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The Ai-Thinker VC-02 is an intelligent voice control solution that enables offline speech recognition, so a device can respond to spoken commands without connecting to a cloud service. It is designed for embedded systems and IoT applications, offering low-latency performance and integration with Arduino, ESP32 and STM32 platforms.
It is aimed at smart home, robotics, IoT and embedded AI voice control projects, such as switching an appliance on or off, or triggering an action with a spoken word.
The module (model VC-02-Kit) runs from 5 V and draws about 500 mA. It has 2 MB of flash and a 32-bit RISC core running at up to 240 MHz with 242 KB of high-speed SRAM. Communication includes a high-speed UART supporting full-duplex data up to 3 Mbps, plus I2C, DAC, PWM and GPIO interfaces. It has dual-channel DAC output, configurable GPIOs with external interrupt and wake-up support, and a DSP instruction set with an FPU.
Train or configure the recognised commands using the maker's tools, wire the UART to your host controller and use the DAC output if you want audio feedback. Power the module from a clean, adequately rated supply, since radio modules draw current in short bursts that a weak supply cannot follow. Keep the antenna clear of metal and ground planes, and start with the maker's example code before writing your own.
Makers and product developers adding simple, offline voice commands to smart home devices, robots and appliances.
No, recognition works offline.
A 32-bit RISC core running up to 240 MHz.
Full-duplex up to 3 Mbps.
5 V.
Arduino, ESP32 and STM32.
| Brand | Ai-Thinker |
|---|---|
| Selling unit | PCS |
