Unit ASR
SKU:U194
Description
Unit ASR is an AI offline speech recognition unit, built with the CI-03T AI intelligent offline speech module. This unit features powerful speech recognition, voiceprint recognition, speech enhancement, and voice detection capabilities. It supports AEC (echo cancellation) to effectively eliminate echo and noise interference, improving speech recognition accuracy. It also supports mid-session speech interruption, allowing it to flexibly interrupt and quickly respond to new commands during recognition. The product comes preloaded with 42 English wake-up and response commands. It uses UART serial communication for data transfer and supports device wake-up via UART or keyword. The unit allows users to customize multi-language wake-up words by regenerating firmware, supporting up to 300 command words. Equipped with a microphone for clear audio capture and a built-in speaker for high-quality audio feedback, this product is widely used in AI assistants, smart homes, security monitoring, automotive systems, robots, smart hardware, and healthcare — making it an ideal choice for intelligent voice interaction.
Features
- CI-03T AI intelligent offline speech module
- Noise reduction processing
- 42 built-in commands preloaded
- Supports up to 300 command words
- UART serial communication
- User-customizable wake-up words
- Microphone and speaker
- Development Platform
- UiFlow1
- UiFlow2
- Arduino IDE
Includes
- 1 x Unit ASR
- 1 x HY2.0-4P Grove Cable (20cm)
- 1 x HY2.0-4P Grove 连接线 (20cm)
Applications
- AI assistants
- Smart homes
- Security monitoring
- Automotive systems
- Robots and smart hardware
- Healthcare
Specifications
| Specification | Parameter |
|---|---|
| AI Module | CI-03T AI intelligent offline speech module |
| Command Capacity | Supports up to 300 command words; 42 built-in commands preloaded |
| Wake Method | UART serial communication or wake-up via voice keyword |
| Microphone | Analog microphone |
| Speaker | Cavity speaker 8Ω@0.8W (for wake-up feedback output) |
| Communication | UART serial communication, default Baud rate: 115200@8N1 |
| Noise Reduction | AEC echo cancellation |
| Power Consumption | Standby: DC 5V / 47.73mA Working: DC 5V / 250.12mA |
| Operating Temp. | 0 ~ 40°C |
| Product Size | 48.0 x 24.0 x 16.0mm |
| Product Weight | 10.7g |
| Package Size | 138.0 x 93.0 x 17.0mm |
| Gross Weight | 16.0g |
Schematics
PinMap
Unit ASR
| HY2.0-4P | Black | Red | Yellow | White |
|---|---|---|---|---|
| PORT.C | GND | 5V | UART_RX | UART_TX |
Model Size
Datasheets
Softwares
Quick Start
Arduino
UiFlow1
UiFlow2
Protocol
Internal Firmware
Other
Video
- Unit ASR Product Introduction & Showcase