Hands-free access. Just say the code out loud and the lock opens. Without Internet.

Simple and inexpensive way to make such a device, if you have basic knowledge of electronics and microcontrollers.

An open-source programmable watch that can monitor air quality.

Your doctor at your fingertips!

Voice Master Board by Next Builder

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.

A relatively simple and inexpensive way to make this device that is often used in alternative medicine.

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

Detect USB Killer flash drivers and prevent damage to hardware.

A weather-responsive clothes shelter that automatically moves your drying laundry under cover when it rains, and returns it back once the skies clear—all managed via IoT.

This is a real-time GPS tracking project built around the NodeMCU ESP8266 module and a Neo‑6M GPS module, powered by Wi-Fi rather than cellular networks

This project demonstrates a basic electronic security system using an Arduino Uno, a 4x4 keypad, and a relay-controlled electric lock. When a predefined PIN code is entered correctly on the keypad, the Arduino activates a relay that unlocks the door for a short duration, then automatically locks it again. If an incorrect code is entered, access is denied. This system can be expanded with features like an LCD display, buzzer alerts, multiple user PINs, and tamper detection.