Master chip CSR8645 Bluetooth stereo audio module can call the Bluetooth headsetCan be connected to two mobile phone CSR better sound Bluetooth 4.0, through the wall effect is good, APT-x high quality transmissionCSR8645 software version introduction:1. Key: There are 6 function keys: POWER-EN, PLAY, VOL +, VOL-, PREV, NEXT.
Key functions are described below:
The same time as the above-POWER-EN: When using the switch control module switch machine, by turning the switch, whenPOWER-ENWhen connected to BAT, the module is powered on;
whenPOWER-ENWhen the BAT is disconnected, the module is shut down and is normally used when the battery is poweredThe
When using the module power on, you only need toPOWER-ENSeries 10K resistor connected to the BAT, you can achieve the module power on, usually used in the external power supply.
PLAY: Play / Pause (short press), connect / hang up (long press, slightly longer), re-paired (long press)
VOL +: volume plus
The same time as the above-VOL-: volume minusThe same time as the above-PREV: Previous songThe same time as the above-NEXT: next song2. LED: pairing state, double lights alternately flashing, pairing, single light flashing;3. USB sound card function;4. 3.2V low alarm, 3.0V automatic shutdown, (to achieve the AMS1117 power supply);
5.The maximum charge current is set to 250MA, Full of lights on the extinguished, bright another light (personal recommended with the
charging module, fast);
6. No connection has been in the match;7. can be connected to two mobile phones;8. MUTE: Audio amplifier EN control pin, when in silence, after a period of time, the output low; when playing, the output high (1.8V).
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