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Abstract: This paper introduces a design of a multi-node home security system with AT89S52 single-chip microcomputer as the control core, which transmits information through DTMF public telephone ...[Details]

1 Introduction to the principle of distributed constant current drive In the past incandescent lamp and energy-saving lamp markets, the mainstream lamp models with limited specifications formed by l...[Details]

In this era of energy conservation and carbon reduction, light-emitting diodes ( LEDs ) have become a widely used light source because of their excellent luminous efficiency and compact size. The ele...[Details]

　It was previously reported that the new Nokia 6.2/7.2 mobile phones may be unveiled at IFA 2019, and recently foreign media once again released a set of renderings of Nokia 7.2.       From the lea...[Details]

 　　I believe many users are already familiar with the use of current probes. Today we’ll look at how to improve its accuracy and sensitivity. 　　There are many types of current probes on the market....[Details]

introduction In the design of control terminal system, when the system requires low overall power consumption, C8051F series microcontrollers are the best choice. They have flexible clock hard...[Details]

Introduction 　　With the development of computers and embedded systems, IC cards have been integrated into people's daily lives and developed into several categories. Among them, the emergence of con...[Details]

At present, Japan has officially implemented material sanctions against South Korea. The export of three materials, namely fluoropolyimide, photoresist and high-purity hydrogen fluoride, to South Kor...[Details]

This article introduces two LED level indicator circuits made with LM324. LED level indicators are often used to indicate output levels in audio circuits and power amplifier circuits. LM324 is a qu...[Details]

Electric vehicle (EV) batteries produced by Mercedes-Benz are to get new life in stationary energy storage systems (ESS). Swedish startup BatteryLoop said yesterday it will use bat...[Details]

A test fixture for measuring the step response of a power distribution system. In the figure, a small current step is applied from the test fixture to the power system to see what the response is. Th...[Details]

On July 19, automotive technology company Veoneer and LiDAR developer Baraja signed an agreement to jointly industrialize Spectrum-Scan™ LiDAR technology for the next generation of L2+ to L4 autonomo...[Details]

Current measurement method There are two main methods of measuring current: one based on electromagnetism, associated with the early moving-coil (D'Arsonval) meters, and the other based on electricit...[Details]

Saudi Arabia’s sovereign wealth fund will partner with Foxconn Technology Group to produce electric vehicles, one of the industrial sectors Saudi Crown Prince Mohammed hopes to build to diversify the...[Details]

Definition: An industrial controller is a device used to control and monitor industrial processes. It can be any type of computer or microcontroller designed to perform specific tasks su...[Details]