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Differential probe is a kind of measuring probe for oscilloscope and is the mainstream accessory of modern oscilloscope. Probes can be generally divided into two types: passive probes and active prob...[Details]
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The clock system is the core of the processor, so before learning all the peripherals of STM32, it is necessary to carefully study the clock system, which helps to have a deep understanding of STM32....[Details]
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Wavelet analysis is a rapidly developing new field in mathematics. It has both profound theoretical and extensive application significance.
The concept of wavelet transform was first proposed ...[Details]
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As PEI-Genesis continues to grow in the Asian market, its unique assembly and distribution business model is gaining more and more attention in the Asia-Pacific market. At the same time, internationa...[Details]
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The SFC is a graphical representation method that describes the process, function and characteristics of a sequential control system. It is mainly composed of steps, directed segments, transitions ...[Details]
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PLC programming algorithm (1)
There are only three quantities in PLC: switch quantity, analog quantity and pulse quantity. If you can figure out the relationship between the three, you can mas...[Details]
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The power supply design process is an extremely difficult task, from understanding complex circuits to seeking help from chip distributors, nothing is easy. This article will tell you how to use ex...[Details]
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#include #define uchar unsigned char #define uint unsigned int #define DQ RC1 #define DQ_HIGH（） TRISC1=1 #define DQ_LOW（） TRISC1=0;DQ=0 __CONFIG（0x3B31）; const uchar table［］={0x3f，0x06，0x5b，0x4f，0x66...[Details]
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Abstract: Compared with the traditional development method, the development with real-time operating system is a more efficient way. Now take the road traffic light control system as an example. Th...[Details]
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Avnet Inc., a technology distributor, announced today that its Board of Directors has appointed seasoned veteran Phil Gallagher as Chief Executive Officer, effective immediately. Gallagher has served...[Details]
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Intersil's ISL8201M is a variable output step-down power supply with 20V 10A output current. It is a high-performance PWM controller with a switching frequency of 600kHz. It integrates power MOSFET...[Details]
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1 Introduction
Last year, the early symptoms of SARS that was prevalent in some parts of China were high fevers above 38oC (except for a few chronic patients). Infrared thermometers can provide a...[Details]
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Recently, Professor Wu Wei's research group at the School of Materials Science and Engineering of East China University of Science and Technology successfully prepared a new type of hybrid thermal co...[Details]
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program :
/**
* Read IO, use buttons to control lights.
*/
#include
#include
// 10 LEDs
sbit P10 = P1^0;
sbit P11 = P1^1;
sbit P12 = P1^2;
sbit P13 = P1^3;
sbit P14 = P1^4;
...[Details]
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The dual transistor series linear voltage-stabilized power supply circuit converts 220V industrial frequency AC power into 18V through a transformer, and then rectifies it through VD1~VD4, and filter...[Details]
Discrete Device
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