Security researchers have uncovered a new attack method, “Glowworm,” that can recover audio from a device’s LED power indicator light. In a new paper, researchers from Ben-Gurion University say an ...

The reduced engine power light (typically referred to as the "check engine light" or "malfunction indicator lamp") will illuminate when the engine management unit (CPU) detects a malfunction or ...

You’ve got an apparently simple design requirement on your latest AC-line powered project: provide a distinctly illuminated indicator to show that the unit is plugged into the line and that power is ...