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Hi all, I'm trying to make a clock using an lcd screen and an rtc. I am using a DS1390 rtc because I want to display milliseconds. I can read from the rtc and display the time on the lcd but i'm having trouble figuring out how to use buttons to set the time. What I tried sort of works, it...

I have a ds1391 rtc, a 28x2 and a serial lcd. I have a program that can read the time and show it on the lcd but I can't figure out how to set the time with some buttons. I want to have one button to advance the hours and another to advance the minutes. Can anyone help me with this?? Here is...