A few questions. 1: I received the switch information of two sensors from the other end through the serial port, which are DOOROPEN & DOORCLOSE, DOORFREE & DOORBLOCK. The problem is that these informa...
I wrote a program that does not use an operating system. After the image information is stored in the buffer, it can only display a general image. I don't know why? My screen is 320*240 U8 ScreenBitma...
Since some infrared devices purchased by the company only support original infrared, I would like to ask whether the PPC mobile phones of Duopuda Company still support original infrared communication....
The circuit is shown in the figure. The mains power is stepped down by C5, R7, R8, rectified by VD7~VDl0 and stabilized by VD11 to provide the circuit with working voltage. When the electric iron is p...
WildFire FreeRTOS Kernel Implementation and Application Development Practical Guide : https://training.eeworld.com.cn/course/5356The first part is: Teach you to write FreeRTOS kernel from 0 to 1. This...
I want to use 51 to make a timer setting with 5 keys 1 set 2 change 3 number plus 4 number minus 5 RESET Use digital tube to display time first set the timer time to start counting when the set time i...
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]
Microcontrollers (MCUs), which are widely used in automotive electronics, are rapidly facing time and cost pressures. The main advantage of using MCUs has always been to create high-level system in...[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]
introduction
In the discharge process of tokamak plasma physics, the study of rupture and sawtooth is of great significance. Rupture and sawtooth exist in most tokamaks. Rupture is a notew...[Details]
No matter which processor you are learning, the first thing you need to understand is the registers and working mode of the processor.
ARM has 37 registers, including 31 general registers and ...[Details]
The Mobile Industry Processor Interface (MIPI) Alliance is an organization responsible for promoting the standardization of software and hardware in mobile devices. It has released the D-PHY specif...[Details]
With the continuous improvement of the requirements of intelligent building security systems and the continuous improvement of people's safety awareness, indoor anti-theft has gradually attracted peop...[Details]
1 Introduction
Ultrasonic waves have strong directivity, slow energy consumption, and can propagate over long distances in a medium, so they are used for distance measurement. Ultrasonic detec...[Details]
General LED lighting has a current limiting resistor in the driving circuit, and the power consumed by the resistor has nothing to do with the LED light emission. In order to improve efficiency, a...[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]
hint:
The number of speakers and their spacing limit the sound field of a portable stereo system.
Spatial audio attempts to artificially recreate the experience of listening to sounds i...[Details]
LED technology has made rapid progress, and improvements in chip design and materials have promoted the development of brighter and more durable light sources, and the scope of light source applica...[Details]
1 Basic Features
In computer control systems and various intelligent instruments and meters composed of single-chip microcomputers (or microprocessors), various external analog signals must be ...[Details]
Introduction
As the country increases its efforts to control the atmospheric environment, motorcycle emission regulations will become stricter year by year, and motorcycles that do not meet the...[Details]
Embedded System
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