hola este ejemplo sale en el web del producto i lo kiero connectar con un arduino mega con el sholud atmega connecta i listo pero no ve en el programa la entrada que utiliza alguien puede auyudarme? no veo donde se configura i indica las entradas que usa
#include "Wire.h"
#define DS1307_I2C_ADDRESS 0x68 // This is the I2C address
// Global Variables
int command = 0; // This is the command char, in ascii form, sent from the serial port
int i;
long previousMillis = 0; // will store last time Temp was updated
byte second, minute, hour, dayOfWeek, dayOfMonth, month, year;
byte test;
// 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) );
}
// 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, Probably need to put in checks for valid numbers.
void setDateDs1307()
{
second = (byte) ((Serial.read() - 48) * 10 + (Serial.read() - 48)); // Use of (byte) type casting and ascii math to achieve result.
minute = (byte) ((Serial.read() - 48) *10 + (Serial.read() - 48));
hour = (byte) ((Serial.read() - 48) *10 + (Serial.read() - 48));
dayOfWeek = (byte) (Serial.read() - 48);
dayOfMonth = (byte) ((Serial.read() - 48) *10 + (Serial.read() - 48));
month = (byte) ((Serial.read() - 48) *10 + (Serial.read() - 48));
year= (byte) ((Serial.read() - 48) *10 + (Serial.read() - 48));
Wire.beginTransmission(DS1307_I2C_ADDRESS);
Wire.write(0x00);
Wire.write(decToBcd(second)); // 0 to bit 7 starts the clock
Wire.write(decToBcd(minute));
Wire.write(decToBcd(hour)); // If you want 12 hour am/pm you need to set
// bit 6 (also need to change readDateDs1307)
Wire.write(decToBcd(dayOfWeek));
Wire.write(decToBcd(dayOfMonth));
Wire.write(decToBcd(month));
Wire.write(decToBcd(year));
Wire.endTransmission();
}
// Gets the date and time from the ds1307 and prints result
void getDateDs1307()
{
// Reset the register pointer
Wire.beginTransmission(DS1307_I2C_ADDRESS);
Wire.write(0x00);
Wire.endTransmission();
Wire.requestFrom(DS1307_I2C_ADDRESS, 7);
// A few of these need masks because certain bits are control bits
second = bcdToDec(Wire.read() & 0x7f);
minute = bcdToDec(Wire.read());
hour = bcdToDec(Wire.read() & 0x3f); // Need to change this if 12 hour am/pm
dayOfWeek = bcdToDec(Wire.read());
dayOfMonth = bcdToDec(Wire.read());
month = bcdToDec(Wire.read());
year = bcdToDec(Wire.read());
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(" ");
}
void setup() {
Wire.begin();
Serial.begin(57600);
}
void loop() {
delay(2000);
/*T(00-59)(00-59)(00-23)(1-7)(01-31)(01-12)(00-99) - T(sec)(min)(hour)(dayOfWeek)(dayOfMonth)(month)(year) - T Sets the date of the RTC DS1307 Chip.
Example to set the time for 02-DEC-10 @ 19:57:11 for the 3 day of the week, write this command - T1157193021210
*/
if (Serial.available())
{ // Look for char in serial que and process if found
command = Serial.read();
if (command == 84) { //If command = "T" Set Date
setDateDs1307();
getDateDs1307();
Serial.println(" ");
}
while(1)
{
getDateDs1307();
delay(500);
}
}
}