Why does the refrigerator consume much power during the…

The refrigerator is an indispensable home appliance in the home because it needs 24 hours of continuous operation. However, in the summer, many users find that the electricity charges are inexplicable. Except that the air conditioner needs a lot of power, why does the refrigerator consume

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Portable human-machine interface system based on STM32

Abstract : A portable human-machine interface system based on STM32 processor is designed for total station measurement and calculation. The processor IO port analog bus timing and the external SPI interface Flash memory font library are used to store the word library in the e

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Japan develops underwater visible light communication d…

Japan's Taiyo Yuden and Toyo Electric jointly developed a device for high-speed wireless communication using visible light underwater. A universal blue LED with a low attenuation rate in water achieves a communication speed of up to 50 Mbit/s under water. Under water, since the attenuation rat

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