Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Development, Learning, Evaluation & Industrial Control Boards |
| Origin | - |
| Brand | Ai-Thinker |
| Model Number | VC-02-Kit |
| Recognition Type | Offline Voice Recognition |
| Microphone Interface | Digital Microphone Array Support |
| Supported Languages | Chinese, English (Customizable) |
| Command Capacity | Up to 50 Custom Commands |
| Communication Interface | UART, GPIO |
| Operating Voltage | 3.3V - 5V DC |
| Package Contents | Main Board, Microphone Module, Cables, Documentation |
| Application Scenario | Smart Home, IoT Prototyping, Industrial Control |
Anonymous
Mar 18, 2026
Rating: 3/5
Works well in quiet rooms
The recognition accuracy drops significantly if there is background noise like a fan or TV. It's great for controlled environments but might need an external noise-canceling mic for living rooms.
Anonymous
Mar 17, 2026
Rating: 5/5
Perfect for offline projects
This module works exactly as described. The offline recognition is fast and doesn't require an internet connection, which is crucial for my privacy-focused smart home setup. Integration with ESP32 was straightforward.
Anonymous
Mar 13, 2026
Rating: 5/5
Great for student projects
Bought five kits for our university robotics club. Students found the UART interface easy to parse and the response time is impressive for a standalone chip. Highly recommended for education.
Anonymous
Mar 13, 2026
Rating: 4/5
Good value but needs tuning
Great hardware for the price. The default command set is limited, but the software tools allow you to train custom commands easily. Had to adjust the microphone sensitivity slightly for noisy environments.
Anonymous
Mar 04, 2026
Rating: 5/5
Excellent documentation
I was worried about the learning curve, but the provided wiki and example codes made getting started very easy. Successfully controlled a relay board within an hour of unboxing.
Anonymous
Mar 01, 2026
Rating: 4/5
Solid performance
Using this to control lights without Alexa or Google. It feels much more responsive since there is no cloud latency. The only downside is the initial configuration software only runs on Windows.
Q: Can I add my own custom voice commands?
A: Yes, the VC-02-Kit includes a PC-based configuration tool that allows you to define and train up to 50 custom voice commands tailored to your specific application.
Q: Does this module support Wi-Fi connectivity directly?
A: No, this is a pure offline voice recognition module. It communicates via UART or GPIO. You can connect it to a separate Wi-Fi module (like ESP8266 or ESP32) if internet connectivity is required for action execution.
Q: Can this recognize continuous speech or just single keywords?
A: This module is designed for keyword spotting and specific command phrases rather than continuous natural language conversation. It triggers actions based on predefined command strings.
Q: Is the configuration software compatible with macOS?
A: Currently, the official configuration tool is designed for Windows OS. Mac users may need to run a Windows virtual machine or use a PC for the initial command setup.
Q: What is the effective recognition distance?
A: Under normal indoor conditions with low background noise, the effective recognition distance is approximately 3 to 5 meters. This can vary based on ambient noise levels and microphone placement.
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