CA-6928 V2 Bluetooth Audio Module

Wireless Audio Receiver and Amplifier Board CA-6928 V2

The CA-6928 V2 Bluetooth Audio Module is a versatile and compact solution for hobbyists, students, and engineers looking to add wireless connectivity to their DIY electronics projects. Designed to bridge the gap between modern wireless streaming and traditional audio hardware, this module features an integrated 3W power amplifier that enables direct speaker connection without requiring an external amplifier stage. Available across Bangladesh through Biggan Project, it provides makers with an accessible component to build portable speakers, smart home sound systems, and custom audio setups. Operating efficiently on a 3.7V to 5V DC supply, it integrates seamlessly into battery-powered prototypes and embedded innovations commonly developed by creators in BD.

Features

• Integrated 3W audio amplifier capable of driving small speakers directly
• Compact footprint ideal for space-constrained embedded systems and portable builds
• Wide operating voltage range supporting 3.7V lithium batteries or 5V USB sources
• Stable wireless connectivity range of up to 10 metres in unobstructed areas
• Plug-and-play pairing mechanism for fast smartphone and laptop connection
• Low power consumption profile optimized for mobile maker projects

Applications / Use Cases

• DIY portable Bluetooth speakers and personal mini sound systems
• Smart home automation voice notification and audio feedback nodes
• Educational robotics audio output modules for science projects in BD
• Upgrading vintage wired speakers into wireless streaming devices
• Custom multimedia desktop gadgets and interactive electronic displays

User Guide / How to Use

• Connect a suitable 3.7V lithium-ion battery or a regulated 5V DC power source to the power input pads.
• Wire a compatible 3W speaker (typically 4 ohms or 8 ohms) directly to the designated audio output terminals.
• Power on the module and activate Bluetooth pairing mode on your smartphone, tablet, or laptop.
• Search for available devices, select the module identifier, and pair successfully to start streaming audio wirelessly.

Frequently Asked Questions (FAQs)

• Q: Can this module drive large home theater speakers?
  A: No, it is designed with a built-in 3W amplifier optimized for small portable speakers and mini projects.
• Q: What power source should I use for portable applications?
  A: A standard 3.7V lithium polymer battery or a 5V USB power bank works effectively.
• Q: Does it require an external audio amplifier IC?
  A: No, the amplifier is built directly into the board, allowing direct speaker connection.

Challenges and Considerations

• Audio interference or cracking can occur if the power supply is unstable or shares ground noise with heavy motor drivers.
• Bluetooth V2 has a limited data rate compared to newer versions, making it best suited for standard audio streaming rather than high-definition master tracks.
• Physical obstacles and walls can significantly reduce the effective 10-metre wireless connection range.

Compatibility

• Smartphones running Android and iOS operating systems
• Laptops and desktop computers equipped with Bluetooth adapters
• Tablets, MP3 players, and other Bluetooth-enabled media sources
• Standard 3W speakers, small enclosure drivers, and buzzer components

Future Enhancement Options

• Integrating an external push-button module for track control and volume adjustments
• Adding a rechargeable lithium battery management charging circuit for standalone portable operation
• Enclosing the setup in a custom 3D-printed acoustic chamber for improved sound projection

Benefits

• Eliminates the complexity and extra cost of adding a separate external amplifier board
• Enables rapid prototyping for students and electronics creators building commercial science projects
• Offers high portability for wearable or handheld tech creations

The CA-6928 V2 Bluetooth Audio Module delivers exceptional utility for makers seeking a reliable, all-in-one wireless audio and amplification solution. Backed by Biggan Project, it empowers innovators in Bangladesh to bring modern smart audio capabilities to life efficiently and affordably.

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