Name: Peggybuy MH-M18/M28/M38 Bluetooth-Compatible Audio Module HiFi DIY Modification Kit
Brand: Peggybuy
SKU: 5HGISLWMNHR8
Availability: OutOfStock

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Peggybuy MH-M18/M28/M38 Bluetooth-Compatible Audio Module HiFi DIY Modification Kit

<ul><li>Clear Indicators: The blue indicator light on the module offers clear indications of its status, with fast flashing indicating no connection, steady light indicating connection, and slow flashing indicating playback.</li><li>Easy to Use: Once powered on, your phone will automatically search for the MH-M18/M28/M38 Bluetooth-Compatible name, allowing you to connect quickly and play your favorite tunes right away.</li><li>Automatic Reconnection: The module supports automatic reconnection technology, making it easy to connect to your device and start playing music instantly.</li><li>High-Fidelity Stereo Playback: With support for dual-channel stereo sound and lossless playback of WAV/WMA/FLAC/APE/MP3 files, this Bluetooth-Compatible audio module delivers high-fidelity sound quality that's perfect for audiophiles.</li><li>Low Power Bluetooth-Compatible Design: This audio module features a low-power Bluetooth-Compatible design that supports the latest Bluetooth-Compatible 4.2 transmission technology, enabling quick and easy wireless connectivity between devices.</li></ul>

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Specification: MH-M18: The module interface adopts a half hole process, and customers can directly mount or weld it onto the board. Number Pin Description 1 KEY button control terminal (4 button functions, additional resistance required 2 MUTE mute control terminal (output high level 3.3V during mute, output low level during playback) 3 VCC power supply positive pole 5V (lithium battery 3.7V power supply requires short-circuit diode) 4 GND power supply negative pole 5 L left channel output 6 R right channel output MUTE mute control terminal: used to control the power amplifier board. When mute, MUTE outputs a high level of 3.3V, and when playing, it outputs a low level. KEY button control: This function requires additional connection of resistors and buttons to be implemented. Volume power off hold function: default output volume. Control the volume to increase or decrease by pressing the button. If the control volume is less than 15%, the volume output will be 15% after re powering on; If the control volume is greater than 15%, the original volume will remain unchanged after power on again. MH-M28: Number Pin Description 1 5V power supply positive 5V 2 GND power supply negative pole 3 VBAT lithium battery positive electrode 3.7-4.2V 4 L left channel output 5 R right channel output 6 AGND audio ground 1. Power supply: You can directly use the MICRO USB Android cable 5V for power supply, or you can also connect an additional 5V power supply or 3.7V lithium battery. Note that the power supply interfaces for 5V and 3.7V are different. The 5V voltage is connected to 5V and GND, and the 3.7V lithium battery is connected to VBAT and GND. 2. Audio output: The headphones can be directly connected to a 3.5mm audio interface or wired for audio input on the power amplifier board (as shown in the figure, the interface L/R/AGND can be directly wired). MH-M38: Number Pin Description 1 5V power supply positive 5V 2 GND power supply negative pole 3 VBAT lithium battery positive electrode 3.7-4.2V 4 L+/L-left channel output (directly connected to the speaker) 5 R+/R - Right channel output (directly connected to the speaker) 1. Power supply: You can directly use the MICRO USB Android cable 5V for power supply, or connect an additional 5V power supply or 3.7V lithium battery (as shown in the following figure). Note that the power supply interfaces for 5V and 3.7V are different. 5V is connected to 5V and GND, while 3.7V lithium batteries are connected to VBAT and GND. High working current 5V2A, it is recommended to use a 5V2A regulated power supply for power supply. 2. Supports USB sound card