Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Development, Learning, Evaluation & Industrial Control Boards |
| Origin | - |
| Recognition Mode | Offline Voice Recognition (No Internet Required) |
| Supported Languages | English, Mandarin Chinese, Spanish, French |
| Max Command Count | Up to 80 customizable voice commands |
| Interface Type | UART, I2C, GPIO |
| Operating Voltage | 3.3V - 5V DC |
| Microphone Input | Dual Microphone Array Support |
| Response Time | < 200ms average latency |
| Development Environment | Web-based Configuration Tool & SDK |
| Dimensions | 45mm x 30mm x 8mm |
| Package Contents | VC-02 Module, Microphone Board, USB Cable, Jumper Wires |
Anonymous
Mar 29, 2026
Rating: 4/5
Solid value for money
Compared to other AI voice modules on the market, this offers the best balance of price and performance. The UART interface makes it easy to connect to ESP32 or Arduino boards.
Anonymous
Mar 27, 2026
Rating: 5/5
Perfect for offline IoT projects
I needed a voice module that didn't rely on cloud APIs for my home automation project. The VC-02 works flawlessly out of the box. The web configuration tool is intuitive, and recognizing custom commands took less than 10 minutes to set up.
Anonymous
Mar 19, 2026
Rating: 5/5
Excellent for student projects
We bought ten kits for our university embedded systems course. Students love that they don't need Wi-Fi to test their code. The dual microphone support helps significantly in a noisy classroom environment.
Anonymous
Mar 18, 2026
Rating: 4/5
Great hardware, documentation could be better
The recognition accuracy is impressive even with background noise. However, the English documentation for the advanced GPIO triggering features is a bit sparse. Once I figured it out via the community forum, it worked great.
Anonymous
Mar 05, 2026
Rating: 5/5
Fast response time
Used this to control a small robotic arm. The latency is incredibly low, making the interaction feel natural. Being offline means no privacy concerns either, which is a huge plus for my clients.
Anonymous
Mar 03, 2026
Rating: 3/5
Good but limited vocabulary size
It works well for simple commands like 'Light On' or 'Motor Stop'. If you try to load too many complex phrases, the recognition rate drops slightly. Stick to the recommended command count for best results.
Q: What is the effective recognition distance?
A: In a quiet environment, the effective range is approximately 3 to 5 meters. With the optional dual-microphone array board included in the kit, noise cancellation improves performance in louder settings.
Q: Is an internet connection required for initial setup?
A: An internet connection is only needed once to access the online configuration portal to generate the firmware model. After downloading the model to the module, it operates completely offline.
Q: Does this module work with Raspberry Pi?
A: Absolutely. You can connect the VC-02 to a Raspberry Pi via the UART TX/RX pins. We provide Python example scripts in our GitHub repository to get you started quickly.
Q: Can I train the module to recognize my own specific wake words?
A: Yes, the web-based configuration tool allows you to customize wake words and up to 80 specific command phrases without needing to write complex code.
Q: Can I output audio responses through this module?
A: The VC-02 is primarily a recognition module. It outputs serial data or GPIO signals upon recognizing a command. To play audio responses, you would need to connect an external speaker module triggered by the VC-02's output.
Premium Factory Price Low-Temp 3D Printing Pen (2-Pack) - Compatible with PCL Filament
$67.91
Music Theory Book Jazz Theory Introduction Volume 1 Jazz Teaching Theoretical Knowledge Basic Textbook Tutorial HD Electronic Version
$5.00
Extra-Large Transparent Plastic Storage Box with Lid, Home Organizer for Clothes and Household Items
$4.80
Baijiali Artistic Eyebrow Hair Transplant: Bilateral Filling for Sparse Areas, Dense and Natural-Looking Results
$7,800.00
Plastic U-Shaped Trough Mold for Yam Cultivation, Directional Shallow Growth Slots (100 Pieces, Free Shipping)
$31.40
Maikeku Commercial Slow Juicer, Large Pulp-Separating Juice Extractor with High Power, Wide Mouth, Fully Automatic for Street Vending
$7,456.32
Continental CSC5 Tire 245/50R18 104V MO-V for Mercedes-Benz Viano, Vito, V260
$882.00
English Vocabulary Flashcards for Classroom Teaching - Categories Include Weather, Days, Months, Clothing, Home, Seasons, Fruits, Food, and Professions
$8.42
Cabinet Storage Box, Foldable Rattan-Style Basket for Countertop Snacks, Clothes, and Toys
$19.90
Custom PVC Sign Letters, Advertising Signs, Branding Wall Characters, Snowflake Board, Acrylic Crystal Letters for Background Walls
$5.00
Specialized Vegetable Growing Box - Foam Balcony Planter, Rectangular Plastic Pot for Home Gardening
$41.70
Fully Protected Smart Battery Tester - Performance Detector for Electric Vehicle and Car Batteries
$286.00
Large-Diameter Steel Corrugated Drainage Pipe for Bridge Culverts
$61.11
Water Curtain Paint Booth - 3-Meter Spray Station with Water Circulation for Paint Mist Purification, Eco-Friendly Dust Removal, 1-Meter Small Water Curtain Cabinet
$1,980.00
Portable Cleaning and Storage Box for Elderly Dentures, Compact Case for Full-Set False Teeth Soaking and Storage
$32.22
RC Model A07 PNP FPV Analog/Digital Racing Drone 7-Inch Aerial Photography Quadcopter Frame
$1,643.00
ACCSOON SeeMo Monitor Converter for iPhone and iPad, Real-Time Monitoring and Live Streaming
$1,059.00
Solenoid Valve Initial Inspection Test Bench / Solenoid Valve Leakage Test Bench / Solenoid Valve Airtightness Test Bench
$7,482.00
Factory Direct Hardware Screw and Parts Automatic Weighing and Packaging Machine, Vertical Weighing and Packing Equipment
$36,860.00
Commercial Heated Beverage Cabinet, Small Countertop Display Warmer with Constant Temperature for Supermarkets
$1,099.00
Manufacturer Supply Standard Dual-Color Film Copy Paper Ink Water-Based Ink Gravure Printing Machine
$17,500.00
Gray Surface Pen for Sketching and Quick Drawing - Art Highlight Sketch Paper Blending Stump and Sponge Eraser Tool Set for Still Life, Geometry, and Portraits, Designed for Art Students and Exam Candidates, Complete Beginner Kit
$6.80
Extra-Large Denture Storage Box for Seniors, Food-Grade Portable Cleaning and Soaking Container for Full Dentures
$29.90
![[Sheet Music Collection for Teachers] Continuously Updated – HD, No Watermark, Includes Tutorial Videos](https://www.gosteppe.com/cache/small/product/270366/legacy-main-31b5e0667fb30a4c5628abbc.webp)
[Sheet Music Collection for Teachers] Continuously Updated – HD, No Watermark, Includes Tutorial Videos
$49.90
Orthodontic Retainer Case for Invisible Braces, Portable Storage and Cleaning Box for Teeth Aligners and Dentures
$23.10
Portable Retainer Case for Braces, Orthodontic Clear Aligner Storage Box with Chewie and Removal Tool
$3.98
Freestanding Multi-Tier Toilet Storage Rack for Bathroom, Laundry, and Balcony Organization
$174.00
Biliansheng Hair Transplant and Care - Herbal Hair Nourishment Treatment Package
$480.00
Traditional Wooden Rattle Drum with Sheepskin Head for Babies - Chewable Handheld Toy with Fortune Zodiac Design
$11.90
2026 Spring New FLTRP Grade 3 English Vocabulary & Sentence Flashcards for Classroom Teaching
$8.42
![[Youxin Electronics] GP2Y0E03 Infrared Distance Sensor Module 4-50cm Range](https://www.gosteppe.com/cache/medium/product/74667/legacy-main-4da8cadc5fc82afe91b124e3.webp)
![[Trial Pack] Xianlang Complete Cat Treat Sticks Meal Packs Main Course Cans Freeze-Dried Cat Food Sample Snacks Gift Set](https://www.gosteppe.com/cache/medium/product/208273/legacy-main-9ec245ebf781f65a434ba854.webp)
