azhan
Newbie level 1
Hello,
I'm having problem building a circuit that meet my requirement below;
3 normally closed switch attached to each door (1 switch for 1 door) in my house, whenever one of the door opens, a Red LED light will turn on and stays on even the door had been re-closed. Same goes with other 2 switch.
Reason: I want to built a circuit whereby I could know which door had been open in my house. To avoid an intruder to get into my house.
I try to combine these 3 normally-closed Switches with 3 red LED powered by 9V battery. But failed
Can somebody draw me a simple diagram on how can I achieve it?
PS: I already manage to make 1 circuit with 3 normally-closed switch triggered alarm/siren whenever a door is open but not able to fit in LED lights to indicates which door had been open. So I decided to do seperate circuit, 1 for alarm/siren, 1 for Red LED lights to indicates which door had been open. Below are my success circuit (Thanks to Ron J).
Thanks A lot
Azhan
Malaysia
I'm having problem building a circuit that meet my requirement below;
3 normally closed switch attached to each door (1 switch for 1 door) in my house, whenever one of the door opens, a Red LED light will turn on and stays on even the door had been re-closed. Same goes with other 2 switch.
Reason: I want to built a circuit whereby I could know which door had been open in my house. To avoid an intruder to get into my house.
I try to combine these 3 normally-closed Switches with 3 red LED powered by 9V battery. But failed
Can somebody draw me a simple diagram on how can I achieve it?
PS: I already manage to make 1 circuit with 3 normally-closed switch triggered alarm/siren whenever a door is open but not able to fit in LED lights to indicates which door had been open. So I decided to do seperate circuit, 1 for alarm/siren, 1 for Red LED lights to indicates which door had been open. Below are my success circuit (Thanks to Ron J).
Thanks A lot
Azhan
Malaysia