The printable version is no longer supported and may have rendering errors. Please update your browser bookmarks and please use the default browser print function instead.
References
Specs
- Supports sampling rates (KHz): 8 / 11.025 / 12/16 / 22.05 / 24/32 / 44.1 / 48
- 24-bit DAC output, support range: 90dB, SNR support: 85dB
- Fully supports FAT16, FAT32 file system, maximum support 32G TF card, support U disk to 32G, 64M bytes NOR FLASH
- A variety of control modes are available. IO control, serial port, AD button control mode
- Radio spots language function, you can pause the background music being played. Advertising finished playing background sound continues to play back
- The audio data is sorted by folder, supports up to 100 folders, folders can be assigned to every 255 Tracks
- 30 level adjustable volume, six adjustable EQ
- DC: 3.3-5v
Device
Pinout
Pin number |
Pin name |
Function |
Remark
|
1 |
VCC |
Module power input |
3. 3V—5V, 5V is recommended, do not exceed 5. 2V
|
2 |
RX |
UART serial data input |
|
3 |
TX |
UART serial data output |
|
4 |
DAC_R |
Audio output right channel |
Drive headphones, amplifier
|
5 |
DAC_L |
Audio output left channel |
Drive headphones, amplifier
|
6 |
SPK2 |
Connect small speaker |
Drive less than 3W speakers
|
7 |
GND |
Ground |
Power ground
|
8 |
SPK1 |
Connect small speaker |
Drive less than 3W speakers
|
9 |
IO1 |
Trigger port |
Default previous song (long press volume down)
|
10 |
GND |
Ground |
Power ground
|
11 |
IO2 |
Trigger port |
Default next song (long press volume plus)
|
12 |
ADKEY1 |
AD port 1 |
The first song when triggered (long press cycle first song)
|
13 |
ADKEY2 |
AD port 2 |
Fifth track when triggered (long press cycle fifth track)
|
14 |
USB+ |
USB+ DP |
Connect U disk or USB port of computer
|
15 |
USB- |
USB- DM |
Connect U disk or USB port of computer
|
16 |
Busy |
Playback status |
With audio, output low. No audio, output high
|