I'd like to ask, when I copy some articles from a public account to Word, the following red box symbol always appears, and the paragraphs are all displayed in the center. It's too troublesome to delet...
As shown in the figure, the supply voltage of the op amp LM324 is +12V and -5V
【1】Is this circuit a second-order RC low-pass filter circuit? If so, which capacitor C2 and which resistor form the secon...
As shown in the circuit below, after pressing TEST, how do T3, T2, and T1 work?
How does the IC2 voltage regulator chip power the MCU? What happens if you release the TEST?
Please help me analyze what...
SH32F205 Main FeaturesCore: 32-bit ARM Cortex-M3120MHz operating frequency, core code can be loaded into C-RAM and run at full speed
Provides Pre-fetch instruction pre-fetching, I-Catch jump instructi...
LED unit boards all have HUB75E interfaces, so they are not compatible with different brands? I want to repair a P3 display screen and I want to buy a few P3 full-color unit boards as spares. The inte...
When using STM8S003, due to insufficient pins, PB4 and PB5 were used as ordinary IO ports. As a result, no matter how the program was adjusted, a high level could not be output. I searched a lot of...[Details]
The MDO3012 mixed domain oscilloscope integrates six instruments, including spectrum analyzers, function generators, and more, allowing you to complete the task of capturing analog signals, digital s...[Details]
Preface In the previous article "How the program runs in the CPU (I)", the author described how each instruction and each data in the program runs in the CPU. In this article, the author will analyze...[Details]
First, let's review the steps for writing a bare metal program: 1. Use ADS1.2 to create a project. In the Language setting of DebugRel setting, select ARM920T because the CPU used is S3C2440. The s...[Details]
According to The Paper, the 2019 International Chip Conference (Chips 2019) was held in Beijing recently, and Ni Guangnan, an academician of the Chinese Academy of Engineering, looked forward to the ...[Details]
1 Optical part
Although there are many methods to measure tiny particles, such as microscopy and sedimentation, optical methods have more advantages:
(1) Due to the transmittance of light, no...[Details]
DS18B20——Temperature sensor. The microcontroller can communicate with DS18B20 through 1-Wire and finally read the temperature. The hardware interface of 1-Wire bus is very simple. You only need to co...[Details]
Tesla is considering building a factory in Germany. Recently, German media revealed more details about Tesla's German factory. Tesla plans to invest 4 billion euros ($4.4 billion) to build the fact...[Details]
Platform: xp system, ARM mini2440
Program name: Key interrupt control LED light Main learning content, S3C2440 external interrupt
Encounter problems
1. When the HyperTerminal was downloading a pr...[Details]
Power ripple test is a very important parameter in power quality testing, but how to accurately measure power ripple has become a difficult problem in the minds of engineers. How can we solve this ...[Details]
The clock oscillator is one of the basic components of electronic products, the heart of all electronic systems, and the foundation for the normal operation of the system. Its main function is to pro...[Details]
WASHINGTON (Reuters) - The U.S. Federal Trade Commission on Thursday objected to Qualcomm's plan to release internal Apple documents in an effort to block enforcement of a ruling in a May antitrust l...[Details]
According to foreign media reports, on September 13, Our Next Energy (ONE), a startup in Michigan, USA, announced the launch of a new anode-free battery pack that is expected to reduce battery costs ...[Details]
On February 18, the Software Branch of the China Association of Automobile Manufacturers released the China Automotive Operating System Open Source Plan. The first original microkernel open source ve...[Details]
Test products: Car audio and video monitoring board and 24V power board
Leimao laboratory temperature and humidity: 26 degrees, 61%
Test standards: static electricity, surge, load d...[Details]