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A
X
4
B
/
A
X
4
B
P
A
X
4
B
/
A
X
4
B
P
G
P
O
(
G
e
n
e
r
a
l
P
G
P
O
(
G
e
n
e
r
a
l
P
GPO (General Purpose Output) is an advanced specification developed by AOpen for power users to define the further
function by oneself. For example, you can design a daughter board to provide additional capabilities, such as an alarm, a buzzer,
a timekeeper, etc.
2
GPO27
GPO24
3.3V
1
r
o
r
o
u
r
p
o
s
e
O
u
t
p
u
t
)
u
r
p
o
s
e
O
u
t
p
u
t
)
6
GPO28
GND
NC
5
C
o
n
n
e
c
t
o
r
C
o
n
n
e
c
t
o
r
53
O
n
l
i
n
e
M
a
n
u
a
l
O
n
l
i
n
e
M
a
n
u
a
l
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Troubleshooting
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