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Flyron FN-BC04 User Manual Download Page 12

www.flyrontech.com

E-mail: [email protected]

Flyron Technology Co., Ltd.

FN-BC04 MP3 Sound Module with 10W Amplifier

12

SD card is plugged in

7E FF 06 3A 00 00 02 xx xx EF

USB cable connected to PC is plugged in

7E FF 06 3A 00 00 04 xx xx EF

SD card is pulled out

7E FF 06 3B 00 00 02 xx xx EF

USB cable connected to PC is pulled out

7E FF 06 3B 00 00 04 xx xx EF

0x3A represents a device is plugged in while 0x3B represents a device is pull out. 0x02, 0x04 represent SD card and USB cable

connected to PC respectively.

4.6. Detailed Annotation of Control Commands

4.6.1. Specify playback of a track (in the root directory of the storage device)

The available selectable tracks are from 1

st

to 3000

th

in the root directory of the storage device. Actually it can support more, but if

we make it support more, the operation speed will become slow. Usually most of applications do not need to support much more

files. Normally if the total track quantity is less than 1,000 in the storage device the response speed of the module is quicker than

50ms. If the total track quantity is more than 1000 the response speed is a little slower than 100ms.

1) For example, if set the first track to be played, send the command 7E FF 06 03 00 00 01 FE F7 EF

7E -- - Start byte

FF -- - Version Information

06 --- Number of bytes

03 --- Actual command (specify playback of a track)

00 --- 0 x01 : need feedback ; 0 x00 : no need feedback

00 --- Most significant byte of the track (MSB of Parameter)

01 --- Least significant byte of the track (LSB of Parameter) FE --- Most significant byte of checksum

(MSB of checksum) F7 - -- Least significant byte of checksum (LSB of checksum ) EF --- End byte

0xEF

2) Regarding track selection, if the 100

th

song (track) is selected to be played, firstly convert 100 to

hexadecimal. It is double-byte by default, i.e. 0 x006 4. MS B=0 x00 ; LS B=0 x64

4.6.2. Specify volume

1) Our system power-on default volume is level 30, if you want to set the volume, then directly send the

corresponding command.

2) For example, if specify the volume to level 15, send the command 7E FF 06 06 00 00 0F FF D5 EF.

3) MSB=0x00; LSB=0x0F, 15 is converted to hexadecimal 0x000F.

4.6.3. Specify single repeat playback (in the root directory of the storage device)

Repeatedly play 1

st

track

7E FF 06 08 00 00 01 xx xx EF

Repeatedly play 2

nd

track

7E FF 06 08 00 00 02 xx xx EF

Summary of Contents for FN-BC04

Page 1: ...es 2 1 3 Technical parameters 2 2 Connections 2 3 Button Control Mode 3 3 1 Trigger Mode Selection 3 3 2 Audio Files Loading 5 4 Serial Control Mode 6 4 1 Naming Rules o Audio Files and Folders 6 4 2 Command Format 6 4 3 About Checksum 7 4 4 Serial Communication Commands 7 4 5 Returned Data from Module 10 4 6 Detailed Annotation of Control Commands 12 4 7 Detailed Annotation of Query Commands 16 4...

Page 2: ...ays back 4 sounds one on one by negative triggering 6 Uses micro SD card and the built in SPI flash memory for storage devices 7 Built in 4MB SPI flash memory by default and supports max 16MB 8 Supports max 32GB micro SD card 9 Possible to load audio files to the flash memory directly via the micro USB connecting with computer like using a USB flash drive 10 Equipped with a mono 10 watts amplifier...

Page 3: ...er modes can be set acquired through a configuration file named read cfg which comes from a text file txt originally Users just need to fill in a digit parameter that is corresponding to a trigger mode in a new built text file Save it and rename it read cfg then put it in the root directory of the micro SD card or the flash memory together with the 4 audio files Please refer to the sheet below abo...

Page 4: ...led Once the button is kept holding when the playback of the audio file is finished it will start to play it repeatedly loop playback Pulse non interruptible one on one playback In this mode a single negative pulse will start playback It s not possible to interrupt the playback by pressing the same button or the other buttons Once an audio file is triggered the audio file will not be able to be in...

Page 5: ...ut K4 In order to guarantee a correct one on one order please refer to the following steps 1 Build a new folder on the computer and put the 4 audio files in this new folder 2 Rename the audio files from 001 mp3 wav to 004 mp3 wav and make sure they are ranked from 001 mp3 wav to 004 mp3 wav in order 3 Plug in your SD card on computer or connect the module with computer through the micro USB make s...

Page 6: ...ccording to physical sequence when you copy the files from computer to SD card or SPI flash For example when the module receives a command to play the track 0001 mp3 it will play the 1st track you copied from computer probably 0001 mp3 or not maybe it would play 0007 mp3 if it was the first one you copied from computer In order to avoid this problem when you make the copy rename the audio files fi...

Page 7: ...nd these 6 bytes are FF 06 09 00 00 02 Start byte end byte and checksum are not counted 4 3 About Checksum Regarding to calculating checksum you can use the following formula to count Checksum 2 bytes 0xFFFF CMD Feedback Para_MSB Para_LSB 1 Normally it s okay whether users choose to use checksum or not our module can receive a serial data with or without checksum but some of users use a MCU withou...

Page 8: ...00 0 A EF Specify playback of the 10th track Increase volume 7E FF 06 04 00 00 00 FE F7 EF 7E FF 06 04 00 00 00 EF Decrease volume 7E FF 06 05 00 00 00 FE F6 EF 7E FF 06 05 00 00 00 EF Specify volume 7E FF 06 06 00 00 1 E FE D7 EF 7E FF 06 06 00 00 1 E EF Specified volume is level 30 Specify single repeat playback in the root directory 7E FF 06 08 00 00 01 FE F2 EF 7E FF 06 08 00 00 01 EF Repeated...

Page 9: ...8 00 00 00 EF Random playback of the whole device Set repeat playback of current track 7E FF 06 19 00 00 00 FE E2 EF 7E FF 06 19 00 00 00 EF Turn on single repeat playback 7E FF 06 19 00 00 01 FE E1 EF 7E FF 06 19 00 00 01 EF Turn off single repeat playback Specify playback of a track with a specific volume level 7E FF 06 22 00 1 E 01 FE B A EF 7E FF 06 22 00 1 E 01 EF Play 1st track with volume l...

Page 10: ...eturned Data from Module 4 5 1 Returned data after the module is powered on 1 After the module is powered on normally it needs about no more than 500ms to 1500m s depending on the actual track quantities in the storage device initialization time Once the initialization is done the module returns a data to MCU If it does not return a data after more than the initialization time it means there is an...

Page 11: ...fully received the command that MCU sent out 0x41 is the returned command by module 2 Users are free to choose this feedback or not It s also fine not to choose this function 4 5 4 Returned data of errors Returned Data of Errors Meaning Description 7E FF 06 40 00 00 01 xx xx EF Module busy this info is returned when the initialization is not done 7E FF 06 40 00 00 02 xx xx EF Currently sleep mode ...

Page 12: ...the total track quantity is more than 1000 the response speed is a little slower than 100ms 1 For example if set the first track to be played send the command 7E FF 06 03 00 00 01 FE F7 EF 7E Start byte FF Version Information 06 Number of bytes 03 Actual command specify playback of a track 00 0 x01 need feedback 0 x00 no need feedback 00 Most significant byte of the track MSB of Parameter 01 Least...

Page 13: ...ifying device to the module finishes initialization of file system Please wait for 200ms and then send the specified command to play a track 4 6 5 Set sleep mode awake from sleep and reset Set sleep mode 7E FF 06 0A 00 00 00 FE F1 EF Awake from sleep 7E FF 06 0B 00 0 0 00 FE F0 EF Reset 7E FF 06 0C 00 00 00 FE EF EF 1 After set the module enter into sleep mode there is also other two ways other th...

Page 14: ...0001 in the folder ADVERT 7E FF 06 13 00 00 01 FE E7 EF Inter cut track 0002 in the folder ADVERT 7E FF 06 13 00 00 02 FE E6 EF Inter cut track 0255 in the folder ADVERT 7E FF 06 13 00 00 FF FD E9 EF Inter cut track 1999 in the folder ADVERT 7E FF 06 13 00 07 CF FE 12 EF Inter cut track 3000 in the folder ADVERT 7E FF 06 13 00 0B B8 FE 25 EF 1 This module supports inter cut advertisements during p...

Page 15: ...stop until it receives a command to stop 4 6 10 Set random playback Random playback of the whole s to rage de vice 7E FF 06 18 00 00 00 FE E3 EF This command is used to randomly play all of the tracks in the storage device according to physical sequence and no matter if there is a folder or not in the device 4 6 11 Set repeat playback of current track Turn on single repeat playback 7E FF 06 19 00 ...

Page 16: ...ine means module is connecting with PC via a USB cable 4 7 2 Query current status Query current online storage device 7E FF 06 42 00 00 00 FE B9 EF 1 There are 4 status playing paused playing stopped playing and in sleep that can be queried during the module is decoding Users can query the current status via sending the command as above 0 x42 2 Interpretation of returned data Returned Data Status ...

Page 17: ...out Delay of Serial Programming 1 After the module is powered on it needs about 500ms to 1500ms depending on the track quantities in the storage device to initialize After that some data related to initialization returns to MCU Users can choose to ignore these data 2 After specifying playback of a device SD card or SPI flash it needs 200ms delay before sending the command to execute the relative o...

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