DFPlayer mini MP3 player with microSD slot

Description

A module that allows you to play music files directly from micro SD card via the built-in slot. It communicates through the UART interface - pins RX and TX, with a microcontroller. DFPlayer works with Mp3, WAV, WMA, supports file systems FAT16 and FAT32.

 

    

The product is compatible with Arduino

The manufacturer providesa libraryalongwith a connection instructionfor Arduino users.

 

Specification

• Supply voltage: from 3.2 V to 5.0 V
• Supports sampling rate: 8 / 11,025 / 12 / 16 / 22,05 / 24 / 32 / 44,1 /48 kHz
• Has a built-in DAC converter with a resolution of 24 bit with a dynamic range of 90 dB and 85 dB SNR
• The device has a volume control in 30 levels with 6-level equlizer
• Communicates via interface UART - RX, TX
• Supported formats:MP3 / WAV /WMA
• Files can be sorted in 100 folders, 255 songs in each
• Slot forcard microSD
• Supports cards microSD with capacity up to 32 GB with the file system FAT16 or FAT32
• Leads: soldered goldpin connectors 2.54 mm pitch

 

Insights

 

Pin Description VCC Voltage in the range from 3.2 to 5.0 V. RX Serial interface UART - receiver. TX Serial interface UART - transmitter. DAC_R Audio output for headphones or amplifier - right. DAC_L Audio output for headphones or amplifier - left. SPK2 Output for speaker with power up to 3 W. GND Mass. SPK1 Output for speaker with power up to 3 W. IO1 Liberating input, short hold, switches track, long silences. GND Mass. IO2 Liberating input, short hold, switches track, long increases the volume. ADKEY1 Liberating input, details inthe user guide. ADKEY2 Liberating input, details inthe user guide. USB+ Data line of interface USB D+. USB Data line of interface USB D-. BUSY The status output. Low state means that the currently playing track, high on the contrary.

 

Useful links

• The website of the manufacturer DFRobot DFR0299
• Library for Arduino
• Documentation
• Documentation #2
• User manual WikiDoc