Bluetooth
Héctor Chocobar Torrejón
Software Engineer | Professor | Senior Mentor | Fullstack Developer | Python | React | Data Science enthusiast
Bluetooth is a standard technology which provides wireless communication, using radio frequencies, between computer devices located about 10 meters apart.
Bluetooth Specifications and Operations
A?bluetooth?specification is divided into three parts: the core system,?profiles?and higher layer?communication protocols. During a typical bluetooth operation, a?radio frequency?is shared by a group of devices that are synchronized to a common clock and frequency hopping pattern.
One device is known as the?primary device?and provides the synchronization reference. The other devices are known as?secondary devices. A group of devices synchronized in this fashion from a?piconet. Additionally, a device in a piconet can be part of another piconet (as a primary device or secondary device). This kind of overlap is known as a?scatternet.
Vocabulary
Bluetooth
Bluetooth is short-range wireless communication technology that allows devices to exchange data (pictures, music, contacts…) or voice over a short distance.
Piconet
A piconet is a set of devices connected wirelessly in an ad-hoc manner. A piconet consists on one primary device and up to seven secondary devices.
Scatternet
A scatternet is a bluetooth network consisting of more than one piconet that supports communications between more than eight devices. A scatternet provides the way to extend the coverage of a piconet.
领英推荐
Primary Device
A primary devices is a bluetooth devices which coordinates communication among the secondary devices in the piconet. It has the ability to initiate a connection with a secondary; once connected, information can flow in both ways.
Secondary Device
A secondary device is a bluetooth device which can transmit to and receive from the primary device in a piconet. Secondary devices can be inactive and the primary device can change their status to active at any time.
Radio Frequency
A radio frequency is a band of frequencies in the range 10 kilohertz to 300,000 megahertz. Radio frequencies can be used for broadcasting and radio communications.
Communication Protocol
A communication Protocol is a set of rules of communication that allows two or more devices to exchange data in a communication system.
Profile
A profile is an additional protocol or specification regarding an aspect of Bluetooth communication between devices. It contains both the application and the Bluetooth features needed to implement it.