MP3 Player Module Mini MP3 Player Audio Voice Module Board BY8301-16P 32Mbit 4Mbyte Support USB Download

Features: MP3,WAV file format:Supports sampling rates 8 ~ 48K,8 ~ 320Kbps bit rate audio files UART interface:Standard serial port, 3.3V TTL level,baud rate 9600 Capacity:4M byte Standard 2.54mm pin header, DIP16 package 24 bit DAC output, dynamic range support 90dB, SNR support 85dB. Application areas Industrial control areas: industrial, control equipment; Intelligent transportation equipment: toll stations, car parks, car voice prompts; Advertising industry: advertising language broadcast; Access control, attendance: the door has been opened and other voice prompts; Security industry: human induction tips, safe voice prompts, warm tips; Senior toys: swing machine, crash, game and so on; Medical electronics: Device voice prompts; Education communication: educational equipment, communication electronics; Application circuit diagram Note : the master chip IO port for all 3.3V voltage, when other microcontrollers connected to pay attention to voltage matching! 1. key control application circuit K1-K21 corresponds to 1-21 segment voice 2. MCU serial control application circuit Above for the standard UART asynchronous serial port connection applications, this application is very flexible, including playback, pause, up and down, volume addition and subtraction, song selection, wide and so on. Can be used single-chip, computer serial control, but also through the TTL to RS485 adapter board for 485 control . 3. MCU IO port direct control application circuit Through the microcontroller through the low pulse signal (equivalent to press the button to lift) can trigger IO1-I06, to achieve one-on-six playback of voice, and the above 3IO selectable control mode. 4. For some customers may use the level of the trigger play, you can use the relay control, you can also use the lotus control, the following provides the connection schematic The picture shows the IO1 combination