I was looking for a sensor that could automatically detect falls to monitor the elderly. The first candidate that came to mind was a millimeter-wave radar sensor like the Aqara Presence Sensor FP2. It ...

Prologue — Why an ESP32 Drone Now? March 2026. A video posted by DIY engineer "Max Imagination" on YouTube shook the hobbyist world. The title was "Build The Smallest ESP32 Brushless Rocket Drone | ...

Radio trackers have become an important part of studying the movements of wildlife, but keeping one running for the life of an animal has been challenging. Researchers have now developed a way to let ...

Reaction wheels are useful things, typically used by satellites to keep themselves oriented the right way up in space. Turning the reaction wheel creates an equal and opposite torque in the spacecraft ...

Please Don't Scroll Past This Can you chip in? The Internet Archive partners with libraries, archives, and institutions across the globe to preserve cultural heritage that would otherwise be lost ...

Project HomeSeismograph is a low-cost Arduino-based seismic vibration detector designed to monitor vibrations and display real-time signal changes on an OLED screen. The project was developed as a ...

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2.2.2 Hardware implementation The sensing node utilizes the JY901S 9-axis inertial measurement unit. Built upon the MPU6050 core architecture, it integrates a 3-axis accelerometer, a 3-axis gyroscope, ...