International Journal of Microelectronics and Digital integrated circuits
Design of reliable electronic door lock system on PCB using Ki-CAD
Abstract
This paper deals with the design of a PCB based electronic door lock system. An electronicdoor locking system is one which uses passwords, RFID tags and readers, fingerprints, etc.instead of the traditional key system. In my project, I made use of a numeric cipher to unlocka door. The door can be unlocked only by the people who are aware of the code. Thisincreases the security and safety by preventing unauthorized unlocking of the door, and it iscost effective too. The main components used in the circuit are dual JK flip-flops, ICregulators 7812 and 7805, IC timer 555 and a few other components for power supply and amotor for opening and closing of the door. Also, the identification code can be altered bymaking a few adjustments in the connections only. The system has a 4×5 numeric keypad onwhich one can type the code. When it matches with the predefined password, the door will getunlocked. To lock the door again one must press switch S5. I have developed this PCB systemusing the kiCad software.Keywords: electronic door lock, IC regulators, IC555, JK flip-flops, KI-CAD PCBReferences (8)
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