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Wireless Lock and Key
Partner Project
2015
This electrical design project strengthened my understanding and skills of working with circuits, coding, and wireless electronics. With the constant increase of mechanical designs integrating digital electronics, having a foundational understanding of electrical engineering is imperative for a mechanical engineer.
Goals:
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Demonstrate basic function of the electrical components for a wireless key security system
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Develop lock and key:
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Key has 4 bit input code (2 LCD display numbers)
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Lock indicates if code is correct (green LED) or incorrect (red LED)
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Constant communication between lock and key
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Implements: Arduinos, RF transmitters, 7400 chips, and 7-segment displays
Block Diagram - Design
Arduinos
RF Chip
RF Chip
Breadboards and Circuitry
Lock
Key
LCD Display
LCD Display
LED
LED
Operation of Wireless Lock and Key
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