Bluetooth low energy is essential needed for wireless communication devices with coin battery that runs for many days close to 1 year.
New roles are introduced here
1. Advertuser - Advertisese the data without any intention to initiate connection to other device
2. Obeserver - Listens for advertising data
BLE operated in the same spectrum of 2.4Ghz, same as Legacy Buetooth
It uses 40 channels 2 Mhz bandwidth each
channel 36, 37,38 are advertising channels. Other channel are used for data transfer with active connection between devices.
After the connection is established, data is exchanged between devices at regular intervals called connection events. Between connection event devices can sleep, turning their radio off.
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Attribute Profile:
New roles are introduced here
1. Advertuser - Advertisese the data without any intention to initiate connection to other device
2. Obeserver - Listens for advertising data
BLE operated in the same spectrum of 2.4Ghz, same as Legacy Buetooth
It uses 40 channels 2 Mhz bandwidth each
channel 36, 37,38 are advertising channels. Other channel are used for data transfer with active connection between devices.
After the connection is established, data is exchanged between devices at regular intervals called connection events. Between connection event devices can sleep, turning their radio off.
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Attribute Profile:
