My machine cannot be woken up during the suspend==>resume process. The serial port information is: BSPPowerOn PCF: HW_PowerUp Backlight SET OK! :: BACKLIGHT ON ! [HSMMC0] Power Up the HSMMC Host Contr...
First, let’s take a look at the battery failure modes. Why do batteries fail? 1. Battery aging – internal resistance and capacity[align=center][/align] [align=left] 2. Battery cell related issues[/ali...
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**uCGUIBuilder**
**Version:4.0.0.0**
**2012 / 04**
**CpoyRight to: wyl**
**Email:ucguibuilder@163.com**
**This text was Created by...
[i=s]This post was last edited by wugx on 2016-10-7 21:02[/i] A batch of printer parts arrived from July to October. I installed them these two days and found that the design of this printer is simple...
[p=24, null, left][color=rgb(73, 73, 73)][font=微软雅黑]Today I will write about two circuit design errors. The first one is caused by insufficient current gain. This circuit is based on the design of oth...
When I was doing 485 communication between PC and 51 MCU, I used three wires to connect, A, B and GND, and used 232-485 converter on PC side, and ran Serial Port Wizard. During communication, MCU firs...
With the promotion of the construction of intelligent communities in the country, anti-theft systems have become essential equipment for intelligent communities. Especially in recent years, the urg...[Details]
1. Introduction
Since the 1980s, with the continuous development of automotive electronic technology, there are more and more electronic control units in automobiles, such as electronic fuel i...[Details]
Remote keyless entry (RKE) systems have become popular with users, with more than 80% of new cars in North America and more than 70% in Europe equipped with RKE systems. In addition to the obvious ...[Details]
As cellular phones become more advanced, the power consumption of the system during operation and the power consumption during standby are also increasing. Therefore, the power management design of...[Details]
We know that the inverter consists of two parts: the main circuit and the control circuit. Due to the nonlinearity of the main circuit (switching action), the inverter itself is a source of harmoni...[Details]
Motors are important products that convert electrical energy into mechanical energy to achieve automation, and they are widely used in industrial control, medical electronics, white a...[Details]
0 Introduction
High-precision current source can provide high-precision current supply for precision instruments, and is suitable for automatic measurement tasks of various resistors in semico...[Details]
Introduction
In industrial control, speed measurement is often required. Generally, a contact tachometer is used. This tachometer must be placed against the center of the shaft to measure. It...[Details]
0 Introduction
There are many types of sensors, and the working principles, measurement targets and measurement environments of different types of sensors vary greatly. The corresponding detection s...[Details]
The demand for improved healthcare environments is endless, so medical imaging equipment with higher resolution is needed to better observe the human body. High resolution brings problems with sign...[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]
Battery clamps, commonly known as battery connectors, come in two sizes depending on the thickness of the battery terminals. One is the battery clamp used on thick terminals, with a positive termin...[Details]
Electrostatic coupling and interference occur when a charged object is close to the input of the circuit being measured. At low impedance, the effects of interference are not noticeable because th...[Details]
Nowadays, more and more people have digital cameras. The convenience and speed of digital cameras have gradually replaced film cameras and become the main tool for people's daily photography. The n...[Details]
Direct digital frequency synthesis (DDS) has fast frequency switching and modulation capabilities and is widely used. However, when low power consumption and low cost are the main considerations, D...[Details]
Embedded System
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