[align=left][font=微软雅黑][size=3]1. If there is no plug-in component connected to the two ends of the SMD component, a test point must be added. The diameter of the test point should be between 1.0mm an...
Because of poor post editing skills, some code is missing in the article. This article is a supplement to [url=https://bbs.eeworld.com.cn/forum.php?mod=viewthread&tid=427784]BB Black Basics: Kernel Co...
[i=s]This post was last edited by elvike on 2017-3-1 10:26[/i] The oscilloscope that has been lying in the corner, gathering dust, is an eyesore, so I'm selling it. [url=https://item.taobao.com/item.h...
I am using MSP430G2121 and use P1.0 as the interrupt input detection port. P1IES can only be set to rising edge or falling edge. How can I set it to dual edge trigger?...
I plan to connect Xiaomi's Bluetooth temperature and humidity monitor, as the title suggests, and basically did not change anything. I just ran it and found that there were only 2 items in the adverti...
To succeed in entrepreneurship, you need management, technology, sales, public relations, etc. The only thing you don’t need is money. Or money is actually harmful. For innovative businesses, entrep...
Emergency hand-held lamps powered by 6V maintenance-free batteries are widely used in rural areas. The charger used is a transformer step-down and single diode half-wave rectifier, and the charging...[Details]
This program is written to simulate the serial port hardware mechanism. When used, a timed interrupt can be set with a time interval of 1/4 baud rate. The receiving function is called once for ea...[Details]
Today, with the increasing integration of functions, mobile phones can also be used as portable media players (PMP), digital cameras, handheld computers (PDAs), and even global positioning systems ...[Details]
introduction
Throughout the history of automotive lighting, power has always played an important role. Initially, cars only needed headlights to see the road in the dark. Later, other light so...[Details]
DSP (digital signal processor) is used more and more frequently in today's engineering applications. There are three main reasons for this: first, it has powerful computing power and is capable of ...[Details]
Aromatic gases are widely present in food, medicine, cosmetics and various daily chemical products, such as snacks, liquor, spices, Chinese herbal medicines, plasters, perfumes, soaps, shampoos, et...[Details]
1. Background:
The instrument system parameter detection and control of the chemical production workshop of Tangshan Coal Gas Coking Plant are all analog instruments, some of which are eve...[Details]
1. Introduction to CIF Board
Fieldbus integration based on PC system
Whether it is a master or a slave, fieldbus has won unanimous praise in the field of PC-based automation. For more...[Details]
I've been studying dot matrix recently. It looks simple, but it takes a while to master it completely! The 8*8 dot matrix hardware circuit I'm making now is like this. The row is driven by 74HC138 + t...[Details]
Continuity test
A variety of devices need to be checked for continuity, including cable assemblies, printed circuit boards, and connectors to ensure that these components have the expected contin...[Details]
Abstract: Aiming at the needs of coal-rock acoustic emission signal monitoring system, a data acquisition circuit with 24-bit resolution and 16-channel synchronous data acquisition function is desi...[Details]
Temperature compensated quartz crystal oscillator (TCXO) is widely used as a high-precision frequency source in communication systems, radar navigation systems, precision measurement and control sy...[Details]
1 Introduction to LED
With the development of science and technology, people have higher and higher requirements on automobile light sources. LED (Light Emitting Diode) has gradually attracted...[Details]
This article discusses the six design steps of LED lighting system design in detail: (1) determine the lighting requirements; (2) determine the design goals and estimate the optics; (3) the efficie...[Details]
The emergence and development of street lamps are inseparable from the prosperity and progress of cities, which makes street lamps useful. Conversely, street lamps also make the night of the city n...[Details]