Chengdu Ebyte Electronic Technology Co.,Ltd. E73-TBX User Manual
Copyright ©2012–2019
，
Chengdu Ebyte Electronic Technology Co.,Ltd.
20
Note to select of SWD interface.
3.
Basic knowledge of Bluetooth 4.X BLE
3.1.
What is BLE
BLE is the abbreviation of Bluetooth Low Energy. Also, BLE is called as Bluetooth Smart, which is a short-distance
transmission protocol with low-power and low-rate. It features low power consumption, easy to use, easy to connect
etc., which has been widely used in smart wear, smart home, wireless sensor networks and other fields.
3.2.
The difference between traditional Bluetooth and low-power Bluetooth
We call Bluetooth Classic as traditional Bluetooth. The main difference are below points:
1
）
Transmitting power
2
）
Communication distance
3
）
Data transmission rate
4
）
The traditional Bluetooth has CLASS1
、
CLASS2
、
CLASS3 version, which have higher transmission power,
longer communication distance. Some version can reaches 100m. With higher transmission rate, It’s suitable for audio
transmission. While the low-power Bluetooth has totally opposite features, such as the low transmission power from
-30-+4dBm, which is suitable for small data over short distances transmission.
