: Today is that the world of automation, micro controller and embedded system have made lot of thing automatic and
simple to use. Automation is used in homes, industries, commercial and academic sectors. During this work, a micro-controller
based Automatic college Bell is intended. This project takes over the task of ringing of the bell in colleges, schools and
industries. It replace the manual switching of the bell, this circuit uses an Atmega16 chip to schedule the school teaching and
break period and also exam period. The bell is automatically after we set the time. The necessity of an automatic college bell is
now a crucial things for accuracy and for time consuming purpose.
