Products
Stereo Bluetooth Audio Module Bluetooth 5.0 Decoder Board Wide Voltage Volume Adjustable Speaker Power Amplifier XY-WRBT -78394
product detail
Parameter:
Model: XY-WRBT
Working voltage: 3.7-24VDC
Bluetooth-compatible version: 5.0
Transmission distance: 15 meters (visible without obstruction)
S/N ratio≥90dB
Distortion ≤-70dB
Number of channels: dual channel (stereo)
Audio interface: 3.5mm audio interface
Module protection mechanism: power reverse connection protection
Instructions for use:
After the power is turned on, the blue indicator light flashes quickly and enters the Bluetooth-compatible mode; after the "prompt tone" is broadcast, it enters the pairing mode and waits for pairing; the mobile phone Bluetooth-compatible searches for "XY-WRBT" (power amplifier board device name), click "XY-WRBT" After the connection is successfully connected, the "prompt tone" will be played, the indicator light is on, and the mobile phone music can be played. The indicator flashes slowly when playing music; after the Bluetooth-compatible is disconnected, the amplifier board is ready for the next pairing and enters after the "prompt tone" is played Pairing mode is waiting for pairing.
Notes and common problems:
1. For power supply, you can use Micro-USB mobile phone charger, 3.7-4.2V lithium battery, 3.7-24V DC power supply, you can choose one of the three.
2. When using a 3.7V lithium battery for power supply, the battery voltage is lower than 3.3V and the decoder board will automatically shut down, and then short-circuit the on/off contact for 2 seconds to turn it on after re-powering or fully charged.
3. Since there is no lithium battery charging protection circuit on the decoder board, it is recommended to use a lithium battery with a protection board.
4. If your rechargeable battery supports Micro USB direct charging, you can use Micro USB to directly charge the battery.
5. Short-circuit the "on/off contact" for 2 seconds to set the decoder board on/off. For battery-powered situations, turning off when not in use will save power and facilitate modification.
