two. Features:
Bluetooth protocol: Bluetooth Specification V4.2 BLE, send and receive no byte restrictions, have far more than traditional Bluetooth
Of the distance of communication
Operating frequency: 2.4GHz ISM band
Modulation: GFSK (Gaussian Frequency Shift Keying)
Sensitivity: -84dBm at 0.1% BER
Security features: Authentication and encryption
Support services: Central & Peripheral UUID FFE0, FFE1, FFE2 (FFE0 for service UUID, FFE1 for read data channel, FFE2 for write data channel)
Power consumption: low power mode: standby current 200-270uA, transmission 1mA.
Normal operating mode: standby 4mA, transmission 4.17mA.
Power supply: + 3.3VDC 50mA
Dimensions: 18mm x 14.5mm x 2mm
Bluetooth certification: BQB ROHS REACH
Transmission distance: 10-12 meters
Transfer rate: This module sends up to the mobile phone data can send up to 280 bytes each time, such as more than send the packet (such as a transmission of more than 280 bytes, the module will crash).
three. Application areas:
The module is mainly used for short-range data wireless transmission. Can be easily connected with the PC's Bluetooth device, you can also communicate with the smart phone data. To avoid tedious cable connection, can directly replace the serial line.
Bluetooth wireless data transfer;
POS system, wireless keyboard, mouse;
wireless data transmission; banking system;
building automation, security, room equipment, wireless monitoring, access control systems;
smart home, industrial control;
vehicle testing equipment;
Bluetooth joystick, Bluetooth game handle
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