Bluetooth Essentials for Programmers by Albert S. Huang

By Albert S. Huang

This booklet offers an creation to Bluetooth programming, with a particular specialize in constructing actual code. The authors talk about the key ideas and methods inquisitive about Bluetooth programming, with exact emphasis on how they relate to different networking applied sciences. they supply particular descriptions and examples for developing functions in a couple of programming languages and environments together with Python, C, Java, GNU/Linux, home windows XP, Symbian sequence 60, and Mac OS X. No earlier event with Bluetooth is thought, and the cloth is acceptable for an individual with a few programming historical past. The authors position specified emphasis at the crucial innovations and methods of Bluetooth programming, beginning easily and permitting the reader to speedy grasp the elemental techniques sooner than addressing complicated good points.

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Dial-Up Networking: Allows devices to use cellular phones (or other Bluetooth devices connected to a phone line) as modems to place phone calls and connect to the Internet. Hands-Free Audio: Allows Bluetooth headsets to connect to other Bluetooth devices such as cellular phones or computers and transmit voicequality audio. This profile uses SCO connections. Advanced Audio Distribution: Allows Bluetooth headsets to connect to other Bluetooth devices and transmit high-quality audio, such as MP3s and other music.

The last bit of Bluetooth networking terminology here is the scatternet. It’s theoretically possible for a single Bluetooth device to participate in more than one piconet. In practice, a lot of devices don’t support this ability, but it is possible. When this happens, the two different piconets are collectively called a scatternet. Despite the impressive name, don’t get too excited because scatternets don’t really do a whole lot. In fact, they don’t do anything at all. In order for two devices to communicate, they must be a part of the same piconet.

Once a socket is bound, a call to the method listen puts the socket into listening mode to make it ready to accept incoming connections with the accept method: sock . l i s t e n ( backlog ) The method listen requires a single parameter, backlog, which will almost always be set to 1. In between the time a program calls listen and accept (or between two calls to accept), the operating system may accept an incoming connection and hold it in a pending state until the server application calls accept.

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