A7
R5
Resistance
150 Ω
MOSI
MISO
TXD/D1
SCK
ROW_3
A5/D19
R4
Resistance
150 Ω
COL_3
A4/D18
COL_1
RESET
ROW_4
A2/D16
D21
MOSI
ROW_1
SCK
D20
LED_G
RXD/D0
RESET
A6
LED_R
A3/D17
MISO
LED_G
D10
COL_2
LED_R
R2
Resistance
10kΩ
BUZZER
+5V
+5V
+5V
+5V
RED
RST
GREEN
ISP