[code] Declare Function sndPlaySound Lib "Coredll.lib" (ByVal SoundName As String, ByVal Flags As Byte) As Boolean Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Ha...
On March 14, 2017, at the Embedded World Conference, we will discuss programming with MicroPython.Program introduction: [url=http://www.embedded-world.eu/program.html]http://www.embedded-world.eu/prog...
[align=center][color=#000][font=宋体][size=16px][size=18pt][b]Measures for the Administration of Amateur Radio Stations[/b][/size][/size][/font][/color][/align][align=center][color=#000][font=宋体][size=1...
[p=26, null, left][size=14px][color=#000000][backcolor=white]1. The voltages added to the two input terminals of the in-phase amplifier circuit are nearly equal[/backcolor][/color][/size][/p][p=26, nu...
[i=s]This post was last edited by 15651621702 on 2015-10-15 17:07[/i] [font=宋体]Problem description: I am doing another DIY project and hope to use the transparent transmission of the zigbee module as ...
I wrote a very simple UART program, which sends data to mega16 through the serial port in the data frame format of "0xBB eight-bit data 0xEE" (the data is between 0-9), and then displays it through th...
Power management solutions for today's portable application processors are becoming increasingly integrated. Total power consumption, standby and sleep current consumption affect battery size, bill...[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]
Since the No. 4 blast furnace of Handan Iron and Steel was put into operation in 1993, its external equipment has been seriously aged, and the original PLC control system TDC3000 of the hot blast furn...[Details]
At very low temperatures, certain metals and alloys lose their resistance to electric
current
and become
superconductors
. Two parameters that are often measured are the transition ...[Details]
According to the Industrial Technology Research Institute of Taiwan, due to factors such as the oil crisis and global warming, the issues of energy conservation and environmental protection have at...[Details]
To understand how and why OLED power supply affects display image quality, you must first understand OLED display technology and power supply requirements. This article will explain the latest OLED...[Details]
introduction
Incandescent bulbs can emit a variety of light, but in specific applications, only green, red, and yellow light are usually needed - such as traffic lights. If an incand...[Details]
System Overview
The system consists of a signal preprocessing circuit, a single-chip computer AT89C2051, a systematic LED display module, a serial port data storage circuit and system software...[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]
1 What is an LED floodlight?
LED downlights are also called spotlights, projection lamps, and spotlights. They are mainly used for architectural decorative lighting and commercial space lighti...[Details]
A few days ago, I bought an 8LED flashlight in the market (the flashlight uses No. 5 batteries). Because I had other things to do, I didn't pay attention when purchasing it. When I got home and use...[Details]
One in five car failures are caused by batteries, a problem that will become more serious in the coming years as electric-by-wire, start/stop engine management and hybrid (electric/gas) vehicles be...[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]
DCDC means DC to DC (conversion of different DC power values). Anything that meets this definition can be called a DCDC converter. Specifically, it means converting the input DC into AC through a s...[Details]
This paper describes the design method of electronic multifunctional watt-hour meter, the key technology of hardware design and the software design process. Taking NEC's μPD78F0338 microcontroller ...[Details]