QJ008M02 perfectly integrates hard decoding of MP3 and WMV, which supports FLASH driver, FAT16, and FAT32 file system. You can play the songs or download from the computer into Flash which is similar to the USB disk copy way, easy and convenient. This module small in size, with a loud sound, and simple control mode, is the priority choice for majorities of electronic engineers to quickly start debugging voice programs.
Features
1. Support the sampling rate (KHz): 8/11.025/12/16/22 05/24/32/44.1/48.
2. Support to play WAV /MP3 format files.
3. 24-bit DAC output, dynamic range support 90dB, SNR support 85 dB.
4. Fully support FAT16, FAT32 file system, maximum support 128M bit FLASH, 32G USB disk.
5. Support single-chip asynchronous serial UART control: pause, previous and next song, add and subtract volume, loop playback, volume adjustment, etc..
6. Support 17 folder content combination playback.
7. Support the specified folder file name to play, while supporting the query of the current song's serial number, and interlude between multiple folders.
8. Through the micro USB cable connected to the computer to display the drive letter which is similar to copy music files via USB flash disk.
9. Built-in 1W power amplifier, equipped with 8 ohm 1W speaker at 5V power supply and equipped with 8 ohms 0.5W speaker at 3.3V powering which is in loud sound.
10. DIP16 square row of needles, compact appearance.
Parameter
| Item | Parameter | ||||
| File Format | Supports playing WAV files, 8 to 320kbps bitrate audio files | ||||
| Support to play MP3 files, 8~48K sample rate audio files | |||||
| UART | Standard serial port 3.3V level, baud rate 9600 | ||||
| USB Interface | 2.0 Standard | ||||
| Input Voltage | Power supply is 3.3V-5V, optimal powering is 4.2V | ||||
| Output Power | The 3.3V power supply is connected to the 8 ohm 0.5W horn, and the 5V power supply is connected to the 8 ohm 1W horn. | ||||
| Size | 2x2 CM | ||||
| Standby Current | 30 mA | ||||
| Operating Temperature | -10℃~70℃ | ||||
| Operating Humidity |
5%~85% |
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Details
PIN Introduction
| Pin NO. | Pin Name | Type | Functional Description | ||
| 1 | VDD33 | IO | LD0 output 3.3V. This voltage is the internal voltage of the chip and cannot be supplied to MCU and other devices. | ||
| 2 | NC | / | / | ||
| 3 | NC | / | / | ||
| 4 | NC | / | / | ||
| 5 | NC | / | / | ||
| 6 | BUSY | IO | BUSY indicates low voltage when playing, but high voltage usually. | ||
| 7 | MTXD | IO | Connect to MCU TXD | ||
| 8 | MRXD | IO | Connect to MCU RXD | ||
| 9 | GND | AGND | GND | ||
| 10 | ROUT | AO | Connect to speaker SPK+ | ||
| 11 | LOUT | AO | Connect to speaker SPK- | ||
| 12 | DACR | AO | The right channel output of the module sound source is an external power amplifier | ||
| 13 | DACL | AO | The left channel output of the module sound source is an external power amplifier | ||
| 14 | DM | IO | USB data cable DM | ||
| 15 | DP | IO | USB data cable DP | ||
| 16 | +5V | Power |
5V |
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Send Commands and Functions
| Function | Sent Instruction | Remarks | |||||
| Playback | 7E 02 01 EF | ||||||
| Pause | 7E 02 02 EF | ||||||
| Previous Audio | 7E 02 03 EF | ||||||
| Next Audio | 7E 02 04 EF | ||||||
| Volume Up | 7E 02 05 EF | ||||||
| Volume Down | 7E 02 06 EF | ||||||
| Pause Playback | 7E 02 0C EF | ||||||
| Stop | 7E 02 0E EF | ||||||
| Return parameters after playing the current audio | 7E 04 3E XX XX EF | XXXX is the address of the voice file being played | |||||
| Stop Inter-cut | 7E 02 0F EF | Valid for all interstitial commands | |||||
| Specify multi-folder track inter-cut | 7E 04 43 01 02 EF | Insert the second song named "01" folder | |||||
| Assigned track index playback (Play according to the order of copied files) | 7E 04 41 00 01 EF |
Tags:
MP3 Serial Sound Module
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