1. Hello real world!
An introduction to physical computing
Tom Luyten & Gaston Jamin

3. •
•
•
•
•
•
Blinks LEDS
Drives motors
Makes sound
Senses your presence
Detects gas
…

4. = electronic prototyping
tool for designers

5. Source: Getting started with Arduino – Massimo Banzi
Anatomy of an interactive device

6. Some possible hardware sensors:
• potentiometer
• Sliding potentiometer
• Switch
• Tiltswitch
• Accelerometer
• Proximity sensor
• Photocell
• Flexometer
• Camera
• WII
• Kinect
• Force sensing sensor
• Temperature sensor
• Gas sensor
• Barometric sensor
• Humidity sensor
• RFID reader
• GPS
• Reed switch
• Gyroscope
• ...

7. Some possible hardware actuators:
• Vibration motor
• Regular motor
• Sound
• Muscle stimulus
• Light
• images
• The web
• Pump
• Solenoid
• Resistance wire
• Relais
• Radio frequency
• …

8. Arduino
computer
cell phone
cloud
tablet
Source: Getting started with Arduino – Massimo Banzi
Boundaries are not defined
Example: a tablet can be it’s own sensor and actuator, or
can be paired/extended.

9. workshop

10. Digital in/outputs + PWM*
USB connection
processor
Power source
(external)
5V + ground
*PWM
pulse width modulation : digital signal mimmicing an analogue one
used to fade lights, drive motors, create tone,…
Analog in/outputs

11. The arduino way
“the Arduino philosophy is based on making designs rather
than talking about them. It is a constant search for faster
and more powerful ways to build better prototypes. We
have explored many prototyping techniques and developed
ways of thinking with our hands.: • Prototyping
•
•
•
•
•
Tinkering
Patching
Circuit bending
Hacking
collaboration

12. Electronics 101

13. • Current is a circle – starts at an i/o port, flows to GRND
• Use red for positive wires (from output)
• Use black for negative wires (to GRND)
• Look it up, before you hook it up

14. Get the software
• Current is a circle – starts at an i/o port, flows to GRND
• Look it up,http://www.arduino.cc
before you hook it up

17. http://arduino.cc/en/Gui
de/Environment

18. Standalone example

19. Hello world! (=blink)

20. Hello world! (=blink)
File  examples  basics  BLINK
/*
Blink
Turns on an LED on for one second, then off for one second, repeatedly.
This example code is in the public domain.
*/
// Pin 13 has an LED connected on most Arduino boards.
// give it a name:
int led = 13;
// the setup routine runs once when you press reset:
void setup() {
// initialize the digital pin as an output.
pinMode(led, OUTPUT);
}
// the loop routine runs over and over again forever:
void loop() {
digitalWrite(led, HIGH); // turn the LED on (HIGH is the voltage level)
delay(1000);
// wait for a second
digitalWrite(led, LOW); // turn the LED off by making the voltage LOW
delay(1000);
// wait for a second
}

21. Hello world! (=blink)
Plug in
Press play…
HELLO WORLD!

22. Producing sound
Image: adafruit learning systems

23. Producing sound
Image: adafruit learning systems

24. Producing sound
http://learn.adafruit.com/adafruit-arduino-lesson-10-making-sounds/playing-a-scale
/*
Adafruit Arduino - Lesson 10. Simple Sounds
*/
int speakerPin = 12;
int numTones = 10;
int tones[] = {261, 277, 294, 311, 330, 349, 370, 392, 415, 440};
//
mid C C# D D# E F F# G G# A
void setup()
{
for (int i = 0; i < numTones; i++)
{
tone(speakerPin, tones[i]);
delay(500);
}
noTone(speakerPin);
}
void loop()
{
}

25. Sensing distance
http://arduino.cc/en/Tutorial/Ping?from=Tutorial.UltrasoundSensor

26. Sensing distance
File  examples  sensors  PING

27. Combination

28. Combination
Blackboard

29. Make Arduino talk to your computer

30. Make Arduino talk to your computer
http://www.processing.org

31. Make Arduino talk to your computer
http://www.processing.org

32. Make Arduino talk to your computer
http://www.processing.org

33. Serial communication send

34. Serial communication receive

36. This is just a start
There are tons of
• Tutorials
• Code snippets
• Wiring diagrams
Available to aid you in your experiments
See the Blackboard environment for links.

37. Next week…

38. Tinker, hack, break, rebuild, connect and explore!