A2DP source, connection to two bt speaker

rob_bits
Posts: 2
Joined: Wed Jun 13, 2018 5:15 am

A2DP source, connection to two bt speaker

Postby rob_bits » Wed Jun 13, 2018 8:15 pm

Hello all,

I am interesting in the functionality of stream data at the same time to multiple A2DP SINK devices. More precisely I want to stream audio from ESP32 to two bluetooth speaker. Is it possible with the current esp-idf?

Could be the A2DP_source example code modified to work with two sink devices?

I went through the current source example and I think it can be modificated to discover multiple devices and connect to them, but will it work in the end?

Can be the esp_a2d_source_connect() function called if we already connected to one sink device? Will the previous connection maintained?

If we can connect multiple sink devices already then what about the following code (in /a2dp_source/main/main.c line 277 - 280):

/* initialize A2DP source */
esp_a2d_register_callback(&bt_app_a2d_cb);
esp_a2d_source_register_data_callback(bt_app_a2d_data_cb);
What will be the role of the data callback function? Will it stream the data to both of the connected device? Or how can we handle which data goes where?

Rob

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