Description
WT2605 Small Voice Recording Module Voice Recorder and Playback Module Ble BLE5.0 Sound Playback Module
Product Description
The WT2605 audio recording Blet module is a smart wireless audio data transmission, recording, and MP3 audio playback product. It is a low-cost and efficient stereo wireless transmission solution with high integration, small size, low power consumption, and fast transmission speed , Only need to add a few components on the periphery of the module to achieve wireless reception of high-quality stereo audio. It adopts driver-free mode itself, and customers only need to connect the chip to the application product to quickly realize wireless transmission of music and enjoy the fun of Ble chip.
WT2605 mainly has three major functional features, comes with MP3 function (TF card, U disk can be plugged in), mobile phone Ble communication, UART serial port control. V2.02 has built-in Flash, which can be connected with TF card and U disk at the same time. The chip is mainly used for short-distance music transmission, and can be easily connected to Ble devices of digital products such as notebook computers, mobile phones, PDAs, etc., to realize wireless transmission and recording of music.
Features
· Standard UART communication interface, which can flexibly realize designated address playback, designated file name playback, designated folder file playback, volume level, up and down song, playback stop, memory switching and selection of playback mode, etc .; using WT2605 as the core, while supporting Three storage methods: SPI-FLASH, TF card, U disk; the storage area A / B area can be customized, A (fixed voice area) can not be replaced, B (custom voice) can be replaced; · USB interface realizes automatic switching between host (USBHID) and slave (USB card reader) and USB sound card function; · Support FAT16, FAT32 file system, support MP3, WAV (PCM, IMA-ADPCM); · Support offline upgrade program; · Open space can reach 30-50M; · In MP3 mode, when there is U disk and TF card, first respond to U disk, then respond to TF card; · Comply with Ble 5.0 and BLE specifications; · Typical TX output power + 2db; · Audio codec supports 16-bit stereo DAC and two channels of 16-bit ADC; · High performance stereo ADC with 90dB signal to noise ratio; · Three multi-function 32-bit timers, support capture and PWM mode; · USB2.0 host / slave device controller, can be connected to U disk, can also be connected to the computer as a simulated U disk.
The internal structure of the module consists of:
Audio Ble chip, SPI-flash, a 1W power amplifier. (When not in use, it can be directly connected to an external output through a resistor).
|
Pin
|
Name
|
Type
|
Description
|
|
1
|
NC
|
empty foot
|
|
|
2
|
TFCMD / SPIC
|
I/O
|
TF internal chip select or SPI-FLASH internal memory chip select
|
|
3
|
ROUT
|
O
|
Speaker terminal 1W 8R
|
|
4
|
LOUT
|
O
|
Speaker terminal 1W 8R
|
|
5
|
DACRO
|
O
|
DAC right channel output
|
|
6
|
DACL
|
O
|
DAC left channel output
|
|
7
|
NC
|
empty foot
|
|
|
8
|
NC
|
empty foot
|
|
|
9
|
MIC
|
I
|
Microphone terminal
|
|
10
|
GND
|
POW
|
Power ground
|
|
11
|
MP3_EN
|
O
|
Mp3 enable pin
|
|
12
|
TXD
|
I/O
|
UART asynchronous serial data output
|
|
13
|
RXD
|
I/O
|
UART asynchronous serial data input terminal
|
|
14
|
TFCLK
|
I/O
|
Internal TF card clock pin or FLASH clock pin
|
|
15
|
PWRKEY
|
I
|
On / off key
|
|
16
|
VDDIO
|
POW
|
Internal 3.3V digital power supply
|
|
17
|
TFDAT / SPIDA
|
I
|
Internal TF card data pin or FLASH data pin
|
|
18
|
VBAT4.2V
|
POW
|
Module power terminal
|
|
19
|
DM
|
I/O
|
USB data terminal DM
|
|
20
|
DP
|
I/O
|
USB data port DP
|
Details Images
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