BY8301 16P Voice Module Manual V1.2x Edmp3 V1.2

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Shenzhen Balway Electronic

BY8301-16P voice module manual V1.2

Shenzhen Balway Electronic Technology Co., Ltd.

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Shenzhen Balway Electronic

BY8301-16P voice module manual V1.2

BY8301-16P voice module manual
1、Overview
BY8301-16P Shenzhen Balway Electronic Technology Co., Ltd. is a self-developed a new type of high-quality MP3
compact module, using BY8301-SSOP24 MP3 main chip, support MP3, WAV format double decoding. SPI-FLASH module
built as a storage medium, with a Microc USB interface, no PC software, you can connect your computer free replacement
FLASH audio content via data cable. And withinSet 3W amplifier, can directly drive 3W speakers, easier to use.

2、Product Features










supports MP3, WAV audio formats with high quality, beautiful sound.
24-bit DAC output, support dynamic range 90dB, SNR support 85dB.
Micro USB interface to update the voice files, without having to install the PC software. Support XP and WIN7 system.
supports 21 voice segment one trigger playback, 3 IO port select eight kinds of hardware trigger wider application.
support asynchronous serial UART Control: Support play, pause, and down song, volume addition and subtraction,
playing selections, advertising spots and so on.
built-in volume, track, EQ down memory function.
maximum support 16M byte capacity SPI FLASH. For example GD25Q16 [2M bytes], GD25Q128 [16M bytes]
comes with 3W amplifier, external speakers directly to complete the play; customers can also add a single,
dual-channel amplifier.
standard 2.54mm pin spacing DIP16 package, compact appearance.

3、Technical Specifications
Name

Parameter

MP3, WAV file
format

supports sample rates 8 ~ 48K, the bit rate of 8 ~ 320Kbps audio files

USB 2.0 interface

standard (Micro USB interface to connect a computer to download the voice can also be
read U disk contents)

UART interface

standard serial port, 3.3V TTL level, baud rate 9600

Input voltage

3.6V-5V (recommended value 4.2V)

Quiescent
current

15MA (entire module)

Power amplifier

connected 3W / 4Ω or 2W / 8Ω speaker

Size

21mm * 18mm

Operating
temperature

-40 ℃～70 ℃

Humidity

5%～95%

4、Module pin map

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1
2
3
4
5
6
7
8

BY8301-16P voice module manual V1.2

SPK2
GND
SPK1
IO1
DACR
IO2
DACL
IO3
PLAY _LED IO4
VCC
IO5
TX
IO6
RX
BUSY

16
15
14
13
12
11
10
9

BY 8301-16P
Pin No.

Pin Name

Function Description

Remarks

1

SPK2

external mono speaker

then 3W / 4Ω or 2W / 8Ω, passive
speaker

2

SPK1

external mono speaker

then 3W / 4Ω or 2W / 8Ω, passive
speaker

3

DACR

DAC right channel output

external amplifier, headphones

4

DACL

DAC left channel output

external amplifier, headphones

5

PLAY_LED

play indicator

standby light is playing flashes

6

VCC

the positive power supply

3.6-5V

7

TX

UART asynchronous serial data
output

3.3V TTL level

8

RX

UART asynchronous serial data input

3.3V TTL level

9

BUSY

when playing high output, low stop

busy signal

10

IO6

trigger input port 6

grounding trigger

11

IO5

trigger input port 5

grounding trigger

12

IO4

trigger input port 4

grounding trigger

13

IO3

trigger input port 3

grounding trigger

14

IO2

trigger input port 2

grounding trigger

15

IO1

trigger input port 1

grounding trigger

16

GND

negative power

systematically

5、Module package size

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BY8301-16P voice module manual V1.2

6、IO port button trigger Description
This module has six Trigger IO ports, supports up to 21 segments one trigger button to play. By three IO ports through
3.3K resistor to ground or not connected to eight kinds of control mode selection for a variety of applications.
Resistor settings control mode in front of the module, marked with ABC character defaults module 010, the customer
can go back voluntarily modify:

1 foot

Section 21 key one application:
IO1

One play, song 1

IO2* IO3

One play, song 12

IO2

One play, song 2

IO2* IO4

One play, song 13

IO3

One play, song 3

IO2* IO5

One play, song 14

IO4

One play, song 4

IO2* IO6

One play, song 15

IO5

One play, song 5

IO3* IO4

One play, song 16

IO6

One play, song 6

IO3* IO5

One play, song 17

IO1* IO2

One play, song 7

IO3* IO6

One play, song 18

IO1* IO3

One play, song 8

IO4* IO5

One play, song 19

IO1* IO4

One play, song 9

IO4* IO6

One play, song 20

IO1* IO5

One play, song 10

IO5* IO6

One play, song 21

IO1* IO6

One play, song 11

3 IO port selection control mode application (3.3K ground zero, to float a), the default value 010:
IOA

IOB

IOC

One key trigger function (the button is pressed both effective without release)
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BY8301-16P voice module manual V1.2

0

0

0

Key grounded, triggering stop playing again, half-way trigger is invalid; long time
exceed the current song, loop, finished playing again in the middle lift stop

0

0

1

Key grounding, ON / OFF function. Click the play, during playback, the trigger again to
stop, and then trigger the stop state is played from the beginning, once you finish
playing the current song stops

0

1

0

Ground button, click on the ring, ring in the process, the press will be interrupted,
and then re-start play, finished play once then stop

0

1

1

Ground button, click on the ring, then the process can not be interrupted in the ring
until the ring have been exhausted, then finished only effective response

1

0

0

Hold trigger level, has been pressing the play button again, lift the stop button
halfway (not for serial control in this mode)

1

0

1

Trigger level to maintain circulation, has been pressing the button loop, lift the stop
button halfway (not for serial control in this mode)

1

1

0

Standard MP3 mode

1

1

1

IO1

Play / Pause / long press 2 seconds to stop the current song

IO2

Under a (short press) / Volume + (long press)

IO3

Under a (short press) / Volume + (long press)

IO4

Volume +

IO5

Volume -

IO6

Hold trigger level, has been pressing the play button, lift the stop button
(this function is not down song)

Application-specific features
IO1

Key grounded, triggering stop playing again, half-way trigger is invalid; long
time exceed the current song, loop, finished playing again in the middle lift
stop

IO2

Press a short / long press the volume +

IO3

On a short press / long press volume -

IO4

Volume +

IO5

Volume -

IO6

PLAY button, press play, during playback, then will break, and then went
heavy head start playing, once you finish playing stops

7、Applications









industrial control areas: industrial control equipment;
Intelligent Transportation Equipment: toll stations, car parks, car voice prompts;
advertising industry: advertising language broadcast;
access control, time and attendance: The door has been opened, such as voice prompts;
security industry: the human body sensors prompt, safe and voice prompts, Tips;
advanced toys: Swing machine, hit the crash, game consoles;
Medical Electronics: Equipment voice prompts;
Communication Education: Educational equipment, electronic communications;

8、Serial Control Protocol

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BY8301-16P voice module manual V1.2

BY8301 built-in standard asynchronous serial UART interface, are 3.3V TTL level interface. Can be converted to RS232
level through the MAX3232 chip. Communication data format is: Start bit: 1; data bits: 8; Parity: None; Stop Bits: 1. Using
the computer serial debugging assistant, you need to set the correct serial port parameters, settings shown:

Protocol command format:
Start code

length

opcodes

parameters

check code

end code

0X7E

see below

see below

see below

see below

0XEF

Note: all the data as a hexadecimal number."Length" refers to the length of the + operator code +
Parameter Length + checksum,"Checksum" refers to the value of the length of the operation code, parameters negated,
customers can get through checksum calculator.
For example, playing instructions for 7E 03 01 02 EF checksum 02 is obtained by:
First, open the calculator programmer mode selection;
Then select the hex, double word;
Finally, click to calculate 3 Xor 1 = 2

Command sent successfully returned OK, stop the song finishes playing return STOP.

8.1 Instruction List
Communications Control Instructions (Another company a BY8001-16P TF card card voice module)
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Detailed
CMD

BY8301-16P voice module manual V1.2

Corresponding function

Parameters

0x01

Play

no

0x02

Pause

no

0x03

Under

no

0x04

On

no

0x05

Volume increase

no

0x06

Volume reduction

no

0x07

Standby / work

no, enters standby current 10MA

0x09

Reset, no

no

0x0A

Fast-forward,

no, FLASH no function

0x0B

Rewind

no, FLASH no function

0x0E

Stop

no

0x31

Set the volume

0-30 adjustable (off memory)

0x32

Setting EQ

0-5 (NO\POP\ROCK\JAZZ\CLASSIC\BASS) (off memory)

0x33

Setting cycle mode

0-4 (All/Folder/single player/random/broadcast again)

0x34

Folder switching

0 (a folder), 1 (next folder)

0x35

Device switching

0x41

Choose to play tracks

0（U），2（FLASH）
1-255 first (off memory)

0x42

Specify a folder track is playing

high eight for the folder number (00-99), the low eight
song name (001-255), FLASH no function

0x43

Spots feature

1-65536, FLASH no function

0x44

Spots designated folder inside the high eight for the folder number (00-99), the low eight
songs
song name (001-255), FLASH no function
Combination play

Combination play different tracks will be sent
continuously aired stop, maximum support 10 segments

Communications query
Detailed
CMD

Corresponding function

Parameter

0x 10

Query playing status

0 (stop) 1 (Play) 2 (Pause) 3 (fast forward) 4 (rewind)

0x 11

Query volume.

0-30 (off memory)

0x 12

Query the current EQ

0-5 (NO\POP\ROCK\JAZZ\CLASSIC\BASS) (off memory)

0x 13

Query the current play mode

0-4 (All/Folder/single player/random/broadcast again)

0x 14

Query version

1.0

0x 16

Query U disk total file totals

1-65535

0x 17

The total number of files query
FLASH

1-255

0x 18

Query the current playback device

0:USB

0x 1A

Current track queries U disk

1-65536

0x 1B

The current track queries FLASH

1-255

0x 1C

Query the currently playing song
time

Anti-back time (in seconds)

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BY8301-16P voice module manual V1.2

0x 1D

Query the current total time playing
songs

Anti-back time (in seconds)

0x 1E

Query the currently playing song
song

In return the song name (SPI internal songs can not be
anti-back)

0x 1F

Query the current playback folder
within the total number of

0-65536(SPI internal songs can not be anti-back)

8.2 Control instructions detailed instructions
8.2.1 Play
Startcode

Length

Opcode

Checksum

End code

7E

03

01

02

EF

Send the command to Play music, pause or stop state to start playback.
8.2.2 Pause
Startcode

Length

Opcode

Checksum

End code

7E

03

02

01

EF

Send the command to pause playback music.
8.2.3 Next song
Startcode

Length

Opcode

Checksum

End code

7E

03

03

00

EF

This command can trigger the next song Play music while playing the last piece of music, send the command to
trigger the first song Play music.
8.2.4 On song
Startcode

Length

Opcode

Checksum

End code

7E

03

04

07

EF

This command can trigger the next song Play music while playing the first song to music, send the command can be
triggered to play the last piece of music.
8.2.5 Volume +
Startcode

Length

Opcode

Checksum

End code

7E

03

05

06

EF

Chip has 30 adjustable volume, send a command, a volume increase.
8.2.6 Volume Startcode

Length

Opcode

Checksum

End code

7E

03

06

05

EF

Chip has 30 adjustable volume, send a command, a volume reduction.
8.2.7 Standby / normal operation
Startcode

Length

Opcode

Checksum

End code

7E

03

07

04

EF

Send this instruction chip into standby status at work, in the standby state needs to send commands to wake the chip to
work properly again.
8.2.8 Reset
Startcode

Length

Opcode

Checksum

End code

7E

03

09

0A

EF

Send this instruction resets the chip.
8.2.9 Fast Forward
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BY8301-16P voice module manual V1.2

Startcode

Length

Opcode

Checksum

End code

7E

03

0A

09

EF

Sends a command to fast forward the music for some time.
Note: FALSH not have this feature.
8.2.9 Rewind
Startcode

Length

Opcode

Checksum

End code

7E

03

0B

08

EF

Sends a command to rewind the music for some time.
Note: FALSH not have this feature.
8.2.10 Stop
Startcode

Length

Opcode

Checksum

End code

7E

03

0E

0D

EF

Send this instruction in music Play or pause state can stop the music.
8.2.11 Set Volume
Startcode

Length

Opcode

7E

04

31

Volume Level

Checksum

End code

2C

EF

19

0-30 adjustable volume, real-time modification of the directive can adjust the volume, the volume can be powered
down memory paradigm hair
Send volume level is 25.
8.2.12 Setting EQ
Startcode

Length

Opcode

Parameters

Checksum

End code

7E

04

32

00

36

EF

Send this instruction can change EQ.
8.2.13 Setting cycle mode
Startcode

Length

Opcode

Parameters

Checksum

End code

7E

04

33

02

35

EF

Send this instruction cycle mode can be set, for example to set single cycle mode.
8.2.14 Folder Switching
Startcode

Length

Opcode

Parameters

Checksum

End code

7E

04

34

01

31

EF

Send the command to switch folders Play, sending one to the next folder, and 0 on a folder.
Note: FALSH not have this feature.
8.2.15 Switching equipment
Startcode

Length

Opcode

Parameters

Checksum

End code

7E

04

35

01

30

EF

When the system has multiple devices, you can send the command to select the device to be read,
for example select TF card player.
8.2.16 Select a track Play
Startcode

Length

Opcode

Tracks high

Tracks low

Checksum

End code

7E

05

41

00

01

45

EF

Send this command to specify the corresponding storage track is playing, play the first example of a song.
Note: Tracks for 1-65536
8.2.17 Specify the folder track playback
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BY8301-16P voice module manual V1.2

Startcode

Length

Opcode

Tracks high

Tracks low

Checksum

End code

7E

05

42

00

02

45

EF

Sowing the corresponding tracks corresponding instruction can specify a folder within a folder 8 high number, low 8 to the
song title.Examples for the specified folder 00 in the first two Play.
Note: If you want to use this feature, the folder must be named 00-99, songs must be named 001-255, No Mistakes will
not be played. FALSH not have this feature.
8.2.18 Spots feature
Startcode

Length

Opcode

Tracks high

Tracks low

Checksum

End code

7E

05

43

00

03

45

EF

When receiving the instruction of this article, we pause a track, and then to implement this directive specified Play tracks,
When finished playing, then Play the original Pause tracks.
Note: FALSH not have this feature.
8.2.19 Spots designated folder songs
Startcode

Length

Opcode

Tracks high

Tracks low

Checksum

End code

7E

05

44

01

06

46

EF

When receiving the instruction of this article, we pause a track, and then to implement this directive specified in the
file.Corresponding track is playing, when finished playing, then Play the original Pause tracks. High eight for the folder
number, the lower 8 bitsThe song title.
Note: If you want to use this feature, the folder must be named 00-99, songs must be named 001-255, NoMistakes
will not be played. FALSH not have this feature.
8.2.20 Combination Play
Continuous transmission:
7E 05 41 00 01 45 EF 7E 05 41 00 02 46 EF
7E 05 41 00 03 47 EF
Play 1,2,3,4 song aired stop, up to 10 continuous playback.

7E 05 41 00 40 EF

8.3 Query command Description
After sending the query command returns the corresponding value, not described in detail.

9、Application Circuit
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BY8301-16P voice module manual V1.2

Note that all the main chip IO port voltage is 3.3V, note that the voltage matches other microcontrollers connected!

9.1．21 Road buttons control application circuit K1-K21 corresponding voice segment 1-21
GND
SPK1
1
2
3
4
5
6
7
8

2W/8R
5V

16
15
14
13
12
11
10
9

SPK2
GND
SPK1
IO1
DACR
IO2
DACL
IO3
PLAY _LED IO4
VCC
IO5
TX
IO6
RX
BUSY

IO1
IO2
IO3
IO4
IO5
IO6

1
1
1
1
1
1

2
2
2
2
2
2

IO1
IO1
IO1
IO1
IO1
IO2
IO2
IO2

K1
K2
K3
K4
K5
K6

1
1
1
1
1
1
1
1

2
2
2
2
2
2
2
2

K7
K8
K9
K10
K11
K12
K13
K14

IO2
IO3
IO4
IO5
IO6
IO3
IO4
IO5

IO2
IO3
IO3
IO3
IO4
IO4
IO5

1
1
1
1
1
1
1

2
2
2
2
2
2
2

K15
K16
K17
K18
K19
K20
K21

IO6
IO4
IO5
IO6
IO5
IO6
IO6

BY8 3 01 -1 6 P
GND

21-way switch button is equivalent to the amount of control.

9.2．Microcontroller serial control application circuit
5V

GND

3.3V

GND

SPK1

SPK1
1
2
3
4
5
6
7
8

MCU
2W/8R
5V
R6

1K

SPK2
GND
SPK1
IO1
DACR
IO2
DACL
IO3
PLAY _LED IO4
VCC
IO5
TX
IO6
RX
BUSY

单片机5V供电RX串1K电阻

16
15
14
13
12
11
10
9

MCU
2W/8R
5V
R6

B Y 83 0 1-16 P

1K

1
2
3
4
5
6
7
8

16
15
14
13
12
11
10
9

B Y 83 0 1-16 P

单片机3.3V供电

GND

SPK2
GND
SPK1
IO1
DACR
IO2
DACL
IO3
PLAY _LED IO4
VCC
IO5
TX
IO6
RX
BUSY

GND

The above is a standard UART asynchronous serial connectivity applications, this application is quite flexible, including
play, pause, up and down the song, volume addition and subtraction, Play selections, advertising spots and so on.
Available microcontroller, computer serial port control 485 can also be controlled by TTL to RS485 adapter plate.

9.3．MCU IO port directly connected to the control application circuit
GND

GND

5V

3.3V

SPK1

SPK1

2W/8R
5V

1
2
3
4
5
6
7
8

SPK2
GND
SPK1
IO1
DACR
IO2
DACL
IO3
PLAY_LED IO4
VCC
IO5
TX
IO6
RX
BUSY

BY83 01-16P

16
15
14
13
12
11
10
9

IO1
IO2
IO3
IO4
IO5
IO6

R1
R2
R3
R4
R5
R6

1K
1K
1K
1K
1K
1K

MCU
2W/8R
5V

1
2
3
4
5
6
7
8

SPK2
GND
SPK1
IO1
DACR
IO2
DACL
IO3
PLAY_LED IO4
VCC
IO5
TX
IO6
RX
BUSY

BY8 30 1-1 6P

单片机5V供电IO口串1K电阻

16
15
14
13
12
11
10
9

IO1
IO2
IO3
IO4
IO5
IO6

MCU

单片机3.3V供电
GND

GND

By the microcontroller through a low pulse signal (equivalent to pressing the lift button) can trigger IO1-IO6, achieve
one Play six segments voice, and above 3IO selectable control modes.

9.4．For some customers may use the trigger level to play, you can use the relay control can also be used
optocoupler control, providing connection diagram below:

Relay
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BY8301-16P voice module manual V1.2
12V

1

GND
IO1

2
3

12V

KC1

KC1
1

6

2
3

5
4

IO1

1

IO2

2
3

6
K1
5 1
4

KEY
2
2

1

GND

1

6

2
3

5
4

6
K1
5
4

1

1

KEY
2
2

HK4100F-DC12V

HK4100F-DC12V

Left IO port down play, the figure for the Play in the first paragraph; right is IO combination play, the relay is energized IO1,
IO2 short-circuit Play in paragraph 6.

Optocoupler
12V
U1
IO1

GND

EL357N

K1

4

1 R1

3

2

1K 1

KEY
2
2

1

12V
U2

EL357N

K1

IO5

4

1 R1

IO2

3

2

GND

1K 1

1

KEY
2
2

GND

Left IO port down play, the figure for the Play in the first paragraph; right is IO combination play, the rules of
connections is the low number of connections IO port optocoupler 3 feet, 4 feet high number of connections, the figure
for the first 14 Play segment.

Given above is 12V trigger level can also be converted to a single-chip high-low trigger.
9.5．External amplifier application circuit
GND

C1 10UF

双声道功放

C2 10UF
5V

1
2
3
4
5
6
7
8

SPK2
GND
SPK1
IO1
DACR
IO2
DACL
IO3
PLAY_LED IO4
VCC
IO5
TX
IO6
RX
BUSY

16
15
14
13
12
11
10
9

GND

C1 10UF

单声道功放

C2 10UF
5V

B Y 8 30 1 -1 6 P

1
2
3
4
5
6
7
8

SPK2
GND
SPK1
IO1
DACR
IO2
DACL
IO3
PLAY _LED IO4
VCC
IO5
TX
IO6
RX
BUSY

16
15
14
13
12
11
10
9

B Y 83 0 1-1 6P

The module power is mainly the customer can own an external amplifier.
10、Copy MP3 to store FLASH
Our modules can use the MICRO USB phone lines directly on the computer to update voice, convenient and flexible.
ComputerThe first time you plug in the product, installation requires some time, please be patient, wait for the next time
very quicklyNo need to plug in the power supply direct phone line. The computer will pop up the following screen, and
then the computer 360 software, or kill,Virus software off, or after the following window pops up choose USB plug allows
the program to run:

The computer will pop up the following screen:
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BY8301-16P voice module manual V1.2

10.1．Open the "CD Drive", the computer will enter the following interface. Then open the application, it will pop up
"10.2" in the interface.

10.2．Select "Load Zone 1" folder, as shown above and click "Load File" will pop up a window to load voice,
As shown below:

10.3．At this point you need to load the selected voice, you need to put on a one-time multi-stage election finished,
the entire sequence can be selected into a loading area (area 2-5 are reserved function without load), and then
click "Open" to add the software in the. Voice document proposes naming 0001XXX.mp3,0002XXX.mp3

10.4. Finally, back to the "Downloads" screen, click on the "Download" button, the following screen will appear. From
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Shenzhen Balway Electronic

BY8301-16P voice module manual V1.2

left to right, three windows, a window displays the last "check success", on behalf of the update is complete, close the
window directly to unplug the USB cable on it.

11、Manual version
Version

Date

Description

V1.0

2014-3-20

The initial version

V1.1

2014-6-28

Perfect serial control instructions

V1.2

2014-10-9

Add some application circuit

Shenzhen Electronic Balway Technology Co., Ltd. is a set of voice solutions, voice semi-finished speech
development, production and service in one of technology-based enterprises, the main research has been focused on
speech technology, voice chip solution, MP3 module, voice prompts board, voice finished products such as software
and hardware design, development and customization. And to undertake electronic product development and small
batch production, post-production and mature manner using OEM supplier, the business scope of automotive
electronics, security, home security, communications, home appliances, medical equipment, industrial automation and
control, education, equipment, toys and gifts consumer products and other fields.
Shenzhen Best Electronic Technology specializes in the development, design, production and sales of voice
products. The main circuit board for research and development of products BY series of voice, voice chip solution, MP3
voice module, greeting module, TF card MP3 module, USB MP3 module, 12V playback boards, high-power
multi-channel playback control panels, door voice Reminder, advertising tips, a truck speed limiter, as well as
customers with special needs to develop a voice product development programs, and implement the program, to
complete product development, testing, until the actual application of the guidance products and other services. After
years of development, the company has formed a complete system of technology development process, can quickly
develop customer demand for products, uphold the high degree of enthusiasm and sophisticated technology, has
always been to serve our customers for the purpose, committed to market strategy. For the needs of the market, in the
company's meticulous efforts of all staff, the products will be comprehensive, thorough, to meet customer demand,

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Shenzhen Balway Electronic

BY8301-16P voice module manual V1.2

improve efficiency, and cost-effective. We adhere to the people-oriented service attitude, to reach a two-way
communication with customers, providing high-quality products and excellent service of the people.
Shenzhen Electronic Technology Co., Ltd. is currently the sales and service strategy to enhance customer service
quality, to help develop the most competitive end products, we uphold a positive innovation, courage, customer
satisfaction, teamwork, the market has been gradually from China extended to all regions of the globe. The company's
competitive advantages include the following four points:
(A) professional and innovative research and development capabilities, high-quality research and
development and engineering and technical teams;
(B) the strong long-term relationship market, the price has the absolute advantage;
(C) the full range of technical support and improve the marketing system;
(D) stable product delivery and quality assurance.

Shenzhen Balway Electronic Technology Co., Ltd.
Website：www.balway.com
E-mail： balway@163.com
TEL：
0755-33142633
Rm.303, Huafujin Mansion, No.81 building,Baishilong,
New Yixiu village, Minzhi Street, Bao'an District, Shenzhen,518131

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