please i need the source code of automatic bell sir

This Standalone Hardware device (Computer not required) will ring COLLEGE bell at pre-scheduled times of day (all periods) on each day, of the week. Typically, COM time switch can be used to ring COLLEGE bells. It can also be used for other applications where you want a sound to play at preset times. The Device is for colleges, Educational Institutions, Industries and other business where the Bell timer plays a critical role in running the day. The device shows the real time clock during normal operation and a beep announces each bell. Different timings for weekdays, Saturday and Sunday (all days differently) is provided. The device can be set to ring up to 20 different bells per day with variable bell ring duration for each bell.


For more reference :

http://ijarcetwp-content/uploads/IJARCET-VOL-4-ISSUE-2-401-404.pdf