Support SD card card voice recording chip module function
1, support, WAV, WMA, MP3 audio format, high quality sound beautiful.
2, use the SPI - FLASH, TF card and U disk as a memory, the largest support 32 gb TF card and 32 gb usb FLASH drive.
3, support the same storage combination play
4, support different memory slots.
5, PC through USB interface free replacement of TF in the audio content.
6, through the TF card or U disk copy audio files to the SPI - FLASH, realize offline change of audio content.
7, support USB sound card function.
8, using UART asynchronous serial port communication, common standard interface protocols, more flexible and convenient control.
9, 1 w power amplifier, built-in direct drive 8 ohm / 1 w speakers, loud noise, 32 adjustable volume level.
10, DC 5 v power supply.Supports audio formatsSupport 8 ~ 48 KHZ sampling rate, bit rate of 8 ~ 320 KBPS MP3 audio files.Support the sampling rate of 8 ~ 44.1 KHz WAV audio file.(U disk highest support 22 KHZ sampling rate)Support the sampling rate of 8 ~ 44.1 KHz WMA audio files.(FLASH does not support the audio formats)
Supports memory capacity: 4 mbit ~ 128 mbit SPI - FLASHThe biggest support: 32 gb TF cardThe biggest support: 32 gb usb flash driveUSB interface: 2.0 at full speedThe power supply voltage: DC3.3 ~ 5 vRated current: 20 ~ 250 ma (and load)IO port level: 3.3 V TTL levelSize: 21.3 mm * 37.2 mmWorking temperature: - 40 ~ 85 degreesHumidity: 5% ~ 95%