Quick Start
What you need
Required Hardware
1 x FSC-BT3721V Module
1 x PC (Windows)
Software and Setup
Feasycom Serial Port Tool : A serial communication analysis tool based on Windows PC.
Communication Interface：UART
Serial Configuration：115200/8/N/1 (General default for Feasycom firmware)
Hardware Access
UART Connection
FSC-BT3721 provides one channels of Universal Asynchronous Receiver/Transmitters(UART)(Full-duplex asynchronous communications). The UART Controller performs a serial-to-parallel conversion on data received from the peripheral and a parallel-to-serial conversion on data transmitted from the CPU.
This is a standard UART interface for communicating with other serial devices. The UART interface provides a simple mechanism for communicating with other serial devices using the RS232 protocol.
When the module is connected to another digital device, UART_RX and UART_TX transfer data between the two devices.
When connecting the module to a host, please make sure to follow：
Communication Test
Module-to-PC
1.On the premise of ensuring compliance with the aforementioned UART connection requirements, set up the hardware testing environment with the PC. Upon completion, the PC will automatically recognize the device and virtualize a COM port.
2.Run the Feasycom Serial Port Tool on the PC, set the correct COM and Baud, and check the New Line opti.
UART Communication Test
The following lists a few basic general AT command test examples.
For more commands, please refer to FSC-BT3721V General Data 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 //Successfully connected.
AT+NAME - Read/Write Bluetooth Name
Example：Read Bluetooth name
send: <<AT+NAME\r\n
response: >>\r\n+NAME=FSC-BT3721V\r\n //Default, please refer to the actual reading result
response: >>\r\nOK\r\n
AT+VER - Read Current Firmware Version
Example：
Send： <<AT+VER\r\n
Response：>>\r\n+VER=6.2.6,FSC-BT3721V\r\n //Example, please refer to the actual reading result
response: >>\r\nOK\r\n