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  • 2X /HLK-V20 Smart Voice Recognition Control Board Module Serial Port Module Dual-Mode DIY
    2X /HLK-V20 Smart Voice Recogn...
    Support instruction set and FPU floating point operation unit accelerator: sup... Support instruction set and FPU floating point operation unit accelerator: supports up to 1024 points of complex /IFFT operations or 2048 points of real /IFFT operations Customized voice algorithm operator Storage: Support 1 analog Mic input Support... more
    Details
    $14.21 Free Delivery Go to store
  • 4X /HLK-V20 Smart Voice Recognition Control Board Module Serial Port Module Dual-Mode DIY
    4X /HLK-V20 Smart Voice Recogn...
    [Easy to Install]The cooling fan is powered by a solar panel. It is easy to in... [Easy to Install]The cooling fan is powered by a solar panel. It is easy to install just connect the interface of the solar panel and the fan and put it under the sunlight. [Economical & Practical]: The solar exhaust fan is powered by sunlight which... more
    Details
    $18.30 Free Delivery Go to store
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