Mini MP3 Module AC20BP

This module is largely compatible with the YX5200 MP3 module. With this mini MP3 module you can play various formats of music and have it controlled by your Arduino.
The music is on a micro-SD card that you can place in the micro-SD card holder on the shield.
The module can be controlled with separate pins and/or with UART (serial with TX/RX).

Specifications:

• Voltage: 3.2 - 5V
• Uses UART (TX/RX) interface
• Can directly control a (mono) speaker up to 2W with the built-in audio amplifier (8002A chip next to the AC20BP chip)
• Has a 24-bit DAC output for the left and right audio channel (for headphones)
• Compatible with all Arduino's (having a UART connection)
• Has a micro SD card holder for microSD cards up to 32GB (formatted in FAT16 or FAT32)
• Has several pins for direct playback of songs (no serial connection needed)
• Supported MP3, WAV and WMA audio files
• Supported up to 100 folders where each folder can have up to 255 audio files
• Adjustable volume in 30 steps
• Adjustable Equalizer in 6 level's

For more information with the pinout, connections, examples and explanations of the protocol see the following page: DFPlayer Mini (similar product)

Note: The microSD card is not accessible via the serial connection!

Note: The function "power loss mode" or "sleep mode" with command 0x0A does not work with this module and causes the module to crash. Therefore only use command 0x09 with integer value 4 to put the mp3 module in sleep mode.