Description The Ai-Thinker VC-02-Kit is an integrated speech recognition development module built around the VC-02 core chip (USi6115 architecture).
Description The Ai-Thinker VC-02-Kit is an integrated speech recognition development module built around the VC-02 core chip (USi6115 architecture). Engineered for standalone offline voice command detection, it processes acoustic signals entirely on-board without requiring Wi-Fi connection, cloud processing, or external network connectivity, ensuring instant trigger response, low latency, and maximum user privacy. The kit features an onboard high-sensitivity electret microphone for voice pickup, a micro-USB power/programming interface, multiple micro-switch user buttons, and a speaker connection header capable of driving a small speaker for customized local voice prompt feedback. It supports customizable voice command wake words and command phrases with high recognition accuracy even in noisy environments. With standard 2.54mm pitch breakout header pins supporting UART serial output, GPIO control pins, and PWM channels, the board can directly trigger relay modules, motor drivers, or interface with external microcontrollers. It is fully compatible with 3.3V and 5V microcontrollers including Arduino, ESP32, ESP8266, Raspberry Pi, PIC, AVR, stripboards, and custom printed circuit boards (PCBs).
| Core Controller | Ai-Thinker VC-02 Module (USi6115 Core) |
|---|---|
| Operating Voltage | 5V DC (via Micro-USB or header pin) |
| Onboard Hardware | Integrated electret microphone, reset switch, and boot button |
| Speaker Interface | Onboard audio output connector for prompt sound playback |
| Local Speech Processing | Fully offline command recognition (No internet or Wi-Fi required) |
| Voice Command Support | Supports custom wake-up words and dozens of offline command words |
| Communication Interfaces | Dual UART (Serial), GPIO, PWM, and I2C/SPI interfaces |
| Status Indicators | Power and status indicator LEDs |
| Header Layout | Standard 2.54mm pitch male header pins for breadboard compatibility |
What is the operating voltage?
5V DC (via Micro-USB or header pin).
Which interface does it use?
Onboard audio output connector for prompt sound playback.
Is it compatible with Arduino and ESP32?
Yes. It works with Arduino, ESP32, ESP8266, Raspberry Pi projects.
Can I buy the Ai-Thinker VC-02-Kit in Kanpur?
Yes – buy online with delivery across India, or pick it up from the iTechBuilders store, Damodar Nagar, Kanpur.
