On December 20, the U.S. Department of Justice released details of a large-scale theft case. A Japanese employee of a Sony subsidiary stole $154 million (about 980 million yuan) of public funds and co...
Are more bits better in a microcontroller? That's like asking: Are more cylinders better in an internal combustion engine? Peripherals and other features are important, not just the bits (or cylinders...
Seeing that the EVAL-M3-TS6-665PN development board can work best with the EVAL-M3-102T control board, after receiving the EVAL-M3-TS6-665PN development board, I gritted my teeth and spent more than 6...
Does anyone know any information about CPAFC carrier synchronization, or a video with a detailed explanation? It would be best if there is MATLAB simulation code. I would appreciate your help. Thank y...
[size=5] PWM is a control method that can be applied to many power supply topologies. Power supplies of any topology have a wide range of uses and can be said to be everywhere; the application range o...
Goodbye 2019, hello 2020! In 2019, I found my own direction of struggle. Because of this direction of struggle, I got to know the Electronic Engineering Welfare Club. In the Electronic Engineering Wel...
background knowledge:
The basic knowledge of serial port has been discussed in the previous article. Here we will focus on how to use printf function under MDK4.22, so that you can easily print debug...[Details]
1. Introduction to OLED Organic Light-Emitting Diode (OLED), also known as organic laser display or organic light-emitting semiconductor, was discovered by Chinese-American professor Ching W. Tang in...[Details]
Stepper motors have high precision, small inertia, and no step error accumulation without losing steps. They are particularly suitable for digital control positioning systems. The traditional subdi...[Details]
The "power rationing" in the autumn and winter of 2021 caught people off guard. While recalling the long-lost memory of lighting candles during power outages, people began to re-examine electricity...[Details]
From 00:00 on April 8, 2020, Wuhan City lifted the control measures on channels leaving Wuhan and Hubei. According to official news from Wuhan XMC, during the more than 70-day battle against the ep...[Details]
1.What are the hazards of dust? What is dust? Total suspended particulate matter (TSP) - particles in ambient air with an aerodynamic equivalent diameter of 100 μm or less. • PM10—particles in ...[Details]
The MP34DT01 of ST is an ultra-small, low-power, omnidirectional digital MEMS microphone with capacitive sensing elements and IC interface, single-power operation, acoustic overload point 120 dBSPL...[Details]
Asynchronous motors are also called induction motors, which means that the motor stator is energized to achieve energy transfer and conversion through induction. That is, a normally operating async...[Details]
I. Overview
The brushless DC motor consists of a motor body and a driver, and is a typical mechatronics product. The stator winding of the motor is mostly made into a three-phase symmetrical star c...[Details]
1 Introduction
Light is an important carrier for carrying and transmitting information. Photoelectric signals, as an important carrier of information, have the characteristics of large information ...[Details]
This paper introduces a design scheme of a frequency meter, and applies this instrument to the measurement of the dome temperature of the 2.4m telescope in Lijiang, Yunnan Astronomical Observatory....[Details]
Giant hogweed grows abundantly in Russia and can be used as an electrode material.
Scientists from NUST MISIS have studied the possibility of using fibrous matter from plant...[Details]
As of the close of August 21, the three major A-share indices closed higher today, with the Shanghai Composite Index closing at 3380.68 points, up 0.50%; the Shenzhen Component Index closed at 13478....[Details]
Since 2018, the chip industry has been hot, and the securities market has also given the green light to integrated circuit companies. In the past two years, numerous fabless listed companies have e...[Details]
1 Introduction
At present, most large-scale LED display systems at home and abroad are basically composed of an LED control board and several LED unit boards connected in series.
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