I want to make an MP3 player with SD card based on a single-chip microcomputer, but I know very little about it. I would like to ask an expert to give me some relevant information. Thank you!...
In the power design on the WEBENCH page, you can design an ACDC power supply. Here we design a power supply with 110-220V input and 12V1A output. Similar to the DCDC design, first enter the parameters...
My program is as follows: The program is blocked in the read function and cannot return... #include
#include#include
#include
#include// Set baud rate
int set_speed(int fd, speed_t speed)
{struct term...
[url]http://blog.chinaunix.net/uid-2413049-id-4108308.html[/url] Some experience of playing BBB. I took a lot of detours when I did it myself. I hope it will be useful to those who come after me. Welc...
It's a bit scary. I don't know if this pillow that looks like blood flowing is scary or funny, but one thing is for sure, it's definitely creative. You can use this pillow to play a prank on all your ...
In today's society, heart disease has seriously affected people's life safety. Many patients with sudden heart attacks are threatened because they cannot get timely treatment. Traditional ECG monito...[Details]
The U.S. Food and Drug Administration (FDA) points out that home health care is the fastest growing area in the medical device industry. Driven by the increase in average life expectancy, the increasi...[Details]
Medicines are special commodities. If patients are given the wrong medicine, fake medicine, inferior medicine or expired medicine, it will pose a threat to people's health and lives.
In recent...[Details]
Ultrasound systems are among the most sophisticated and complex signal processing instruments in widespread use today. Like any complex instrument, there are many trade-offs to be made in implement...[Details]
This article introduces a miniature home electrocardiograph. The instrument has powerful functions: display monitoring, storage, playback, printing, record management, power alarm, telephone or Intern...[Details]
Currently, it is impossible to dynamically obtain patient information in medical monitoring. Once the patient's condition worsens, emergency treatment cannot be implemented in the first place, and the...[Details]
Many medical applications require portable, self-powered devices that do not require external power and data cables. The most obvious example is a portable data logger that patients carry with them to...[Details]
Electrocardiogram is an important means of diagnosing heart disease. However, due to various reasons, it is difficult to capture abnormal electrocardiograms with ordinary electrocardiographs. Although...[Details]
Abstract: CC2420 is a 2.4GHz RF chip introduced by Chipcon that complies with the IEEE 802.15.4 specification. It is used to develop ZigBee devices and products for PAN networks such as industrial ...[Details]
When it comes to ATX power supply, people will think of two "classic" ICs: pulse width modulation chip TL494 and voltage comparator LM339. The new dedicated control chip AT2005B has the functions ...[Details]
1. Intrusion Detection System (IDS)
IDS is the abbreviation of "Intrusion Detection Systems" in English, which means "Intrusion Detection System" in Chinese. Professionally speaking, it monito...[Details]
China National Stadium Project Introduction
The National Stadium (Bird's Nest), the main venue for the opening and closing ceremonies of the 2008 Beijing Olympic Games, is located on the g...[Details]
With more and more countries, regions and cities legislating to require drivers to use hands-free calling systems, as well as the shrinking wallets of most consumers around the world and the uncert...[Details]
High-speed serial communication networks are transmitting data and video information at unprecedented speeds. As transmission speeds increase, the evaluation of networks and their components become...[Details]
The four-element infrared detector uses photosensitive elements, and the alarm is triggered only when each detector detects a signal. It has stronger anti-false alarm capability and better detectio...[Details]
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