Product characteristics:
1. Support mp3, wav decoding format.
2. Support sampling rate (kHz): 8 / 11.025/12/16/22.05/24/32/44.1/48.
3. 24 bit DAC output, dynamic range support 90dB, SNR support 85dB.
4. It fully supports FAT16 / FAT32 file system, supports 32g TF card and 32g USB flash disk.
5. Support UART serial port control voice broadcast function, can control playback, pause, music selection, volume addition and subtraction functions, the maximum selection of 65535 tracks, baud rate of 9600 bit / s.
6. Support IO trigger function. 8 tracks are triggered by 8 IO ports individually or 255 tracks are triggered by 8 IO ports.
7. Support one_ Line single bus serial port control, can control playback, pause, music selection, volume addition and subtraction functions.
8. Support three configuration io for mode selection.