
{0x81,0xC3,0xA5,0x99,0x81,0x81,0x81,0x81},//M
{0x0,0x42,0x62,0x52,0x4A,0x46,0x42,0x0},//N
{0x3C,0x42,0x42,0x42,0x42,0x42,0x42,0x3C},//O
{0x3C,0x22,0x22,0x22,0x3C,0x20,0x20,0x20},//P
{0x1C,0x22,0x22,0x22,0x22,0x26,0x22,0x1D},//Q
{0x3C,0x22,0x22,0x22,0x3C,0x24,0x22,0x21},//R
{0x0,0x1E,0x20,0x20,0x3E,0x2,0x2,0x3C},//S
{0x0,0x3E,0x8,0x8,0x8,0x8,0x8,0x8},//T
{0x42,0x42,0x42,0x42,0x42,0x42,0x22,0x1C},//U
{0x42,0x42,0x42,0x42,0x42,0x42,0x24,0x18},//V
{0x0,0x49,0x49,0x49,0x49,0x2A,0x1C,0x0},//W
{0x0,0x41,0x22,0x14,0x8,0x14,0x22,0x41},//X
{0x41,0x22,0x14,0x8,0x8,0x8,0x8,0x8},//Y
{0x0,0x7F,0x2,0x4,0x8,0x10,0x20,0x7F},//Z
};
/* Set up Scrolling Time and Date settings */
String tape ="99:99:99 99/99/9999";
int tape_length = 24;
int wait = 50; // In milliseconds
int spacer = 1;
int width = 5 + spacer; // The font width is 5 pixels
int i = 0;
/* Set up display of Time only */
void Write_Max7219_byte(unsigned char DATA)
{
unsigned char a;
digitalWrite(Max7219_pinCS,LOW);
for(a=8;a>=1;a--)
{
digitalWrite(Max7219_pinCLK,LOW);
digitalWrite(Max7219_pinDIN,DATA&0x80);// Extracting a bit data
DATA = DATA<<1;
digitalWrite(Max7219_pinCLK,HIGH);
}
}
void Write_Max7219(unsigned char address,unsigned char dat)
{
digitalWrite(Max7219_pinCS,LOW);
Write_Max7219_byte(address); //address，code of LED
Write_Max7219_byte(dat); //data，figure on LED
digitalWrite(Max7219_pinCS,HIGH);
}
void Init_MAX7219(void)
{
Write_Max7219(0x09, 0x00); //decoding ：BCD
Write_Max7219(0x0a, 0x03); //brightness
Write_Max7219(0x0b, 0x07); //scanlimit；8 LEDs
Write_Max7219(0x0c, 0x01); //power-down mode：0，normal mode：1
Write_Max7219(0x0f, 0x00); //test display：1；EOT，display：0
}
void setup()
{
/*Init Max7219*/
pinMode(Max7219_pinCLK,OUTPUT);
pinMode(Max7219_pinCS,OUTPUT);
pinMode(Max7219_pinDIN,OUTPUT);
delay(50);
Init_MAX7219();
/* Check if RTC running and set intensity of display */
matrix.setIntensity(0); // Use a value between 0 and 15 for brightness
#ifdef AVR
Wire.begin();
#else
Wire1.begin(); // Shield I2C pins connect to alt I2C bus on Arduino Due
#endif
rtc.begin();
if (! rtc.isrunning()) {
matrix.print("RTC is NOT running!");
// following line sets the RTC to the date & time this sketch was compiled
rtc.adjust(DateTime(__DATE__, __TIME__));
}
}
void loop() {
DateTime now = rtc.now();
/* Scrolling to show the date and time */
tape[0] = '0' + ((now.hour())/10); // I assume you want the time first
tape[1] = '0' + ((now.hour())%10);
tape[3] = '0' + ((now.minute())/10);
tape[4] = '0' + ((now.minute())%10);
tape[6] = '0' + ((now.second())/10);
tape[7] = '0' + ((now.second())%10);
tape[12] = '0' + ((now.day())/10);
tape[13] = '0' + ((now.day())%10);
tape[15] = '0' + ((now.month())/10);
tape[16] = '0' + ((now.month())%10);
tape[18] = '0' + ((now.year())/1000);
tape[19] = '0' + (((now.year())/100)%10);
tape[20] = '0' + (((now.year())/10)%10);
tape[21] = '0' + ((now.year())%10);
for ( int i = 0 ; i < width * tape_length + matrix.width() - 1 - spacer; i++ ) {
matrix.fillScreen(LOW);
int letter = i / width;
int x = (matrix.width() - 1) - i % width;
int y = (matrix.height() - 8) / 2; // center the text vertically
while ( x + width - spacer >= 0 && letter >= 0 ) {
if ( letter < tape_length ) {
matrix.drawChar(x, y, tape[letter], HIGH, LOW, 1);
}
letter--;
x -= width;
}
matrix.write(); // Send bitmap to display
delay(wait);
}
/* Print time only */
matrix.setPosition(0,0,0);
matrix.print(now.hour(),DEC);
matrix.print(':');
matrix.print(now.minute(),DEC);
matrix.print(':');
matrix.print(now.second(),DEC);
matrix.write();
for(j=0;j<38;j++)
{
for(a=1;a<9;a++)
Write_Max7219(a,disp1[j][a-1]);
delay(200);
}
}code]