Name
Pin #
Type
Section
Pin Group
Orientation
Order
Sub-symbol
NC
1
Not Connected
No Connect
Left
IOREF
2
Output
Output
Right
~{RESET}
3
Input
Control
Right
3V3
4
Power Out
Power
Top
+5V
5
Power Out
Power
Top
GND
6
Power In
Power
Bottom
GND
7
Power In
Power
Bottom
VIN
8
Power In
Power
Top
A0
9
Bi-Directional
I/O
A
Right
A1
10
Bi-Directional
I/O
A
Right
A2
11
Bi-Directional
I/O
A
Right
A3
12
Bi-Directional
I/O
A
Right
SDA/A4
13
Bi-Directional
Communication
Right
SCL/A5
14
Bi-Directional
Communication
Right
D0/RX
15
Bi-Directional
GPIO
Left
D1/TX
16
Bi-Directional
GPIO
Left
D2
17
Bi-Directional
GPIO
D
Left
D3
18
Bi-Directional
GPIO
D
Left
D4
19
Bi-Directional
GPIO
D
Left
D5
20
Bi-Directional
GPIO
D
Left
D6
21
Bi-Directional
GPIO
D
Left
D7
22
Bi-Directional
GPIO
D
Left
D8
23
Bi-Directional
GPIO
D
Left
Arduino_UNO_R3
