how to display real time clock in the LCD using PIC

[juncarl143]

hi there i need advice or help how can i display the current time to a LCD using PIC16f877. is it possible to make it without any supporting IC interfaced to PIC?

 

[VVV]

Yes, it is possible. Take a look at this appnote https://ww1.microchip.com/downloads/en/AppNotes/00563c.pdf

If you have an LCD based on the HD44780 or similar, it will be much easier. Are you really considering driving the LCD directly with the PIC?

 

[juncarl143]

thanks for the help. my plan is to write in data eeprom the hour and time and updated every 60 seconds, the minute will increment by one. thats what i wanted to do now for our project. pls any help or advice?

 

[VVV]

Writing that many times a day to the EEPROM is not recommended. The EEPROM is rated for 1 million erase/write cycles. If you write to it every minute, that would be 1440 times a day, so you could expect the EEPROM to last for less than 2 years.

Why do you want to do it that way? Can you use a battery backup, or something?

The original question remains: what will drive the actual LCD? The PIC or some other IC?

 

[juncarl143]

thanks for the info.. in our project its not really needed to diplay the real time. we just need to retrieve a real time data in whatsoever way in such that it could be printed by a dot matrix printer. we used a pic16f877a. because we need to print the real time upon accessing our project. sort of a receipt.