//3 switch digital clock using 8051,RTC,LCD; //extra 1 switch can be added to make total of 4 switches. //this extra switch is for led. //sine we were done this project completely in software we just neglected this feature
//at89c51,ds1307,lm016l,switch //keil_v5 C51,proteus 8 professional
//i2c protocol is used to communicate between rtc and 8051; //check comments in source code for furthem logic info. //12 hour format upgradation is pending(17/12/2020)