Demand:
1.Use a2dp_ Source to play the sound;
2. Establish TCP server with WiFi AP mode;
3. Control a2dp_ Source through WiFi connect to speaker or disconnect to speaker;
phenomenon:
1. Turn on the Bluetooth and Connected to the speaker first, and then connected the WiFi, both of which can work normally;
2. Disconnect the speaker power after WiFi and Bluetooth work normally, and WiFi will be disconnected immediately; (abnormal)
3. Turn on Bluetooth but do not connect to the speaker, WiFi cannot Connected to the speaker; (abnormal)