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NTSB says multiple errors led to fatal 2025 crash involving Army helicopter

A fatal collision between an American Airlines regional jet and Army Black Hawk helicopter near Reagan Washington National Airport in January 2025 was the result of a "multitude of errors" and ...
EDN

Short push, long push for sequential operation of multiple power supplies

In MCU-based projects, this design uses a single push button to switch on and switch off 5-V and 15-V supplies in sequence.
Hackaday

Motorized Faders Make An Awesome Volume Mixer For Your PC

These days, Windows has a moderately robust method for managing the volume across several applications. The only problem is ...
Hackaday

The Graph Theory Of Circuit Sculptures

Like many of us, [Tim]’s seen online videos of circuit sculptures containing illuminated LED filaments. Unlike most of us, however, he went a step further by using graph theory to design glowing ...

Engineers builds Arduino-led game console from a fidget clicker and I want to fidget with it so badly

Arduino test code is run to see if the sensors are working properly, with built-in LED flashing when the sensor is triggered, and turning off when the sensor is released. The testing of the keys ...
spectrumlocalnews

NTSB: Systemic problems across multiple organizations led to last year's DC midair collision

WASHINGTON — The operating supervisor of the air traffic controllers at Ronald Reagan Washington National Airport was experiencing reduced alertness and may have been complacent when an American ...
IEEE

ML-Based Receiver Design for Chirp-Based Asynchronous Pulse Code Multiple Access for Massive IoT

Abstract: Asynchronous Pulse Code Multiple Access (APCMA) is a pulse-based wireless communication scheme designed for Massive IoT, offering high resilience against largescale packet transmissions from ...