Quick Start

What you need

Required Hardware

1 x FSC-DB008-BT909C Rapid Development Kit : FSC-DB008 Rapid Development Kit pre-integrated with the FSC-BT909C Bluetooth Audio Module
1 x Windows PC

Software and Setup

Feasycom Serial Port Tool : A serial port communication analysis tool based on Windows PC.
Communication Interface : UART
UART Configuration : 115200/8/N/1

Hardware Access

1.Connect the FSC-DB008-BT909C to the PC via a USB-to-Type-C data cable. The PC will automatically recognize the serial port and generate a virtual COMx port.

bt909c

2.Run the Feasycom Serial Port Tool on the PC, set the correct COM and Baud, and check the New Line.

bt909c

Communication Test

The following are several basic general AT command test examples.

For more AT commands, please refer to FSC-BT909C General Audio AT Command Set .

AT - UART Communication Test

Command	AT\r\n
Response	\r\nOK\r\n
Description	Test the UART communication between HOST and Module after power on, baudrate changed, etc.

Example:

 Send:    >>AT\r\n               
 Response:<<\r\nOK\r\n

AT+NAME - Read/Write Local BR/EDR Name

Example：

Send:     <<AT+NAME\r\n
Response: >>\r\n+NAME=FSC-BT909C-0BB5\r\n   //Example, please refer to the actual reading 
Response: >>\r\nOK\r\n

AT+LENAME - Read/Write Local BLE Name

Example：

Send:     <<AT+LENAME\r\n
Response: >>\r\n+LENAME=FSC-BT909C-LE-0BB5\r\n   //Example, please refer to the actual reading 
Response: >>\r\nOK\r\n

AT+VER - Read the Current Firmware Version

Example：

Send:     <<AT+VER\r\n
Response: >>\r\n+VER=BT909C,V2.2.1,20230103\r\n    //Example, please refer to the actual reading 
Response: >>\r\nOK\r\n