DY-HV20T 12V/24V Power Supply10W/20W Voice Playback Module Supporting Micro SD Card MP3 Music Player For Arduino

12V/24V power supply10W/20W Voice playback module supporting Micro SD card MP3 music player for Arduino 1．Product overview DY-HV20T is a smart voice playback module developed independently by our company,Integrated IO trigger, UART protocol control, One_line single-bus protocol control, standard MP3 and other 7 operating modes setting by D switch; Drive 4~8Ω, 10W~20W speaker by a 20W cla D audio amplifier on board;Support MP3.WAV decoding; Support Micro SD card maximu2G bytes, downloading music files directly by micro USB connector. 2．Product characteristics 1.Support MP3.WAV decoding. 2.Support sampling rate (K Hz ):8/11.025/12/16/22.05/24/32/44.1/48. 3.24bit DAC output,support dynamic range 90dB,SNR 85dB. 4.Wide supply voltage DC:6~35V. 5.Support Micro SD card maximu2G bytes. 6.Output maximum 20W driving 4Ω speaker, output maximum 10W driving 8Ω speaker. 7.Play 65535 pieces of music by UART control protocol; Play, Pause, Selecting music, VOL+/- and so on can be controlled,the communication baud rate is 9600bps. 8.Play 255 pieces of music by IO triggering. 9.Play music by One_line control protocol,Play, Pause, Selecting music, VOL+/- and so on can be controlled. 10.Switch 7 work modes using D switch easily. 11.ESD protection designed for 8 IOs. 3．Definition of interfaces and functions Definition of pins PINS Descrtion Power(6~35VDC) 6~35VDC power supply TXD/IO0 IO0 in IO triggering mode;TX in UART control mode, connect to RX of MCU RXD/IO1 IO1 in IO triggering mode; RX in UART control mode, connect to TX of MCU IO2 IO2 in IO triggering mode IO3 IO3 in IO triggering mode One_line/IO4 IO4 in IO triggering mode;RX in One_line mode IO5 IO5 in IO triggering mode IO6 IO6 in IO triggering mode IO7 IO7 in IO triggering mode BUSY Output low level while playing music (0V),output high level when end playing(3.3V) GND Reference GND Speaker 4Ω/20W or 8Ω/10W speaker is recommended IO electric characteristic IO input characteristics Symbol Parameters MIN MAX UNIT V IL LOW LEVEL INPUT 0 0.8 V V IH HIGH LEVEL INPUT 2.7 3.3 V IO output characteristics Vo L LOW LEVEL OUTPUT 0 0.33 V Vo H HIGH LEVEL OUTPUT 2.7 3.3 V Configuration of D Switch Control modes D switch setting Control modes D switch setting I/O Combination mode 0 UART control mode I/O Combination mode 1 One _line mode I/O stand-alone mode 0 Standard MP3 mode I/O stand-alone mode 1 Control modes Configure PINS I/O Function CON3 CON2 CON1 IO7 IO6 IO5 IO4 IO3 IO2 IO1 IO0 I/O Combination mode 0 0 0 0 I/O Combination trigger at falling edge and restoring to high level ,play 2^8-1(255)pieces music. I/O Combination mode 1 0 0 1 I/O Combination trigger while IOs keeping low level, play 2^8-1(255) pieces music . I/O stand-alone mode 0 0 1 0 8th music 7th music 6th music 5th music 4th music 3rd music 2nd music 1st music I/O stand-alone mode 1 0 1 1 8th music 7th music 6th music 5th music 4th music 3rd music 2nd music 1st music UART control mode 1 0 0 RXD TXD One_Line mode RXD Standard MP3 mode 1 0 1 RPT EQ P/P/M ODE PREV/ V- NEXT/ V+ "0"=low level; "1"=high level NOTES:"I/O Combination mode 0"IO0~IO7 restore to high level after outputting corresponding level, It's like triggering a on once. "I/O Combination mode 1" IO0~IO7 always keep the corresponding level after Outputting corresponding level. The difference between "I/O Combination mode 0"and "I/O Combination mode 1"is that it still plays music when IOs restore to high level in "I/O Combination mode 0", and it stops playing music when IOs restore to high level in "I/O Combination mode 1" The difference between "I/O stand-alone mode 0" and "I/O stand-alone mode 1"is the same as above 4．Module size 5. Modes operation instructions 5.1 I/O Combination mode 0 MCU I/O output corresponding level to trigger specified music and release the IO level to high, it stops playing music after completing playing current music; It will play the new music, if retrigger the music while playing. If keep the triggering state, it will keep playing circularly. The busy pin is always effective while playing. 5.2 I/O Combination mode 1 MCU I/O output corresponding level to trigger specified music and keep the triggering state, it will keep playing circularly. It will stop playing immediately when release to high level anytime. The busy pin is always effective while playing. Combination mode music Control as follows NOTE:The music files must be named by five numbers such as 00001.mp3~00255.mp3 IO7 IO6 IO5 IO4 IO3 IO2 IO1 IO0 Music playing 1 1 1 1 1 1 1 0 00001.mp3 1 1 1 1 1 1 0 1 00002.mp3 1 1 1 1 1 1 0 0 00003.mp3 1 1 1 1 1 0 1 1 00004.mp3 1 1 1 1 1 0 1 0 00005.mp3 1 1 1 1 1 0 0 1 00006.mp3 1 1 1 1 1 0 0 0 00007.mp3 ...... ...... ...... ...... ...... ...... ...... ...... ...... 0 0 0 0 0 0 0 0 00255.mp3 5.3 I/O stand-alone mode 0 IO0~IO7 control 8 pieces of music,one IO only control one piece of music; IO trigger specified music by falling edge level and restore to high level, it stops playing after completing playing the triggered music. It will play new music, if retrigger the music while playing;If keep the triggering state, it will keep playing circularly. The busy pin is always effective while playing. 5.4 I/O stand-alone mode 1 IO0~IO7 control 8 pieces of music,one IO only control one piece of music; IO trigger specified music by low level, and it will keep playing circularly if keep the triggering state. It will stop playing immediately when release to high level anytime. The busy pin is always effective while playing. stand-alone mode music Control as follows NOTE:The music files must be named by five numbers such as 00001.mp3~00008.mp3 IO7 IO6 IO5 IO4 IO3 IO2 IO1 IO0 Music playing 1 1 1 1 1 1 1 0 00001.mp3 1 1 1 1 1 1 0 1 00002.mp3 1 1 1 1 1 0 1 1 00003.mp3 1 1 1 1 0 1 1 1 00004.mp3 1 1 1 0 1 1 1 1 00005.mp3 1 1 0 1 1 1 1 1 00006.mp3 1 0 1 1 1 1 1 1 00007.mp3 0 1 1 1 1 1 1 1 00008.mp3 5.5 UART Control Mode 5.5.1 Communication format Full duplex serial communication; Baud: 9600bps,Data:8 bits ,stop:1bit,Check: N. Start-CMD Type-data length(n)-data1－data n－CRC(SM) ※ Start :fixed AA. ※ CMD Type : Used to distinguish CMD types. ※ data length:The number of bytes of data in CMD ※ data :Data in CMD,there is no data when the length of data is one, only CMD. ※ CRC(SM):The sum of all data from the start code to the end data before the CRC, and select the low 8 bits. ※ DATA FORMAT:Send the high 8 bits first, and the low 8 bits follow. 5.5.2 Communication Protocol The definition of data as follows. 1. Definition of playing state :It is in stop state when power on. ※ 00(Stop) 01(Play) 02(Pause) 2. The definition of devices: It is in stop state when switch device. ※ USB:00 SD:01 F:02 NO_DEVICE:FF 3. Volume:The volume all is 31 steps which is 0-30,it is 30 steps when power on. 4. The definition of playing modes:It is in single stop mode when power on. ※ Full cycle(00):Play all music in sequence. ※ Single cycle(01):Play the current music always. ※ Single stop(02):Stop playing after playing the current music once. ※ Random broadcast(03):Play music randomly in device. ※ Repeat folder(04):Play all music in current folder in sequence. ※ Random broadcast in folder(05): Play music randomly in current folder. ※ Order play in folder (06):Play music in current folder in sequence, and stop when complete playing the last music. ※ Order play (07):Play music in device in sequence, and stop when complete playing the last music. 5. Definition of EQ:It is NORMAL (00) when power on. ※ NORMAL(00) POP(01) ROCK(02) JAZZ(03) CLIC(04) 6. Definition of combination play:It is combined by file name, the file is stored in ZH folder,the file is named as two bytes , the number name is recommended such as 01.mp3, 02.mp3, and it is also named by two letters. 5.5.3 Definition of CMD Control CMD CMD CODE RESPONSE Play AA 02 00 AC No return Pause AA 03 00 AD No return Stop AA 04 00 AE No return Previous music AA 05 00 AF No return Next music AA 06 00 B0 No return Volume+ AA 14 00 BE No return Volume- AA 15 00 BF No return Previous folder directory AA 0E 00 B8 No return Next folder directory AA 0F 00 B9 No return End playing AA 10 00 BA No return Setting CMD CMD CODE RESPONSE Volume setting AA 13 01 VOL SM No return Cycle mode setting AA 18 01 Mode SM No return Cycle times setting AA 19 02 High Byte Low Byte SM Times No return EQ setting AA 1A 01 EQ SM No return Select specified music AA 07 02 High Byte Low Byte SM Music NO. No return Select device and path AA 08 Length Device Path SM No return Switch to selected device AA 0B 01Device SM No return Select specified file to interlude AA 16 03 Device High Byte Low Byte SM Music NO. No return Select specified path to interlude AA 17 Length Device Path SM No return Select file but do not play AA 1F 02 High Byte Low Byte SM Music NO. No return Check CMD CMD CODE RESPONSE Check Play State AA 01 00 AB AA 01 01 State SM Check Device Online AA 09 00 B3 AA 09 01Device SM Check Current Playing Device AA 0A 00 B4 AA 0A 01 Device SM Check Number Of all Music AA 0C 00 B6 AA 0C 02 High Byte Low Byte SM Music NO. Check Current Music AA 0D 00 B7 AA 0D 02 High Byte Low Byte SM Music NO. Check the first Music in Folder AA 11 00 BB AA 11 02 High Byte Low Byte SM Music NO. Check Number of Music In Folder AA 12 00 BC AA 12 02 High Byte Low Byte SM Music NO. UART Tuning Tool The detailed development data of UART mode, please check the "UART mode user's guide" 5.6 One_line Mode One_line control to play Send the CMD as follow, send the low bit first. Send 89H as follow. The start flag is min 3ms. CMD format CMD(HEX) Function Instruction 00 NO.0 Send the number first and function CMD is followed, such as setting volume to 21 steps, send "0x02" "0x01" "0x0C " 01 NO.1 02 NO.2 03 NO.3 04 NO.4 05 NO.5 06 NO.6 07 NO.7 08 NO.8 09 NO.9 0A Clear digital Clear digital sent 0B Select and enter Setting function with digital 0C Volume Setting 0D EQ Setting 0E Set cycle mode 0F Set channel 10 Select music to inter-cut 11 Play 12 Pause 13 Stop 14 Previous music 15 Next music 16 Previous directory 17 Next directory 18 SD card selected 19 U Disk selected 1A F selected 1B System sleep 1C End playing NOTE: "Select music" and "Inter-cut" are based the name of music; For example, the music name is "123.mp3",send the data"0x01""0x02""0x03""0x0B" in sequence to complete selecting music. The detailed development data of One_Line mode, please check the "One_Line mode user's guide"

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