-This module uses SPI FLASH, is measured in bits, hard disk is measured in bytes, 8bit = 1byte, 16Mbit = 2Mbyte is equivalent to the computer display 2M, please buy customers to distinguish between good capacity
-Function:
1. Support sample rate (KHz): 8/11.025/12/16/22.05/24/32/44.1/48
2. 24-bit DAC output, dynamic range support 90dB, signal-to-noise ratio support 85dB
3. Fully support FAT16, FAT32 file system, large support for 32G TF card, support for 32G U disk, 64M bytes of NORFLASH
4. Multiple control modes, parallel port control mode, serial port mode, AD key control mode
5. Broadcast language interrupt function, can pause the background music being played
6. Audio data sorted by folder, supports up to 100 folders, every other folder can be assigned 1000 songs
7. 30 levels of volume adjustable, 10 levels of EQ adjustable
8. Spi flash can be plugged in, connected to the computer can display the disk of spi flash to update the content
9. You can control the playback of specified music through the serial port of the microcontroller
10. In key mode, you can choose the playback mode: interruptible, non-interruptible, single song cycle, big cycle (interruptible: that is, in the process of playback, press the key will interrupt the current state to perform new; non-interruptible: that is, in the process of playback, press any key is invalid until the end of playback of the current track to be effective)
-Application:
1. Vehicle navigation voice announcement
2. Highway transportation inspection, toll station voice prompts
3. Train station, bus station security check voice prompts
4. Power, communication, financial business hall voice prompts
5. Voice prompts for vehicle entry and exit channel verification
6. Border control channel voice prompts
7. Multi-channel voice alarm or equipment operation guidance voice
8. Electric sightseeing car safe driving voice notification
9. Automatic alarm for electromechanical equipment failure
10. Firefighting voice alarm prompts
11. Automatic broadcasting equipment, timed broadcasting
-Basic parameter description:
1. UART interface: standard serial port, TTL level, baud rate can be set
2. Input voltage: power supply in 3.2V-5V, good for 4.2V
3. Rated current: 20ma
4. Operating temperature: -40 degrees -70 degrees
5. MP3 file format: support for all bit rate 11172-3 and ISO13813-3 layer3 audio decoding, sample rate support (KHZ): 8/11.025/12/16/22.05/24/32/44.1/48, support for Normal, Jazz, Classic, Pop, Rock, and other sound effects