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In September 2013, Apple introduced the fingerprint-based Touch ID feature to the world at the iPhone 5s launch event, kicking off a trend of fingerprint recognition in the entire smartphone industry...[Details]
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A gas sensor is a converter that converts the volume fraction of a gas into a corresponding electrical signal. The detector head conditions the gas sample through the gas sensor, usually including fil...[Details]
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Determine the pins: Set the multimeter to (×10 or ×1) and measure the resistance between any two pins of the thyristor. When it indicates a low resistance, the black test lead is connected to the con...[Details]
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The e-book "The State of 3D Printing in 2021" outlines the development history, working principles and future development prospects of 3D printing
Shanghai, China, September ...[Details]
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In recent times, the concept of the metaverse has continued to be popular, and many companies have begun to apply for metaverse-related trademarks. According to The Paper, the National Intellectual ...[Details]
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The schematic diagram is as follows, and part of the program is as follows. The microcontroller source program is as follows: #include reg51.h #include "DS18B20.h" #include "DS1302.h" #include ...[Details]
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Abstract: Switching power supply has a prominent electromagnetic interference problem due to its own working characteristics. Starting from the model of electromagnetic interference of switching po...[Details]
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In March 2015, Apple released the medical research platform ResearchKit after launching the smart home platform HomeKit and the health application platform HealthKit. Let's learn more about the relev...[Details]
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reference:
http://caiming1987612.blog.163.com/blog/static/118556676200961752714307/
http://blog.chinaunix.net/u1/34474/showart_401078.html
http://hi.baidu.com/%D3%F3%C4%E0%C4%EA%B8%E...[Details]
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VI. EXTI The external interrupt/event controller includes requests for generating up to 23 events/interrupts. Each interrupt line can be independently configured to select the type (respons...[Details]
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When a person puts his hand into the detection range of the hand dryer, the device starts working, and when the hand is removed, the device stops working. This function is usually achieved by using...[Details]
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Overview:
Servo
Motor
It includes a small DC motor; a set of variable speed gear sets; a feedback adjustable potentiometer; and an electronic control board. Among them, the high-speed...[Details]
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Transfer function table of second order RC filter
type
Transfer Function
Performance parameters
...[Details]
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Fault phenomenon and troubleshooting
Precautions
1. Please read the manual carefully before using the instrument and connect the wires according to the correct wiring method in the manual.
2. ...[Details]
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In the existing automobile market, many brands and models are widely recognized for their excellent safety performance. These brands and models have performed well in safety technology, crash test ...[Details]
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