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In order to monitor the heart rate, blood oxygen saturation and blood pressure abnormalities of athletes during exercise and ensure the safety of athletes during exercise, this paper designs a grou...[Details]
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The field of car human-machine interaction has always been a key focus of technology giants. BBA has already completed its layout in car computers, including SAIC represented by Alibaba, Changan repr...[Details]
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For example, chips such as DAC0832 and PDIUSBD12 are all parallel transmission, and the chips have WR and RD pins. When using this chip, you may connect WR and RD to the ordinary IO port of 51...[Details]
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1. Detection of fixed brake resistors Use a multimeter, select the range according to the nominal size of the resistor to be measured, and connect the two test leads to the two ends of the brake resi...[Details]
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The voltage, current, and resistance of any circuit can be calculated using Ohm's law, which states, "Voltage equals current times resistance" (see Figure 1). Therefore, if any two values in this f...[Details]
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Since Benz built the first car for sale in 1886, the automobile has gone through 134 years. With the development of AR technology, its application in the field of automobile safety will continue to e...[Details]
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The pins of stm32 have two uses: GPIO (general purpose io) and AFIO (alternate function io) For some pins (depending on the chip), neither of these two uses exists. For example, in 64-pin products, O...[Details]
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Recently, Alibaba announced that Allwinner Technology, the largest smart voice chip manufacturer in China, and Pingtou Ge have reached a strategic cooperation. Allwinner Technology will develop a new...[Details]
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According to the mynavi website, NEC announced on December 20 that it will set up a "Quantum Computer Promotion Room" in 2020 to work with customers to promote the use of quantum computers, applicati...[Details]
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There are two ways to use Microchip's capacitive touch sensing solution: the relaxation oscillator method detects whether a key is pressed by detecting the change in the frequency of the touch sens...[Details]
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Correct understanding of low-light cameras
There are many different definitions of low light, and there is no consensus. Color cameras range from 0.0004LUX to 1LUX, and black and white cameras range...[Details]
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At present, many non-electrical working parameters of field equipment cannot be collected or recorded in real time, especially the insulation monitoring of substation equipment. Usually, sp...[Details]
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Three methods in C51 MCU solve the dynamic display of digital tube, so that the digital tube can display 1-8 numbers. The codes of the three methods are as follows. At this time, readers need to pay ...[Details]
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According to foreign media reports, researchers at University College London (UCL) are the first in the world to create flexible nanoribbons made of crystalline phosphorus, which are expected to be w...[Details]
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A three-phase inverter is a power electronic device that converts AC power into variable frequency AC power. It is widely used in industrial automation, motor drive and other fields. In practical a...[Details]