I received a mobile phone holder that looks like an ashtray before, but I was busy at the time and forgot to post a photo. Later, I saw other people posting photos of it, so I won’t post another one. ...
Is the so-called 433 two-way communication module because the receiving module and the transmitting module are put together, or is there another way to achieve it?...
The board made with this circuit outputs a little more than 13V when U+>U-.
I forgot to draw the pull-up resistor. Another problem is that when the negative terminal is connected to a positive or nega...
I would like to ask: In the 51 single-chip microcomputer, can a floating point number and an unsigned character type number perform arithmetic operations? I tried it in Keil C51, and the compilation p...
Here is a picture firstThe positions of TIM2 and TIM3 marked by red boxes in the picture are reversedThe actual positions should be PCKEN16->TIM3; PCKEN15->TIM2: Data sheet 15441 rev3 (page 15) Chapte...
A New Design Method for DC Drive Circuit of LED Lighting[ Print ][ Return ]This article describes a new method for driving LEDs in DC lighting systems that provides 95% efficiency, longer life, and gr...
Emergency hand-held lamps powered by 6V maintenance-free batteries are widely used in rural areas. The charger used is a transformer step-down and single diode half-wave rectifier, and the charging...[Details]
This article discusses how to wake up a touch-sensitive device such as a tablet without touching the device, using basic gesture recognition and novel proximity sensors. The article discusses the p...[Details]
0. Introduction
In daily life, we often see some special-purpose vehicles. When these vehicles pass through intersections, they often obtain the right of way at intersections by temporarily op...[Details]
In recent years, the market for mobile/portable devices such as smartphones and laptops has continued to grow rapidly. While these products continue to integrate more new features to enhance the ...[Details]
1. Introduction
Light control circuit plays a vital role in urban street lamps or corridor lighting. With light control circuit, the lights can be automatically turned on and off according to ...[Details]
5. Identifiers and keywords of C language
A complete PIC microcontroller C language program usually consists of six parts: include files (i.e. header files 1, variable definitions, variable de...[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]
1. Introduction to CIF Board
Fieldbus integration based on PC system
Whether it is a master or a slave, fieldbus has won unanimous praise in the field of PC-based automation. For more...[Details]
In recent years, with the rapid development of the information industry, dot matrix LED display screens have been widely used in various advertising and information display systems such as the fina...[Details]
Continuity test
A variety of devices need to be checked for continuity, including cable assemblies, printed circuit boards, and connectors to ensure that these components have the expected contin...[Details]
Today, the value of electronic components in cars accounts for 15-20% of the total vehicle. In the future, this proportion may be as high as 30-40% as more safety electronics, fuel consumption and ...[Details]
Abstract: In recent years, with the establishment and grid-connected power generation of a large number of solar photovoltaic power stations at home and abroad, photovoltaic grid-connected inverter...[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]
Traditional
virtual instruments
consist of a data acquisition
board
based on PCI bus and
corresponding software. However, with
the rapid development of
computer
network techno...[Details]
With the continuous advancement of various technologies in the field of measurement and control, the baseband subsystem of general measurement and control equipment has entered the fourth generation o...[Details]
Talking
京公网安备 11010802033920号
EEWORLD
