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Q2
Q1
U1
R1
Resistance
1KΩ
R2
Resistance
2KΩ
R3
Resistance
1KΩ
R4
Resistance
0.2 Ω
IC1
J1
C1
Capacitance
Capacitance
LED3
C2
Capacitance
Capacitance

Doorbell with Camera Reference Design