Enum Command

#[repr(u8)]
pub enum Command {
    Next = 1,
    Previous = 2,
    PlayTrack = 3,
    VolumeUp = 4,
    VolumeDown = 5,
    SetVolume = 6,
    SetEQ = 7,
    PlayLoopTrack = 8,
    SetPlaybackSource = 9,
    EnterSleepMode = 10,
    EnterNormalMode = 11,
    Reset = 12,
    Play = 13,
    Pause = 14,
    PlayTrackInFolder = 15,
    ConfigAudioAmp = 16,
    PlayLoopAll = 17,
    PlayTrackInMp3Folder = 18,
    StartAdvertisement = 19,
    PlayTrackLargeFolder = 20,
    StopAdvertisement = 21,
    Stop = 22,
    PlayLoopFolder = 23,
    PlayRandom = 24,
    LoopCurrentTrack = 25,
    SetDAC = 26,
    NotifyPushMedia = 58,
    NotifyPullOutMedia = 59,
    NotifyFinishTrackUSBFlash = 60,
    NotifyFinishTrackSD = 61,
    NotifyFinishTrackUSBHost = 62,
    QueryAvailableSources = 63,
    NotifyError = 64,
    NotifyReply = 65,
    QueryStatus = 66,
    QueryVolume = 67,
    QueryEQ = 68,
    ReservedQueryPlaybackMode = 69,
    ReservedQuerySwVersion = 70,
    QueryTrackCntUSB = 71,
    QueryTrackCntSD = 72,
    ReservedQueryTrackCntPC = 73,
    ReservedQueryKeepOn = 74,
    QueryCurrentTrackUSBFlash = 75,
    QueryCurrentTrackSD = 76,
    QueryCurrentTrackUSBHost = 77,
    QueryFolderTrackCnt = 78,
    QueryFolderCnt = 79,
}

Commands supported by the DFPlayer module

Variants

Next = 1

Play next file

Previous = 2

Play previous file

PlayTrack = 3

Specify Track number to play (1-2999)

VolumeUp = 4

Increase Volume

VolumeDown = 5

Decrease Volume

SetVolume = 6

Set specific volume value, 0-30

SetEQ = 7

Select equalizer

PlayLoopTrack = 8

Select track to play in loop

SetPlaybackSource = 9

Select the Playback source (USDB/SD)

EnterSleepMode = 10

Enter Sleep/StandBy Mode

EnterNormalMode = 11

Normal mode per DFRobot, but it’s reported it does nothing

Reset = 12

Reset the device

Play = 13

Start Playback

Pause = 14

Pause Current Playback

PlayTrackInFolder = 15

Specify Track to play in a folder, 99 folders 255 tracks each max

ConfigAudioAmp = 16

Configure the audio amplifier gain settings, MSB enables amp, LS sets gain 0-31

PlayLoopAll = 17

Play all tracks in a loop

PlayTrackInMp3Folder = 18

Play track number in MP3 folder, max 65536 tracks, 3000 recommended max

StartAdvertisement = 19

Play track number in ADVERT folder, max 3000 tracks

PlayTrackLargeFolder = 20

Play track of large folder, 1-3000 valid names

StopAdvertisement = 21

Stop playing ADVERT track if one is active

Stop = 22

Stop all playback including advertisement

PlayLoopFolder = 23

Play tracks from a folder on repeat, max 99 folders, 255 files each

PlayRandom = 24

Play random tracks from all media available in the current source

LoopCurrentTrack = 25

If a track is playing, control loop playback enable (0x1 enable, 0x0 disable)

SetDAC = 26

Control whether the DAC is powered on or off

NotifyPushMedia = 58

Only sent by module when media is connected

NotifyPullOutMedia = 59

Only sent by module when media is removed

NotifyFinishTrackUSBFlash = 60

Only sent by module when track in USB Flash finished playing

NotifyFinishTrackSD = 61

Only sent by module when track in SD card finished playing

NotifyFinishTrackUSBHost = 62

Only sent by module when track in USB Host link stopped playing

QueryAvailableSources = 63

List the available sources. For the DFPlayer Mini, it’s essentially only the SD card

NotifyError = 64

Only sent by module when an error occurs

NotifyReply = 65

Sent as ACK response when feedback is enabled

QueryStatus = 66

Returns status of module

QueryVolume = 67

Returns current volume setting

QueryEQ = 68

Returns current EQ setting

ReservedQueryPlaybackMode = 69

Returns current playback mode

ReservedQuerySwVersion = 70

Returns software version

QueryTrackCntUSB = 71

Returns number of tracks on USB storage

QueryTrackCntSD = 72

Returns number of tracks on SD card

ReservedQueryTrackCntPC = 73

Returns number of tracks on PC

ReservedQueryKeepOn = 74

Query the keep-on setting

QueryCurrentTrackUSBFlash = 75

Returns current track number on USB flash

QueryCurrentTrackSD = 76

Returns current track number on SD card

QueryCurrentTrackUSBHost = 77

Returns current track number on USB host

QueryFolderTrackCnt = 78

Returns number of tracks in current folder

QueryFolderCnt = 79

Returns number of folders available

Trait Implementations

impl Clone for Command

fn clone(&self) -> Command

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Command

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PartialEq for Command

fn eq(&self, other: &Command) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl TryFrom<u8> for Command

type Error = ()

The type returned in the event of a conversion error.

fn try_from(value: u8) -> Result<Self, Self::Error>

Performs the conversion.

impl Copy for Command

impl StructuralPartialEq for Command