In the trend of digitalization, networking, high-definition, and intelligence of video surveillance systems, the market demand for network video surveillance systems has been increasing. With the extensive involvement of the security industry, especially with the comprehensive launch of projects like safe cities and intelligent transportation, monitoring scenarios have become more complex, with scattered monitoring points. … Read more

Dear readers, I am Cherie, and today is my first day at work. I am so excited!~(≧▽≦) (Let me quickly have a chip to calm down…) Today, let’s take a look at Arduino Network Communication. What is Arduino? Do you think it is just a circuit board? No~no~no~ It’s a misunderstanding (￣▽￣)~* Arduino is a … Read more

To reduce the reflection phenomenon during high-speed signal transmission, it is necessary to maintain impedance matching at the signal source, receiving end, and transmission line. The specific impedance of a single-ended signal line depends on its line width and its relative position to the reference plane. The line width/spacing of differential pairs with specific impedance … Read more

Testing Background The Raspberry Pi 4 is a very popular maker computer in the Chipmaker community, setting a new benchmark for single-board computers worldwide. As the latest generation product of Raspberry Pi, it benefits from a processor chip with four Cortex A72 architecture computing cores, with a main frequency of up to 1.5GHz, providing performance … Read more

Mini Computer Stick: Compact Size, Big Power Today, I would like to share with you a portable mini computer stick, which is only the size of a USB flash drive and can be used as a computer host. The content is for learning and communication purposes only. In today’s rapidly changing technology landscape, computers are … Read more

Hello everyone, I am Xiaoyueyue, Maker Faire 2019 is being held in San Mateo, California, USA, and as usual, Arduino will announce their new products at the exhibition. This year is no exception, they released a new Nano series, with 4 boards: Every, 33 IoT, 33 BLE, and BLE Sense. Below, Xiaoyueyue will introduce each … Read more

This public account serves as a compilation base for the vast number of crochet enthusiasts. The editor is responsible for collecting and organizing resources from the internet to help save more time for little fairies to crochet. Welcome to follow! All diagrams published on this public account are reprinted from publicly available communities on the … Read more