Arduino uno Manual

• 3 x 6 Header (White/Red/Black)
• A0 / 5V / Ground
• A1 / 5V / Ground
• A2 / 5V / Ground
• A3 / 5V / Ground
• A4 / 5V / Ground
• A5 / 5V / Ground
There is also a 3-pin blue header that that brings out 5V, ground and D2 that can be used for a digital sensor
or other remote connection
• 1 x 3 Header (Blue)
• G = Ground
• ‘+‘ = 5V
• S = D2 – digital I/O
• RGB LED
And for good measure, there is a 5-pin header that brings out D3, D5, D6, 5V and Ground. This puts 3
PWM outputs along with power and ground on a single connector which can be handy for several things
like driving an RGB LED.
• 1 x 5 Header (Blue)
• ‘ ‘ = 5V – This pin is unmarked but sits next to D7
• B = D6 – B could be used for Blue on RGB LED
• G = D5 – G could be used for Green on RGB LED
• ‘-‘ = Ground

Arduino uno Specifications

General

Form factor	Arduino
Certification	RoHS, FC, CE
Processor model	-
Processor frequency	- MHz
Microcontroller model	ATmega328
Microcontroller frequency	16 MHz
DC input voltage	7-12 V
Operating voltage	5 V
DC current per I/O pin	40 mA
Flash memory	0.032 MB
Maximum internal memory	- GB
SRAM (Static Random Access Memory)	2 KB
EEPROM (Electrically Erasable Programmable Read-Only Memory)	1 KB
Wi-Fi	No
Number of analog I/O pins	6
Number of digital I/O pins	14

Weight and Dimensions

Board dimensions	53.4 x 68.6 mm