VS1053 MP3 Board User Guide

Overview

The VS1053 audio decoding module can not only play various music formats, but also supports OGG real-time encoding and recording.
MP3 development adopts AVR processor, and SPI interface is reserved on the board, which is convenient for connection and use.

Specifications

Provide SPI interface, control signal line leads
Headphone and speaker output interface x1
Microphone for recording x1
1ine_in input interface x1
Power Indicator
Working voltage: DC 5V, capacitor filter
3.3V and 1.8V LDO chip AMS-1117 on the carrier board, providing a maximum current of 800mA
Crystal oscillator frequency: 12.288MHz

Interface Description

HJ: 3.5mm headphone jack interface
MC: Pickup mic available for recording
LINE IN: Input mode selection, used to select the audio source for ADPCM recording,
If it is 0, the microphone input pins MICP and MICN are used,
If 1, LINEIN is used
SPI: SPI download interface

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