I have a normally closed switch that the door to my apt. holds shut.
(so its off when the door is closed and on when its open)
I am trying to have it so that if someone opens the door the buzzer goes off but i need it to keep going off even if they close the door.
its all going to be run at 9vdc
now, i understand that i could probably do this with a PIC or something like it but i don't understand the programing that well.
I am not opposed to using IC's i just don't want to have to program one.
sorry if your having a hard time following this i just cant think of a better way to describe what i mean.
(so its off when the door is closed and on when its open)
I am trying to have it so that if someone opens the door the buzzer goes off but i need it to keep going off even if they close the door.
its all going to be run at 9vdc
now, i understand that i could probably do this with a PIC or something like it but i don't understand the programing that well.
I am not opposed to using IC's i just don't want to have to program one.
sorry if your having a hard time following this i just cant think of a better way to describe what i mean.
Last edited: