Gravity: Voice Recognition Module - I2C & UART

This module uses a new offline voice recognition chip. It comes with 135 commonly used fixed command words and adds a command word self-learning function. The self-learning command word can be any sound, such as a whistle, a snap, or a cat's meow, and supports 17 self-learning command words. The dual-microphone design provides better noise immunity and a longer recognition distance. The module includes a built-in speaker and an interface for an external speaker, allowing real-time voice feedback of recognition results. The module uses I2C and UART communication modes, Gravity interface, and is compatible with Arduino Uno, Arduino Leonardo, Arduino MEGA, FireBeetle series controllers, Raspberry Pi, ESP32, and other main controllers.

Features

• Command word self-learning function: Learn command words through the voice control module, any sound can be used as a command.
• Uses I2C and UART communication modes, Gravity interface.
• Compatible with 3.3V / 5V.
• Built-in 135 commonly used fixed command words.
• Includes a built-in speaker and an interface for an external speaker, allowing real-time voice feedback of recognition results.
• Onboard power indicator (red) and recognition status indicator (blue).
• Dual-microphone design provides better noise immunity and a longer recognition distance.
• Compatible with Arduino controllers: Arduino Uno, Arduino Leonardo, Arduino MEGA, FireBeetle series controllers, Raspberry Pi, ESP32.

Application Scenarios

• Voice recognition interaction
• Voice control terminal
• Competitions & project creation

Specifications

• Operating Voltage: 3.3~5V
• Maximum Operating Current: ≤370 mA(5V)
• Communication Mode: I2C/UART
• I2C Address: 0x64
• Fixed Command Words: 135
• Fixed Wake-up Word: 1
• Learned Command Words: 17
• Learned Wake-up Word: 1
• Onboard Microphone Sensitivity: -28db
• Module Size: 49 * 32 mm

Package Contents

• Gravity: Voice Recognition Module - I2C & UART x1
• Gravity-4P I2C/UART Sensor Connection Cable x1

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