Difference between Bluetooth module and Bluetooth audio receiving module

Bluetooth module and Bluetooth audio receiving module are two different types of Bluetooth devices, and their main differences lie in their design and main uses. Here are some of the main differences between them:

Functions and applications:

Bluetooth module: generally refers to the universal Bluetooth communication module, which can be used to transmit various types of data between devices, such as text, files, control commands, etc. It has universal Bluetooth communication function and is suitable for various application scenarios, such as Internet of Things devices, sensors, smart homes and so on.

Bluetooth audio receiving module: specially designed to receive Bluetooth audio signals, so that non-Bluetooth audio devices can receive and play audio transmitted through Bluetooth. This module is usually used to build Bluetooth headsets, Bluetooth speakers or add Bluetooth audio to traditional audio devices.

Communication protocol:

Bluetooth module: It can support a variety of Bluetooth communication protocols, including Bluetooth Classic and Bluetooth Low Energy Consumption (BLE).

Bluetooth audio receiving module: usually focus on supporting Bluetooth audio transmission protocols, such as Advanced Audio Distribution Protocol (A2DP) and Audio/Video Remote Control Protocol (AVRCP), to ensure high-quality audio transmission and control functions.

Interfaces and pins:

Bluetooth module: It usually provides general communication interfaces, such as UART (serial communication), and may also include other digital and analog interfaces to support different applications.

Bluetooth audio receiving module: It is usually designed for connecting audio equipment more conveniently, and may have a special audio output interface, such as analog audio output or digital audio output.

Application field:

Bluetooth module: suitable for a wide range of applications, including data transmission, equipment control, sensor networks and so on.

Bluetooth audio receiving module: mainly used for audio-related applications, such as Bluetooth headphones, Bluetooth speakers, Bluetooth audio receivers, etc.

Generally speaking, Bluetooth module is a general concept, while Bluetooth audio receiving module focuses on supporting audio transmission and connecting audio devices. Choosing which type of module to use depends on your specific application requirements.