1. Experimental tasks As shown in the previous test schematic, switch SP1 is connected to the P3.7/RD pin, and four LEDs are connected to the P1 port of the AT89S51 microcontroller. When the power is ...
1.Description Resource Path Location Type
#10099-D program will not fit into available memory. placement with alignment/blocking fails for section ".cinit" size 0x81 page 0. Available memory ranges: P...
Sohu Wireless: A pioneer in mobile entertainmentBest performance: Sohu Wireless leveraged the resources and popularity of the Sohu portal website to launch the mobile portal "Mobile Sohu", creating a ...
I use 51 to make an electronic perpetual calendar. I use a lot of digital tubes. I don't want to use LCD. How can I assign the data read from DS1302 to 74LS47 (with many digital tubes)?...
【Today · Frost Descent】--- "Frost Descent is one of the 24 solar terms. It means that the weather is getting colder and the first frost appears. It is the last solar term in autumn and also means that...
I want to ask, I debugged SDRAM according to the program of privileged classmate, and many F7 and FF appeared when the serial port received data, can you help? ? ?...
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]
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]
With the rapid development of intelligent control technology, computers and information technology, the trend of information appliances IA (Information Application), computers and communications integ...[Details]
The rectified DC voltage is then converted back to AC using power electronics such as insulated gate bipolar transistors.
The output voltage is switched on and off at a high frequency, control...[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]
Every time I go home and walk up the stairs, I am always scared. The corridor lights are often broken, and no one changes the bulbs, or they are not smart enough and need to be operated manually. E...[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]
Leakage current is generated by parasitic resistance paths between the measurement circuit and a nearby voltage source. This current can significantly reduce the accuracy of low current measurement...[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]
The capacity of a battery depends on the amount of charge and discharge, in addition to some factors of the battery itself. Obviously, if the charge and discharge of the battery can be recorded all...[Details]
As a new type of centralized and decentralized elevator control system, serial communication has been widely used in China. Compared with the previous centralized and unified control system, each s...[Details]
0 Introduction
This paper designs a dot matrix LED text display screen that is easy to update, expandable, and low-cost. The ways to reduce costs are: ① Use the Bluetooth data transmission...[Details]
Reliability and real-time performance are the basic requirements for control systems. Initially, motor control used analog circuits with discrete components. With the advancement of electronic tech...[Details]