Important Points:
- Bluetooth is a short range wireless communication device
- Lower power consumption helps it's usage in Tablets/Mobiles
- IEEE 802.15.1 standard
- Uses frequency hopping spread spectrum to hop between 2400-2480MHz, in steps of 1MHz.
- Bluetooth is a packet based protocol
- Range up to 100m, range varies as per receiver sensitivity and geographical conditions
- With increase in range, speed gets reduced
- Created by Ericsson, Bluetooth has several versions and all of them are backward compatible
- No need of Line-of-sight is the biggest advantage
- Piconet: 1 master can communicate with 7 slaves in a piconet, all share master clock, slave can become a master also in communication process
- Scatternet: Connection of more than one piconets
- Operates in ISM band (2400-2480MHz)
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