This document is a schematic diagram for an Arduino Nano circuit board. It contains 3 sentences: 1) It shows the pin connections for an Arduino Nano board connected to various sensors, displays, buttons, relays, motors and other components. 2) Power is supplied through the Vin and GND pins and regulated to 5V with an L7805 voltage regulator. 3) The diagram labels and connects each component, shows power and data connections between components, and provides a title, revision number, date, and author.

1. A A
B B
C C
D D
1
1
2
2
3
3
4
4
5
5
TITLE:
Sheet_1 REV: 1.0
Date: 2019-11-06
Sheet: 1/1
Drawn By:
Company:
ARDUINO_NANO
U2
D11/MOSI
14
D10
13
D9
12
D8
11
D7
10
D6
9
D5
8
D4
7
D3
6
D2
5
GND
4
RESET
3
D0/RX
2
D1/TX
1 VIN 30
GND 29
RESET 28
+5V 27
A7 26
A6 25
A5 24
A4 23
A3 22
A2 21
A1 20
A0 19
AREF 18
3V3 17
D13/SCK 16
D12/MISO
15
2 PIN SCREW HEADER TERMINAL
RELAY5
+
1
-
2
5V
L7805ABV
U5
GND
IN
1
2
OUT 3
HEADER 1X3
PROXIMITYSENSOR
1
1
2
2
3
3
5V
D2
GND
D2
5V
GND
10
11
Header-Male-2.54_1x4_C59481
LCD1
1
2
3
4
SCL
SDA
5V
but1
GND
but1
SDA
SCL
PHIL_BUTTON_2PIN_NO
U3
1 2
N/O PUSH
PHIL_BUTTON_2PIN_NO
U1
1 2
N/O PUSH
D3
GMD12095YB-24V2400
BUZZER1
1
2
GND
13
13
HEADER - HEADER-FEMALE-2.54_1X4
H1
1
1
2
2
3
3
4
4
5V
SCK
DT
SCK
SCK
DT
SW_DIP-2
SW2
1
2
ON
3
4 1
2
Berg2
P2
1
1
2
2
1u
C1
1u
C2
GND
D3
5V
HEADER 1X3
PROXIMITYSENSOR2
1
1
2
2
3
3
HEADER - HEADER-FEMALE-2.54_1X4
MOTORDRIVER
1
1
2
2
3
3
4
4
12
9
9
10
11
12