JDY-62 4.0 Bluetooth Audio Receiver Module Stereo Dual Channel
The Bluetooth audio module requires very high power, otherwise it will affect the audio quality. The power supply must be provided if the LC filter circuit, especially the switching power supply.
Module size
PCB : 25*15.5*2.4MM
Pin pitch: 2.54MM

common problem:
1, search less than blue:
Generally caused by power interference, the power line must be coupled with the LC filter circuit.
2, whether to support 3.7V power supply:
The module is powered by 5V by default. You can replace the diode on the JDY-62 module with the 0805 OR resistance, or use a wire to short circuit, so that you can use a lithium battery
3, Bluetooth signal is too weak
Do not route or cover copper under the antenna of the Bluetooth module. There must be no metal shielding around the antenna.
4, the current sound is too loud
Generally caused by the power supply interface interference, it is recommended that the power amplifier wiring is not too long, the Bluetooth port and the power port are separated
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