[i=s]This post was last edited by Beifang on 2020-9-4 09:40[/i]1. Received the express delivery, Southchip power board, visited the website http://www.southchip.com/ , and saw the rich product line. B...
[i=s]This post was last edited by alan000345 on 2018-10-24 10:06[/i] Appearance of GoPro USB PD dual-port charger[align=center][/align] [align=left]The appearance after disassembly is as shown below. ...
[i=s]This post was last edited by tinnu on 2020-10-6 18:08[/i]1. XPT2046
The official configuration is a resistive screen. When the screen is taken apart, it is indeed XPT2046, which is a common resis...
I use Agilent's network analyzer E5061B to measure the phase-frequency curve of a series RLC network. Theoretically, the series RLC network should be between 90° and -90°, but now it exceeds -90° and ...
Job Description: 1. Development of video codec functions; 2. Development of Linux kernel and program for video codec CPU. Job Requirements: 1. Familiar with ARM+Linux embedded system and embedded vide...
The algorithm transplantation encryption chip is a patented product of Linkcore Security. Its main function is to embed the LKCOS intelligent operating system inside the chip . Users can transplant a ...
I encountered a problem when using STM8S003: In order to reduce the power consumption of MCU, the Schmitt trigger was disabled during initialization. It was found that IO- PD3 was always 0 as the inp...[Details]
1. Summary: One chip + 7 resistors and capacitors constitute the ultrasonic module. It uses the RCWL-9600 ranging chip. 2. Measurement operation: GPIO, UART, IIC to obtain data. Use GPIO, for oth...[Details]
According to the "Science and Technology Innovation Board Daily", on September 10, the official website of the Shanghai Securities Regulatory Bureau disclosed the summary of the guidance work for the...[Details]
According to Qichacha data, there are currently
255,000
"environmental monitoring"
related companies in China. 2020 is the peak period of registration in the past decade, with 72,000 compani...[Details]
Many netizens who are new to 51 microcontrollers have this question: What is AT89S51? Books and online tutorials all mention 8051, 89C51, etc. I have never heard of 89S51? ! Here, beginners need...[Details]
Trigger circuit with sawtooth wave as synchronization signal
Phase-controlled circuit refers to a thyristor controlled rectifier circuit, which controls the output voltage by controlling the siz...[Details]
Battery life is becoming one of the most critical factors in system performance and reliability, and the introduction of supercapacitors will help extend battery life in two major application areas. ...[Details]
Abstract: Combined with the promotion and application of domestic frequency conversion technology, the technical characteristics of several control methods of general frequency converters are expla...[Details]
Polarizer is one of the main raw materials of liquid crystal display (LCD), accounting for about 20% to 30% of its manufacturing cost. However, since the manufacturing technology of polarizer has b...[Details]
introduction
As we all know, the "Golden Card" project (i.e., electronic currency project) is one of the key projects in the information construction of my country's national economy. Co...[Details]
Electrocardiographs, electromyograms, and electroencephalograms measure the behavior of the heart, muscles, and brain, respectively, by measuring the electrical potential on the surface of living t...[Details]
The three major A-share indices closed down today, with the Shanghai Composite Index falling 1.99% to 3564.08 points; the Shenzhen Component Index fell 2.44% to 14870.66 points; and the ChiNext Index...[Details]
//According to experience, the following program is correct and can make the LED light on for 1s and off for 1s
#include avr/io.h
#include avr/interrupt.h
#define uchar unsigned char
#define uin...[Details]
Samsung announced that the Galaxy Note 10 series China launch conference will be held on August 21. The biggest highlight of this conference is the price of the Chinese version of the Galaxy Note 10 ...[Details]
introduction
Servo motors are commonly used in the field of industrial automation, with the characteristics of high precision, high response speed and high stability. As an important...[Details]