This project demonstrates how to interface an HC-SR04 ultrasonic distance sensor with an SSD1306 OLED display using the STM32 Blue Pill microcontroller. The system measures distances and displays them ...

Abstract: Achieving high sensitivity and structural integration in metamaterial sensors for liquid permittivity measurement remains a significant challenge, primarily due to limited electromagnetic ...

Abstract: Accurate liquid-level measurement in storage tanks is crucial for industrial production, as it directly affects both efficiency and safety. In high-risk tank environments, liquid-level ...

A quantum net for dark matter: A distributed intercity network of quantum sensors is placing additional constraints on the parameters that axionic dark matter could have. (Courtesy: USTC) A new of way ...

A drone view shows a newly built and yet to open Tesla Supercharger station in Lost Hills, California, U.S., February 5, 2026. Tesla says the station is not connected to the electrical grid, features ...

Sanctions are an instrument to prevent conflict or respond to emerging or current crises, and to promote peace, democracy, respect for the rule of law, human rights and international law. Restrictive ...