Looking for Vc-02 Module? Ai-Thinker VC-02 module is available at Zbotic with fast shipping across India.
VC-02 is a low-cost pure offline speech recognition module Ai-Thinker Technology. The module uses the voice chip US516P6 launched by Unisound, and continuously optimizes and innovates algorithms in speech recognition technology. The offline recognition algorithm and chip architecture are deeply integrated to provide customers with ultra-low-cost offline speech recognition solutions. It can be widely and quickly applied to smart homes, all kinds of smart small household appliances, 86 boxes, toys, lamps, and other products that need voice control.
VC-02 supports offline identification of 150 local instructions, an RTOS lightweight system, rich peripheral interfaces, and simple and friendly custom tools.
Features:
- Small in size
- Low power consuuptions
- high efficent working
- low-cost
- Longer life
Specifications:
Packages Includes:
1 x Ai-Thinker VC-02 module
Datasheet:
Ai-Thinker VC-02 module Overview
The Ai-Thinker VC-02 module is a low-cost offline speech recognition board based on the Unisound US516P6 chip. It delivers reliable voice command processing without relying on an external network, making it ideal for embedded voice-control applications.
Key Features of Ai-Thinker VC-02 module
- Pure offline speech recognition using the US516P6 voice chip for secure, local processing
- Supports up to 10 GPIO pins for status LEDs, control signals, or external triggers
- 2 MB SPI flash for storing custom voice models and keywords
- Operates on a standard 5 V supply with 500 mA current draw
- Compact form factor for easy integration into panels, toys, lamps, and appliances
- Genuine Ai-Thinker module with fast shipping from Zbotic across India
Applications and Use Cases
- Voice-activated smart home switches and wall-mounted control panels (86 boxes)
- Embedded voice control in kitchen appliances and small home gadgets
- Interactive toys that respond to spoken commands without internet connectivity
- Smart lighting systems with hands-free on/off and dimming
- Custom industrial control stations requiring offline recognition for safety
How to Use Ai-Thinker VC-02 module
To set up the VC-02 module, power it with a regulated 5 V supply and connect its SPI interface to your development board or programmer. Use Unisound’s configuration tool to upload your custom voice models into the 2 MB flash. Finally, wire the GPIO pins to LEDs or relays as needed, and start issuing commands – the module will detect and output recognized keywords on its IO lines.
Why Buy from Zbotic?
- Genuine Products: All items sourced from authorized distributors
- Fast Shipping: Orders ship within 24 hours with tracking (non backordered products)
- Free Shipping: Free delivery on orders above ₹499
- COD Available: Cash on Delivery, UPI, cards, net banking
- Technical Support: Expert help for setup and troubleshooting
- Easy Returns: Hassle-free replacement for defective products
Frequently Asked Questions
How do I program custom voice commands into the VC-02 module?
Use Unisound’s US516P6 configuration software on your PC, connect via the module’s SPI pins, and compile your keyword list. Once uploaded into the 2 MB flash, the VC-02 will recognize those offline commands.
What are the power requirements for stable operation?
The VC-02 module requires a 5 V DC supply capable of delivering up to 500 mA. A regulated source is recommended to avoid recognition errors due to voltage fluctuations.
Which controllers can interface with the VC-02?
The module communicates over SPI and exposes 10 GPIO lines for status or trigger outputs. It is compatible with most microcontrollers and single-board computers that support SPI, such as Arduino, ESP series, and Raspberry Pi.
Technical Specifications
| Brand | Ai- Thinker |
|---|---|
| Model | VC-02 |
| SKU | AI1694 |
| Weight | 0.0 kg |
| Availability | In Stock |
Applications & Use Cases
The Ai-Thinker VC-02 module is a versatile ai thinker esp modules used across a wide range of applications including WiFi-enabled IoT devices, smart home sensors, web servers, mesh networks, and wireless data logging.
Common use cases:
- Connecting an Arduino project to WiFi
- Building a smart plug or switch
- Creating a wireless sensor network
This product is ideal for IoT developers, home automation enthusiasts, and embedded engineers.
Technical Tip: ESP32 supports both WiFi and Bluetooth. ESP8266 is WiFi-only but more affordable. Both are programmable via Arduino IDE or ESP-IDF.
Shipping & Delivery
- Free shipping on orders above ₹999 across India
- Dispatched within 1-3 business days
- Expected delivery: 3-7 business days depending on location
- Secure packaging to ensure safe transit of electronic components
- Genuine Ai- Thinker product sourced from authorized channels




Anushka Mehta (verified owner) –
Outstanding Ai-Thinker VC-02 module! Programmed it with Arduino IDE. All features work as documented.
Harshit Bhandari (verified owner) –
Good Ai-Thinker VC-02 module. WiFi works well. Sometimes needs a reset but overall solid.
Kabir Bisht (verified owner) –
Great Ai-Thinker VC-02 module. OTA updates work perfectly. Using 5 of these around my house.
Sandhya Kumar –
This Ai-Thinker VC-02 module is amazing for home automation. Connected all my smart devices easily.
Utkarsh Tiwari (verified owner) –
Outstanding Ai-Thinker VC-02 module! Programmed it with Arduino IDE. All features work as documented.
Gauri Patel (verified owner) –
Good Ai-Thinker VC-02 module. WiFi works well. Sometimes needs a reset but overall solid.
Harshit Sen –
Great quality Ai-Thinker VC-02 module. Flashed with ESPHome and it works beautifully.
Ajay Banerjee –
Good Ai-Thinker VC-02 module. WiFi works well. Sometimes needs a reset but overall solid.
Zubin Tiwari (verified owner) –
Good quality Ai-Thinker VC-02 module. Flash memory is sufficient for most projects.
Siddharth Chopra (verified owner) –
Excellent for smart home projects. This Ai-Thinker VC-02 module connects reliably to my router.
Anirudh Rathore –
Nice Ai-Thinker VC-02 module for IoT prototyping. Breadboard compatible which is a plus.
Bhavna Bose –
Love this Ai-Thinker VC-02 module. Built a smart switch with it. Works with Home Assistant perfectly.
Kritika Bhatt (verified owner) –
Excellent for smart home projects. This Ai-Thinker VC-02 module connects reliably to my router.
Jai Khanna (verified owner) –
Excellent Ai-Thinker VC-02 module! WiFi connectivity is strong and stable. Perfect for IoT projects.
Krishna Mittal (verified owner) –
Love this Ai-Thinker VC-02 module. Built a smart switch with it. Works with Home Assistant perfectly.
Aarav Kohli (verified owner) –
Outstanding Ai-Thinker VC-02 module! Programmed it with Arduino IDE. All features work as documented.
Karan Desai (verified owner) –
This Ai-Thinker VC-02 module is a beast for the price. Running a web server on it with no issues.
Akash Rathore –
Perfect for my IoT project. This Ai-Thinker VC-02 module has excellent WiFi performance.
Sandhya Kamath (verified owner) –
Excellent Ai-Thinker VC-02 module! WiFi connectivity is strong and stable. Perfect for IoT projects.
Ankur Reddy (verified owner) –
Superb Ai-Thinker VC-02 module! Using it for my weather monitoring station. WiFi range is impressive.
Aisha Reddy (verified owner) –
Decent Ai-Thinker VC-02 module. Had to install CP2102 drivers but works fine after that.
Anand Rajan (verified owner) –
Love this Ai-Thinker VC-02 module. Built a smart switch with it. Works with Home Assistant perfectly.
Sameer Joshi –
Good quality Ai-Thinker VC-02 module. Flash memory is sufficient for most projects.
Kunal Rao (verified owner) –
Good Ai-Thinker VC-02 module. WiFi works well. Sometimes needs a reset but overall solid.
Sachin Agarwal (verified owner) –
This Ai-Thinker VC-02 module is a beast for the price. Running a web server on it with no issues.