DIY Laser Engraver Using Old DVD Drives

 Tip:Click on the top“Learn CNC“↑Free Subscription Making a small laser engraver by yourself is not difficult: disassemble two DVD drives, and after a few back-and-forths, you can get it done. Especially with this tutorial, mama doesn’t have to worry that you can only break the electronics at home anymore. CNC enthusiasts can try it … Read more

RK3588 Series Live Stream | RK3588 Android Development Q&A

RK3588 Series Live Course Second Issue <RK3588 Android Development Q&A> Live Time: August 16th, Tuesday 19:00 Detailed explanation of the application scenarios and related development processes of RK3588 Covering scenarios such as tablets, smart cockpits, electronic whiteboards, conference systems, live streaming machines, commercial displays, high-end POS devices, etc. Research and development issues collection is ongoing, … Read more

Understanding the Architecture of Arm Cortex-A53 Cache

Click on the card below to follow Arm Technology Academy This article is authorized and reprinted from the WeChat public account Arm Selected. This article mainly shares the architecture interpretation of A53 cache. 1 A53 uses the classic big-LITTLE architecture Below is an early classic big-LITTLE architecture diagram. Figure 1 Figure 2 2 A53’s cache … Read more

Getting Started with Arduino for Beginners

In portfolios, we often see many devices implemented using Arduino, which could be interactive devices or artistic installations. Many students are interested in Arduino and enjoy working on related projects, finding them quite engaging. Today, Teacher Cheng from Mark Pen Design Study Abroad will discuss Arduino-related knowledge to help interested students get started. Arduino is … Read more

Design of an ADS-B Signal Receiver Based on Software Defined Radio

Abstract: In order to obtain track information in a timely manner, a software defined radio receiver system for Automatic Dependent Surveillance-Broadcast (ADS-B) signals is designed based on the RF front-end chip AD9361 and the baseband data processing chip Zynq-7000. A detailed hardware framework design is provided, a Linux platform is established, and the AD9361 register … Read more

Comprehensive Overview of Huawei HarmonyOS Ecosystem

“Harmony + Euler” are the two operating systems that Huawei is focusing on developing, which is Huawei’s “soul-casting” project. Euler not only serves Kunpeng but also supports X86, positioning itself as an operating system for servers, edge computing, cloud, and embedded devices. Harmony serves smart terminals, the Internet of Things, and industrial terminals, and is … Read more

High-Performance 64-bit General Development Board ODROID-C2

Professional open-source development platform hardware supplier — Hardkernel has previously released a 64-bit high-performance general development board for global developers, this board, codenamed ODROID-C2, is priced at 40 dollars and is currently being publicly sold on its official homepage. (ODROID-C2) ODROID-C2 has a body size of 85 x 56 mm, weighs 40g, and uses the … Read more

IoT Gateway Development: Design Process Based on MQTT Message Bus (Part 2)

Dao Ge’s 022nd Original Article 1. Introduction 2. MQTT Connection with Cloud Platform 3. Proc_Bridge Process: The Bridge Between External and Internal Message Buses 4. Conclusion 1. Introduction In the previous article “IoT Gateway Development: Design Process Based on MQTT Message Bus (Part 1)”, we discussed how to utilize the MQTT message bus in an … Read more