I am using DS1307 mini board to keep date and time and display it on my LCD screen.
Yesterday, after many reboots of arduino board, the date and time were correct. Then arduino board power off... sleeping.
Today, I power on my arduino+LCD+DS1307 mountage. All data from DS1307 are correct out of "DAY OF WEEK".
RTC.get(DS1307_DOW, false) returns me 7 and I attempt for 0 to 6 int value.
Is anyone has had the same problem ?