Interface Description:
-The power supply can use Micro-USB mobile phone charger, 3.7-4.2V lithium battery, 3.7-24V DC power supply, any one of the three can be selected.
-Short-circuit the “on / off contact” for 2 seconds to set the on / off of the decoder board. For battery-powered situations, shutting down when not in use saves power and facilitates modification.
Instructions:
-After the power is turned on, the blue indicator light flashes quickly and enters Bluetooth mode; after the “beep tone” is broadcast, it enters pairing mode and waits for pairing; the mobile phone Bluetooth finds “XY-WRBT” (power amplifier board device name), click “XY-WRBT” Connect, play the “prompt tone†after the connection is successful, the indicator light is on, you can play mobile phone music, the indicator light flashes slowly when playing music; after the Bluetooth is disconnected, the power amplifier board is ready for the next pairing, and enter the “prompt tone†after entering Pairing mode is waiting for pairing.
-Precautions for using 3.7V lithium battery
-When the battery is used for power supply, the decoder board automatically shuts down when the battery voltage is lower than 3.3V. After re-powering or fully charging, short-circuit the on / off contact for 2 seconds to start up.
-When using battery power, if the battery voltage is too low, there may be “sizzling” noise. In this case, the battery needs to be charged.
-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.
-If your rechargeable battery supports Micro USB direct charging, you can use Micro USB to charge the battery directly.
Note:
-Due to manual measurement, please allow 1-3mm different.
-Due to different displays and different lighting, the image may not reflect the actual colors of the project.
-Thank you for your understanding.
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