Update voice 1. Online update: save the bin file to the online downloader, and connect the device through the online downloader to
change the voice. The operation is convenient and fast, and it can be used for the voice replacement of the PCB board.
Storage method
1. There is 220K byte storage space inside the chip (not including the main control program) .
2. The chip main control program and internal storage space can be repeatedly erased and written.
Play mode
1. PWM output: 16-bit PWM pure audio output, which can directly drive 8Ω/0.5W speakers and buzzers,
2. DAC output: 14-bit DAC audio output, can be connected to an external power amplifier.
3. Support up to 4 channels 16K sampling rate mixing.
4. Supports up to 16-channel midi playback (8K sampling rate).
5. Support seamless connection function (audio source needs to be processed, please contact the salesman)(PWM and DAC output can be set by bin file).
Control method
1. One-line serial port control/two-line serial port control.
2. Button function control (functions can be customized according to the actual situation).
(The main control program of serial port control and button control is different, please contact the salesman when placing an order).
Operation instruction
1. Volume adjustment instructions .
2. Loop play instruction .
3. Play fixed voice commands .
4. Play pause command.
Technical specifications
1. Power supply voltage DC2.0~5.5V .
2. Working temperature -20~75 degrees .
3. Humidity 5%~95%.
Application scenarios
1. Devices that require change voice frequently .
2. Outdoor equipment that needs to change the voice content.