CSRA64215 Bluetooth Audio Module, BT4.2




  • CSRA64215 is a Bluetooth audio module from qualcomm CSR
  • Bluetooth version V 4.2
  • Support TWS features
  • Support APTx APTx-ll (low latency) feature, provide higher quality audio music streaming. The receiver end must also support this to work together.
  • Support I2S DAC output, or differential analog output, but firmware only allow one kind to be used, default firmware, module called “BT speaker”
  • Extra features: A2DP V1.3, AVRCP V1.6, HFP v1.6, HSP v1.2, DI v1.3
  • Support by our programmer/debugger, can change name, address, etc.
  • On board 4MB SPI Flash
  • There are slightly cheaper module in market too, you can look carefully on the board to see differences.

It is possible reflash the firmware, but not ganurtee, we are not expert on this.

More features, pin definitions, etc please see here.

BT Audio compare guide could see here.

Additional information

Weight N/A

Differential Audio Analog, I2S

Bluetooth Solutions




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