DFRobot Gravity Offline Language Learning Voice Recognition Sensor - I2C & UART Module
The DFRobot Gravity Offline Voice Recognition Sensor is a self-learning module featuring 121 built-in commands and support for 17 custom words, compatible with Arduino, Raspberry Pi, ESP32, and other 3.3V/5V microcontrollers via I2C or UART communication.
Features
- Offline voice recognition chip operates without an internet connection.
- Self-learning function allows training of any sound (whistles, snaps, etc.) as a command.
- Dual-microphone design with -28dB sensitivity for improved noise resistance and longer recognition range.
- Dual-interface communication via I2C (address 0x64) and UART with Gravity connector.
- Built-in speaker and external speaker interface for real-time audio feedback on recognition results.
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This Gravity-series sensor utilizes an offline voice recognition chip, enabling local command processing without cloud dependency. It integrates a dual-microphone array with -28dB sensitivity to enhance signal clarity and operational distance in acoustically challenging environments. The module provides both I2C and UART serial interfaces for flexible integration into Arduino, Raspberry Pi, ESP32, and other 3.3V/5V logic systems.
Engineered for interactive projects, the sensor includes 121 pre-programmed fixed commands and supports the addition of 17 user-trained custom command words. Its self-learning algorithm allows any distinct audio pattern to be registered as a valid trigger. An integrated speaker and external speaker output port enable immediate verbal confirmation of recognized commands, facilitating intuitive user feedback in voice-controlled applications.
Additional Information
| Weight | 0.016 kg |
|---|---|
| Dimensions | 3.2 × 4.9 cm |
