This document describes a schematic for hand and break-a-beam detection based on the MLX75303 Optical Switch SensorEyeC. Hand Detection is gaining popularity in a lot of consumer applications like ...

As risk managers will be aware, warnings from across the globe that the past decade has been the hottest on record ­­­due to persistent heatwaves are prompting fire safety specialists to focus on the ...

Universities are included among some of the world’s historic, cultural and architectural treasures and are at risk of being damaged or lost to fire. When structures are hundreds of years old and not ...

Perimeter protection and intrusion detection can be unwieldy, requiring special consideration to prevent the occurrence of false alarms, especially in light of potentially noisy environments. Recent ...

Optex expands on its industry leading outdoor battery powered intrusion line by adding the SL-350QFR, a 350 ft. battery-powered photoelectric detector requiring no trenching or wiring. “Even with the ...

This circuit is presented as an alternative to the IR beam break detector featured in the June 2009 issue (Silicon Chip). In order to make it relatively insensitive to ambient light, it uses a ...