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AI-Thinker NodeMCU VC-02 Offline Speech Recognition Module

  • All GPIOs can be configured as external interrupt input and wake-up source
  • One full-duplex UART with a 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

Product details

VC-02-Kit is a development board designed for the VC-02 module, uses the voice chip US516P6 launched by Unisound, and continuously optimizes with innovative algorithms in speech recognition technology. The US516P6 chip uses a 32-bit RSIC architecture core. It 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. The offline recognition algorithm and chip architecture are deeply integrated to provide customers with ultra-low-cost offline speech recognition solutions. The development board integrates the CH340C serial port to a USB chip, providing a basic debugging interface and USB upgrade interface, designing a wake-up light and cold and cooling lamp, providing status indication and control instructions, and easily debugging the simple control function.

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