AWOL:
So how exactly do i split 56 (minutes) into 6 for ones
and then 5 for tens?
The usual way. by dividing by ten.
Unless the value is in BCD, in which case, divide by 16.
ok thanks for taking the time to post but i think you over simplified it.
after 2 hour i finally figured out a formula that would separate time 12:56 in to (1-:--)(-2:--)(--:5-)(--:-6)
so the what i created was
Ten = minute / 10; That gave me the (--:5-)
val = minute / 10;
One = minute - (val*10); That gave me the (--:-6)
#include <LiquidCrystal.h>
#include "Wire.h"
#define DS1307_I2C_ADDRESS 0x68
LiquidCrystal lcd(12, 11, 5, 4, 3, 2);
int Anode1 = 1;
int Anode2 = 2;
int Anode3 = 3;
int Anode4 = 4;
int latchPin = 8;
//Pin connected to SH_CP of 74HC595
int clockPin = 12;
////Pin connected to DS of 74HC595
int dataPin = 11;
int One;
int Ten;
int Hundred;
int Thousand;
int Aval;
int Bval;
// Convert normal decimal numbers to binary coded decimal
byte decToBcd(byte val)
{
return ( (val/10*16) + (val%10) );
}
// Convert binary coded decimal to normal decimal numbers
byte bcdToDec(byte val)
{
return ( (val/16*10) + (val%16) );
}
// Stops the DS1307, but it has the side effect of setting seconds to 0
// Probably only want to use this for testing
/*void stopDs1307()
{
Wire.beginTransmission(DS1307_I2C_ADDRESS);
Wire.send(0);
Wire.send(0x80);
Wire.endTransmission();
}*/
// 1) Sets the date and time on the ds1307
// 2) Starts the clock
// 3) Sets hour mode to 24 hour clock
// Assumes you're passing in valid numbers
void setDateDs1307(byte second, // 0-59
byte minute, // 0-59
byte hour, // 1-23
byte dayOfWeek, // 1-7
byte dayOfMonth, // 1-28/29/30/31
byte month, // 1-12
byte year) // 0-99
{
Wire.beginTransmission(DS1307_I2C_ADDRESS);
Wire.send(0);
Wire.send(decToBcd(second)); // 0 to bit 7 starts the clock
Wire.send(decToBcd(minute));
Wire.send(decToBcd(hour)); // If you want 12 hour am/pm you need to set
// bit 6 (also need to change readDateDs1307)
Wire.send(decToBcd(dayOfWeek));
Wire.send(decToBcd(dayOfMonth));
Wire.send(decToBcd(month));
Wire.send(decToBcd(year));
Wire.endTransmission();
}
// Gets the date and time from the ds1307
void getDateDs1307(byte *second,
byte *minute,
byte *hour,
byte *dayOfWeek,
byte *dayOfMonth,
byte *month,
byte *year)
{
// Reset the register pointer
Wire.beginTransmission(DS1307_I2C_ADDRESS);
Wire.send(0);
Wire.endTransmission();
Wire.requestFrom(DS1307_I2C_ADDRESS, 7);
// A few of these need masks because certain bits are control bits
*second = bcdToDec(Wire.receive() & 0x7f);
*minute = bcdToDec(Wire.receive());
*hour = bcdToDec(Wire.receive() & 0x3f); // Need to change this if 12 hour am/pm
*dayOfWeek = bcdToDec(Wire.receive());
*dayOfMonth = bcdToDec(Wire.receive());
*month = bcdToDec(Wire.receive());
*year = bcdToDec(Wire.receive());
}
void setup()
{
byte second, minute, hour, dayOfWeek, dayOfMonth, month, year;
Wire.begin();
Serial.begin(9600);
// Change these values to what you want to set your clock to.
// You probably only want to set your clock once and then remove
// the setDateDs1307 call.0000000000000000000
second = 0;
minute = 0;
hour = 0;
dayOfWeek = 0;
dayOfMonth = 0;
month = 0;
year = 0;
pinMode(latchPin, OUTPUT);
pinMode(clockPin, OUTPUT);
pinMode(dataPin, OUTPUT);
pinMode(Anode1, OUTPUT);
pinMode(Anode2, OUTPUT);
pinMode(Anode3, OUTPUT);
pinMode(Anode4, OUTPUT);
}
void loop()
{
// print the number of seconds since reset:
byte second, minute, hour, dayOfWeek, dayOfMonth, month, year;
getDateDs1307(&second, &minute, &hour, &dayOfWeek, &dayOfMonth, &month, &year);
Serial.print(hour, DEC);
Serial.print(":");
Serial.print(minute, DEC);
Serial.print(":");
Serial.print(second, DEC);
Serial.print(" ");
Serial.print(month, DEC);
Serial.print("/");
Serial.print(dayOfMonth, DEC);
Serial.print("/");
Serial.print(year, DEC);
Serial.print(" Day_of_week:");
Serial.print(dayOfWeek, DEC);
Serial.print(" ");
Serial.print(Thousand, DEC);
Serial.print(Hundred, DEC);
Serial.print(Ten, DEC);
Serial.print(One, DEC);
Serial.print(" ");
Serial.println(One, BIN);
Thousand = hour / 10;
Aval = hour / 10;
Hundred = hour - (Aval*10);
Ten = minute / 10;
Bval = minute / 10;
One = minute - (Bval*10);
digitalWrite(latchPin, LOW);
shiftOut(dataPin, clockPin, MSBFIRST, Thousand);
digitalWrite(latchPin, HIGH);
digitalWrite(Anode1, HIGH);
delay(1);
digitalWrite(Anode1, LOW);
digitalWrite(latchPin, LOW);
shiftOut(dataPin, clockPin, MSBFIRST, Hundred);
digitalWrite(latchPin, HIGH);
digitalWrite(Anode2, HIGH);
delay(1);
digitalWrite(Anode2, LOW);
digitalWrite(latchPin, LOW);
shiftOut(dataPin, clockPin, MSBFIRST, Ten);
digitalWrite(latchPin, HIGH);
digitalWrite(Anode3, HIGH);
delay(1);
digitalWrite(Anode3, LOW);
digitalWrite(latchPin, LOW);
shiftOut(dataPin, clockPin, MSBFIRST, One);
digitalWrite(latchPin, HIGH);
digitalWrite(Anode4, HIGH);
delay(1);
digitalWrite(Anode4, LOW);
}
