A compact, DIY laboratory power supply platform powered by ESP32, featuring closed-loop motor control for precise voltage and current adjustment, real-time measurement, and an intuitive graphical display. Users can select from predefined voltage and current presets or save custom settings for repeated use. Designed for hobbyists and makers, it enables hands-on exploration of analog and digital circuits with high precision and flexibility, combining practical functionality with an educational and experimental approach.

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

We are refining KeyMod and currently testing four connector prototype directions. They all work, but daily usability feels different. This round focuses on plug-in comfort, device clearance, portability, and real-world workflow convenience. You can also check the KeyMod pre-launch page and help us vote on the connector direction.

A simple but very useful Zener diode tester

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

RISONATORE ENERGETICO AMBIENTALE/ENVIRONMENTAL ENERGY RESONATOR Environmental Energy Resonator: Design and Harmony in the Palm The Environmental Energy Resonator is an experimental device. PCB ART/EXPERIMENT

A set of 8 pistons with a timing belt and spark plugs.

Patreon: Beginner

This programmer is intended for the family of PIC 8-40 pin microcontrollers, using an universal socket.

Simple electronic circuit.

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.

This build integrates an RTL-SDR v3 (RTL2832U+R820T2) covering 500 kHz - 1.766 GHz, paired with a 100 kHz - 2 GHz, 30 dB LNA powered by an internal 5 V → 1.2 - 24 V DC converter. A second RTL-SDR DAB/DVB receiver (RTL2832U+FC0012) covering 45 - 930 MHz, feeds into the USB 3.0 hub that forms the system’s primary data bus. A M8N-type GPS USB module supplies GNSS reception on L1 band (1.559 - 1.610 GHz) along with a PPS output for precision timing. The build also incorporates an EvilCrow RF v2, using a Wi-Fi enabled ESP32-PICO-D4. The microcontroller drives two CC1101 transceivers on 300 - 348 MHz, 387 - 464 MHz, and 779 - 928 MHz, as well as a NRF24L01+PA+LNA (GT24) module for 2.400 - 2.525 GHz operation. External antennas are connected through BNC, SMA, and RP-SMA ports grouped on one side of the device. The ruggedized design and weather-sealed connectors ensure reliable radio reconnaissance in the field.

Learn how to make PCBs at home using just two materials.

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.

WiFi-Enabled, modular prototyping platform for creating and testing electronics projects with ease.