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
In the third article of this series, we will teach you how to get started with the Raspberry Pi and learn how to install a Linux operating system. — Anderson Silva If you have followed our series of articles in order, then you have already chosen[1] and purchased[2] your Raspberry Pi and peripherals, and now … 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
The distributed battery management system of electric vehicles mostly uses a master control unit and several slave control units. Unlike most electric vehicle battery management systems that use a 12V battery for power supply, the BMS discussed in this article is directly powered by the power battery pack (total voltage of 72V). This not only … Read more
Recently, I have been organizing my collection of e-books to make them accessible online. Although the Calibre desktop application is powerful and can enable local HTTP services, the HTTP interface is rather simplistic. I discovered an open-source project called Calibre Web, which has a very nice interface, supports multi-user management, and can be deployed directly … Read more
Click the blue text above to follow us The latest teardown of the iPhone 12 Pro Max shows the differences in its camera system compared to the one used in the iPhone 12 Pro, with a larger sensor and OIS mechanism resulting in a bigger camera module. After performing routine teardowns on other iPhone models, … Read more
On October 9th, Shenzhen Hangshun Chip Technology R&D Co., Ltd. (hereinafter referred to as “Hangshun Chip”) teamed up with Lichuang Mall to bring an exciting product selection live broadcast for electronic engineers. During the event, Hangshun Chip’s senior application technology expert Eddie Yang shared in-depth knowledge about the ARM® Cortex®-M4 core HK32F407 chip with the … Read more