An Arduino Uno/Nano library for a DFR0534 audio module. The library works with SoftwareSerial and is very similar to https://github.com/sleemanj/JQ8400_Serial, but is no fork.
To create a DFR0534 object pass the existing SoftwareSerial object as parameter to the DFR0534 constructor, for example
#include <SoftwareSerial.h>
#include <DFR0534.h>
#define TX_PIN A0
#define RX_PIN A1
SoftwareSerial g_serial(RX_PIN, TX_PIN);
DFR0534 g_audio(g_serial);
...
Examples how to use the library
This library is licensed under the terms of the 2-Clause BSD License Copyright (c) 2024 codingABI.
| Function | Notes |
|---|---|
| decreaseVolume | |
| fastBackwardDuration | |
| fastForwardDuration | |
| getDrive | Returns DFR0534::DRIVEUSB, DFR0534::DRIVESD, DFR0534::DRIVEFLASH or DFR0534::DRIVEUNKNOWN, Example playFileByNumber |
| getDrivesStates | Returns bitmask for DFR0534::DRIVEUSB, DFR0534::DRIVESD, DFR0534::DRIVEFLASH, Example playFileByNumber |
| getDuration | |
| getFileName | Example playFileByNumber |
| getFileNumber | Example playFileByNumber |
| getFirstFileNumberInCurrentDirectory | Example playFileByNumber |
| getRuntime | |
| getStatus | Returns DFR0534::STOPPED, DFR0534::PLAYING, DFR0534::PAUSED or DFR0534::STATUSUNKNOWN, Example playFileByNumber |
| getTotalFiles | Example playFileByNumber |
| getTotalFilesInCurrentDirectory | Example playFileByNumber |
| increaseVolume | |
| insertFileByNumber | |
| pause | |
| play | |
| playCombined | The DFR0534 uses a special two char file name format and fixed folder /ZH for this function. Look a the a the example playCombined or comments to this function in DFR0534.cpp for details |
| playFileByName | The DFR0534 uses a special 8+3 file name format. Before using this function take a look a the example playFileByName or the comments to this function in DFR0534.cpp for details |
| playFileByNumber | Example playFileByNumber |
| playLastInDirectory | |
| playNext | |
| playNextDirectory | |
| playPrevious | |
| prepareFileByNumber | |
| repeatPart | |
| setChannel | Seems make no sense on a DFR0534 audio module |
| setDrive | Supports DFR0534::DRIVEUSB, DFR0534::DRIVESD and DFR0534::DRIVEFLASH |
| setDirectory | Seems not to work |
| setEqualizer | Supports DFR0534::NORMAL, DFR0534::POP, DFR0534::ROCK, DFR0534::JAZZ and DFR0534::CLASSIC |
| setLoopMode | Supports DFR0534::LOOPBACKALL, DFR0534::SINGLEAUDIOLOOP, DFR0534::SINGLEAUDIOSTOP, DFR0534::PLAYRANDOM, DFR0534::DIRECTORYLOOP, DFR0534::RANDOMINDIRECTORY, DFR0534::SEQUENTIALINDIRECTORY and DFR0534::SEQUENTIAL |
| setRepeatLoops | |
| setVolume | Volume level (0 = mute, 30 = max), Example playFileByNumber |
| startSendingRuntime | |
| stop | |
| stopCombined | |
| stopInsertedFile | |
| stopRepeatPart | |
| stopSendingRuntime |
For function details see comments in DFR0534.cpp
Minimal schematic to use this library
| Pin | Connected to |
|---|---|
| TX | Used SoftwareSerial RX |
| RX | Used SoftwareSerial TX* |
| GND | Ground |
| VCC | 3.3-5V |
| SP+ | Speaker + connector |
| SP- | Speaker - connector |
*If your microcontroller runs at 5V use a 1k resistor between RX and SoftwareSerial TX.