When upgrading the firmware through DFUDEMO, micropython prompts that the upgrade is complete. After resetting, why does the program written in the main.py file still exist? How can I know whether the...
I haven't touched this thing for 10 years. Recently, my company suddenly has a product that needs this thing. The hardware CPU is AT89C52. I have an Insignt ME-52 bought 10 years ago, but I can't find...
Lithium-ion batteries can be used in small electronic devices as well as larger applications such as electric vehicles and power grids, and they can easily meet the requirements of various sizes, volt...
Temperature automatic control system based on DS18B20 and four-digit LED
1: Use DS18B20 to collect temperature with an accuracy of 0.1 degrees.
2: Using 89S52 chip.
3: Adopt four-digit common anode LE...
Today's portable medical devices allow patients to diagnose and treat themselves, move around freely, and even use the devices when they are out and about. To achieve the "easy to carry" feature, po...[Details]
Blood pressure is one of the important physiological parameters of the human body. Accurate measurement of it is conducive to early detection and identification of hypertension types, and to the pro...[Details]
introduction
With the rapid development of my country's aviation industry, various new aircraft and control equipment have been successfully developed. Some previous measurement and control eq...[Details]
Lithium-ion batteries have a high energy-to-weight and energy-to-volume ratio, no memory effect, can be recharged many times, have a long service life, and are becoming increasingly cheaper. A good...[Details]
introduction
With the increasing popularity of Internet applications, the degree of information sharing is constantly improving. The digitization and networking of embedded devices has b...[Details]
1. Basic circuit characteristics of power amplifier
The basic circuit of the complementary symmetrical OTL power amplifier is shown in Figure ①. Among them: C1 is the signal input coupling ele...[Details]
The microwave multifunctional therapeutic device uses microwave radiation for heating treatment, which can achieve the effects of sterilization and blood circulation. Using microwaves to directly c...[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]
For mobile phone products, using low-cost components in design is only the first step to make the price competitive. The cost of the production process, especially the cost incurred during the fina...[Details]
introduction
The latest embedded designs enable a multitude of complex new products and services across a wide range of industries and applications. Driven by shrinking cost constraints an...[Details]
0 Introduction
μClinux is an operating system for embedded control. It inherits most of the features of the Linux kernel and is designed for embedded microprocessors without a memory manag...[Details]
1 Introduction
With the improvement of people's living standards, people pay more and more attention to their physical health and are eager to find a simple and portable diagnostic and tre...[Details]
In the past one or two years, driven by Apple's iPhone, the smartphone market has expanded rapidly. An important feature of portable products such as smartphones is that they have more and more fun...[Details]
Set-top boxes often have some faults during the use process. This is a problem commonly reported by users. Due to the lack of professional knowledge and skills, users are often at a loss when probl...[Details]
0 Introduction
In the fields of signal acquisition and processing, digital communication, automatic detection and multimedia technology, digital/analog converters are often indispensable p...[Details]
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