Abstract:
in this project we set the interval time and buzzer time through keypad. An internal clock will run inside the controller which will turn on the buzzer at the desired time periods. PC interface is provided so as to send the data to the computer and viz versa
I need the Proteus and the Hex file for this project capable of simulating in Proteus 8 professional please. mail it to me at 120018608[at]campus.ium.edu.na
Automatic Bell System for Institutions or Schools
Usually, conventional methods require a pawn or bell operator to assist and operate the bell system for each period and interval in schools and institutions. Such systems need sufficient human effort to do so, and require an advance to be automated - those that minimize human effort. As the bell system is important in schools, homes and industries, the automatic operation of this instrument must be performed with a precise time controller in an economical manner.
This automatic school bell timer system is designed using a basic 8051 microcontroller to manage time intervals. The read / write memory is also required to store bell timings, but for less number of times this memory is not required. This system also provides the display of seven-segment timing information for a user interface purpose.
This system uses a power supply block to drive all components of the circuit, an 8051 microcontroller to control and manage bell timings, a real-time clock for precise timing operation, a matrix keyboard to enter and configure the timing Bell and a segment of seven segments Display to show the time and information. The operation of this system can be easily understood from the above block diagram, in which the times entered on the keyboard are stored in the microcontroller, which are responsible for operating the bell based on the microcontroller program.