Project #15 · Safety
Open the door and the buzzer sounds — meet the tiny electronic watchman that never sleeps.
Alarm system: a circuit that sounds a buzzer when a door opens (magnet switch) or when water touches a sensor
Today AI watches CCTV feeds, spots danger in crowds and warns entire cities before floods and storms arrive.
Presenters: keep this page pinned on the projector. Launch your project in a new tab, or use Open here to avoid switching windows — it keeps the speech one click away.