➀ Guides users to build a portable Raspberry Pi Zero webcam system using a mobile hotspot for global live streaming and motion detection;

➁ Leverages open-source Motion software for low-resource video processing and ZeroTier VPN for secure internet access without router configurations;

➂ Provides hardware setup instructions and software configuration steps for dual functionality as a surveillance device with timestamped recordings.

➀ Presents a DIY delay-off timer circuit using TLC555 IC for automated appliance control;

➁ Offers selectable preset timing options (5-30 mins) using dedicated push switches;

➂ Details circuitry, components, and applications in home, office, and automotive scenarios to improve energy efficiency

➀ LightLink is a novel system developed by the University of Calgary that enables full customization of commercial smartwatches using visible light communication between the display and external modules, bypassing traditional protocols like Bluetooth.

➁ The platform supports bidirectional data transfer, allowing third-party sensors (e.g., thermometers), actuators, and modules to be added without requiring firmware modifications or manufacturer support.

➂ Demonstrated with eight functional prototypes, LightLink empowers DIY developers and users to extend smartwatch capabilities, potentially fostering a low-cost ecosystem of modular light-based accessories.

➀ The article explains how four-color e-Paper displays work using charged particles in microcapsules, requiring no backlight and retaining images without power.

➀ It demonstrates a DIY project using a 400×168 e-Paper display with ESP32, AHT10 sensor, and RTC, achieving ultra-low power consumption (30 µA in sleep mode) for 2-month battery life.

➂ The project code integrates libraries for graphical control, with applications ranging from smart clocks to IoT signage, highlighting e-Paper's potential in low-power display solutions.

➀ A keyboard enthusiast built a custom 13-inch laptop using Framework 13 components, replacing its membrane keyboard with a low-profile mechanical KL Chalk switch design for superior typing feedback;

➁ The DIY project involved designing a scratch-built aluminum chassis, custom PCB, and rotary dials for volume/brightness control, along with an integrated USB hub (which initially failed);

➂ Demonstrates the potential of modular laptops for extreme customization, though requiring advanced machining and electronics skills.

➀ Tech enthusiast Bitluni recreated a Commodore 64 Datasette using 1993 microcassette tech, achieving 1MB storage per tape (5x original capacity);

➁ Custom PCB design, 3D-printed housing, and signal optimization enabled real-time data transfer at 500bps;

➂ Future plans include USB-C mass storage integration and running C64 emulators directly from tapes.

➀ Step-by-step guide on building a delay-off appliance timer using the TLC555 timer IC;

➁ Explains interfacing with a relay and AC power for real-world applications;

➂ Highlights practical uses in controlling devices like fans and lights with automatic shut-off.

➀ Electronics For You launches Electroons 2.0 in August 2025, featuring humorous engineering-themed comics;

➁ The series creatively addresses AI’s societal impact, engineering challenges, and tech-related humor;

➂ Includes satirical illustrations on topics like "AI-proof careers" and witty takes on circuit design.

➀ Demonstrates a DIY project to build an AC power saver using CD4060 timers and relays for energy efficiency;

➁ Explains circuit interfacing and installation methods to achieve periodic AC shutdowns;

➂ Targets electronics enthusiasts, students, and AC users seeking energy-saving solutions.

➀ The article provides a step-by-step guide to building a timer-controlled doorbell using a CD4060 timer IC and a relay, aimed at managing AC power usage efficiently;

➀ It explains the interface between the CD4060, relay components, and AC circuits, along with practical installation tips for the system;

➁ The project targets DIY enthusiasts, electronics students, AC manufacturers, and users seeking energy-saving solutions.

➀ The Ryzen 7 9800X3D is currently unmatched in gaming performance;

➁ Newegg offers a bundle with the Ryzen 7 9800X3D CPU, X870 AORUS Elite Wi-Fi 7 motherboard, 32GB DDR5 memory, and 1TB SSD for $699;

➂ The CPU alone is worth about $500, making this an excellent deal.

➀ An individual has shared a guide on converting an old HDD into a variable speed disc sander;

➁ The project requires minimal time, tools, and components;

➂ The modified HDD could be used for tasks like sharpening nail scissors or reshaping small wooden utensils.

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➁ The Pimoroni Presto (Retail Edition) is a 'programmable desktop companion' that packages the Presto hardware in retail wrapping;

➂ It features a 4-inch square touchscreen with RGB ambient lighting.

➀ This article provides a comprehensive guide on building the world's smallest AI-powered spy camera.

➁ Readers will learn about Digital Visual Interface (DVI), interfacing a camera with a microcontroller, and designing a multi-stream live-streaming camera.

➂ The article also highlights the integration of AI algorithms for image processing and object detection to enhance the camera's capabilities.

➀ The Asus ROG Strix X870E-E Gaming Wifi is a budget-friendly AM5 motherboard with a variety of features and a premium design.

➁ It offers ample USB Type-A and C ports, 3x PCIe 5.0 M.2 sockets, and AI features like AI Overclocking and AI Cooling II.

➂ The board delivers robust performance and connectivity at a sub-$500 price point, making it a competitive option for gamers and DIY builders.

➀ This article provides a detailed guide on building an electronic dice using an ESP32 microcontroller, complete with a rolling effect and LED representation of dice faces.

➁ The project involves integrating various ICs like 74LS138, 74LS260, and CD4075 to handle logic operations and decoding functions for dice faces.

➂ The guide includes a bill of materials, circuit diagram, and sample code snippets for implementation in Arduino IDE, making it accessible for beginners and hobbyists interested in DIY electronics projects.

➀ This article introduces a DIY project for building a two-digit counter using a 7-segment display and a 555 timer.

➁ The counter increments from 00 to 99 with each clock pulse and resets after reaching 99, featuring separate control for units and tens digits.

➂ The project explains the circuit design and working principle, involving components like LM555 timer, CD4033 decade counters, and 7-segment displays.

➀ A PC enthusiast successfully delidded an AMD Ryzen 9 9950X3D using fishing line and a clothes iron;

➁ The process involved cutting the adhesive with fishing line and heating the IHS with a clothes iron;

➂ The enthusiast achieved a stable overclock of almost 6,000 MHz.

➀ A Raspberry Pi Pico-powered fightstick adds a new twist to the classic fightstick by incorporating additional buttons.

➁ The fightstick, designed by Goblinhan Yıkan, automates button mashing for fighting game combos, enhancing the gaming experience.

➂ The project uses a Raspberry Pi Pico as the main controller, offering GPIO support and HID functionality.

➀ This article introduces a soil moisture indicator designed for gardening applications, which uses an Arduino Nano and an LCD display to indicate the moisture level of the soil.

➁ The device categorizes soil moisture into four levels: dry, humid, wet, and 'sensor not in soil'. It provides a cost-effective solution for monitoring soil moisture with minimal human intervention.

➂ The project includes detailed instructions for building the indicator, including the necessary components like the Arduino Nano, Soil Moisture Sensor, and LCD I2C, along with the corresponding circuit diagram and source code.