The WT2003H B Series MP3 modules offer SMD (Surface Mount Device) packaging, ideal for automated assembly and compact product designs. These MP3 modules are based on the powerful WT2003H chip with 120MHz 32-bit processor.
| Model | Storage Type | Max Capacity | Package | Dimensions | Interface | DAC Output | Datasheet |
|---|---|---|---|---|---|---|---|
WT2003HB01 |
SPI Flash + U Disk | 128Mbit Flash / 32GB U Disk | SMD | 21.21×18.24×3.35mm | UART, USB | ✓ | Download WT2003HB01.pdf |
WT2003HB02 |
TF Card + U Disk | 32GB TF / 32GB U Disk | SMD | 21.21×18.24×3.35mm | UART, USB | ✓ | Download WT2003HB02.pdf |
WT2003HB03 |
SPI Flash + TF Card + U Disk | 128Mbit / 32GB / 32GB | SMD | 21.21×18.24×3.35mm | UART, USB | ✓ | Download WT2003HB03.pdf |
The WT2003H M Series MP3 modules feature in-line (DIP) packaging with 2.0mm pin spacing, ideal for breadboard prototyping, hand assembly, and applications where through-hole mounting is preferred. These MP3 modules provide the same powerful features as the B Series in a traditional DIP format.
| Model | Storage Type | Max Capacity | Package | Pin Spacing | Interface | DAC Output | Datasheet |
|---|---|---|---|---|---|---|---|
WT2003HM01 |
SPI Flash + U Disk | 128Mbit Flash / 32GB U Disk | DIP | 2.0mm | UART, USB | ✓ | Download WT2003HM01.pdf |
WT2003HM02 |
TF Card + U Disk | 32GB TF / 32GB U Disk | DIP | 2.0mm | UART, USB | ✓ | download WT2003HM02.pdf |
WT2003HM03 |
SPI Flash + TF Card + U Disk | 128Mbit / 32GB / 32GB | DIP | 2.0mm | UART, USB | ✓ | download WT2003HM03.pdf |
WT2003HM04 |
Built‑in 900s Storage | 128Mbit Flash | DIP | 2.0mm | UART, USB | ✓ | download WT2003HM04.pdf |
WT2003HM05 |
Custom Configuration | Contact for Details | - | - | - | - | Contact Us |
The WT2605XB04-RF module is based on the WT2605 series chip, offering enhanced functionality including recording capabilities alongside standard MP3 playback features.
| Model | Key Features | Built‑in Flash | External Storage | Recording | Interface | Amplifier | Datasheet |
|---|---|---|---|---|---|---|---|
WT2605XB04‑RF |
Line‑in Recording MIC Recording MP3 Playback UART Control |
✓ | TF Card, U Disk | ✓ Line‑in ✓ MIC |
UART | 0.5W Class D | Download WT2605XB04‑RF.pdf |
Doorbell chimes, alarm notifications, and voice guidance in reliable smart home automation. Low power consumption extends battery life in wireless devices.
Smart meters, environmental sensors with voice alerts, and connected appliances. Low power and multiple storage options suit diverse IoT scenarios.
Equipment status announcements, operation instructions, and warning alerts. Industrial-grade temperature range (-40°C to +85°C) ensures reliable operation.
Patient reminders, medication dispensers, and equipment voice prompts. Clear audio quality meets stringent medical application requirements.
Parking sensors, dashboard warnings, and vehicle status announcements. Automotive-grade temperature support ensures reliable performance.
Product promotions, payment confirmations, and customer guidance. External storage enables easy content updates without firmware changes.
Access control feedback, intrusion alarms, and fire evacuation instructions. Interrupt playback enables priority message insertion during emergencies.
Interactive toys, learning tablets, and story-telling devices. Random playback and folder organization simplify multi-story content management.
All MP3 modules support MP3 format with bit rates from 8kbps to 320kbps. The WT2003H series MP3 modules provide excellent audio quality with 16-bit DAC and frequency response from 20Hz to 16KHz.
MP3 module control is via UART serial interface (3.3V TTL level) with a comprehensive command protocol. Default baud rate is 9600, with support for DMA and flow control. Commands cover playback control, volume adjustment, file selection, and status queries.
Yes. MP3 modules with TF card or U disk support allow drag-and-drop file updates. MP3 modules with SPI Flash can be updated via the built-in USB interface, which appears as a removable drive on Windows XP/7/10 systems.
MP3 module input voltage (VBAT): 2.8V to 5.5V. The module includes an internal 3.3V regulator (VDDIO output) for powering external components if needed.
Yes. All MP3 modules include a built-in 0.5W Class D power amplifier capable of driving 8Ω speakers directly. Alternatively, you can switch to DAC output mode (via command 0xB6) for connection to external amplifiers.
MP3 modules support 32 volume levels (00-1F hex), where 00 is mute and 1F (31 decimal) is maximum volume. Volume can be adjusted in real-time via UART command.
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