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

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SKU: 1601466
  1. Operating Voltage: 3.3 – 5V
  2. Maximum Operating Current: ≤370 mA (5V)
  3. Communication: I2C/UART
  4. I2C Address: 0x64
  5. Fixed Command: 121
  6. Self-learning function

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Brand: DF Robot
Category: Other Sensors

Df Robot Sku1601466 1

This is DFRobot Gravity: Offline Language Learning Voice Recognition Sensor for Arduino / Raspberry Pi / Python / ESP32 – I2C & UART. This Gravity: Offline Voice Recognition Sensor is built around an offline voice recognition chip, which can be directly used without an internet connection. It comes with 121 built-in fixed command words and supports the addition of 17 custom command words. Any sound could be trained as a command, such as whistling, snapping, or even cat meows, which brings great flexibility to interactive audio projects.

Voice recognition is a computer technology that recognizes and converts speech signals into editable text or operational commands through analysis. It allows people to interact with computers by speaking without using a mouse, keyboard, or other input devices. Voice recognition technology has been widely used in applications such as voice assistants, smart homes, voice search, and voice recognition notebooks.

The module features a dual microphone design with better noise resistance and a longer recognition distance, making it relatively accurate and reliable even in noisy environments. It comes with a built-in speaker and an external speaker interface for real-time voice feedback of recognition results. The module uses both I2C and UART communication methods and supports various 3.3V or 5V controllers, including the micro:bit, Arduino (Arduino UNO, Arduino Leonardo, Arduino MEGA), Raspberry Pi, FireBeetle series, and more.

This voice recognition module provides a reliable and flexible voice interaction solution for makers and electronics enthusiasts, and it can be applied to any applications where voice control or interaction is desirable, such as all kinds of smart home appliances, toys, lamps, and robotics projects.


Features:

  1. Self-learning function: Control the module to learn command words by the voice, and any audio can be trained as a command
  2. Support I2C and UART, with a Gravity interface
  3. Compatible with 3.3V/5V
  4. Built-in with 121 commonly-used fixed command words
  5. The module has a built-in speaker and an interface for an external speaker, which can provide real-time voice feedback on recognition results
  6. Equipped with power indicator (red) and recognition status indicator (blue)
  7. Dual microphones provide better noise resistance and longer recognition distance
  8. Compatible with Arduino controllers: Arduino UNO, Arduino Leonardo, Arduino MEGA, FireBeetle series controllers, Raspberry Pi, ESP32

Useful Links:

Library Files: https://github.com/DFRobot/DFRobot_DF2301Q

DFRobot Gravity: Offline Language Learning Voice Recognition Sensor


Package Includes:

1 x DFRobot Gravity: Offline Language Learning Voice Recognition Sensor for Arduino / Raspberry Pi / Python / ESP32 – I2C & UART

1 x Gravity-4P I2C/UART Sensor Connector

SKU: 1601466 Category:
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”

Weight (g)

16

Shipping Weight 0.035 kg
Shipping Dimensions 8 × 7 × 3 cm
6 Months Warranty

This item is covered with a supplier warranty of 6 months from the time of delivery against manufacturing defects only. This is a quality product from the original manufacturer. Only manufacturing defects are covered under this warranty. Replacement will be done against manufacturing defects.


What voids the warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

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Country Of Origin: China