1. product overview XY-V17B is an intelligent voice module developed by our company. It integrates IO segmentation trigger, UART serial port control, ONE_line single bus serial port control, standard MP3 and other functions; supports MP3, WAV decoding format, and the maximum support for 32G TF card storage, and can update TF card through USB data line to store audio files. 2. 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, signal-to-noise ratio support 85dB. 4, fully support the FAT16/FAT32 file system, the largest support 32G TF card, support 32G U disk. 5, support UART serial port control voice broadcast function, can control play, pause, music selection, volume addition and other functions, the maximum selection of 65535 pieces of music, the baud rate of 9600 bit/s. 6. Support IO trigger function. 8 IO ports trigger 8 tracks individually or 8 IO ports combination triggers 255 tracks. 7, support One_line single bus serial port control, can control playback, pause, selections, volume add and subtract functions. 8, support the 3 configuration IO for pattern selection.