A Microcontroller based Door Metal Detector with dual Power Supply, Alarm and LCD display
The design and construction of a micro-controller based metal detector for security and control is presented in this paper. Presently, metal detecting systems are becoming increasingly important for securing lives and properties. This metal detector can be attached to the door or main entrance of an organization, company, office, bank etc where it is desired. The metal detector is built in a way that there will be a metal sensor (colpitt oscillator) which will sense any electrically conducive metal or metallic object brought close to it. The sensor sends the signal to the Peripheral Interface Controller which processes the signal and turns on the driver (a dc motor) connected to the door off or on whereby the door opens or remains closed. Also present is an alarm and a Liquid Crystal Display (LCD) indicating the status of operation of the system. The power supply unit is dual in the sense that the circuit can be powered by electricity or battery and the battery charges when the circuit works with electricity.
Keywords: microcontroller, metal detector, Liquid crystal display, alarm
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ABOUT THE AUTHORS
Elizabeth T. Fabiyi
Has a B.Eng in Electrical and Electronics Engineering from the Federal University of Technology, Bauchi (ATBU), Nigeria and a masters degree in Microelectronics and Communication Engineering from the Northumbria University Newcastle, England. Her field of specialization includes Microelectronics and wireless communication.
Kelechi M. Amah
Graduated from the Igbinedion University Okada, Nigeria in 2011 with a B.Eng degree in Electrical and Electronics Engineering and has a masters degree in Microelectronics and Communication Engineering from the Northumbria University Newcastle, England.
Oluwayemi Fabiyi
Has a B.Eng and M.Eng in Electrical and Electronics Engineering from the he Federal University of Technology, Bauchi (ATBU), Nigeria and presently works with the Nigeria Energy Commission.
Elizabeth T. Fabiyi
Has a B.Eng in Electrical and Electronics Engineering from the Federal University of Technology, Bauchi (ATBU), Nigeria and a masters degree in Microelectronics and Communication Engineering from the Northumbria University Newcastle, England. Her field of specialization includes Microelectronics and wireless communication.
Kelechi M. Amah
Graduated from the Igbinedion University Okada, Nigeria in 2011 with a B.Eng degree in Electrical and Electronics Engineering and has a masters degree in Microelectronics and Communication Engineering from the Northumbria University Newcastle, England.
Oluwayemi Fabiyi
Has a B.Eng and M.Eng in Electrical and Electronics Engineering from the he Federal University of Technology, Bauchi (ATBU), Nigeria and presently works with the Nigeria Energy Commission.
