U2
C3
Capacitance
4.7uF
R3
Resistance
22 Ω
L1
Inductance
22uH
R8
Resistance
10KΩ
C5
Capacitance
1uF
R2
Resistance
1KΩ
R1
Resistance
1KΩ
D1
U5
BT1
LED1
J2
U3
U4