DFRobot
Gravity: Speech Synthesis Module(Support English and Chinese)
The Gravity Speech Synthesis Module converts text to spoken audio in English and Chinese, including mixed-language content. It connects via I2C or UART using...
The Gravity Speech Synthesis Module converts text to spoken audio in English and Chinese, including mixed-language content. It connects via I2C or UART using the standard Gravity interface and includes a built-in speaker, so no additional audio hardware is needed.
The module supports text control identifiers for pronunciation adjustments, making it suitable for voice prompts, time and sensor data announcements, and interactive projects when paired with a speech recognition module.
Key Features
- Text-to-Speech – Supports English, Chinese, and mixed-language reading
- Built-in Speaker – No external speaker required
- Dual Interface – I2C (address 0x40) and UART via Gravity connector
- Text Control Identifiers – Fine-tune pronunciation, speed, and tone
- Wide Compatibility – Works with Arduino, Raspberry Pi, and other 3.3–5 V microcontrollers
Specifications
- Supply Voltage – 3.3–5 V
- Operating Current – < 50 mA
- I2C Address – 0x40
- Operating Temperature – −40 °C to 85 °C
- Operating Humidity – 5–85 % RH
- Dimensions – 37 × 32 mm
Ideal For
- Voice prompts and announcements
- Robot speech and interactive projects
- Sensor data and time readouts
- Accessibility applications
Package Contents
- 1× Gravity Speech Synthesis Module (with built-in speaker)
- 1× Gravity 4-pin I2C/UART sensor cable
Jargon buster
Plain-language definitions for the technical terms used above.
- Gravity
- Gravity is DFRobot’s plug-in connector system for sensors, motors and modules, using standard cables to reduce loose jumper wiring. It matters because Gravity-compatible parts can connect directly to these ports, while non-Gravity parts may need adapters or manual wiring.
- I2C
- I2C is a two-wire communication bus used by many sensors and small modules. It matters because several I2C devices can share the same two wires, but each device needs a compatible address and your controller must support I2C.
- I2C address
- An I2C address is the number a device uses so a microcontroller can tell it apart from other devices on the same I2C bus. It matters because two devices with the same fixed address may conflict if used together.
- UART
- UART is a simple serial connection that sends data over separate transmit and receive wires, often labelled TX and RX. It matters because this module is designed to replace a wired UART cable with a wireless link while keeping the same serial data format.
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Audio & Video
Brands
Supplier page — dfrobot.com
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Related Tutorials
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