Simple electronic circuit.

Expansion board for ESP32 boards.

Low-cost PMR446 collinear with high gain, accurate impedance match, and a fully 3D-printed structure for reproducible builds.

Apply sound data-based anomalous behavior detection, diagnose the root cause via object detection concurrently, and inform the user via SMS.

I am Abdullah, a mechanical engineer specializing in high-quality CAD modeling and design. This single-seater Formula Student style race car showcases my skills in creating precise, functional, and visually appealing models. Featuring a lightweight tubular chassis, ergonomic bucket seat, aerodynamic rear wing, and detailed suspension and drivetrain systems, it demonstrates both technical accuracy and engineering creativity. I provide CAD modeling, 3D rendering, and manufacturing-ready drawings for automotive, mechanical, and industrial projects. My focus is on precision, practicality, and performance, turning concepts into professional, manufacturable designs that exceed expectations.

ZoeTheRobot runs a home made custom chat bot that allows her to answer questions and follow spoken commands.

Patreon: Beginner

Simple way to turn this module into a really functional and cheap PEMF device that is usually sold at a very high price.

The Quadcopter Y1101 is a 3D SolidWorks–modeled, high-aerodynamic-resistance racing drone designed for precision, speed, and stability. This project merges simulation-driven design with hands-on fabrication, using 6-inch NACA-M18 propeller blades to maximize lift efficiency and maintain stability at high flight velocities. However, the blade design is fully parametric and customizable, meaning the propeller geometry can be modified or redesigned based on the research methodology being pursued. This allows engineers and researchers to explore performance variations across different airfoil profiles, pitch angles, and chord lengths, enabling targeted optimization for speed, stability, and flight precision in both racing and research applications. The Y1101 was created as a 3D-printable prototype platform for testing aerodynamic performance and control algorithms, bridging the gap between simulation-based design and real-world racing drone prototyping.

Aujourd’hui, l’automatisation rend notre quotidien plus sûr et plus simple, en réduisant les risques et en allégeant les tâches répétitives. Je vous présente mon projet : un distributeur de gobelets automatique. Contrairement aux solutions classiques à plusieurs étages d’engrenages, j’ai opté pour un système poulie-courroie : plus simple, plus fiable et facile à maintenir. Cette conception permet de délivrer des gobelets rapidement, en toute sécurité, tout en restant accessible pour une fabrication pratique.

The system presented in this proposal is referred to as SPL, Static Pressure Launch, a compact and passive ejection mechanism designed to harness environmental pressure differentials for reliable high-altitude capsule release and safe ground handling.

Let's see how to install the MicroPython programming language and the Thonny development environment on the Raspberry Pi Pico.

The ultimate beginner’s board to learn, build, and master Arduino the easy way.

With a current consumption of only a few microamperes, this thermometer can operate for years on a single CR2032 battery—or indefinitely with a solar cell.

Minimalistic board that allows you to quickly and easily utilize a silicon photomultiplier (SiPM) within your other projects. Supports a range of input voltages, has a digital (TTL) pulse output for the registered counts and a direct output for the SiPM pulses for easy expansion.