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.
Silicone Mold for Scented Candles, Striped Column Shape for Resin, Plaster, and DIY Craft Projects
$3.90
Meilin Brush Studio Thickened Felt Mat - Wool Felt Pad for Calligraphy Practice, Painting, and Traditional Four Treasures of the Study, Customizable
$4.93
DC Drive DCS800-S02-0680-05
$46,431.80
![[Anna's Ball] Lolita Ballet-Style JSK Dress, Bridal Princess Gown for Birthdays](https://www.gosteppe.com/cache/small/product/269514/legacy-main-1b2dd267b554e99ad3715dd8.webp)
[Anna's Ball] Lolita Ballet-Style JSK Dress, Bridal Princess Gown for Birthdays
$188.00
Hahnemühle Renamed Canson New Moulin Watercolor Paper - Cotton Pulp - UK Hahnemühle Original Paper for Colored Pencils - High White and Natural White
$10.50
Biliansheng Hair Transplant: Hairline Restoration and Top Density Enhancement
$10,000.00
Yingtou NO.9 Nylon Scouring Pad Roll - Industrial Rust Removal and Cleaning Cloth Manufacturer
$84.00
PELICAN 1170 Safety Protective Case Outdoor Waterproof Case Pelican Small Moisture-Proof Bracelet Case Free Shipping
$595.00
Disposable Face Towel Storage Box Wall-Mounted for Bathroom
$8.42
Traditional Handmade Sheepskin Rattle Drum for Babies - Wooden Non-Toxic Teething Toy for Early Education (Intangible Cultural Heritage)
$25.90
Commercial Vegetable Cutter for Chili, Branches, Pandan Leaves; Dicing and Slicing Machine; 304 Stainless Steel Bean Cutter
$18,630.00
Heavy-Duty Paper Cutter Parts - 20-Year Shandong Store Blade Holder Wooden Block Replacement Pad
$50.00
Ammonia Decomposition Hydrogen Production Equipment, Ammonia Cracking Furnace, Liquid Ammonia to Hydrogen System, Air Separation Unit
$15,479.00
Strawberry Planting Trough - Soil-Free A-Frame Vertical Planter for Vegetables and Fruits
$14.80
Forged Steel Wheel Hub Bolts Grade 12.9 Extended Screws Fade-Resistant for VW, Audi, Mercedes-Benz, BMW
$95.00
Retainer Storage Case Orthodontic Appliance Soaking Cleaning Box Portable Invisible Aligner Holder for Dentures
$2.80
Baby Sheepskin Rattle and Shaker Stick - Brass and Peach Wood, Old-Style Handmade, Chewable, Newborn Gift Box
$74.00
Portable Orthodontic Retainer Cleaning Case - Rotating Travel Box for Invisible Aligners
$17.60
Full Denture Soaking and Storage Box with Filter Net for Retainers and False Teeth
$4.80
Anka Bella Face Painting Pen Facial Special Brush Embossing Pen Line Drawing Petal Professional Pigment Pen
$4.17
Balloon Warm Star Pre-sale: Do You Have an Illness? Phase 1 - Clash of Hearts Little Chu Su Series Merchandise
$16.00
Car Tire Stone Removal Hook - Portable Multi-function Tool for Cleaning Gravel from Tire Treads
$7.00
Imported TRANS Gearbox Eccentric Bearing 614 59 7187 616 0608 11-15 11 YSX
$183.00
Sichuan Rongxian Earthware Minfeng Wine Jar, Home Pottery with Porcelain Liner, 600-Jin Unglazed Sealed Fermentation Vessel for Homemade Liquor
$901.00
Garlic Drum Sorting Machine - Single-Clove Garlic Grading Separator and Onion Sizing Sorter - Factory Direct Sales
$38,080.00
Aizaofang Food-Grade Soft Silicone Handmade Soap Mold Korean Rectangular 3D Tree Shadow Silicone Mold
$23.00
JMC Yusheng & Yuhu Parts – Crankshaft Position Sensor, Signal Sensor, Original Equipment
$95.00
![[10% Off for 2 Items] Calligraphy Wool Felt Mat - Double-Sided Painted Practice Pad for Students, Bulk Wholesale, Includes Arm Rest and Four Treasures of the Study Set](https://www.gosteppe.com/cache/small/product/269490/legacy-main-410a655856aab1e0462d6c84.webp)
[10% Off for 2 Items] Calligraphy Wool Felt Mat - Double-Sided Painted Practice Pad for Students, Bulk Wholesale, Includes Arm Rest and Four Treasures of the Study Set
$6.63
Leak-Proof Retainer Case with Double-Layer Filter for Braces, Aligners, and Dentures - Portable Cleaning and Soaking Box
$22.50
Car Tire Stone Removal Hook Tool, Explosive Tire Prevention Gadget, Durable Zinc Alloy Tire Cleaning Hook for Automotive Care
$10.90
![[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)
