MP3 플레이어 모듈 -UTMA2, U-디스크
(MP3 Player Module -UTMA2, U-Disk)
개요
- 본 제품은 MP3 플레이어 모듈 -UTMA2, U-디스크입니다.
- 올인원 gzut-ma2 칩을 탑재한 제품이며, USB를 연결하면 U disk로 모듈이 나타나 MP3 파일을 다이렉트로 카피할 수 있습니다.
- 모듈 양 옆으로 스피커와 앰프를 연결할수 있는 핀패드가 나와 있으며, UART 인터페이스의 접근도 가능합니다.
특징
- Pin Description:
SPKN: speaker output-(has been amplified)
SPKP: speaker output + (has been amplified by power failure)
DACR: Right channel (original without power amplifier)
DACL: Left channel (original without power amplifier)
3.3V: 3.3V LDO output inside the chip (not high current)
5V: 5V power supply input
GND: Ground
TXD: Module serial port output TX D+
RXD: module serial port input RX D- external U disk interface
BUSY: busy state output power amplifier control port
PO2: Sleep wake-up port
1. Provide user quick debugging serial port instruction software, the serial port module has been welded
2. Insert the computer to display the U disk directly, and directly COPY the MP3 voice file
3. Support 4M, 8M, 16M, 32M. 64M, 128M external SPI FLASH
4. Two audio output modes: power amplifier and DAC
5. Support standard serial port trigger and control communication rate 9600bps
6. Support 8~48kHz WAV or 128~328kbps MP3 files
7. Support any combination of multiple voice content to play, support BUSY status output
8. Support volume adjustment, designated file name, combined playback - Features:
1. Support MP3, WAV hardware decoding
2. Support FAT file system
3. Support sampling (KHz): 8/11.025/12/16/22.05/24/32/44. 1/48kHz
4. The 24-bit DAC output internally uses DSP hardware decoding, non-PWM output, dynamic range support 90dB, signal ratio 85dB
5. Support U disk, SPIFLASH
6. Support SPIFLASH simulation into U disk, update the voice in SPIFLASH directly like operating U disk, support previous song, next song, play, pause, stop, song selection, and other common functions control
7. Support all kinds of information query, easily get the current status of the voice chip
8. Support the designated track to be inserted, that is, the currently playing music can be paused, and the inserted track can be played
9. Support Chinese and English path insertion, in addition to specified track insertion, it also supports specified path insertion, and the path of the insertion can be realized
10. Support inter-disk insertion, such as the content of the insertion is stored in SPIFLASH
11. Support designated Chinese and English path to play, no need to know the serial number of the content to be played, just send the path where it is
12. Support smart combination play, the song combination in a specific folder can be combined by sending the song name. Support 30 levels of volume adjustment
13. Support multiple play mode control, can adapt to different applications
14. Support system deep sleep, the current after sleep is less than 200 microamperes, and the dedicated BUSY signal output instruction can be waked up by command 10
15. Support various status change information return
16. Mature instructions and instruction analysis make the application more stable
17. Dedicated supporting host computer, quick to get started, easy to debug, and instructions are automatically generated
