M-38 Bluetooth 4.2 Audio Module

M-38 Bluetooth Audio Module

MH-M38,It is a low-power design solution, supporting the latest Bluetooth 4.2 transmission, two-channel stereo lossless playback, Bluetooth connection, after the module is connected to Bluetooth. In an open environment, the Bluetooth connection distance can be up to 20 meters. It is widely used in a variety of Bluetooth audio reception, a variety of audio DIY modification.

Bluetooth V4.2 version supports Bluetooth automatic connection technology, WAV / WMA / FLAC / APE / MP3 lossless decoding, stereo dual channel output.

After the module is turned on, the mobile phone searches for the name Bluetooth MH-M18 / MH-M28 / MH-M38, and can play music after connecting the Bluetooth.

Note:

• 1. Power Supply: You can use MICRO USB Android cable 5V directly for power supply or connect 5V power supply or 3.7V lithium battery (as shown in the figure below). Note that the 5V and 3.7V power supply interfaces are different. It connects to 5V, 5V and GND, and connects to 3.7V lithium battery, VBAT and GND. Maximum operating current is 5V2A. It is recommended to use a regulated 5V2A power supply for better sound quality.

• 2. Support USB sound card, free driver (plug and play). Connect the module to computer with USB cable, and the computer can play music through the module amplifier output.

• 3. Audio Output: output left and right channel stereo audio signals, two 2-8 euro, can be connected to 3-5W speakers, push 4 O 5W speaker.

• 4. This product has its own dual 5W power amplifier circuit and must not be connected to any other amplifier! The outputs of the two amplifiers cannot be connected in parallel, or the negative poles are connected together, otherwise the power amplifier chip will be damaged.

M-38 Bluetooth 4.2 Audio Module Technical Specifications

Pin Definition

Package Included:

• 1 x M38 Module

Useful Links

• Bluetooth Audio and Amplifier ModulesYou can review our products.
• Bluetooth ModuleYou can review our products.