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Ars Technica 探讨了 DIY VR 头显的现状：借助 Relativty VR、Project North Star、SlimeVR 等开源项目，爱好者可用几百美元自制头显，但过程充满焊接、刷固件和3D打印的痛苦，仍属小众玩法。
一位爱好者展示了自制的 ZX Spectrum Next 笔记本电脑第二版，采用 3D 打印外壳、原装 Next 键盘、14 英寸屏幕和自制 PCB，解决了初代设计在铰链、屏幕兼容性与键盘方面的问题。
An ESP32 primer sparked by the incident of a 97-yuan recording device (XIAO ESP32-S3 Sense) found in OpenAI's office, covering chip architecture in detail, the firmware flashing process, how to use AI to assist development, and five low-cost hands-on projects.
A developer used AI coding agents, ultimately GPT-6 Astra, to jailbreak an unused Kindle and build KindleCTL — a custom toolset and photo slideshow app controlled from a MacBook over Wi-Fi. The post details failed attempts with other models, Anthropic's safety blocks, and how a self-service feedback loop let the agent debug the e-ink display.
加拿大YouTuber兼软件工程师Anthony Sistilli自制了一台Flock风格的自动车牌识别（ALPR）摄像头来追踪警车，随后皮尔区警察上门询问其数据使用意图，凸显了警方对公民使用同款监控技术的双标争议。
User @DeRonin_ shares a free DIY tutorial for building a teleoperated robot arm setup using SO-101 arms and LeRobot, arguing that universities charge tens of thousands for the same skills while platform algorithms buried the post.
This article describes a DIY business card designed with PCBs that uses NFC energy harvesting to power LED animations without batteries, involving MCU implementation and techniques like Charlieplexing.
A physicist built an ESP32-based speed and distance tracker for his hamster's wheel, automatically uploading nightly runs to the hamster's own Strava account. The hamster logs surprisingly long distances, like 6 miles in a single night.
Zeus WPI details building a local positioning system using Ultra-Wideband to track runners at the 12Urenloop race, replacing Bluetooth-based lap counting with centimeter-level localization.
A detailed build log for Birduino, a card-triggered audio player that plays bird calls when NFC-tagged cards are tapped, built on the open-source TonUINO platform with an Arduino Nano and RFID reader.
A 16-year-old used Claude AI to write a program and built a portable positioning device that receives Starlink satellite beacon signals for about $180 in hardware. It sells for $899 and has sold 350 units. No GPS or network required for positioning.
This article describes the author's project of bringing the pinball table from the classic Windows game "Space Cadet Pinball" to life, building a real mechanical pinball machine from scratch using 3D printing, microcontrollers, and homemade mechanisms. It details the design and iteration of rebound buffers, drop targets, slingshots, and other features.