Development of a Microcontroller Based （基于单片机的发展）.pdfVIP

Development of a Microcontroller Based Automatic Combinational Lock System. * Comfort O. Bolajoko, M.Sc. and Adewale M. Folorunso, B.Sc. Department of Electronic and Computer Engineering, Lagos State University, Lagos, Nigeria. E-mail: comfortobolajoko@* walebb@ ABSTRACT Controller” suggests that the device might be used to control objects, processes or events. The work presented in this paper discusses the microcontroller based automatic combinational lock. The need for automatic combinational lock LITERATURE REVIEW AND THEORY has been on the increase in recent times. The system designed and constructed incorporates The work presented in this paper is a design and the use of a microcontroller. construction of a microcontroller based automatic combinational lock system. The functionality is A microcontroller based automatic combinational implemented in the software as an access control lock system is a lock system that can be used for system. The microcontroller is used to write in numerous applications in which access to a data values from the input device and interact particular target is to be restricted to a limited with the outside world. The system accepts the number of persons. It involves using four-digit codes supplied from the keypad placed