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Schematic

Layout

3D View

R5
Resistance
150 Ω
R4
Resistance
150 Ω
R1
Resistance
5.11kΩ
R3
Resistance
2.2kΩ
R2
Resistance
10kΩ
Q1
C2
Capacitance
4.7uF
L1
Not Recommended for New Designs
Inductance
2.2uH
C7
Capacitance
1uF
C6
Capacitance
1uF
U1
BAT1
C8
Capacitance
0.1uF
RED
*
0
RST
8
C5
Capacitance
22uF
5
C1
Capacitance
120pF
GREEN
C4
Capacitance
22uF
6
C3
Capacitance
22uF
2
1
9
7
#
3
4
D1
IC1
ISP
BZ1

Keypad lock reference design