End of life - this module is discontinued and not recommended for new designs.
ESP32-DU1906
ESP32-DU1906 is an AIoT voice module powered by ESP32-D0WD-V3 and Baidu's HongHu voice chip DU1906, integrating Wi-Fi, classic Bluetooth, Bluetooth LE, and voice processing circuits for high-quality speech wake-up and interaction.
22 × 42 mm
16MB
Flash
8MB
PSRAM
66
GPIO pins
22×42mm
Size
Specifications
Datasheet ↗Module
FamilyDU1906
Embedded chipESP32-D0WD-V3
GPIO pins66
AntennaPCB antenna
Dev boardESP32-Korvo-DU1906
Operating temp-40°C ~ 85°C
Dimensions22 × 42 × 3.5 mm
Memory
Flash8 / 16 MB
PSRAMUp to 8 MB
Connectivity
Wi-Fi802.11 b/g/n (2.4 GHz)
Bluetooth4.2
BLE4.2
Module variants
2 variantsBase lowest-cost config Top highest spec High-temp extended temperature range
| Variant | Flash | PSRAM | Tags |
|---|---|---|---|
| ESP32-DU1906-N8R8 | 8 MB | 8 MB | Base |
| ESP32-DU1906-N16R8 | 16 MB | 8 MB | Top |
About the ESP32-DU1906
ESP32-DU1906 is an AIoT voice module powered by ESP32-D0WD-V3 and Baidu's HongHu voice chip DU1906, integrating Wi-Fi, Bluetooth, and voice processing for high-quality speech interaction.
- AIoT voice module with Baidu HongHu chip
- 2.4 GHz Wi-Fi and Bluetooth Classic/LE
- Up to 8MB PSRAM
- Wide operating temperature range: -40°C ~ 85°C
- Size: 22 x 42 x 3.5 mm
- High-quality speech wake-up and interaction
The ESP32-DU1906 module comes in two variants:
- ESP32-DU1906-N8R8: This is the basic variant with 8MB of flash memory and 8MB of PSRAM, suitable for most applications.
- ESP32-DU1906-N16R8: This variant features 16MB of flash memory and 8MB of PSRAM, designed for enhanced performance, making it ideal for applications requiring more memory.
Both variants are designed for high-quality speech wake-up and interaction, making them suitable for AIoT voice applications.
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