October is Open Hardware Month!About OSHWAThe Open Source Hardware Association (OSHWA) seeks to foster technical knowledge and encourage research that is accessible, collaborative, and respectful of u...
1. Introduction At present, the outdoor unit, access control video intercom and access control of mature smart home systems almost all use analog signals. When installing, a dedicated network needs to...
From 2006 to 2021, 15 years have passed in the blink of an eye. From the beginning of our establishment to being recognized by many electronic engineers, our pursuit and goal have never changed: to ex...
[i=s]This post was last edited by paulhyde on 2014-9-15 09:47[/i]12
[i=s]This post was last edited by paulhyde on 2014-9-15 09:47[/i] Isn't this the question from the 2010 Fujian Provincial Competitio...
Introduction to AM335x LED WALL applications : https://training.eeworld.com.cn/course/271LED Wall is widely used in sports stadiums, cities and public squares, transportation, corporate image promotio...
[p=30, 2, left][color=#252525][color=#444444][font=微软雅黑][size=4]Electromagnetic compatibility design usually requires the use of various control technologies. Generally speaking, the closer to the EMI...
Assume that data is read from 8-bit AD (if it is a higher-bit AD, the data type can be defined as int), the subroutine is get_ad();
1. Limited secondary filtering
/* A value can be adjust...[Details]
1. Introduction
RFID (radio frequency identification) is a non-contact automatic identification technology that emerged in the 1990s. It uses the characteristics of radio frequency signal prop...[Details]
Floating-point digital signal processing has become a constant requirement for precision technology, often in applications requiring high accuracy in areas such as aviation, industrial machinery, a...[Details]
1 Introduction
Solar street lights are mainly composed of four parts: solar photovoltaic cell components, batteries, charge and discharge controllers, and lighting fixtures. The bo...[Details]
introduction
For the voltage regulator modules (VRMs) that power the latest computer central processing units (CPUs), power supply designers have historically used multiphase interleaved b...[Details]
Electronic systems are located at different points on the automotive power bus and therefore often need to operate under very stringent power requirements. These include load dump, cold crank, very lo...[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]
Images in science fiction movies often break through the limits of reality, such as in the movie "Minority Report." Tom Cruise uses a multi-touch screen to browse information. Capacitive sensing te...[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
PROFIBUS is an international, open, and manufacturer-independent fieldbus standard. It is widely used in manufacturing automation, process industry automation, and automatio...[Details]
1. Introduction
Testing the temperature of steel billets before rolling is an important measure to ensure the quality of steel. Traditional manual testing is difficult to ensure product qu...[Details]
Xiaomi, a well-known Internet phone in mainland China, won a million-unit order contract from China Unicom on November 20 last year, which made Xiaomi famous in mainland China. In April this year...[Details]
Overview
In spectral measurement, photomultiplier tubes (PMT) and charge-coupled devices (CCD) are often used as photoelectric converters. PMT is used in slow-changing, high-precision spectral...[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]
The serial interface real-time clock chip DS1302 launched by Dallas Company in the United States can trickle charge the backup battery of the clock chip. Due to the main features of the chip such a...[Details]
DIY/Open Source Hardware
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