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Ai-Thinker VC-02 Offline Voice Recognition Module
Build smart voice-controlled devices with the Ai-Thinker VC-02 - a compact, high-performance offline voice recognition module powered by a dedicated AI chip. Ideal for home automation, smart appliances, and IoT products requiring local voice command processing without cloud dependency. Available now at The Engineer Store, Bengaluru with fast shipping and expert support.
Specifications
| Module | Ai-Thinker VC-02 |
| Core Chip | US516P6 (Unisound Hummingbird-M AI Chip) |
| Processing | Dedicated Neural Network Processor for voice AI |
| Voice Recognition | Offline / Local (no internet required) |
| Wake Word | Customizable keyword activation |
| Command Sets | Supports up to 150+ offline voice commands (Chinese default, customizable) |
| Recognition Distance | Up to 3-5 meters in typical environments |
| Audio Interface | Built-in ADC; supports external microphone input |
| Speaker Output | Built-in DAC with direct speaker drive capability |
| Communication Interfaces | UART, GPIO, PWM, I2C |
| Operating Voltage | 3.3V (typical) |
| Power Consumption | Ultra-low power in standby; optimized for always-listening applications |
| Module Dimensions | Compact SMD form factor (~18mm x 20mm approx.) |
| Operating Temperature | -20 degreesC to +70 degreesC |
| Development Tools | Ai-Thinker / Unisound SDK, serial configuration tool |
| Antenna | N/A (no Wi-Fi/BT - pure voice processing module) |
| Type | Offline Voice Recognition AI Module |
| Origin | Original Ai-Thinker - 100% Authentic |
| Warranty | 7-day warranty on manufacturing defects |
| Support | Email & WhatsApp 24/7 |
Key Features
- Fully Offline Voice Recognition: All speech processing happens locally on the chip - no cloud, no internet, no latency, and complete data privacy.
- Dedicated AI Chip (US516P6): Purpose-built neural network processor delivers fast, accurate voice command recognition with minimal power draw.
- Customizable Wake Words & Commands: Define your own activation keyword and up to 150+ voice commands using the SDK and configuration tools.
- Built-in Audio Codec: Integrated ADC and DAC allow direct microphone input and speaker output - minimizing external components needed.
- Speaker Drive Capability: Can directly drive a small speaker for voice prompts and feedback without requiring an external amplifier for low-power speakers.
- Multiple Control Interfaces: UART for MCU communication, plus GPIO and PWM outputs to directly control LEDs, relays, motors, and other peripherals.
- Ultra-Compact Form Factor: Tiny SMD module easily integrates into space-constrained product designs and custom PCBs.
- Low Power Design: Optimized for always-on listening applications - suitable for battery-powered and energy-conscious products.
- Fast Integration: Serial command protocol and pre-built firmware options allow rapid prototyping and product development.
- Wide Operating Temperature: Industrial-grade temperature range (-20 degreesC to +70 degreesC) for reliable operation across environments.
Why Choose the Ai-Thinker VC-02?
- No Cloud Dependency: Unlike Alexa or Google-based solutions, the VC-02 processes everything on-device - works without Wi-Fi, ensuring zero latency and full privacy.
- Cost-Effective Voice AI: Add natural voice control to products at a fraction of the cost of cloud-based voice platforms.
- Production-Ready Module: Designed for both prototyping and mass production - Ai-Thinker modules power millions of commercial products worldwide.
- 100% Authentic: Sourced directly from authorized Ai-Thinker distribution channels - guaranteed genuine.
- 1-5 days shipping: Ships from our Bengaluru warehouse to anywhere in India. Same-day delivery available in Bengaluru.
- Expert Technical Support: Our engineering team helps you with integration, firmware configuration, and troubleshooting.
Project Ideas
- Voice-Controlled Home Automation: Build a smart home hub that responds to voice commands to control lights, fans, curtains, and appliances - all without internet connectivity.
- Smart Appliance Upgrade: Add voice control to kitchen appliances, air purifiers, humidifiers, or washing machines for a premium user experience.
- Voice-Activated Lighting System:
Frequently Asked Questions
When will I receive my order?
Products ship within 1-5 days from our Bengaluru warehouse. Delivery within 7-8 days to most locations across India.
Is technical support available?
Yes, 24/7 support via email and WhatsApp for setup, troubleshooting, and application guidance.
What is your return policy?
7-day returns on manufacturing defects only. Full refund or replacement. Not applicable for user damage or misuse.
Are bulk discounts available?
Yes, wholesale pricing on orders of 10+ units. Contact us via WhatsApp or email for a custom quote.
Buy Ai-Thinker VC-02 module Online in India
Purchase the Ai-Thinker VC-02 module online at The Engineer Store - India's most trusted electronics components store. We deliver across all major cities including Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on Ai-Thinker VC-02 module with fast 1-5 day shipping from our Bengaluru warehouse. All products are 100% authentic, sourced from authorized distributors with 7-day warranty on manufacturing defects.
Looking to buy Ai-Thinker VC-02 module at the best price in India? The Engineer Store offers competitive pricing, bulk discounts for orders of 10+ units, and dedicated technical support via email and WhatsApp. Whether you are a hobbyist, student, or professional engineer, we have everything you need for your electronics projects.
Ai-Thinker VC-02 Offline Voice Recognition Module
Build smart voice-controlled devices with the Ai-Thinker VC-02 - a compact, high-performance offline voice recognition module powered by a dedicated AI chip. Ideal for home automation, smart appliances, and IoT products requiring local voice command processing without cloud dependency. Available now at The Engineer Store, Bengaluru with fast shipping and expert support.
Specifications
| Module | Ai-Thinker VC-02 |
| Core Chip | US516P6 (Unisound Hummingbird-M AI Chip) |
| Processing | Dedicated Neural Network Processor for voice AI |
| Voice Recognition | Offline / Local (no internet required) |
| Wake Word | Customizable keyword activation |
| Command Sets | Supports up to 150+ offline voice commands (Chinese default, customizable) |
| Recognition Distance | Up to 3-5 meters in typical environments |
| Audio Interface | Built-in ADC; supports external microphone input |
| Speaker Output | Built-in DAC with direct speaker drive capability |
| Communication Interfaces | UART, GPIO, PWM, I2C |
| Operating Voltage | 3.3V (typical) |
| Power Consumption | Ultra-low power in standby; optimized for always-listening applications |
| Module Dimensions | Compact SMD form factor (~18mm x 20mm approx.) |
| Operating Temperature | -20 degreesC to +70 degreesC |
| Development Tools | Ai-Thinker / Unisound SDK, serial configuration tool |
| Antenna | N/A (no Wi-Fi/BT - pure voice processing module) |
| Type | Offline Voice Recognition AI Module |
| Origin | Original Ai-Thinker - 100% Authentic |
| Warranty | 7-day warranty on manufacturing defects |
| Support | Email & WhatsApp 24/7 |
Key Features
- Fully Offline Voice Recognition: All speech processing happens locally on the chip - no cloud, no internet, no latency, and complete data privacy.
- Dedicated AI Chip (US516P6): Purpose-built neural network processor delivers fast, accurate voice command recognition with minimal power draw.
- Customizable Wake Words & Commands: Define your own activation keyword and up to 150+ voice commands using the SDK and configuration tools.
- Built-in Audio Codec: Integrated ADC and DAC allow direct microphone input and speaker output - minimizing external components needed.
- Speaker Drive Capability: Can directly drive a small speaker for voice prompts and feedback without requiring an external amplifier for low-power speakers.
- Multiple Control Interfaces: UART for MCU communication, plus GPIO and PWM outputs to directly control LEDs, relays, motors, and other peripherals.
- Ultra-Compact Form Factor: Tiny SMD module easily integrates into space-constrained product designs and custom PCBs.
- Low Power Design: Optimized for always-on listening applications - suitable for battery-powered and energy-conscious products.
- Fast Integration: Serial command protocol and pre-built firmware options allow rapid prototyping and product development.
- Wide Operating Temperature: Industrial-grade temperature range (-20 degreesC to +70 degreesC) for reliable operation across environments.
Why Choose the Ai-Thinker VC-02?
- No Cloud Dependency: Unlike Alexa or Google-based solutions, the VC-02 processes everything on-device - works without Wi-Fi, ensuring zero latency and full privacy.
- Cost-Effective Voice AI: Add natural voice control to products at a fraction of the cost of cloud-based voice platforms.
- Production-Ready Module: Designed for both prototyping and mass production - Ai-Thinker modules power millions of commercial products worldwide.
- 100% Authentic: Sourced directly from authorized Ai-Thinker distribution channels - guaranteed genuine.
- 1-5 days shipping: Ships from our Bengaluru warehouse to anywhere in India. Same-day delivery available in Bengaluru.
- Expert Technical Support: Our engineering team helps you with integration, firmware configuration, and troubleshooting.
Project Ideas
- Voice-Controlled Home Automation: Build a smart home hub that responds to voice commands to control lights, fans, curtains, and appliances - all without internet connectivity.
- Smart Appliance Upgrade: Add voice control to kitchen appliances, air purifiers, humidifiers, or washing machines for a premium user experience.
- Voice-Activated Lighting System:
Frequently Asked Questions
When will I receive my order?
Products ship within 1-5 days from our Bengaluru warehouse. Delivery within 7-8 days to most locations across India.
Is technical support available?
Yes, 24/7 support via email and WhatsApp for setup, troubleshooting, and application guidance.
What is your return policy?
7-day returns on manufacturing defects only. Full refund or replacement. Not applicable for user damage or misuse.
Are bulk discounts available?
Yes, wholesale pricing on orders of 10+ units. Contact us via WhatsApp or email for a custom quote.
Buy Ai-Thinker VC-02 module Online in India
Purchase the Ai-Thinker VC-02 module online at The Engineer Store - India's most trusted electronics components store. We deliver across all major cities including Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on Ai-Thinker VC-02 module with fast 1-5 day shipping from our Bengaluru warehouse. All products are 100% authentic, sourced from authorized distributors with 7-day warranty on manufacturing defects.
Looking to buy Ai-Thinker VC-02 module at the best price in India? The Engineer Store offers competitive pricing, bulk discounts for orders of 10+ units, and dedicated technical support via email and WhatsApp. Whether you are a hobbyist, student, or professional engineer, we have everything you need for your electronics projects.