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Mastering Arduino by Jon Hoffman

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Network topology

The topology of a Bluetooth Classic piconet is very similar to the topology of a Bluetooth LE network where one device acts as a master and the other devices act as slaves to the master. In a Bluetooth Classic piconet, one master can have up to seven slaves for a total of eight devices in the piconet. The following diagram shows a Bluetooth classic piconet:

Piconets can interact with other piconets to form what is known as scatternets. A scatternet is one where the master of one piconet acts as a slave in another piconet. This does allow devices in one piconet to share data with devices in other piconets; however, this does ...

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