This document provides an introduction to Arduino and Arduino programming language. It defines Arduino as an open-source prototyping platform based on microcontrollers and an easy-to-use IDE. Key aspects covered include how to set up the Arduino environment, select a board and port, and understand the basic structure of an Arduino program using setup() and loop() functions. Examples demonstrated include blinking an LED, reading serial data, and creating infinite loops. The document aims to explain the basics of Arduino for beginners.

1. Introduction to Arduino
&
Programming language
By
C. Vamshi Krishna
Department of Electronics & Communication
Engineering
GITAM School Of Technology
GITAM University
Bengaluru Campus

2. What is arduino?

3. What is arduino?
 Arduino is an open-source prototyping platform
based on easy-to-use hardware and software.
Arduino boards are able to read inputs - light on
a sensor, a finger on a button, or a Twitter
message - and turn it into an output - activating
a motor, turning on an LED, publishing
something online.

4. What is arduino?
 In General, we use the Arduino programming
language (based on Wiring) and the Arduino
Software (IDE), based on Processing.

5. Why arduino?
 Arduino has been used in thousands
of different projects and applications.
 The Arduino software is easy-to-use
for beginners.
 It runs on Mac, Windows, and Linux.
 Programming language is easy.

6. Advantages over
microcontrollers
 Arduino boards are relatively inexpensive
compared to other microcontroller platforms.
 The Arduino Software (IDE) runs on Windows,
Macintosh OSX, and Linux operating systems.
Most microcontroller systems are limited to
Windows.

7. How to start?
1.Check out:
http://arduino.cc/en/Guide/HomePage
2. Download & install the Arduino environment
(IDE)
3.Connect the board to your computer via the USB
cable
4.Install the drivers for arduino board
5.Launch the Arduino IDE
6.Select your board, serial port, processor.
7.Open the blink example
8. Upload the program

8. Arduino IDE

9. Selecting arduino board

10. Selecting the processor

11. Selecting the serial port

12. Using the arduino

13. Example arduino code

14. Checking the output
 Press the upload button on the top of
the software.
 Open the serial monitor to see the
output.

15. Status messages

16. What is arduino
programming? Arduino consists of both a physical
programmable circuit board and a piece of
software, or IDE (Integrated Development
Environment) that runs on your computer, used
to write and upload computer code to the
physical board.
 An open-source hardware platform based on an
Atmel AVR 8-bit microcontroller and a C++
based IDE
 Over 300000 boards have been manufactured
 Arduino Due is based on a 32-bit ARM Cortex

17. Important functions
 Serial.println(value);
◦ Prints the value to the Serial Monitor on your
computer
 pinMode(pin, mode);
◦ Configures a digital pin to read (input) or
write (output) a digital value
 digitalRead(pin);
◦ Reads a digital value (HIGH or LOW) on a
pin set for input
 digitalWrite(pin, value);
◦ Writes the digital value (HIGH or LOW) to a
pin set for output

18. How arduino program runs?
 Arduino programs run on two basic sections.
 void setup() {
 //setup motors, sensors etc
 }
 void loop() {
 // get information from sensors
 // send commands to motors
 }

19. SET UP
 The setup section is used for
assigning input and outputs
(Examples: motors, LED’s, sensors
etc) to ports on the Arduino
 It also specifies whether the device is
OUTPUT or INPUT
 To do this we use the command
“pinMode”

20.  void setup()
 {
pinMode(9, OUTPUT);
 } Input or
output
port #

21. void loop() { Port # from setup
digitalWrite(9, HIGH);
delay(1000);
digitalWrite(9, LOW);
delay(1000);
} Wait for 1 second
or 1000 milliseconds
Wait for 1 second
Port # from se
Turn the LED on
or off

22. How LED blinks?
 void setup()
 {
 pinMode(77, OUTPUT); //configure pin 77
as output
 }
 // blink an LED once
 void blink1()
 {
 digitalWrite(77,HIGH); // turn the LED on
 delay(500); // wait 500 milliseconds
 digitalWrite(77,LOW); // turn the LED off
 delay(500); // wait 500 milliseconds
 }

23. How to create infinite loops?
void loop() //blink a LED
repeatedly
{
digitalWrite(77,HIGH); // turn
the LED on
delay(500); // wait 500
milliseconds
digitalWrite(77,LOW); // turn
the LED off
delay(500); // wait 500
milliseconds
}

24. Reading data from arduino
void setup()
{
Serial.begin(9600);
}
void serialtest()
{
int i;
for(i=0; i<10; i++)
Serial.println(i);
}