Gute Datenrate, kleine Distanz - bis 100m

Arbeitet in 2.4 GHz Range.

Datenrate von BLE

Bis 1 mBit/s, neben 250 kBit/s

Mehr Range == Weniger Datenrate

Wie viele Geräte sich gleichzeitig über BLE verbinden können

In der Theorie viele, im Praxis (in den heutigen Standarden) etwa sieben Stück

BLE Client-Server

Clients: request data Servers: response with data on request

In my case phone is a Client and Mi Band is a Server

BLE Arbeitsweise

• Scan for the device
• Connect to the device
• Read services and characteristics you wish to use
• Read and write characteristics

Verbindungsorientierte und verbindungslose BLE