Different LCD for "Digital Clock with Alarm Using DS1307"
Discussion in "Project Addition or Changes" started by kanth_sourabh Feb 14, 2012.
Wed Feb 22 2012, 02:56 am
its all your choice.. PCF8563 has more functions than DS1307... I am not sure about the cost. check both datasheets and use the one suits your requirement.
[Topic moved to Project Addition or Changes Forum]
[Topic moved to Project Addition or Changes Forum]
Wed Feb 22 2012, 04:11 am
Can you help in writing a code for the master and slave MC.kanth_sourabh
I will give advice if I can, but not write chunks of code.
Please tell me.. DS1307 is better or PCF8563 is better?kanth_sourabh
You can use either for what you are doing,
or neither, if you track the time using the internal timers.
Wed Feb 22 2012, 04:16 pm
Thank you soo much for all your support. I have decided that to make 5 time zone clock with single source, I will use single RTC (PCF8563) and a single microcontroller. Will attach 5 different clocks with the single microcontroller, will make one clock as master clock. Will add/sub the 'time difference' w.r.t. the master clock and will get it displayed in the rest of the clocks accordingly.
Now i'll only have to write a suitable code the microcontroller so that the entire setup works properly.
Will let you all know know whether it works or not.
Now i'll only have to write a suitable code the microcontroller so that the entire setup works properly.
Will let you all know know whether it works or not.
Sun Mar 04 2012, 02:25 am
best way to deal with time is to use linux timestamp method so it becomes easy to add/subtract time according to selected timezone. You can take reference from Minix source code for time related functions.
set your base clock/RTC to UTC time and then as per user request convert timezone afterwards based on UTC time.
set your base clock/RTC to UTC time and then as per user request convert timezone afterwards based on UTC time.
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