Bluetooth board csr8675

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Hi all,
Anyone has experience using of Bluetooth board Btm875-b on csr8675 chip (link to aliexpress)?
Please help a beginner, unfortunately the seller's answers are very vague.

The board does not provide the connection of any buttons. How to initiate pairing with another device (a source of bluetooth signal)?

Do I understand correctly that if I take the SPDIF version of this board, I can connect Data and Gnd pin of board directly to the coaxial input of the home AV receiver?

Thank in advance.
 
I´ve this board here, from another vendor with a slightly different blueprint.
The firmware on this board doesn´t support multipoint.
I needed a i2s slave,so i ordered this one to program the device:
USP-SPI on Aliexepress


With the programmer you can flash the Firmware from the post mentioned below.


Here you can find more information about this module:
CSR8675 programming guide w. software and tons of CSR info


With the programmer you can also change the friendly name.


If you go this way, please send me a copy of the firmware dump. It has to be made with the Flash tool, i only dumped the settings with the PS-tool :(
 
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