The document provides an overview of Arduino, an open-source electronics platform for interactive projects, detailing the setup, programming, and hardware aspects involved. It covers the workflow for creating projects using the Arduino IDE, including code writing, uploading, and debugging, along with a description of various projects that can be built using an Arduino starter kit. Additionally, it shares personal experiences and links to further resources for enthusiasts looking to explore Arduino projects.

1. Get your hands dirty with Arduino
Savio Dimatteo
Heidelberg Web Enthusiasts Meetup - 10 Dec 2014

2. Arduino

3. Arduino
from http://arduino.cc
“Arduino is an open-source electronics
platform based on easy-to-use hardware and
software. It's intended for anyone making
interactive projects.”
IDE
+
Board

4. Making a project
1. wire components on a breadboard and
connect them to arduino I/O pins

5. Making a project
2. write code into the IDE to read/write from/to
Arduino pins

6. Making a project
3. compile & upload code into a chip on the
board machine code

7. Many Models

8. Many Models

9. Many Specs
Parameters
● Input voltage
● CPU Speed
● # Analog I/O pins
● # Digital I/O pins
● FLASH capacity
● EEPROM capacity
● SRAM capacity
● USB interface
● UART

10. Many Specs
Parameters
● Input voltage
Cost: ~4€
● USB interface
● UART

11. Arduino UNO
Cost: ~25€

12. Arduino shields

13. Arduino IDE

14. Arduino code
● language is an implementation of Wiring
● syntax looks like a mix of Java/C/C++
● feels almost like a scripting language...
● code preprocessed into C++
● compiled and linked against Arduino libraries
● machine code into a file ready for upload

15. Typical workflow
● write code
● compile
● connect Arduino via USB
● upload
● see if it works

16. Debugging
● write code using Serial.print(...)
● compile
● connect Arduino via USB
● upload
● open serial monitor
● see if it works, check serial monitor output

17. Get started
http://www.google.com http://www.instructables.com/
http://playground.arduino.cc

18. Starter kit (~100€)
● Arduino Projects Book
● Arduino UNO
● USB cable
● Breadboard
● Wooden Base
● 9v battery snap
● Wires
● Photoresistors, potentiometers, pushbuttons,
sensors, LCD display, LEDs, Transistors,
Optocouplers, Piezo, Small Motors, Diodes,
Resistors...

19. Blink

20. Uploading blink

21. Blink uploaded

22. Hello, World!

23. Hello, World!

24. Projects book
● 01 GET TO KNOW YOUR TOOLS an introduction to the concepts you'll need to use this kit
● 02 SPACESHIP INTERFACE design the control panel for your starship
● 03 LOVE-O-METER measure how hot-blooded you are
● 04 COLOR MIXING LAMP produce any color with a lamp that uses light as an input
● 05 MOOD CUE clue people in to how you're doing
● 06 LIGHT THEREMIN create a musical instrument you play by waving your hands
● 07 KEYBOARD INSTRUMENT play music and make some noise with this keyboard
● 08 DIGITAL HOURGLASS a light-up hourglass that can stop you from working too much
● 09 MOTORIZED PINWHEEL a colored wheel that will make your head spin
● 10 ZOETROPE create a mechanical animation you can play forward or reverse
● 11 CRYSTAL BALL a mystical tour to answer all your tough questions
● 12 KNOCK LOCK tap out the secret code to open the door
● 13 TOUCHY-FEEL LAMP a lamp that responds to your touch
● 14 TWEAK THE ARDUINO LOGO control your personal computer from your Arduino
● 15 HACKING BUTTONS create a master control for all your devices!

25. What did I do with Arduino

26. Got rid of IDE
● mkdir blink && cd blink && ino init
● vim src/sketch.ino
● … edit … save ...
● :!ino build
● :!ino upload
● :!ino serial (optional)

27. My first project

28. Trampolino
● hardest hardware part:
insert a straw at the base of a bottle

29. Trampolino
● hardest hardware part:
insert a straw at the base of a bottle
● hardest software part:
try to be precise when pouring the same
amount of water...

30. Problem
● water doesn’t flow at a constant rate!

31. Problem
How many seconds to
pour for, to get the same
unit of water out of the
straw?

32. Possible Solution
I. measure flow rate
II. estimate pressure

33. Detecting water
void setup() {
pinMode(9, INPUT);
}
void loop() {
if (digitalRead(9) == LOW) {
// water detected!
}
}

34. “Time through straw”

35. Curve fitting

38. On Facebook...

39. Conclusions
● very easy to get started
● time consuming
● exciting
● expensive
● generally not dangerous

40. Get your hands dirty with Arduino
Thank You
● My Website: http://www.savio.dimatteo.it
● GitHub: https://github.com/darksmo
● Twitter: @darksmo
● E-mail: darksmo@gmail.com
● Trampolino: http://darksmo.github.io/arduino-trampolino/
● Arduino playground: http://playground.arduino.cc