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Articles by M. Shahjamal
Total Records ( 1 ) for M. Shahjamal
  Kh. Asaduzzaman , M. Nazrul Islam , M. Shahjamal and Mahbubul Hoq
  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.
 
 
 
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