Bluetooth architecture defines two types of structure :
- Piconet
- Scatternet
1. Piconet
- Eight devices are connected in a Bluetooth network called as a piconet, so the piconet has up to eight active nodes
- One of them acts as a master and others act as slaves.
- In piconet communication between the primary and secondary can be one to one or one to many forms.
- All communication is done between master and slave. slave-slave or master-master communication is not possible
2. Scatternet
- A scatternet is formed when two more piconets connect through a bridge node.
- It is combining various piconet.
- In scattered addition to be seven active slaves, there can be up to 255 parked nodes in the net that can only respond to a beacon signal from the master.
- The slaves are also dumb devices that do the task that the master tells them to do.
- Mater controlling the clock and it is determining in which slave gets to communicate in which time slot.
- All the communication is between the master and slave and but not between the slaves.
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| Bluetooth architecture |