CSR8635 Bluetooth module, CSR8635 Bluetooth solution

Software version introduction: . Buttons: There are three function keys: B+, -,.
The key functions are introduced as follows:
When using a switch to control the module on and off: by turning the switch, when B is connected to B, the module will be powered on. When B is disconnected from B, the module will be powered off. It is usually used when powered by battery. .
When using the module to power on and start up: Just connect the series resistor B to B, and the capacitor B in series to realize the module power on and start up. It is usually used when external power supply is used.
: Play/pause (short press), answer/end calls (long press, slightly longer), re-pair (long press)
+: Volume up
-: Volume down< br/>: Previous song
: Next song
. In the pairing state, the double lights flash alternately. After pairing, the single light flashes
. B sound card function (actual test, the sound effect is not bad)< br/> ..Low battery alarm, 3. Automatic shutdown, (realizes power supply)
. The maximum charging current is set to , the light will go out when it is full, and another light will turn on
. When there is no connection Always in pairing
. Can be connected to two mobile phones at the same time
. The audio amplifier control pin, when muted, outputs low level after a period of time and outputs high level (.) when playing.