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The module is MP3 mode, key mode (3 groups of controlling volume adjustment and voice 5 groups) 2-wire serial mode and loop playback mode (In this mode, memory function and activated after power up).
MP3 Modes: Play/Pause, Next, Previously, Roll-+, Volume Function. Key Mode (3 groups of voices): One key trigger for all keys, the default trigger mode, edge is re-triggered with one voice group, and volume, and wind +. Key modes (5 groups of voices): One group of key trigger voices:
1. All keys have edge retrigger
2. All keys are ON/OFF (Voice not complete when cycles)
3. All keys turn on/off (end in voice cycle and loop playback mode: if power is off while playing voice, after power on, the voice (does not need to trigger I/O automatically with memory function). 2. When power is reloaded, it starts with voice 2 or voice 3,
4. It can be customized for specific features. 2-Wire Serial Mode: WTV020-SD is controlled by transmitting data via CLK and DI, which can play audio to any address. Mute and other voice can be combined to play in this mode.
If you want to change the audio by SD card reader or PC, the SD card must be FAT format. Sampling rate supports AD4 audio format, 6 kHz for WAV audio format, 6 kHz and 32 kHz for 32 kHz for 16 kHz
Specifications
Supports 1GB SD card max. or SPI flash 64MB max;
Sampling rate from 6kHz to 36kHz for AD4 audio format.
Sampling rate from 6kHz to 16kHz for WAV audio format.
16-bit DAC / PWM audio output
Key mode, MP3 mode and 2-wire serial mode are optional.
Support copy files to SD card via PC
Operating Voltage: DC 2.7-3.5V
Static current: 3uA
General
Branded tianrui
Model LDTR - WG0018
Quantity: 1 piece
Foam Color: Blue
Material: FR-4
Dimensions (2 x 1.8 x 1.3 cm)
Weight (5 grams)
Package Contents:
1 x Module