- Master control chip CSR8645 bluetooth stereo audio module Can phone bluetooth headset
- Can be connected at the same time 2 mobile phone CSR bluetooth 4.0 sound quality better, wall effect is good, APT - x high quality transmission
Introduce CSR8645 software version:
- 1. Keys: a total of 6 function keys: POWER - EN, PLAY, VOL +, VOL -, PREV, NEXT.
- Keys function is introduced as follows:
- POWER - EN: switche control module switch machine, through the toggle switch, when the POWER - EN to BAT, boot module;
- When the POWER - EN disconnect BAT, module shutdown, usually using battery POWER.
- USES the module is powered on, when the phone is switched on POWER - EN series 10 k resistor can only be connected to the BAT, the module can be realized on the electric switch on, usually used in external POWER supply.
- PLAY: PLAY/pause (short press), pick up/hang up (long press, a slightly longer time), to match (long press)
- VOL + : volume plus
- VOL - : the volume reduction
- A song on PREV:
NEXT: the NEXT song
- 2. LED: matching state, double lights flashing, paired, single lamp flashing;
- 3. USB sound card function;
- 4. 3.2 V low power alarm, automatically shut down, 3.0 V (realized the AMS1117 power supply);
- 5. Set to maximum charging current is 250 ma, filled the lights are out, another light (personal advice with the charging module, fast);
- 6. No connection is always in pairs;
- 7. Can be connected at the same time two mobile phones;
- 8..mute: audio amplifier EN control foot, when in a quiet, after a period of time, the output low level;When playing, output high level (1.8 V).