DasPreetam
Advanced Member level 4
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I'm trying to make a simple burglar alarm circuit. My basic idea is to construct a transmitter circuit using led/infra-red/laser diode connected to a cell, and the receiver circuit consisting of a photodiode/phototransistor and a relay.
When light falls on the receiving element (photodiode/phototransistor), it drives the relay to it's ON position... When the light is interrupted (by the burglar), the relay switches to it's off position and the alarm is sounded.
Is my idea okay ? Or am I making some mistakes ? Also, can anyone suggest a circuit simulator that'll help me to simulate my design ? I have multisim but it is poor for relays and photo elements.
When light falls on the receiving element (photodiode/phototransistor), it drives the relay to it's ON position... When the light is interrupted (by the burglar), the relay switches to it's off position and the alarm is sounded.
Is my idea okay ? Or am I making some mistakes ? Also, can anyone suggest a circuit simulator that'll help me to simulate my design ? I have multisim but it is poor for relays and photo elements.