ALARM system circuit

[Anti_virus_abdo]

hii guys .. plz i want help in my project . My project is about an alarm system circuit . so please anyone have any idea plz tell me But i don't want it very complicated i want it simple and any types
but plz for any one want to help me i want the circuit diagram and simple explain to the main idea


And thanks alot

 

[TrevorP]

Do you have any designs that people could give advice on? I mean it sounds pretty simple: Switch Completes circuit and alarm sounds.

 

[Anti_virus_abdo]

Do you have any designs that people could give advice on? I mean it sounds pretty simple: Switch Completes circuit and alarm sounds.

I mean any simple design .. yes with sound Or light or the both

 

[AllVol]

I mean any simple design .. yes with sound Or light or the both

Attached is something to get you started.

By the way, its not nice to double post.