Introduction - If you have any usage issues, please Google them yourself
System circuit by the clock module, main control module, the keyboard and display module, power supply module. Real-time clock uses DS1302 achieve the year, month, day, hour, minute, second acquisition and alarm clock function, time and other information of the week. The results of this design the circuit structure is very simple, the various requirements can be guaranteed and the stability of the system circuit is improved. At the same time, it uses C language function of each module of the system can be programmed to achieve, and the system has a keyboard control function to facilitate checking the time.