声音模块和SD卡、健全的模式，可持续发展模式

Feature Support 1GB SD card max, or 64M SPI flash max Support 4bit ADPCM files and WAV files Sampling rate 6KHz 36KHz for ADPCM format,6KHz 16KHz for WAV format 16bit DAC/PWM audio output Key mode ,MP3 mode and two serial interface mode can be shoose one Copy files to SD card from PC Working voltage 2.7 3.5VDCControl mode MP3 mode: With play/stop/next/previous/V+/V- function Key mode(three groups of voice):Total can connect five key, three for one key one vocie, other two for adjust volume V+/V- Key mode (five groups of voice): Total five key ,one key one voice, and we can set play mode by software: 1.After pressing one key ,one vocie play, then press anther key , it will not play before finishing the former one 2 After pressing one key ,one vocie play, then press anther key , it will play immediately but stop the former one Two line serial mode:can be controled by MCU Application This module can be used in automobile( car bug, parking radar, GPS navigation system), Intelligent home system, house bug, Voice medical devices, household appliances(induction cooker, rice cooker, micro-wave oven), game machines, learning tools(talking book), Intelligent traffic facilities(toll gate, parking lot), communications equipment( telephone), industrial control( elevator ), toys and so on.