mh -mx 8 โมดูลเสียงสเตอริโอบลูทูธไร้สาย 4 . 2 m 18 mh - m 28 mh- m 38
MH-MX8 Wireless Bluetooth Audio Module Bluetooth 4.2 Stereo Lossless HIFI MH-M18 MH-M28 MH-M38
Product introduction:
This product MH-M18 / M28 / M38 is a low-power Bluetooth design solution that supports the latest Bluetooth 4.2 transmission two-channel stereo lossless playback and the module can be connected to Bluetooth to quickly realize Bluetooth wireless transmission which is very convenient. In an open environment the Bluetooth connection distance can reach 20 meters.
Widely used in various Bluetooth audio receivers various audio DIY conversions etc.
Function Description:
Bluetooth V4.2 version support Bluetooth automatic connection technology support WAV / WMA / FLAC / APE / MP3 lossless decoding stereo two-channel output.
After the module is powered on the mobile phone searches for the Bluetooth name MH-M18 / MH-M28 / MH-M38 and can play music after connecting to Bluetooth
Module blue indicator:
When Bluetooth is not connected the indicator flashes quickly;
When Bluetooth is connected the indicator light is always on;
When Bluetooth is playing the indicator light flashes slowly.
Warning: The charging interface of this product is a current-limiting charging mode without charge management! For your life and property safety be sure to use a lithium battery with a protective plate produced by a regular manufacturer. Our company will not bear any responsibility if it is damaged due to improper use!
In addition the following two points need to be paid attention to when using MH-M18:
Power supply: 5V power supply by default. If you need to use a 3.7V lithium battery to power you need to replace the diode with a 0ohm resistance of 0603 or directly short the two ends of the pad.
The Bluetooth audio module has very high power requirements which will affect the audio quality. It is recommended to add an LC filter circuit especially a switching power supply (such as a mobile phone charger).
MUTE mute port: When this module is muted this port outputs a high level of 3.3V and a low level of 0V during playback. The power amplifier board mute high level can be directly connected if it is valid. If the power amplifier board mute is low-level control you need to add a reverse circuit.
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