DS1307 Problem [SOLVED]

[Simone Valmacco]

Hi Fernando,
sorry if I'm writing again, I do some research but I couldn't find any answer.
Everything now works fine expect the DS1307, I have the iTead lcd shield with the rtc on board, I've tested the connection (on pin 20,21)with your examples and I can find the RTC with 0x68 address and I can read time and date.
When I upload Ferduino, with PCF8575 disabled, I can't connect to the rtc (I already tried switch betwenn 20,21 and 18,19 pin with thw option at the beginning).
What can I try to do? thank you very much again!

[Fernando Garcia]

Hi!

Post a picture with good resolution to show how the TFT shield is assembled.

Best regards.

[Simone Valmacco]

Here is the photo, both the test code work correct...

[Fernando Garcia]

Try this code:

Code: Select all

#include <DS1307_HENNING.h>

// Init the DS1307
DS1307 rtc(20, 21);

void setup()
{
  // Set the clock to run-mode
  rtc.halt(false);
 
  // Setup Serial connection
  Serial.begin(9600);

  // The following lines can be commented out to use the values already stored in the DS1307
  rtc.setDOW(DOMINGO);        // Set Day-of-Week to SUNDAY
  rtc.setTime(12, 0, 0);     // Set the time to 12:00:00 (24hr format)
  rtc.setDate(3, 10, 2010);   // Set the date to October 3th, 2010
}

void loop()
{
  // Send Day-of-Week
  Serial.print(rtc.getDOWStr());
  Serial.print(" ");
 
  // Send date
  Serial.print(rtc.getDateStr());
  Serial.print(" -- ");

  // Send time
  Serial.println(rtc.getTimeStr());
 
  // Wait one second before repeating :)
  delay (1000);
}



If you are using italian version change this line:

Code: Select all

rtc.setDOW(DOMINGO);

To:

Code: Select all

rtc.setDOW(DOMENICA);

[Simone Valmacco]

It doesn't work.. I have tried with different language but with the same result... I have also do again the I2C bus scanner and found the device with 0x68 address...

[Fernando Garcia]

Friend, the language doesn't matter.

It should be bad contact.

The Henning's library is very sensitive.

Try redo the soldering on IC, resistors (25 - 27) and pins (20-21).

[Fernando Garcia]

Hi!

The problem was solved?

Best regards.

[Simone Valmacco]

Hi fernando, I've check the solder and find a bad joint between RTC and quartz, now everything works fine!
I have another question, in the web control dashboard it is possible to change the color of the led?
Thank you very much again!

[Fernando Garcia]

Hi!

Glad to hear.

As always is better search before ask.

http://ferduino.com/webcontrol/pages/ge ... colors.php

http://ferduino.com/webcontrol/pages/ge ... mnames.php

Best regards.