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This paper proposes a design scheme of LED dot matrix handwriting screen based on PIC microcontroller. This scheme uses PIC 16F877A microcontroller as the main core control component and designs a 32...[Details]

The Linux kernel is open source, allowing many people to modify and redistribute it. However, open source is a double-edged sword when it comes to unpatched security vulnerabilities. 　　 Recently, sec...[Details]

Buttons are essential input devices in single-chip microcomputer applications. In this article, we will introduce the working principle of independent buttons based on the 51 single-chip microcompute...[Details]

With the popularity of new energy vehicles, Great Wall Motors launched its own Euler brand. However, Great Wall Motors has been plagued by battery issues, so they decided to make their own batteries....[Details]

3. Set the window height and width The encoder input is a YUV420 code stream in CIF format, so the acquisition window height is set to 288 and the width is set to 352. 4. Get video frames...[Details]

　　1. Introduction 　　UPS is usually used in places with high requirements for power quality, such as financial departments, medical centers, communication systems, military equipment, etc. UPS is gene...[Details]

　　introduction 　　At present, most audio signal processors are not only large in size but also expensive, and are difficult to be popularized in some special aspects. Embedded system analyzers are sma...[Details]

1.1 ARM Core      If you want to use WinCE or Linux operating system to reduce software development time, you need to choose   ARM chip with MMU (memory management unit) function above ARM720T. ARM72...[Details]

1. Reset 1.1 Power-On Reset A positive change on the VDD pin of S12 will trigger a power-on reset. When S12 is powered on, it starts with a known, determined setting. The specific sta...[Details]

Host: UBUNTU10.04LTS, cross toolchain: arm-linux-gcc 2.95, installation directory: /usr/local/arm/2.95.3/bin Target board: Edukit-III, S3c2410 daughter board Problem description: Since the LINUX vers...[Details]

Usually, the R×10, R×100, and R×1K ranges of the multimeter are selected for testing and judgment. The red and black test leads are connected to the negative pole of the capacitor respectively (the ...[Details]

Qualcomm is reportedly the world's largest supplier of smartphone processors, with excellent computing power and energy efficiency. In 2019, Qualcomm announced that it would enter the fast-growing ma...[Details]

At the end of 2022, Longli Technology signed a 3 billion yuan supply order for Mini LED backlight car screens with the German Bosch Group. From the perspective of the industry, this has injected a "b...[Details]

1 Introduction In the past 100 years, lighting technology has gone through three important development stages: incandescent lamps, fluorescent lamps and HID lamps. Due to its many advantages such as ...[Details]

1 Introduction Energy is an important material basis for the existence and development of human society. With the development of society, energy is decreasing day by day, and with the increasingly ...[Details]