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 provides a library along with a connection instruction for Arduino users. |
Technical Specifications:
- 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 for card 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, |
| ADKEY2 | Liberating input |
| 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. |
Application
- Car navigation voice broadcast;
- Road transport inspectors, toll stations voice prompts;
- Railway station, bus safety inspection voice prompts;
- Electricity, communications, financial business hall voice prompts;
- Vehicle into and out of the channel verify that the voice prompts;
- The public security border control channel voice prompts;
- Multi-channel voice alarm or equipment operating guide voice;
- The electric tourist car safe driving voice notices;
- Electromechanical equipment failure alarm;
- Fire alarm voice prompts;
- The automatic broadcast equipment, regular broadcast
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