The picture is displayed and then disappears immediately, that is, it flashes by. I don't know where the problem is. I'm a novice. The code is as follows: CClientDC pDCShow(this); CBitmap bitmap; bitm...
I initially followed the VC approach and was able to read the data correctly, but there were some warnings because I defined the arrays as char[]. After changing to TCHAR, the warnings disappeared, bu...
FN_X of f449 is the frequency adjustment range control of DCO. However, I added the DCO frequency to 8MHZ. Even though FN_2, FN_3, FN_4, and FN_8 are all set to 0, that is, according to TI's documents...
I want to use an I/O port of the STM32F1 chip to connect an infrared sensor with a distance of 3 meters. I am worried that the transmission distance is too long. How can I achieve this function? Thank...
[font=宋体][size=10pt]Making of Digital Display Experimental Power Supply[/size][/font][size=10pt][/size] [size=10pt][font=Times New Roman] [/font][/size] [align=left][align=left] [font=Times New Roman]...
[i=s]This post was last edited by sunboy25 on 2021-4-12 22:41[/i]I would like to ask the experts, are there any books that specifically talk about simplification of op amp transfer functions? For exam...
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]
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]
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]
Instrument stepper motor
The stepper motor is an open-loop control element that converts electrical pulse signals into angular displacement or linear displacement. In the case of non...[Details]
Vertical cavity surface emitting lasers (VCSELs) are gradually replacing traditional edge emitting lasers, especially in low bandwidth and short-distance communication systems where cost factors ar...[Details]
Investment in
the
medical device
industry has been on the rise in recent years. In the past two years, venture capital for medical devices has almost doubled, reaching $4 billion in 2007. Fr...[Details]
Recently, news came from the certification department that the photovoltaic grid-connected inverter of Samil New Energy Co., Ltd. (hereinafter referred to as "Samil New Energy") has once again obta...[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]
Since AC mains power may experience power outages, voltage sags and surges, continuous undervoltage and overvoltage, and frequency fluctuations during supply, these factors will affect the continuous ...[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]
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]
introduction
When it comes to the production of mobile phone lithium-ion batteries, the first thing that comes to mind is Japan's industrialized mechanical assembly line, NOKIO, MOTOLROLA's st...[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]
There are many types and styles of digital voltmeters in design and development. Traditional digital voltmeters have their own characteristics. They are suitable for manual measurement on site. Tra...[Details]