Ai-Thinker VC-02-Kit Offline Voice Recognition Module

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

The module uses the US516P6 voice chip from Unisound, continuously optimizing and innovating algorithms in speech recognition technology. The offline recognition algorithm and chip architecture are deeply integrated, offering customers ultra-low-cost offline speech recognition solutions. It can be widely and quickly applied to smart homes, various small smart household appliances, 86 boxes, toys, lamps, and other products requiring voice control.

The US516P6 chip employs a 32-bit RISC architecture core, a DSP instruction set specifically for signal processing and speech recognition, an FPU arithmetic unit supporting floating-point operations, and an FFT accelerator. The VC-02 supports offline recognition of 150 local commands, features an RTOS lightweight system, offers rich peripheral interfaces, and includes simple and user-friendly custom tools.

Key Features of MIKROE SPEAKUP 3 CLICK for Offline Voice Recognition AI Module:

• 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 of MIKROE SPEAKUP 3 CLICK for Offline Voice Recognition AI Module:

• 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(IOB8) default 57600Flash 2MB (built-in)

• Size 42.2 x 35.6(±0.2)mm