WTV020-SD-Module
$2.001 pcs
Large-capacity storage, multi-format compatibility, multiple control modes, diverse triggering options, wide voltage compatibility
| Brand |
easyelecmodule |
|---|
4141 in stock
Product Introduction
The WTV020-SD Module is a large-capacity rewritable voice module that supports external SD cards up to 1GB. It can load audio files in WAV and AD4 formats.
Centered around the WTV020SD-20S voice chip, the module offers five operating modes: MP3 control mode, one-button-one-voice control mode (for 3 or 5 audio segments), power-on loop playback mode, and two-wire serial port control mode. These modes are set during chip manufacturing and cannot be switched during operation. Custom modes are available upon request.
Product Features
| Comparison Dimension | WTV020-SD Voice Module | Fixed-Segment Voice Module |
|---|---|---|
| Audio Storage Method | SD card (audio replaceable freely) | Built-in ROM (fixed, non-modifiable) |
| Number of Audio Segments | Up to 255 segments | Only 1 – 2 segments |
| Trigger Methods | Multi-mode (button/serial port/IO port) | Single button trigger only |
| Power Compatibility | Wide range (5V/3.3V) | Single voltage only |
Interface Definition
| Package Pin | Pin Label | Brief Description | Function |
|---|---|---|---|
| 1 | /RESET | Reset | Reset pin |
| 2 | AUDIO-L | AUDIO-L | Floating (no connection) |
| 3 | NC | NC | No connection |
| 4 | SP+ | PWM+ | PWM+ audio output pin / DAC positive audio output |
| 5 | SP- | PWM- | PWM- audio output pin |
| 6 | NC | NC | No connection |
| 7 | P04 | K3/A2/CLK | Button / Two-wire serial port clock pin |
| 8 | GND | GND | Ground pin |
| 9 | P07 | K5/A4/SBT | Button trigger pin |
| 10 | P05 | K4/A3/DI | Button / Two-wire serial port data input pin |
| 11 | NC | NC | No connection |
| 12 | P03 | K2/A1 | Button |
| 13 | P02 | K1/A0 | Button |
| 14 | NC | NC | No connection |
| 15 | P06 | BUSY | Audio playback busy signal output pin |
| 16 | VDD | VDD | Power input pin |
WTV020-SD Voice Module datasheet
We provide you with the WTV020-SD Voice Module datasheet for your reference：
What are the control modes?
The WTV020-SD Voice Module has 5 operating modes:
- MP3 control mode:Offers basic functions like play/stop, next track, previous track, volume up, and volume down.
- One-button-one-voice control mode (3 audio segments):Each button triggers a specific audio segment. It can play 3 segments and adjust volume (up/down), and all buttons use non-repeatable pulse triggers by default.
- One-button-one-voice control mode (5 audio segments): Has 3 control options:
1.All buttons use repeatable pulse triggers.
2.All buttons act as play/stop triggers (single track, no loop).
3.All buttons act as play/stop triggers (single track, loopable).
- Power-on loop playback mode:Automatically plays all audio files on the SD card right after powering on (no I/O trigger needed). It has power-off memory—when re-powered, it resumes playback from where it stopped last time. There are 2 control options:
1.P04 supports pulse-based play/pause.
2.P05 supports level-based play/pause.
- Two-wire serial port mode:Controlled by a microcontroller viaCLK (clock) and DI (data) lines. You can play audio from any track, and combine multiple segments for playback.
To update audio content, just replace files on the SD card using a card reader on your PC. The module works with the FAT file system, and automatically recognizes the sample rate and format of audio files (supports AD4 audio at 6KHz~32KHz/36KHz, and WAV audio at 6KHz~16KHz).
Shipping Cost
We only ship to the United States. Shipping costs are calculated based on the total order amount.
Shipping Method And Delivery Time
All orders will be processed and shipped within 72 hours of placing the order (excluding weekends and holidays). They will ship from Shenzhen, China, primarily via 4PX logistics. Depending on the destination and logistics conditions, other carriers such as DHL, FedEx, UPS, USPS, etc., may also handle the delivery. Estimated shipping time is 7-12 business days, with actual delivery occurring in 10-17 business days, depending on logistics conditions.
Payment:
We accept Visa, Master card, Maestro, American Express, JCB, Dinner's Club, Discover, Paypal, Apple Pay, Google Pay .
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