Abstract: This work aims to demonstrate the capability of a low-cost experimental setup to monitor surface plasmon resonance (SPR) chemical sensors based on plastic optical fibers (POFs) and ...

This project is a simple, variable-frequency sine wave generator built on the Arduino platform. It uses Pulse-Width Modulation (PWM) to produce a digital approximation of a sine wave, which is then ...

Abstract: Human physiological signals play a crucial role in the fields of health assessment, sports medicine, and human–computer interaction. However, human vibration signals exhibit a wide frequency ...

The great thing about building with gates is the crazy speeds you can achieve by using hardware directly (as opposed to working with simple microcontrollers). This 100 MHz frequency counter is a great ...

A research team at Los Alamos National Laboratory recently found that the strength difference between two very high-frequency radio pulses in lightning is closely related to the altitude of the ...

NASHUA, New Hampshire — August 21, 2025 — BAE Systems received a contract from Lockheed Martin in December 2024 for additional radio-frequency (RF) sensors that provide critical guidance capabilities ...

Researchers in the US have compiled the largest-ever dataset of high-frequency radio signals from lightning to investigate how a bolt’s altitude within a cloud influences how its energy radiates. The ...

NXP has launched the MCX A34 mixed-signal Arm Cortex-M33 industrial MCU, an upgrade of the MCX A14x and MCX A15x MCUs, which were introduced in 2024.