Product description
M28 Wireless Bluetooth MP3 Audio Receiver Board BLT 4.2 MP3 HIFI Lossless Decoding Module
GND: Negative power supply
VBAT: Lithium battery positive 3.7-4.2V
Power supply: It can be directly powered by the MICRO USB Android cable 5V, or it can be connected to a 5V power supply or a 3.7V lithium battery. Note that the 5V and 3.7V power supply interfaces are different. The 5V voltage is connected to 5V and GND, and the 3.7V lithium battery is connected to VBAT and GND.
Audio output: The earphone can be directly connected to the 3.5mm audio interface, or it can be wired for the audio input of the power amplifier board (interface L/R/AGND can be directly wired).
M28 Wireless Bluetooth Audio Receiver board lossless MP3 decoder kit HiFi Stereo Speaker
This product M28 is a low-power Bluetooth design solution, 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 be up to 20 meters.
Widely used in a variety of Bluetooth audio reception, a variety of audio DIY modification.