Digital Power 82D05 Audio Amplifier Bluetooth Module
Digital Power 82D05 Audio Amplifier Bluetooth Module is a compact wireless audio solution designed for Bluetooth-enabled speaker projects and portable sound systems. Operating from a 5VDC supply, it combines Bluetooth audio reception with digital power amplification to provide clear and reliable sound output. Its small footprint, low power consumption, and easy integration make it suitable for DIY speakers, audio upgrades, multimedia devices, and embedded audio applications. The onboard Bluetooth functionality ensures convenient wireless music streaming from smartphones, tablets, and other compatible devices.
Features
- Integrated Bluetooth wireless audio reception for cable-free music streaming.
- Built-in digital power amplifier for efficient audio output.
- Operates from a stable 5VDC power supply.
- Compact PCB design for easy installation in limited spaces.
- Low power consumption suitable for portable applications.
- Fast pairing with compatible Bluetooth-enabled devices.
- Clear audio performance with reduced signal interference.
- Simple interface for integration into DIY audio projects.
- Lightweight construction for portable speaker systems.
- Reliable operation and long service life.
Specifications
| Parameter | Details |
|---|---|
| Module Type: | Bluetooth Digital Power Amplifier Module |
| Bluetooth Version: | Bluetooth V2.0+EDR |
| Operating Voltage: | 5VDC |
| Audio Output: | Stereo Output |
| Audio Channels: | 2 Channel |
| Communication: | Bluetooth Wireless Communication |
| Power Consumption: | Low Power Design |
| PCB Type: | Compact Integrated Board |
| Mounting Type: | Through Hole Interface |
| Operating Mode: | Digital Amplification |
| Connectivity: | Wireless Bluetooth Audio |
| Module Board Dimensions: | 23mm × 14mm × 1mm |
| Antenna Type: | PCB Trace Antenna |
| Transmission Distance: | Up to 10meter (Open Area) |
| Application Type: | Wireless Audio Systems |
Pinout Configuration

| Pin Number | Pin Name | Function/Description |
|---|---|---|
| 1 | ROUT | Right Channel Audio Output. |
| 2 | GND | Audio Ground Connection. |
| 3 | LOUT | Left Channel Audio Output. |
| 4 | VIN | Power Supply Input (5VDC). |
| 5 | GND | Power Ground Connection. |
| 6 | DP | USB Data Positive (D+), typically used for programming or configuration. |
| 7 | DM | USB Data Negative (D-), typically used for programming or configuration. |
| 8 | BAT+ | Positive Battery Terminal Connection. |
| 9 | BAT- | Negative Battery Terminal Connection |
Applications
- DIY Bluetooth speaker projects.
- Portable wireless audio systems.
- Home audio enhancement systems.
- Multimedia speaker assemblies.
- Educational electronics projects.
- Wireless music streaming devices.
- Embedded audio applications.
- Battery-powered speaker systems.
- Audio prototyping and development.
- Compact sound amplification solutions.
Package Contents
- 1x Digital Power 82D05 Audio Amplifier Bluetooth Module


