MH-M18 Wireless Bluetooth Audio Receiver Board

The MH-M18 Wireless Bluetooth Audio Receiver Board is a compact and efficient Bluetooth module designed for wireless audio transmission. It supports Bluetooth 5.0, enabling stable connection, low latency, and clear stereo sound. Commonly used in DIY wireless speaker projects, car audio systems, and Bluetooth-enabled amplifiers, the MH-M18 offers plug-and-play functionality with onboard 3.5mm audio jack and solder pads for audio output.

Key Features of MH-M18 Wireless Bluetooth Audio Receiver Board:

• Bluetooth 5.0: Offers low power consumption and enhanced audio transmission range.
• Built-in 3.5mm Audio Jack: Easily connects to headphones or external amplifiers.
• Onboard Button Support: For Play/Pause, Next, and Previous track control.
• Micro USB Power Input: Supports direct power input from USB sources (5V).
• Compact Size: Ideal for space-limited DIY projects or embedded audio systems.

Technical Specifications of MH-M18 Bluetooth Audio Receiver:

• Bluetooth Version: 5.0
• Operating Voltage: DC 5V (via Micro USB or VCC/GND pins)
• Audio Output: Stereo (L/R) via 3.5mm Jack and solder pads
• Output Impedance: 32Ω (compatible with headphone/amplifier)
• Communication Distance: Up to 15 meters (no obstacle)
• Dimensions: 30mm x 20mm x 5mm (L x W x H)

Mechanical Specifications of MH-M18 Module:

• PCB Type: Single-layer compact board
• Connector Type: 3.5mm audio jack and solder pads for output
• Button Pads: Volume +, Volume –, Play/Pause supported
• Mounting: DIY soldering or adhesive tape mounting

Dimensions:

• Length: 30mm
• Width: 20mm
• Height: 5mm

Mounting Options:

• Adhesive Mount: Attach with double-sided tape inside enclosures.
• PCB Holder: Can be installed on custom 3D-printed brackets or holders.

Schematic Diagram, Connection, Wiring and Pinout of MH-M18:

• VCC and GND: Connect 5V DC power supply.
• Audio Out L/R: Left and Right channel output to amplifier or speakers.
• Button Pads: Short to GND to trigger play/pause or next/previous functions.
• Micro USB: Alternative power input method for ease of use.

Datasheet of MH-M18 Wireless Bluetooth Module:

• Download MH-M18 Datasheet (PDF)

Applications of MH-M18 Bluetooth Audio Receiver Board:

• DIY Bluetooth Speakers: Turn any wired speaker into a wireless Bluetooth speaker.
• Car Audio Upgrade: Add Bluetooth functionality to car amplifiers.
• Wireless Headphone Dock: Output audio to wired headphones from a mobile device.
• Bluetooth Audio Transmitter: Interface with audio systems for wireless streaming.
• Home Audio Systems: Stream music from phones and laptops to home speakers.

Equivalent Models of MH-M18 Bluetooth Audio Module:

• MH-M28: Variant with onboard amplifier support
• XS3868: Popular stereo Bluetooth audio module
• JDY-62: Bluetooth stereo audio receiver board with solderable pins

Package Includes:

• 1 x MH-M18 Wireless Bluetooth Audio Receiver Board