History

Tian Hao ee787085f9 component/bt : decrease memory consumption by conn number 1. BLE only with 9(max) connection will decrease 3K DRAM 2. BR/EDR only with 7(max) connection will decrease 16K DRAM 3. Any of BLE or BR/EDR connection number decrease will also decrease DRAM consumption 4. Decrease one BLE connection will save about 1KB DRAM 5. Decrease one BR/EDR ACL connection will save about 1.2KB DRAM 6. Decrease one BR/EDR SCO/eSCO will save 2KB DRAM. 7. fix some definition and kconfig 8. remove 1.2k of vhci tx cache and make .bss & .data to heap about 1.4K 9. modify BT Reserved Memory size and modify example to support new bt kconfig		2018-08-14 02:29:17 +00:00
..
main	nvs_flash: Version compatibility check for nvs storage	2018-08-05 00:00:56 +00:00
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	component/bt : decrease memory consumption by conn number	2018-08-14 02:29:17 +00:00

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.