#include stdio.h
#define FRAME180
short int h[19] = {399,-296,-945,-1555,-1503,-285,2112,5061,7503,8450,7503,5061,2112,-285,-1503,-1555,-945,-296,399
};
static short int nBuff[FRAME + 20];
void Lowpas...
1. IntroductionDuring the debugging process of the device, you often need to check some data and operating status of the device. Use the STM32H745 development board to display the main data and status...
There are many high-frequency ultrasonic sensors for sale on the Internet, but they do not have the relevant sensor processing circuits.
How can we design this kind of circuit? The sensor doesn’t seem...
Introducing a national invention patent - a smart water meter with one card. The patent was applied by Zhengzhou Leyuan Electronic Technology Co., Ltd. and was authorized on January 9, 2018.Contents
T...
There are generally two reasons for oscilloscope waveform jitter. One is that the signal is not synchronized, which is a problem with the oscilloscope trigger setting. The other is that the signal its...
Signal integrity is the main criterion for measuring signal quality with an oscilloscope, especially when we need to observe small signals or slight changes in large signals, signal integrity becomes ...
The STM32L053R8T6 microcontroller I'm using now has a USB interface. I've been using a UART to USB chip to support the USB function. Now that this microcontroller has one, I want to use the follo...[Details]
A "cloud" floated over the horizon, inspiring the spirit of power grid enterprises and starting a real business. Whether it is the "ubiquitous power Internet of Things" of the State Grid or the "Di...[Details]
Open source has become a trend in the software industry. However, due to the convenience of using open source, some companies may ignore the risks it brings. Open source components and ...[Details]
According to a video shot by an American netizen (Mario Herger), a completely unmanned Waymo autonomous driving Pacifica is driving in the suburbs of Phoenix. Unfortunately, the video does not show w...[Details]
China is drafting a new law to protect data privacy in order to keep up with the rapid development of technology and meet the huge needs of society, but the problem is that enforcement remains a chal...[Details]
Samsung Electronics has successfully developed a "5G integrated base station" (Access Unit) that supports the 28GHz frequency band. It is the product that can support the fastest speed among the curr...[Details]
Any transformer has leakage inductance, but the leakage inductance of the switching transformer has a particularly important impact on the performance indicators of the switching power supply . Due...[Details]
1 Introduction
At present, due to the high price of spectrum analyzers, only a few laboratories in colleges and universities are equipped with spectrum analyzers. However, in electronic informati...[Details]
Samsung Galaxy Community officially announced that the internal beta test of One UI 3 for the Samsung Galaxy S20 series will begin soon. The internal beta test of One UI 3 is expected to be carried o...[Details]
Electric vehicles are a strategic emerging industry in my country, playing an important role in improving my country's energy security, responding to climate change, and improving environmental quali...[Details]
According to the latest issue of Nature magazine, physicists at the Massachusetts Institute of Technology in the United States have successfully captured electrons in pure crystals. This is the first...[Details]
Post-production printed circuit boards (PCBs) of moderate complexity are traditionally inspected using in-circuit testing (ICT) and functional testing. Other testing methods, such as expensive optica...[Details]
On May 30, technology media The Information published a blog post yesterday stating that Apple had contacted OpenAI as early as mid-2023, and Microsoft was concerned about the deal between the two ...[Details]
#include "Stdio.h"
#include "Conio.h"
int main(void)
{
int nums ; /*The larger the nums array is and the longer it is, the larger the factorial can be calculated, but changing the a...[Details]