U2
R7
Resistance
1KΩ
C3
Capacitance
4.7uF
GND
R3
Resistance
22 Ω
L1
Inductance
22uH
VBAT
C2
Capacitance
10uF
D1
C1
Capacitance
10uF
R2
Resistance
1KΩ
R6
Resistance
2KΩ
3V3
R1
Resistance
1KΩ
U5
U3
LED1
BT1
J2
U4
IC1