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Year: 2010 | Volume: 9 | Issue: 4 | Page No.: 243 - 247
Kh. Asaduzzaman, M. Nazrul Islam, M. Shahjamal and Mahbubul Hoq
Abstract
A low-powered (4.5-5 V) security alarming system using infrared sensor and detector mechanism has been constructed and tested. An IR transmitter (IR diode) and a receiver (Photo transistor) have been used. The system is connected to a multidirectional buzzer/siren or any kind of sounder to alert people from any threat to make sure the property is completely protected.