DESIGN AND DEVELOPMENT OF AN INTELLIGENT ADJUSTABLE TIMER SYSTEM

Time management is a very important factor not only in person’s life but also in every system or organization. The Electronic Timers are used in industries, street light control, household appliances and many other applications to control the operation at specified time interval of repetitive nature. The available timer systems have limited timer modes, also they require continuous power supply for their operation, and also they are suitable only for specific applications. This paper focuses on the design and development of an Intelligent Adjustable Automatic Alarm System which will be useful in schools, colleges, offices, and industries to sound a siren at preset time. The proposed system is very advantageous for time management, and it helps making more systematic and disciplined environment. The alarm system presented here uses microcontroller, real time clock ic, memory ic as main programmable devices. Also it consists of matrix keypad and LCD for user interface with the system. The complete system is designed and implemented to achieve desired result.