Push button alarm with self-locking relay

342

04:23:45

Self-locking relay lets you trigger an an alarm with a push of a button. Subsequent pushes of the button have no effect and alarm stays on.

Challenge for you - design a circuit where opening a door triggers an alarm. The alarm should stay on even after the door is closed.

published 11 years ago

Igor

11 years ago

Relay switch has zero resistance, so for now please use a small external resistor when needed.

zaibi

11 years ago

Challenge accepted...i m gonna makee that

Igor

11 years ago

This circuit requires EveryCircuit 2.11 to run as it has a new push-button component.

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