Bluetooth 5.0 Decoding Board Stereo Audio Module Wide Voltage Adjustable Speaker Power Amplifier XY-WRBTItem NO.: XY-WRBT

Bluetooth 5.0 Decoding Board XY-WRBT

Product Information:

Product name: Bluetooth decoding board

Product model: XY-WRBT

Working voltage: 3.7-24VDC

Bluetooth version: 5.0

Transmission distance: 15 meters (visible and unobstructed)

Signal to noise ratio: ≥ 90dB

Distortion: ≤ -70dB

Number of channels: dual channel (stereo)

Audio interface: 3.5mm audio interface

Module protection mechanism: power reverse connection protection

Interface Description:

1. Power can be supplied using a Micro USB mobile phone charger, a 3.7-4.2V lithium battery, a 3.7-24V DC power supply, or any of the three options.

2. Short circuit the "on/off contact" for 2 seconds to set the decoding board on/off. For battery powered situations, shutting down when not in use is more energy-efficient and convenient for modification.

Operating instructions:

After turning on the power, the blue indicator light flashes quickly and enters Bluetooth mode; After broadcasting the "prompt tone", enter pairing mode and wait for pairing; Search for "XY-WRBT" (amplifier board device name) through Bluetooth on your mobile phone, click on "XY-WRBT" to connect, and once the connection is successful, play the "prompt tone". The indicator light will stay on for a long time to play mobile music. When playing music, the indicator light will slowly flash; After Bluetooth is disconnected, the amplifier board is ready for the next pairing and plays the "prompt tone" to enter pairing mode and wait for pairing.

Precautions for using a 3.7V lithium battery for power supply:

1. When using battery power, the decoding board automatically shuts down when the battery voltage is lower than 3.3V. After re charging or fully charging, short circuit the on/off contacts for 2 seconds to start the machine.

2. When using a battery for power supply, if the battery voltage is too low, there may be "buzzing" noise, in which case the battery needs to be charged.

3. Due to the lack of a lithium battery charging protection circuit designed on the decoding board, it is recommended to use a lithium battery with its own protection board.

4. If your rechargeable battery supports Micro USB direct charging, you can use Micro USB to charge the battery directly.