MP3 player module trigger / serial port control with voice audio playback card

Features

• It supports MP3 and WAV decoding formats.
• Supported sampling rate (KHz): 8 / 11.025 / 12/16 / 22.05 / 24/32 / 44.1 / 48
• 24-bit DAC output, support 90dB dynamic range, support 85dB signal-to-noise ratio.
• Fully support FAT16 / FAT32 file system, maximum support for 32Gb SD card
• Comes with 5W class D power amplifier, can directly drive 4Ω, 3 ~ 5W speakers.
• UART serial port control voice transmission function, can control playing, pausing, selecting songs, adding and subtracting volume, etc.
• The largest selection of 65,535 songs, 9600 bit / s bit rate.
• Support IO trigger play function, 8 IO ports trigger 8 tracks or 8 IO ports trigger 255 tracks.
• Support One_line single bus serial port control, can control play, pause, song selection, volume add and subtract and other functions.
• Support 3 configuration I / O to select up to 7 working modes, selector settings are simple.
• Module interface and function definition