Burglar alarms get triggered in different ways. Motion sensors —such as those that use infrared light— are sometimes placed ...

Burglar alarms misbehave for a number of reasons ... FYI: Most motion sensors use passive infrared (PIR) detection. When a ...

He thus set about working on a burglar alarm that would fit his unique requirements. An ESP32 is the heart of the operation, paired with a long-range LoRa radio module running at 868 MHz.

[Jeff Sandberg] demonstrates that ably with his project to use ancient 1990s burglar alarm sensors in his modern smarthome setup. The sensors in question are from an old GM Interlogix security system.