BLE module RF2541_PL2 in Bluetooth vibration project

Ⅰ)Product information: 

Product Name of BLE module RF2541_PL2

Description: 

RF2541-PL2 is a Bluetooth 4.0 low Power consumption BLE module and adopts CC2541 SOC chip from TI. RF2541-PL2 communicate with others through UART interface, with all the feature of BLE 4.0, it is easy to use, the features include: low power consumption, long distance, and strong anti-interference ability. 

Applications:  

• Mobile phone peripheral equipment

• Consumer health and medical care

• Human interface devices (keyboard, hand, remote control)

• 2.4 G low power energy systems

• Home building automation

• Sports and fitness device

Features:

• Frequency arrange: 2379-2496MHz

• Sensitivity up to -99dBm@250kbps

• Data transfer rate: 250Kbps, 500Kbps, 1Mbps, 2Mbps

• GFSK modulation

• 2.0-3.6 V power supply

• Low current in sleep mode <2uA

• Uart interface

• Master and Slave mode

• RSSI output, carrier detect indication

• Meet BQB and RoSH standards

• Point to point, flexible

• communication mode;

• High performance and low power 8051 core

II): Bluetooth vibration control system based on BLE module RF2541_PL2

2.1 Functions description:

The communication flow between two BLE modules RF2541_PL2:  The master device searches for the slave and build connection, and then the master sends control information, the slave would respond to control the motor starting or stopping according to the received information. The master can be a customized device or a smartphone. The slave device is a custom-made product with a BLE module and vibration motor.

2.2 Device hardware schematic in bluetooth vibration project:

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