I'm a beginner
Want to know how to make 8 digital tubes display different numbers at the same time
My microcontroller does not have a latch.
It's best to write a program and see
Thanks...
"Five programmers develop five modules. Each programmer has different efficiency in developing different modules. How to allocate them to ensure the highest efficiency? Please write a program." This i...
I'm working on a BSP and debugging. After loading filesys.exe successfully, HeapCreate(0, 0, 0) fails in LMeminit because it returns NULL when calling VirtualAlloc(0x4000000,192512,MEM_RESERVE,PAGE_RE...
Document link address:http://www.djyos.com/download/Dujiangyan Operating System Introduction - Application Promotion.pdfhttp://www.djyos.com/download/Dujiangyan Operating System Introduction - Kernel ...
This is the CIII starter board for DIY oscilloscopes. The FPGA chip is so hot that you can bake eggs, but it can download normally. I don't know if this is normal? In this case, I dare not use the boa...
I recently developed a project and needed some tools and modules. I was miserable trying to find them. I was also very uncertain, so I placed an order from one of the Taobao stores just for fun. The m...
Today, with the increasing integration of functions, mobile phones can also be used as portable media players (PMP), digital cameras, handheld computers (PDAs), and even global positioning systems ...[Details]
introduction
Throughout the history of automotive lighting, power has always played an important role. Initially, cars only needed headlights to see the road in the dark. Later, other light so...[Details]
Introduction
Power subsystems are becoming more and more integrated into the overall system. Power systems have moved from being separate "essential dangerous devices" to being monitorable...[Details]
A multi-point temperature control heating control system was designed using the SST89E564RC single-chip microcomputer and a new temperature measuring device. The heating system can be controlled in...[Details]
my country is a big country in agriculture, grain production and consumption. Grains are a necessary condition for our nation to survive and develop. The flour processing industry will exist forever w...[Details]
I've been studying dot matrix recently. It looks simple, but it takes a while to master it completely! The 8*8 dot matrix hardware circuit I'm making now is like this. The row is driven by 74HC138 + t...[Details]
This paper designs a 16x16LED Chinese character display bar based on single-chip dynamic scanning control, briefly analyzes the principle of Chinese character display, and studies how the LED displ...[Details]
1. Disadvantages of choosing too high a voltage level
Choosing too high a voltage level will result in too high an investment and a long payback period. As the voltage level increases, the...[Details]
With concerns about the growing energy crisis, motor efficiency has become an important and timely topic. This is because motors use 63% to 70% of the electricity produced in the United States and ...[Details]
Only a small number of LED manufacturers can produce high-quality LEDs. For applications that are only used for simple indication, low-quality LEDs are sufficient. However, high-quality LEDs must...[Details]
1. Introduction
With the increasing popularity of fully automatic washing machines, consumers have higher and higher requirements for their environmenta...[Details]
Currently, the commonly used solar cell technologies include monocrystalline silicon solar cells and polycrystalline silicon thin-film solar cells. Production process: Monocrystalline silicon solar...[Details]
Stepper motors, also called steppers, use the principles of electromagnetism to convert electrical energy into mechanical energy and have been used since the 1920s. With the increasing popularity o...[Details]
As a type of iron battery, lithium iron phosphate battery (hereinafter referred to as lithium iron battery) has always been widely concerned by industry friends (some people say that lithium iron b...[Details]
1 Causes of problems with electric vehicle batteries
1.1 Caused by the battery itself
Why do we say that? In the previous issue, we learned about the working princi...[Details]