[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...
All electronic design engineers and scientists have performed electrical signal analysis, or signal analysis for short. Through this basic measurement, they can gain insight into signal details and...[Details]
In recent years, the market for mobile/portable devices such as smartphones and laptops has continued to grow rapidly. While these products continue to integrate more new features to enhance the ...[Details]
As LEDs continue to improve in almost every aspect of performance and cost, LED lighting is being used in an increasingly wide range of applications, among which LED street lights are a focus of in...[Details]
1. Introduction
Light control circuit plays a vital role in urban street lamps or corridor lighting. With light control circuit, the lights can be automatically turned on and off according to ...[Details]
Battery life is critical for portable applications. For applications such as smoke detectors, security devices, and thermostats, factory-installed batteries need to last for more than 10 years. The...[Details]
1. Introduction
At present, most lighting equipment still uses traditional energy for lighting. Making full use of solar energy as the energy supply for lighting equipment is of great si...[Details]
Overview:
This paper introduces a method of connecting a CAN-bus network with Ethernet to form a medium-sized remote monitoring/data transmission network.
CAN (Controller Area Network) is ...[Details]
1 Introduction
PROFIBUS is an international, open, and manufacturer-independent fieldbus standard. It is widely used in manufacturing automation, process industry automation, and automatio...[Details]
Many battery-powered systems require a visual indicator to show when the battery needs to be replaced. LEDs are commonly used for this purpose, but they consume at least 10mA of current. This con...[Details]
Problems such as the depletion of natural resources, air pollution, traffic congestion, and rising fossil fuel prices have forced societies and individuals to seek alternative means of transportati...[Details]
Motors, especially those with brushes, generate a lot of noise. This noise must be dealt with if the appliance is to meet the requirements of EMC standards. The means to solve EMC are nothing more ...[Details]
D5026A is a driver IC designed by Shanghai Debei Electronics for energy-saving LED display screens. Its design concept is energy-saving and compatible with existing solutions, that is, it can be ...[Details]
0 Introduction
Under normal circumstances, the three-phase power in the power system is symmetrical, and they meet certain amplitude and phase conditions; but when the load changes, the syst...[Details]
1 Introduction
Ultrasound refers to elastic vibration with a frequency higher than the audible frequency limit (i.e., in the frequency band above 20 kHz). The propagation process of this vib...[Details]
0 Introduction
Ultrasonic waves
are mechanical waves with a frequency of more than 20KHz, and the propagation speed in the air is about 340 m/s (at 20°C). Ultrasonic waves can be gene...[Details]
Power technology
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