USING THE BLUETOOTH AUDIO RECEIVER AMPLIFIER MODULE – BT50-AUDIO-PRO
This audio receiver module continues from the former hardware of the M28 Bluetooth audio receiver module. It has long-distance transmission, Bluetooth 5.0 (with backward compatibility), and lossless sound quality. Additionally, the BT5.0 Audio Pro has user-friendly and performance-enhanced features.
Connection Diagram
Features
Charge while playing
This module has a charging circuit that can charge a Li-Ion battery through the USB power supply. Additionally, you’ll be able to use Bluetooth while charging. It’s unlike other products out there that don’t allow you to play Bluetooth while charging.
Power/Charging LED Indicator Functions
- When powered by USB alone: A red light flashes, indicating that the power supply is OK.
- When powered by a separate battery: The yellow light is always on, indicating that the battery power supply is working; the yellow light flashes, indicating that the battery is low.
- When the USB and battery are connected at the same time: A red light flashes to indicate that the battery is charging; When the red light is steady, this indicates that the battery is fully charged.
(Note that if the USB input is suddenly disconnected during the charging and discharging process, there will be a few seconds of interruption due to the charge and discharge mode switching at this time, after which Bluetooth will automatically restart, automatically connect and maintain the previous playback state)
Incoming voice call function
After the Bluetooth is connected, turn on the call audio mode in the Bluetooth settings. If the phone calls, you can answer or hang up the phone through the PLAY/STOP button. You can choose to talk from the microphone of the original headset (provided that the headset has a call function, which is a 4-segment type) or from the onboard microphone (default), see the function description for details.
Using the computer sound card function
- Tin the pads corresponding to the Sound Card on the back of the module. C
- Connect the module to the USB interface of the computer through the USB cable to be able to use it as a sound card. Here, the sound played by the computer is output through the audio interface of the module. See function description for details. (Not enabled by default).
Product Size
Product Features
Functional Description
Power Supply and Signal Characteristics