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Users Circuits
Share your circuit with the world here!
2 circuits
Buzzer
Optocoupler
Clear all
Battery
Resistor
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Optocoupler
Public Circuits
second 4
Battery
Switch
Lamp
Buzzer
Optocoupler
162
22 Sep 2026
Edmond Serifov
first 4
Battery
Switch
Lamp
Buzzer
Optocoupler
156
22 Sep 2026
Edmond Serifov
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