Firmware and hardware design of a novel door locking system

A low cost electronic system has been designed which can control different locking mechanisms. Hardware design of an electromechanical lock is also presented in this paper. Microchipreg PIC microcontroller is the brain controlling all the operations. Low operating power consumption, small circuit, non-volatile memory operation using on-chip Electrically Erasable Programmable Read Only Memory (EEPROM), flexible mechanical design and user friendly interface are the salient features of this security system.