How can we accurately detect whether window/door is opened using different sensors?
Window Switches are most common and accurate way.
Questions: 1.Is it common to use air pressure detection to solve such problems? Can it be done accurately? This thread mentioned to use MS5611 sensor. Can it solve the issue? Volumetric air sensor for burglar alarm 2.Are there any other accurate way (other than air pressure detection and switches) that can be used to solve this problem?