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Files

Schematic

Layout

3D View

R5
Resistance
150 Ω
R4
Resistance
150 Ω
A7
MOSI
MISO
TXD/D1
ROW_3
A5/D19
COL_3
A4/D18
COL_1
RESET
ROW_4
A2/D16
D21
ROW_1
SCK
D20
LED_G
RXD/D0
LED_R
A3/D17
LED_G
D10
COL_2
LED_R
BUZZER

Keypad lock Module