The project shows you how to build a combination lock for your home door using PIC16F84 MCU and electro-magnetic lock. A 4×4 keypad, located outside the door, is used to enter key combination. The master combination will open the door, as well as allow programming of up to four transient combinations, the illumination duration, [...]
This security system project is a stand alone device that allows access to registered users identified by their magnetic cards.(For this project, “access” is represented by a lit LED, showing how the system could be used to control an external locking mechanism.)
Security System
Project Firmware, Schematic and Documentation
cornell.edu
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