1. Introduction
The occkic CA-6928 is a compact Bluetooth 5.0 audio amplifier module designed for various DIY audio projects. This module provides a mono audio output that can be wired to both channels of a stereo system, making it versatile for applications such as custom Bluetooth speakers, electronic toys, and integration into household appliances or lighting systems. Its small size and simple operation make it an ideal component for hobbyists and electronics enthusiasts.
Video: Overview of the CA-6928 Bluetooth Audio Module.
2. Safety Information
- Ensure correct polarity when connecting power to avoid damage to the module.
- Operate within the specified voltage range (3.3V-8V). Exceeding this range may cause permanent damage.
- Avoid short-circuiting the output terminals.
- Keep the module away from moisture, extreme temperatures, and static electricity.
- This module is intended for experienced users and DIY projects. Handle with care.
3. Package Contents
Each package typically includes:
- 5x CA-6928 Bluetooth 5.0 Audio Amplifier Module
Image: Five CA-6928 Bluetooth audio modules as typically supplied in a package.
4. Specifications
| Feature | Specification |
|---|---|
| Model Number | CA-6928 |
| Bluetooth Version | 5.0 |
| Input Voltage | 3.3V - 8V (Typical: 5V) |
| Output Type | Audio Headphones (Mono) |
| Dimensions (WxHxD) | 1.50cm x 2.40cm x 0.50cm (0.59in x 0.94in x 0.20in) |
| Weight | 0.002kg (1.6g) |
| Compatible Equipment Style | Amplifier |
| Origin | Mainland China |
| Certification | None |
Image: Physical dimensions and weight of the CA-6928 module.
5. Setup and Wiring
The CA-6928 module features clearly labeled pins for power input and audio output. Refer to the diagrams below for proper connection.
5.1 Pinout Diagram
Image: Detailed wiring diagram showing power and audio output pins.
Image: Table detailing the function of each pin on the CA-6928 module.
5.2 Connection Steps
- Power Supply: Connect the positive power supply (3.3V-8V, typically 5V) to the VCC pin and the negative power supply (ground) to the GND pin. Ensure correct polarity.
- Audio Output: The module provides a mono audio output.
- Connect the ROUT (Right channel output) pin to the right audio input of your amplifier or headphones.
- Connect the LOUT (Left channel output) pin to the left audio input of your amplifier or headphones.
- Connect the AGND (Audio input ground) pin to the audio ground of your amplifier or headphones.
- Mono Signal to Stereo: Since this is a mono output, connecting both ROUT and LOUT to a stereo input will duplicate the mono signal across both channels, providing sound from both speakers/earcups.
6. Operating Instructions
- Power On: Once wired correctly, apply power within the 3.3V-8V range to the module. An indicator LED (if present) may light up or flash, indicating the module is active and in pairing mode.
- Bluetooth Pairing: On your mobile device or computer, search for available Bluetooth devices. The module should appear with a name like "BT-AUDIO" or similar. Select it to pair.
- Audio Playback: Once paired, play audio from your device. The sound will be transmitted to the CA-6928 module and output through the connected audio system.
- Disconnecting: To disconnect, simply turn off Bluetooth on your source device or power off the module.
7. User Tips
- For best audio quality, ensure all connections are secure and free from interference.
- Consider adding a small capacitor (e.g., 100uF) across the VCC and GND pins near the module for power supply filtering, especially if experiencing noise.
- The module's small size makes it suitable for embedding into tight spaces, but ensure adequate ventilation if used in an enclosed environment.
8. Troubleshooting
- No Power: Double-check power connections (VCC and GND) and ensure the voltage is within the 3.3V-8V range. Verify the power source is functional.
- Cannot Pair: Ensure the module is powered on and no other device is currently connected. Try restarting the module and your Bluetooth source device.
- No Sound: Verify audio output connections (ROUT, LOUT, AGND) to your amplifier or headphones. Check the volume levels on both your source device and the connected audio system. Ensure the module is successfully paired.
- Poor Audio Quality/Noise: Check for loose connections. Ensure the power supply is stable and free from ripple. Keep the module away from strong electromagnetic interference.
9. Maintenance
- Keep the module clean and free from dust and debris. Use a soft, dry cloth for cleaning.
- Store the module in a dry, cool environment when not in use.
- Avoid physical shock or excessive force on the module.
10. Warranty and Support
For technical support or inquiries regarding the CA-6928 Bluetooth 5.0 Audio Amplifier Module, please contact your retailer or the manufacturer. Please retain your purchase receipt for any warranty claims. Specific warranty terms may vary by region and seller.
