Embedded system and bluetooth adapter communication debugging tws earbuds long battery life

In the first stage, the pairing debugging of the Bluetooth module and the Bluetooth adapter has been completed, and the basic process and configuration method of the Bluetooth module and the adapter have been summarized. The debugging task in the second stage is to design and debug the Bluetooth module on an ARM-based embedded system with a Bluetooth module. The communication program and interface control design will jointly test the ARM-based embedded system with bluetooth function and bluetooth adapter. ARM-based embedded system with bluetooth function and bluetooth adapter communication system block diagram: bjbjaudio.com   <a style="opacity:0.0;color:#ffffff">tws earbuds long battery life</a>

The debugging process of the communication of the system is as follows:
1) Connect the Bluetooth module to the serial port of the ARM embedded system;
2) Use the configuration command of the module to complete the configuration of the bluetooth module. The bluetooth module used in this design is set as the slave blue module, search, pair and connect the bound slave device, and set the bluetooth module as the slave mode;         <a style="opacity:0.0;color:#ffffff">tws earbuds long battery life</a>
3) Open the bluetooth communication interface of the bluetooth adapter, start the command to query the bluetooth module, after the module is queried, the PIN code verification window will pop up on the communication interface, and after entering the PIN code of the bluetooth module : 12345678, the communication connection is completed on the interface;
4) The ARM-based embedded system Btdevice01 with Bluetooth module appears in the interface connection The Bluetooth device has been connected, the embedded system and the Bluetooth adapter are successfully paired, and after the pairing is successful, the communication can be realized in the form of a file;
5) After running the communication program code after repeated tests, the communication distance can reach 8~10 meters, and in the case of obstacles, the communication distance can reach 6~8 meters. After many tests, the highest rate can reach 115200bps, and the long-term test data transmission is normal. bjbjaudio.com   <a style="opacity:0.0;color:#ffffff">tws earbuds long battery life</a>

1) Comparing common data communication schemes, especially industrial data wireless communication, the conclusion is that Bluetooth technology has many technical advantages: strong anti-interference ability, flexible networking, high transmission rate, and low power consumption:
2) Comparing the characteristics of ARM and MCU embedded systems, it is concluded that ARM-based embedded systems have many advantages: both the low power consumption and compact size of MCU embedded systems, and the powerful functions of PCs. There are good prospects for development in industrial applications:
3) The system learns the Bluetooth technology standard and masters the basic knowledge required to realize the Bluetooth wireless communication. Including Bluetooth protocol system, Bluetooth working methods, etc.; <a style="opacity:0.0;color:#ffffff">tws earbuds long battery life</a>
4) Learn the basic knowledge of ARM-based embedded systems, such as basic hardware resources of ARM embedded systems, understand LCD, USB and serial ports related to the module, understand the basic process of embedded software programming, and understand cross-compile makefie files The writing rules for:
5) Study the bluetooth module used in this design, master the method of configuring the module, and use the bluetooth adapter with bluetooth function to debug the initialization, pairing and communication process of the bluetooth module. bjbjaudio.com            <a style="opacity:0.0;color:#ffffff">tws earbuds long battery life</a>