USB 3.0 PCB 布线完全指南：高速差分信号对设计实战
USB 3.0 PCB 布线终极指南：90Ω 差分阻抗控制、等长匹配（5mil 以内）、参考平面完整性、过孔 stub 优化、层叠设计、ESD 保护与信号完整性仿真验证，附 KiCad/Altium 实战要点与布线规则对照表。
🔥 热门文章
查看全部
KiCad MCP Server 实战：用 AI 辅助 PCB 设计、原理图与布线
KiCad MCP Server 是什么？如何让 AI 辅助画原理图、PCB 布线、DRC 检查？本文详解 3 大主流 KiCad MCP Server 安装配置、实战案例与工具对比，附完整配置示例。
24GB 显存跑千问3.8 27B：RTX 4090 实战教程
RTX 4090 24GB 显存能跑千问 3.8 27B 吗？本文实测 AWQ/GPTQ 两种量化方案，对比显存占用、推理速度与应用场景，附完整部署代码与性能优化技巧。
16 岁少年用 Claude 打造星链接收器：AI 辅助硬件开发实战
16 岁少年用 Claude AI 辅助开发星链卫星信号接收器，成本仅 180 美元。本文详解硬件清单、AI 辅助开发流程、信号解码原理及法律合规性，附 DIY 实战指南。
Pi Coding Agent 2026 完全指南：从入门到精通
Pi Coding Agent 是什么？如何安装配置？本文详解 Pi Agent 核心功能、实战案例与高级技巧，附 Pi Agent vs Claude Code vs Cursor 对比表。
DJI 4G模块完整指南2026｜图传增强 + 远程控制 + 设置教程
DJI 4G图传模块深度解析：Cellular Dongle 2技术原理、与O4 Air Unit实测对比、ESP32+4G LTE DIY替代方案、WFB-ng开源方案。支持Mini/Air/Mavic系列，含延迟数据和成本分析。立即查看→
Build an ESP32 Occupancy Sensor for $5: The Complete HLK-LD2410 mmWave Radar DIY Guide
DIY a human presence sensor with a $5 ESP32 + HLK-LD2410 mmWave radar module — detects stationary humans and integrates with Home Assistant. Full wiring diagram, Arduino code, and ESPHome config in this 2026 hands-on tutorial.
$5 打造 ESP32 人体存在传感器：HLK-LD2410 毫米波雷达 DIY 完全指南
用 5 美元 ESP32 + HLK-LD2410 毫米波雷达模块 DIY 人体存在传感器，检测静止人体，接入 Home Assistant。完整接线图、Arduino 代码与 ESPHome 配置，2026 实战教程。
ESP-NOW 协议完全指南 2026：ESP32 无需路由器的点对点通信
深入解析乐鑫 ESP-NOW 协议，2026 年用两块 ESP32 搭建无 WiFi 路由器的无线传感网络，含 Arduino/ESP-IDF 代码、加密、200 米实测距离与功耗数据。
USB 3.0 PCB Routing Complete Guide: High-Speed Differential Pair Design
Master USB 3.0 PCB routing: 90Ω differential impedance control, length matching (within 5mil), reference plane integrity, via stub optimization, stackup design, ESD protection, and signal integrity simulation. Includes KiCad/Altium practical tips and routing rules comparison table.
KiCad MCP Server in Practice: AI-Assisted PCB Design, Schematics & Routing
What is KiCad MCP Server? How to use AI for schematic drawing, PCB routing, and DRC checks? This guide covers 3 major KiCad MCP Server implementations, installation, practical examples, and tool comparisons.
Running Qwen 3.8 27B on 24GB VRAM: RTX 4090 Deployment Guide
Can RTX 4090 24GB VRAM run Qwen 3.8 27B? We benchmark AWQ vs GPTQ quantization, compare VRAM usage, inference speed, and real-world use cases with full deployment code.
16-Year-Old Builds Starlink Receiver with Claude: AI-Assisted Hardware Development in Practice
A 16-year-old uses Claude AI to develop a Starlink satellite signal receiver for just $180. This article details the hardware list, AI-assisted development process, signal decoding principles, and legal compliance, with a DIY practical guide.
DJI 4G Module Explained: How It Works + DIY Alternatives (2026)
Deep dive into DJI 4G transmission module technology. Learn how DJI Cellular Dongle 2 works, compare it with O4 Air Unit, and build your own ESP32 + 4G LTE alternative. Complete comparison table and real-world test data included.
ESP-NOW Protocol Complete Guide 2026: ESP32 Router-Free Point-to-Point Communication
Deep dive into Espressif's ESP-NOW protocol, build a WiFi router-free wireless sensor network with two ESP32 boards in 2026, including Arduino/ESP-IDF code, encryption, 200m tested range and power consumption data.
IKEA Abandons Zigbee for Matter: ESP32-C6 Practical Guide 2026
IKEA announced abandoning Zigbee for Thread/Matter protocol. Is the DIRIGERA hub just a transition solution? This article builds a Thread Border Router with a $5 ESP32-C6, integrates IKEA TRETMANN and RODRET devices, compares DIRIGERA vs ESP32-C6 solutions, includes complete Home Assistant integration and Zigbee vs Matter deep analysis.
Arduino Beginner Practice: Photoresistor Detection + Serial Servo Control
Arduino zero-basics practical tutorial, covering photoresistor analog signal reading, serial monitor real-time display of light changes, servo wiring and serial control angle. Two classic projects help you quickly master sensor input and actuator output.
Arduino Motor Driver Complete Guide: A4988 Stepper Motor + L298N DC Motor Practice
Learn Arduino motor driving from scratch - A4988 controlling stepper motors (42 stepper), L298N driving DC motors, including wiring diagrams, complete code, microstepping configuration, PWM speed control, and common troubleshooting.