The document provides an overview of the Arduino prototyping platform. It discusses the main components of Arduino including the Arduino board itself, external hardware like sensors and actuators, and the Arduino IDE. It describes the key capabilities of Arduino boards like the ATmel microcontroller, I/O pins, and programming interfaces. The Arduino can be used to build all kinds of projects from automatic plant watering systems to quadcopter autopilots by connecting various external hardware and programming it using the Arduino IDE.

1. MillerOpenUniversity
What Arduino is

2. There’s what you’ll find in this section :
1. Arduino Functionality.
2. External Hardware.
3. Arduino IDE.
4. Build a blink project.
Overview
MillerOpenUniversity

3. The best part about the Arduino prototyping platform is that it’s
whatever you want it to be. The Arduino could be an automatic
plant-watering control system. It can be a web server. It could
even be a quadcopter autopilot. The Arduino is a microcontroller
development platform paired with an intuitive programming
language that you develop using the Arduino integrated
development environment (IDE). By equipping the Arduino with
sensors, actuators, lights, speakers, add-on modules (called
shields), and other integrated circuits, you can turn the Arduino
into a programmable “brain” for just about any control system.
…It’s impossible to cover everything that the Arduino is capable of,
because the possibilities are limited only by your imagination.
WhatisanArduino ?

4. Arduino is open source
hardware, all the design files,
schematics, and source code
are freely available to
everybody

5. Exploringthe
ArduinoEcosystem
Getstarted
01

6. Arduinomaincomponents
In your adventureswiththe Arduino, you’lldepend onthreemaincomponents foryour projects:
Arduino
The Arduino board itself
External Hardware IDE
The Arduino integrated
development environment, or
Arduino IDE
External hardware (including both
shields and hand-made circuits.
Sensors and Actuators.

7. Arduino
Functionality
Arduino boards capabilities
and functions
1.1

8. Arduino Functionality
All Arduino boards have a few key capabilities and functions. Take a moment
to examine the Arduino Uno:
 Atmel microcontroller
 USB programming/communication interface(s)
 Voltage regulator and power connections
 Breakout I/O pins
 Debug, Power, and RX/TX LEDs
 Reset button
 In-circuit serial programmer (ICSP) connector(s)

10. Arduino Functionality
ATMEL Microcontroller
● Most Arduino boards, including the Arduino Uno, use an AVR ATMega
(ATMega 328p)microcontroller.
● This microcontroller is responsible for holding all of your compiled code
and executing the commands you specify.
● The Arduino programming language gives you access to microcontroller
peripherals eg. general-purpose input/output (I/O) pins.

11. Arduino Functionality
Programming Interfaces
● Ordinarily, ATMega microcontroller programs are written in C or
Assembly and programmed via the ICSP interface using a dedicated
programmer.
● Perhaps the most important characteristic of an Arduino is that you can
program it easily via USB, without using a separate programmer.

13. Arduino Functionality
General I/O and ADCs
● The part of the Arduino that you’ll care the most about during your
projects is the general-purpose I/O and ADC pins.
● All of these pins can be individually addressed via the programs you’ll
write. All of them can serve as digital inputs and outputs.
● The ADC pins can also act as analog inputs that can measure voltages
between 0 and 5V.

14. Arduino Functionality
Power Supplies
● For the majority of your projects, you will simply use the 5V
power that is provided over your USB cable.
● However, when you’re ready to untether your project from a
computer, you have other power options. The Arduino can
accept between 6V and 20V (7-12V recommend) via the direct
current (DC) barrel jack connector, or into the Vin pin.
● The Arduino has built-in 5V and 3.3V regulators:
○ 5V is used for all the logic on the board. In other words,
when you toggle a digital I/O pin, you are toggling it
between 5V and 0V.
○ 3.3V is broken out to a pin to accommodate 3.3V shields
and external circuitry.

15. Arduino Functionality
Arduino Boards
This Course cannot possibly cover all the available Arduino boards;
there are many, and manufacturers are constantly releasing new
ones with various features.

16. DigitalInputsand
Outputs
what makes the Arduino so useful is
that the system is equipped with
both inputs and outputs
1.2

17. DigitalInputsandOutputs
Working with Breadboards
A breadboard is a simple prototyping tool that easily allows you to wire up
simple circuits without having to solder together parts to a custom printed
circuit board.

20. You can use Ohm’s law to decide on a resistor value for this
circuit. Assume that this is a standard LED with 20mA
forward current and a 2V drop across it. Because the source
voltage is 5V and it ends at ground, a total of 5V must drop
across this circuit. Since the LED has a 2V drop, the other 3V
must drop across the resistor

21. Datasheet
1.2.1
a document that summarizes the
performance and other characteristics of
component

22. IDE
The Arduino integrated
development environment,
or Arduino IDE
1.3

23. Downloading andInstallingthe Arduino IDE
Access the Arduino website at www.arduino.cc and download the newest version of the IDE
from the Download page