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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
2. MCU serial control application circuit
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 play, the relay power IO1, IO2 short-circuit playback paragraph 6. Optocoupler
The picture shows the IO input, the connection is the IO low-level connection optocoupler 3 feet, high-digit connection 4 feet, the figure for the playback of the first 14 segment.