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Capacitor C1 and resistor R1 are used in parallel, which is a typical capacitor step-down circuit. After the AC power is stepped down, rectified by VD1~VD4, and filtered, it is provided to the voltag...[Details]
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The P40 series is about to be released, and now the much-anticipated nova series has surfaced. On March 18, Huawei's new phones with model numbers JER-AN10 and JEF-AN00 passed the 3C certific...[Details]
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1. Main Application It is used to detect the point-to-point resistance of anti-static work clothes, directly display the resistance value, with high accuracy, fast response, good stability and conven...[Details]
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How to use an analog oscilloscope
The principle of waveform display and waveform stability of analog oscilloscopes
Principle of waveform display:
When the measured signa...[Details]
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The source program of the sending microcontroller is as follows: #include "ir_send.h" /*------------Initialize IO------------*/ void ir_init(void) { P2M0 = 0x80; //P2.7 strong push-pull ...[Details]
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Abstract: This paper mainly proposes a solution to the two hot issues of mobile phone theft and home security. This solution designs a managed anti-theft and dynamic behavior tracking detection s...[Details]
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;=========================================== ; NAME: OPTION.A ; DESC: Configuration options for .S files ; HISTORY: ; 02.28.2002: ver 0.0 ; 03.11.2003: ver 0.0 attached for 2440. ; jan E, 2004: ve...[Details]
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Generally speaking, the speed of the shaking test will not affect the measurement of fixed high-value resistance as long as the speed is uniform. Because from the perspective of the measurement mecha...[Details]
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New 3D bioprinter. Image source: University of Melbourne, Australia
Scientists at the University of Melbourne in Australia have developed a new high-speed 3D printer. This advanc...[Details]
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1 Introduction
ZigBee technology is a short-range, low-complexity, low-power, low-data-rate, low-cost two-way wireless communication technology. It is mainly applicable to the fields of automa...[Details]
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Spanish engineering services provider Sacyr Industry is building a heating system based on photovoltaics, ground-source heat pumps and vanadium redox flow batteries at Madrid’s Moncloa ...[Details]
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At present, the main failure form of electronic equipment is thermal failure. According to statistics, 55% of electronic equipment failures are caused by temperatures exceeding the specified value. As...[Details]
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Quantum chips have extremely high requirements for the storage environment. How can the delicate quantum chips be kept fresh for a long time? On March 15, the reporter learned from the Anhui Quantu...[Details]
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Matrix keyboard Schematic Code The pressed button will show which button is pressed on the LCD. mian function #include REGX52.H #include "Delay.h" //Include Delay header file #include "LCD160...[Details]
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1. It is more convenient to use macro definition for single IO pin operation
(1) For basic operation of single IO pin, the following example uses macro definition
#define DS18B20_BIT ...[Details]