Serial Port Bluetooth V4.0 Transceiver Module (CC2541)

Description:

Bluetooth transmission serial port Bluetooth V4.0 transceiver module Wireless transmission and reception compatible with 3.3V / 5V

This is a CC2541 based low power data transmission Bluetooth module that complies with the Bluetooth specification V4.0 BLE. Combined with compact size, ultra-low power consumption, strong anti-interference and long communication distance, it is very suitable for short-distance wireless communication of Internet of Things.

The module has an onboard PCB antenna that can be used to communicate with other Bluetooth devices such as the Android system. With the AT command, the user can modify the baud rate, master-slave role, device name, pairing password and other parameters.

When the AT command is issued, it must end with a carriage return. The AT command can only take effect when the module is not connected. Once the Bluetooth module is connected to the device, the Bluetooth module enters the data transparent transmission mode.

Features:

- Bluetooth protocol: Bluetooth V4.0 specification, sending and receiving without any byte restrictions

- Operating frequency: 2.4GHz ISM band

- Modulation method: GFSK (Gaussian frequency shift keying)

- Sensitivity: ≤ -84dBm 0.1% BER

- Transmission rate: 6 kbps

- Power consumption: automatic sleep mode, standby current 400 μA - 1.5 mA, 8.5 mA during transmission.

- Function: master-slave

- Operating voltage: 3.2V - 5.5V (on-board 3.3V regulator)

- Interface logic voltage: compatible with 3.3V / 5V (onboard 3.3V level conversion circuit)

- Logical interface type: UART TTL serial port

- Serial port baud rate: 9600 (default), can be modified to other values by command

- Uses: Bluetooth car handsfree, Bluetooth wireless data transmission, wireless keyboard, mouse, smart home