Gate Alarm Using CD4093 IC
This simple gate alarm circuit activates when a door, gate, or any switchable object closes a normally-open switch (SW).The switch can be a magnetic reed switch or any other normally-open type. When SW closes, the CD4093 IC triggers the alarm, providing an audible or visual alert.
This project is ideal for learning basic logic gate applications in security circuits and for creating small DIY alarms for doors, windows, or gates.
