As shown
The purpose of the circuit is to use the triangle wave input at the same phase end and the variable DC input at the inverting end to generate a PWM wave with adjustable duty cycle through the...
I'm really sorry, I received the Qinheng development board sent by the forum a long time ago, probably in June? Because the company was doing a network security review in June and July (this year is a...
Intelligent home temperature and humidity control system based on RT-THREAD systemProject SourceThe winter in Northeast China is cold and dry. Children will feel uncomfortable when studying or sleepin...
Refer to the Weather Station example to make a simple environment detection program, as shown below: This is done by using controls to monitor temperature, humidity, air quality, atmospheric pressure ...
C language programming on 80C51 Features of C51:
(1) After students who have learned C language have a basic understanding of single-chip microcomputers, they can start to try to write one or tw...[Details]
In Egypt's desert regions, arable land is very scarce and water is almost impossible to find, so the development of Egyptian agriculture is difficult. However, solar energy, which is extremely abun...[Details]
As we all know, CPU chips and operating systems are the most basic core technologies in the computer field, and China is controlled by others in this regard, which is often called "lack of core and s...[Details]
Recently, in the laboratory of the China Academy of Information and Communications Technology in Beijing, ZTE's V2X-OBU (Vehicle to Everything Unit, V2X means Vehicle to Everything, which means tha...[Details]
0 Introduction
Energy shortage and environmental pollution are becoming increasingly serious in the world today, forcing people to find and use new alternative energy sources. With the improvement ...[Details]
The Honor 50 series launch conference will be held at 19:30 on June 16, when several new products including Honor 50SE, Honor X20SE, and Honor Play 20 will be launched. Foreign media 91mobiles...[Details]
Switching
Power Supply
X-
Capacitor
Design Guidelines:
Refer to AD1118 X capacitor placement principle:
1. Before common mode choke: 105/275VAC (MKP/X2)
2. After co...[Details]
Strategy Analytics' latest research report points out that global smartphone shipments in Q4 2019 were 375 million, which was stable compared with the same period last year. Apple ranked first with a...[Details]
Specific implementation functions Specific functions: (1) The host resets the game and displays the scores of the eight contestants in sequence. The host can press the start button only after the s...[Details]
Require: 1. Digital clock: hours and minutes. Hours are displayed in base 24 and minutes are displayed in base 60. 2. Display adopts dynamic digital tube display mode 3. Dynamic time display si...[Details]
The relationship between cars and computers is becoming increasingly intimate and complex. Specialized software allows every part of a vehicle to be connected, from brakes to steering wheels to door...[Details]
Against the backdrop of booming production and sales of new energy vehicles, listed companies in the industry chain have successively released news related to investment and expansion since August. ...[Details]
The following is what I learned about the stack when studying ARM instructions: 1. Register R13 is often used as a stack pointer in ARM instructions 2. For the R13 register, it corresponds to 6 dif...[Details]
According to market data, my country's Internet of Things market size exceeded one trillion yuan for the first time in 2018, with an annual compound growth rate of over 25%; the global Internet of Th...[Details]
Both soft starter and step-down starter are devices used to start motors. They each have their own advantages and disadvantages and are suitable for different application scenarios. The following i...[Details]
Analog electronics
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