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vasy_skral
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Keypad lock reference design
Files
Schematic
PCB
Open in Flux
Q1
R5
Resistance
150 Ω
U1
R4
Resistance
150 Ω
R1
Resistance
5.11kΩ
R3
Resistance
2.2kΩ
R2
Resistance
10kΩ
C2
Capacitance
4.7uF
MOSI
MISO
SCK
L1
Not Recommended for New Designs
Inductance
2.2uH
C7
Capacitance
1uF
C6
Capacitance
1uF
ROW_3
RESET
+5V
COL_3
COL_1
RESET
ROW_4
ROW_2
+5V
+5V
BUZZER
MOSI
VBAT
ROW_1
+5V
ROW_1
SCK
+5V
LED_G
RESET
ROW_3
LED_R
COL_2
MISO
ISP
LED_G
COL_1
+5V
BZ1
ROW_2
C8
Capacitance
0.1uF
COL_2
LED_R
+5V
ROW_4
+5V
COL_3
BUZZER
RED
*
BAT1
0
RST
D1
8
C5
Capacitance
22uF
5
IC1
C1
Capacitance
120pF
GREEN
C4
Capacitance
22uF
6
C3
Capacitance
22uF
2
1
9
7
#
3
4
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