Bluetooth serial port module is based on Serial Port Profile (SPP), a device that can create a SPP connection with another Bluetooth device for data transmission, and is widely used in electronic devices with Bluetooth functions.
As a general wireless communication module, Bluetooth serial port module has the characteristics of simple development and easy operation. If a manufacturer adopts the embedded Bluetooth serial port module + MCU to develop products with Bluetooth function, electronic product developers/engineers can easily provide electronic products with MCU serial ports without having professional and sophisticated Bluetooth development knowledge. Significantly reduced the company's research and development costs and employment costs, but also reduced development risks.
The Bluetooth serial port module realizes the separation of MCU development and Bluetooth development work, which greatly reduces the difficulty of Bluetooth product development, improves the stability and speed of product development, shortens the product development cycle, and accelerates the time to market.
There are some problems maybe you would like to know:
1. Can Bluetooth serial port module transmit audio?
The Bluetooth serial port module is based on the Bluetooth protocol and implements SPP, which is a serial port application. Other applications such as audio A2DP applications are not supported. But USB's Bluetooth adapter (dongle) has various applications, such as file transfer, virtual serial port, voice and so on.
2. Do I need to understand the Bluetooth protocol while using the serial port module?
No, just use the Bluetooth serial port module as a transparent serial peripheral. After pairing with the Bluetooth serial port module on the computer or mobile phone, you can open the corresponding Bluetooth virtual serial port and the Bluetooth serial port module through the application program to communicate. The Bluetooth module can be connected to other peripherals with a serial port, such as a microcontroller or another computer.
3. How to test whether the Bluetooth serial port module is normal?
First supply power to the Bluetooth module (3.3V), then short-circuit TX and RX, pair the Bluetooth serial port module through the computer or mobile phone, and then you can send and receive data through the serial port app, so you can test whether the Bluetooth serial port module is normal.
For more details,please feel free to contact with Feasycom sales Team.