Introduction
The Gravity: Offline Voice Recognition Sensor is an offline voice recognition module that utilizes a new offline voice recognition chip. It comes with 121 built-in commands and supports 17 custom commands, functioning even without an internet connection. It adopts a dual-microphone design for superior noise resistance, and is equipped with built-in and external speaker interfaces for real-time feedback. Compatible with various 3.3V or 5V controllers, it's an ideal choice for applications requiring voice control or interaction, like smart homes, toys, lamps, and robot projects.

Self-Learning Function
This voice recognition module is equipped with a self-learning feature, supporting the addition of 17 custom command words. It offers the flexibility to train any sound as a command, such as a whistle, a snap, or even a cat's meow, greatly enhancing the versatility of interactive audio projects.

User-Friendly
The offline speech recognition sensor boasts a user-friendly design. It comes with 121 built-in fixed command words, eliminating the need for users to record their own voices.

Real-Time Voice Feedback

The module is equipped with an integrated speaker and an interface for an external speaker, enabling it to deliver real-time vocal feedback on recognition outcomes.The module is equipped with an integrated speaker and an interface for an external speaker, enabling it to deliver real-time vocal feedback on recognition outcomes.

High Compatibility

Support I2C and UART, with a Gravity interface

Compatible with 3.3V/5V

Specification
Operating Voltage: 3.3 - 5V
Maximum Operating Current:≤370 mA (5V)
Communication: I2C/UART
I2C Address: 0x64
Fixed Command: 121
Fixed Wake-up Command: 1
Custom Command: 17 Learning Activation Command: 1
Onboard Microphone Sensitivity: -28db
Module Size: 49 32 mm/1.93 1.26”

Wireless Type	Bluetooth
Brand	DFROBOT
Series	AI Offline Language Learning Voice and Speech Recognition Module
Item model number	SEN0539-EN
Item Weight	0.704 ounces
Product Dimensions	1.93 x 1.26 x 1.26 inches
Item Dimensions LxWxH	1.93 x 1.26 x 1.26 inches
Processor Brand	Multiple
Number of Processors	1
Manufacturer	DFROBOT
ASIN	B0C5XG3BXW
Date First Available	May 22, 2023

DFROBOT Gravity: Offline Language Learning Voice Recognition Sensor for Arduino/Raspberry Pi/Python / ESP32 - I2C & UART

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Description

Specifications

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