Arduino dy-sv17f automatic voice broadcast

Voice Announcements DY-SV17F

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DY-SV17F brief introduction

DY-SV17F It is an intelligent voice module , Integrate IO Segment trigger ,UART Serial port control ,ONE_line Single bus serial port control , standard MP3 etc. 7 Working mode ; On board 5W D Class amplifier , Can drive directly 4Ω,3~5W horn ; Support MP3,WAV Decoding format , On board 32Mbit（4MByte）flash Storage , It can be done by USB Connect the data cable to the computer and update the audio file .
This time it will be IO Segment trigger to realize automatic voice broadcast

Operating mode description

1. IO Portfolio model 0：
   MCU control I/O Combination trigger （ Low level active ） Release after the specified track （IO0-IO7 Restore high level ）, Stop after playing the current track ; Trigger again in the middle of playing , Play a new track , The playback ends and stops ; If it keeps triggering （ Do not release level ）, Loop Playback .
2. IO Portfolio model 1：
   MCU control IO Combination trigger （ Low level active ） Specified track , Play the specified track repeatedly , Level release （IO0-IO7
   Restore high level ） Stop playing . Release level during playback , Stop playing immediately .
3. IO Independent mode 0：
   IO0-IO7 Independent control 8 Track , IO Trigger （ Low level active ） Release after the specified track （IO0-IO7 Restore high level ）, Stop after playing the current track ; Trigger again in the middle of playing , Play a new track , The playback ends and stops ; If it keeps triggering （ Do not release level ）, Loop Playback .
4. IO Independent mode 1：
   IO0-IO7 Independent control 8 Track ,IO Trigger （ Low level active ） Specified track , Play the specified track repeatedly ,
   Level release （IO0-IO7 Restore high level ） Stop playing . Release level during playback , Stop playing immediately .
5. UART Serial mode ：
   adopt UART Serial transmission
   Start code - Instruction type - Data length （n）- data 1－ data n－ And inspection (SM)
   To realize the voice broadcast of the module 、 Last song 、 Next song and other functions .
6. One_line Single bus serial port mode ：
   Through a specific timing , Send to the module 0 Code or 1 The combination of codes realizes the voice broadcasting of the module 、 Last song 、 Next song and other functions .

Below by Arduino control DY-SV17F Of “IO Independent mode 0” an

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IO Independent mode 0

Circuit configuration

The pull-up resistance in the above figure cannot be omitted .

connection

Set up the peripheral circuit as required

Arduino UNO	DY-SV17F
D9	IO0
D8	IO1
D7	IO2
D6	IO3
D5	IO4
D4	IO5
D3	IO6
D2	IO7
5V	5V
GND	GND

Pull it out first Arduino UNO On 5V The line of the interface And then use USB Data cable handle DY-SV17F Connect the module to the computer ,
Turn on my computer , I will find that my computer has an additional name “U disc ” Drive letter of , The space size is less than 4M, This is where we put the audio files , So pay attention to the size of the audio file . Import the audio file that needs to be broadcast , Note that the naming format is “0000X.mp3” among X by 1-8 The number of

drive

Start the experiment when everything is ready
By changing Arduino UNO Of IO Port level to drive DY-SV17F Broadcast the pre stored audio file

According to the manual ,IO Independent mode requires DY-SV17F Of 8 and IO The mouth is raised by default , Then by pulling down one IO Select the level of the port to play the IO Audio file corresponding to port .
Then we can create a function specifically for DY-SV17F Of 8 individual IO Mouth pull up

void INIT()
{
    
  digitalWrite(IO0,HIGH);
  digitalWrite(IO1,HIGH);
  digitalWrite(IO2,HIGH);
  digitalWrite(IO3,HIGH);
  digitalWrite(IO4,HIGH);
  digitalWrite(IO5,HIGH);
  digitalWrite(IO6,HIGH);
  digitalWrite(IO7,HIGH);
  }

Every time you play an audio, you need to call this initialization function to raise all IO mouth , send DY-SV17F Restore default state
Now let's test the playback effect
The main function

void loop() {
    
  // put your main code here, to run repeatedly:
  Play(1);
  delay(1000);
  Play(2);
  delay(1000);
  Play(3);
  delay(1000);
}

Above is play DY-SV17F In storage 1-3 Audio files , Playback interval of each file 1 Second ,
If you need to play other audio files, just change

Play(X);

“X” It refers to the number of audio files that need to be played .
Let's see the effect

DY-SV17F Audio test