Looking for Vc-02 Kit? Ai-Thinker VC-02-Kit is available at Zbotic with fast shipping across India.

Ai-Thinker VC-02-Kit

Vc-02 Kit – Description:

The VC-02-Kit is a development board designed for the VC-02 module, and it is a shared the same board with the VC-01-Kit. The development board integrates the CH340C serial port to a USB chip, providing a basic debugging interface and USB upgrade interface, designing wake-up light and cold and cooling lamp, providing status indication and control instructions, and easy to debug the simple control function. VC-02 is a low-cost pure offline speech recognition module developed by Shenzhen Ai-Thinker Technology Co., Ltd.

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.

The US516P6 chip uses a 32-bit RSIC architecture core and incorporates a DSP instruction set specifically for signal processing and speech recognition, an FPU arithmetic unit that supports floating-point operations, and an FFT accelerator. VC-02 supports offline identification of 150 local instructions, an RTOS lightweight system, rich peripheral interfaces, and simple and friendly custom tools.

Features: 

• All GPIOs can be configured as external interrupt input and wake-up source
• One full-duplex UART with the maximum rate of 3Mbps
• Support I2C，DAC，PWM and multiple interfaces
• Built-in 242KB high-speed SRAM
• Built-in 2MB FLASH
• Support dual-channel DAC output
• 32bit RISC core, running at 240MHz
• Support DSP instruction set and FPU floating point operation unit

Specification:

• Module: VC-02
• Package: DIP-19（2.54 spatial standard pin header）
• Working temperature: -40 ℃ ~ 85 ℃
• Storage environment: -40 ℃ ~ 125 ℃ , < 90%RH
• Supply voltage: 5V,
• Current: greater than 500mA
• Interfaces UART/I2C/PWM/DAC/GPIO
• IO: 5 GPIOs
• UART rate: UART1 default 115200 bps、UART0(IOB 8) default 57600Flash 2MB
• Size 42.2 x 35.6(±0.2)mm

Datasheet:

Packages Includes:

1 x Ai-Thinker VC-02-Kit

Ai-Thinker VC-02-Kit Overview

The Ai-Thinker VC-02-Kit is a development board built around the VC-02 offline speech recognition module. It provides a USB debugging interface via the CH340C chip and integrates status indicators and control lamps for rapid prototyping of voice-controlled applications.

Key Features of Ai-Thinker VC-02-Kit

• Integrated CH340C USB-to-serial chip for easy debugging and firmware updates
• 5 V supply voltage with current consumption over 500 mA for stable operation
• Multiple interfaces: UART, I2C, PWM, DAC and GPIO for flexible connectivity
• On-board wake-up light plus cold and cooling lamp indicators to show module status
• Offline speech recognition powered by the Unisound US516P6 voice chip
• Fast shipping across India from Zbotic for quick project deployment

Applications and Use Cases

• Voice-activated lighting systems with custom wake-up commands
• Home automation control modules for fans, AC units or smart appliances
• Hands-free interactive kiosks and information displays
• Prototyping voice assistants and standalone voice control devices
• Educational robotics projects teaching offline speech interfaces
• Industrial voice command panels without cloud dependency

How to Use Ai-Thinker VC-02-Kit

Connect the kit to your PC via USB to power it with 5 V and access the CH340C serial port. Use the UART or I2C pins to interface with your microcontroller, uploading your control logic or voice command data. Configure the wake-up word and test the cold/cooling lamp indicators through simple serial commands to verify offline recognition performance.

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 qualifying orders
• 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

What voltage and current does the VC-02-Kit require?

The development board runs on 5 V and typically draws over 500 mA when the module is active. Ensure your USB port or power supply can deliver sufficient current for stable operation.

Which communication interfaces are available on the VC-02-Kit?

This kit provides UART and I2C for data exchange, PWM and DAC outputs for lamps, and GPIO pins for additional sensors or actuators. Use these interfaces to integrate the module into custom control systems.

How does the offline speech recognition work?

The VC-02 module uses the Unisound US516P6 voice processor, allowing offline recognition of predefined commands without an internet connection. Upload your command models via USB and trigger control lamps or external devices based on recognition results.