Bluetooth based implementations for realising new consumer systems

Bluetooth based new wireless applications can increase comfort and security by automation of the tasks earlier controlled manually. In this paper advantages of low cost, low power and robustness of Bluetooth have been exploited to propose and implement two new consumer systems in the form of a garage door opening system and an electronic attendance record system. Both the applications provide luxury of automation along with promise of a better security system and will thus be a step towards realization of a smart building environment. Bluetooth based garage door opening system helps to overcome the inconvenience to move out of the car for unlocking the door and it provides the luxury of keyless opening which is electronically controlled just by enabling the authenticated Bluetooth slave device. The other Bluetooth based application proposed and implemented in this work relates to automatic monitoring and recording of attendance of employees in an organization. Both the applications proposed and implemented in this paper offer better security, higher flexibility and lesser complexity. In this paper the applications are developed based on Bluetooth link using host controller interface and asynchronous connection less (ACL) link.