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A power supply is not a simple small box. It is the heart of an active device, providing energy to components continuously. The quality of the power supply directly affects the performance of compone...[Details]

LED dot matrix display is a simple Chinese character display, which is cheap, easy to control, and has a long service life. It can be widely used in various public places, such as stations, docks...[Details]

1. The basic format of PIC microcontroller program First, let's introduce two pseudo instructions: EQU -- label assignment pseudo instruction ORG -- address definition pseudo instruction More chip ...[Details]

Keysight Technologies Releases Fourth Security Report Focusing on Three Critical Threats to Cybersecurity Cybersecurity threats include pandemic-driven phishing, ransomware, and major supply chain ...[Details]

At 11:30 pm on September 20, NVIDIA's Fall GTC kicked off on time. NVIDIA CEO Jensen Huang delivered a speech live online, announcing: "Atlan is no longer number one... it will be replaced by Thor....[Details]

    America's mad science department has a new idea again, this time imagining a future where the body doesn't need a lot of drugs to stay healthy, but only uses the body's own resources. Simply p...[Details]

I saw a 16X16LED Chinese character display made by a friend on 51hei's forum. I wanted to make one as a birthday gift to express my love for it! To satisfy my hands-on hobby!  The driver circuit is...[Details]

In recent years, urban electricity consumption has increased year by year, which has put forward higher requirements for energy supply methods and new power systems. In 2022, driven by the dual carbon...[Details]

1. Measurement principle of ultrasonic flowmeter Ultrasonic flowmeter is a non-contact flowmeter. The working principle is: when ultrasonic waves propagate in the fluid, their propagation speed is af...[Details]

Advances in battery technology are solving the dilemma of electrification of commercial vehicles such as electric heavy trucks, driving the rapid growth of power battery installed capacity. 　　 Accord...[Details]

　　The circuit shown in Figure 1 is a 4mA to 20mA current loop transmitter for communication between process control systems and their actuators. In addition to being cost-effective, this circuit is t...[Details]

1. Smart devices For many people, the Internet of Things (IoT) is already a reality. As we control our Nest thermostats with our smartphones, use wristbands to track our steps, and watch videos on ...[Details]

As major automakers have successively launched their own electric vehicles, Ford's release of the Mach-E electric crossover has not only attracted great discussion, but also received a large number o...[Details]

Recently, the international data research organization IDC released the latest global wearable market report for 2019. In 2019, Xiaomi became the number one wearable device brand in China and the sec...[Details]

Nowadays, multimedia computers are entering families. Due to the limitations of materials, cost, size and other aspects of the speakers with amplifiers, the sound quality is acceptable at low volume,...[Details]