Source: Internet Organized and published by the IoT Think Tank —— [Introduction] —— GPS and base station positioning technologies basically meet users’ needs for location services in outdoor scenarios. However, people spend 80% of their lives indoors, and a large number of positioning needs occur indoors for personal users, service robots, and new IoT devices. … Read more
Hello everyone, I am Xiao Yueyue. Today we are going to talk about the newly released Raspberry Pi 4. Speaking of Raspberry Pi, it is a series of amazing small computers that can be used in any field your imagination can reach, such as smart home or robotic production lines. It has created the gold … Read more
This article introduces how to complete a face detection project on Raspberry Pi using OpenCV and Python. The project not only describes the specific steps required to identify faces but also provides a lot of extended knowledge. Furthermore, this project does not require readers to have a detailed understanding of face recognition theory, making it … Read more
Don’t want to miss my updates? Remember to click on the top right corner to view the official account and set it as a star. Please take off a star for me. Measure water level, temperature and humidity, video monitoring, control lighting switches, all with one app! The video above demonstrates an automatic irrigation system … Read more
Arduino, as a convenient, flexible, and easy-to-use open-source electronic prototyping platform, is popular among various groups of people. We will launch a series of Arduino learning posts to help you quickly master this increasingly popular microcontroller. Our “Getting Started with Arduino” will guide everyone to understand Arduino, starting with the simplest “Hello World!” program, helping … Read more
1. Starting the WatchDog The WatchDog is created and started in the startBootstrapServices() method of the SystemServer process. //[frameworks/base/services/java/com/android/server/SystemServer.java]public final class SystemServer implements Dumpable { private void startBootstrapServices(@NonNull TimingsTraceAndSlog t) { t.traceBegin("startBootstrapServices"); // Start the watchdog as early as possible so we can crash the system server // if we deadlock during early boot t.traceBegin("StartWatchdog"); … Read more
Hot Article Introduction | Click the title to read Welcome to join the Java and Android architecture knowledge community Senior Wireless Development Expert from Alibaba Shares Career Development Advice for Programmers Advanced Secrets of Architecture Interviews: Recommended Excellent Articles from May Author: hamberluo Link: https://juejin.im/post/5af296226fb9a07a9a10d6f1 Are Android Engineers Really Commonplace Now? At Google I/O, a … Read more
The editor’s note from IT Home: The Pen Review Room, as an established review media, has always been a must-read public account for IT Home editors to learn about notebook-related knowledge. In the new media era, Zhu Wang’s reviews of notebooks remain humorous and objective, and his Bilibili videos are full of fun and entertainment, … Read more
Project Name: PCB Electronic Instrument Project Author: Modified Workshop Director Introduction Before we look at today’s open-source recommendation, let’s understand what a Stylophone is. Stylophone is an electronic instrument. It was all the rage in the 1970s. In fact, its creation was a coincidence; an enthusiast came up with the idea while repairing a toy … Read more
Introduction to mr-library mr-library is a lightweight framework for embedded systems that provides a unified low-level driver device model and basic service functions. It features modular design, configurability, and extensibility, helping developers quickly build embedded applications. The mr-library framework supports basic kernel functions such as mutexes and object management. It integrates asynchronous event-driven frameworks (events), … Read more