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a3b5a23b87
esp-idf/examples/bluetooth/a2dp_sink
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Sagar Bijwe a3b5a23b87 nvs_flash: Version compatibility check for nvs storage 
This change adds a check for compatibility between the nvs version
found on nvs flash and the one assumed by running code during nvs
initialization. Any mismatch is reported to the user using new error
code ESP_ERR_NVS_NEW_VERSION_FOUND.
2018-08-08 12:43:50 +05:30
..
main nvs_flash: Version compatibility check for nvs storage 2018-08-08 12:43:50 +05:30
Makefile remove executable permission from source files 2018-05-29 20:07:45 +08:00
README.md remove executable permission from source files 2018-05-29 20:07:45 +08:00
sdkconfig.defaults bt-a2dp: BT A2DP sink and source selection is now runtime 2018-05-21 14:02:49 +05:30

README.md

ESP-IDF A2DP-SINK demo

Demo of A2DP audio sink role

This is the demo of API implementing Advanced Audio Distribution Profile to receive an audio stream.

For the I2S codec, pick whatever chip or board works for you; this code was written using a PCM5102 chip, but other I2S boards and chips will probably work as well. The default I2S connections are shown below, but these can be changed in menuconfig:

ESP pin I2S signal
GPIO22 LRCK
GPIO25 DATA
GPIO26 BCK

If the internal DAC is selected, analog audio will be available on GPIO25 and GPIO26. The output resolution on these pins will always be limited to 8 bit because of the internal structure of the DACs.

After the program is started, other bluetooth devices such as smart phones can discover a device named "ESP_SPEAKER". Once a connection is established, audio data can be transmitted. This will be visible in the application log including a count of audio data packets.