Bluetooth is a wireless technology standard for exchanging data over short distances using short-wavelength UHF radio waves. It allows devices such as phones, laptops, printers, headphones, and others to connect to each other and exchange information without wires. The Bluetooth protocol stack includes layers like the baseband layer for link management and frequency hopping, L2CAP for data transmission, and various profiles for different applications.

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10. Protocol Stack Bluetooth Controller Bluetooth Host

16. Bluetooth Topology PICONET Two or more Bluetooth devices using the same channel form a piconet . There is one master and one or more slave (s) in each piconet SCATTERNET If multiple piconets cover the same area, a device can participate in two or more overlaying piconets by applying time multiplexing.

17. Bluetooth Channel (Cont..)

18. Bluetooth Clock and Bluetooth Device Address LPO Worst Case accuracy +- 250ppm Standard Worst Case accuracy +- 20ppm Obtained from the IEEE Registration Authority.

21. Imagination Action Joy