Simple circuit - Electronic Circuits Projects Diagrams Free

TAZ-MANIAC · 11th March 2004, 02:31 AM

Trying to make a simple circuit.
Open circuit
Close the circuit and a buzzer goes off for a period of time (10 seconds)
and stays off while circuit is closed (or for another set time).
Then Cycle again.
I'm building one of those carnival games that uses a hoop that you move along a curvy rod without touching it or the buzzer goes off. I'm trying to make it so the buzzer won't continue to go off if someone sets it off and walks away.

Any help would be great

tony

Russlk · 11th March 2004, 03:43 AM

Use an LM555 one shot with capacitive coupled trigger.

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

11th March 2004, 02:31 AM	(permalink)
TAZ-MANIAC	Simple circuit Trying to make a simple circuit. Open circuit Close the circuit and a buzzer goes off for a period of time (10 seconds) and stays off while circuit is closed (or for another set time). Then Cycle again. I'm building one of those carnival games that uses a hoop that you move along a curvy rod without touching it or the buzzer goes off. I'm trying to make it so the buzzer won't continue to go off if someone sets it off and walks away. Any help would be great tony

11th March 2004, 03:43 AM	(permalink)
Russlk	Use an LM555 one shot with capacitive coupled trigger. __________________ see my website: www.geocities.com/russlk