This document provides information about the Arduino workshop. It discusses Arduino boards and their components. It describes the Arduino IDE and basic code structure using functions like pinMode(), digitalWrite(), and delay(). It also explains programming concepts like variables, loops, and using sensors and actuators with digital and analog input/output pins.

1. Workshop
Makey
Makey
(Arduino)
Jelle.saldien@howest.be

2. Arduino

3. Principle
Sensors
READ
Your
Sketch
[C]
inputs
UPLOAD
ARDUINO
ATmega328
COMMUNICATE
outputs
Actuators
WRITE

4. Examples

5. Examples

6. Examples

7. Arduino
Board

8. Arduino
Board
Microcontroller ATmega328
Opera-ng
Voltage 5
V
Input
Voltage
(recommended) 7-­‐12
V
Input
Voltage
(limits) 6-­‐20
V
Digital
I/O
Pins 14
(of
which
6
provide
PWM
output)
Analog
Input
Pins 6
DC
Current
per
I/O
Pin 40
mA
DC
Current
for
3.3V
Pin 50
mA
32
KB
(ATmega328)
of
which
2
KB
used
by
Flash
Memory
bootloader
SRAM 2
KB
(ATmega328)
EEPROM 1
KB
(ATmega328)
Clock
Speed 16
MHz

9. Arduino
IDE
• IDE:
– Integrated
– Development
– Environment

10. Code
Structure:
setup
func`on
setup
func`on
is
executed
only
once
at
the
start
10

11. Code
Structure:
loop
func`on
loop
func`on
is
repeated
indefinitely
11

12. Code
pinMode(13, Output)!
prepare
pin
13
for
outputs
of
voltage
Digital
I/O
Func`ons:
pinMode
digitalWrite
digitalRead
12

13. Code
digitalWrite(13, HIGH)!
Sets
pin
13
to
a
voltage
that
means
“on”
Digital
I/O
Func`ons:
pinMode
digitalWrite
digitalRead
13

14. Code
delay(1000);!
Tells
microcontroller
to
do
nothing
for
1000
ms
=
1
s
Digital
I/O
Func`ons:
pinMode
digitalWrite
digitalRead
14

15. Code
digitalWrite(13, LOW)!
Sets
pin
13
to
voltage
that
means
“off”
Digital
I/O
Func`ons:
pinMode
digitalWrite
digitalRead
15

16. Basic
Programming
• The
pinMode()
func`on
configures
a
pin
as
either
an
input
or
an
output.
To
use
it:
– You
pass
it
the
number
of
the
pin
to
configure
and
the
constant
INPUT
or
OUTPUT.
• pinMode(11,
INPUT);
• pinMode(13,
OUTPUT);
– When
configured
as
an
input,
a
pin
can
detect
the
state
of
a
sensor
like
a
pushbujon.
– As
an
output,
it
can
drive
an
actuator
like
an
LED.

17. Basic
Programming
• The
digitalWrite()
func`ons
outputs
a
value
on
a
pin
(0
–
19).
• Possible
values
are:
– LOW
(0
V)
– HIGH
(5
V)
• For
example:
– digitalWrite(13,
HIGH);
– digitalWrite(11,
LOW);

18. Basic
Programming
• The
digitalRead()
func`on
reads
a
value
on
a
pin
(0
–
19).
• Possible
values
are:
– LOW
(0
V)
– HIGH
(5
V)
• For
example:
– Int
x
=
digitalRead(13);
– Boolean
value
=
digitalRead(11);

19. Basic
Programming
• The
analogWrite()
func`ons
outputs
a
PWM
value
on
a
pin
(3,5,6,9,10,11).
• Possible
values
are:
– 0
(0
V)
– 127
(2,5
V)
– 255
(5
V)
• For
example:
– analogWrite(3,
0);
– analogWrite(11,
200);

20. Basic
Programming
• The
analogRead()
func`ons
reads
analog
value
on
a
pin
(A0
–
A5).
• Possible
values
are:
– 0
(0
V)
– 512
(2,5
V)
– 1024
(5
V)
• For
example:
– Int
value
=
analogRead(0);
– Int
valueSensor
=
analogRead(5);

21. Glossary of Arduino Programming
Terms
Variable
Types:
int
Pos (32767) or neg (-32768) - 2 Bytes
long
Pos (2,147,483,647) or neg (-2,147,483,648) - 4B
float
Floating point math (0,0000001) – 4B
char
Character values: a , b , D , 1 – 1B
boolean
True or false values – 1 bit
21

22. Loops
• Loops allow code to be repeated
– Repeated code goes in a block, surrounded by { }
– for loops
• need a counter
– while loops
need an escape
int • i; // declare counter!
!
for ( i=0; i<=12; i++ ) { // standard structure!
!
Serial.println(i); // send value of i to serial monitor!
!
}!
22

23. Loops
Ini`al
value
of
counter
i=0
only
on
first
pass
through
the
loop
Stopping
test:
Con`nue
while
this
condi`on
is
true
int i; // declare counter!
!
for ( i=0; i<=12; i++ ) { // standard structure!
!
Serial.println(i); // send value of i to serial monitor!
!
}!
Increment:
How
to
change
i
on
each
pass
through
the
loop
23

24. Loops
Common
loop:
increment
by
one
for ( i=0; i<=12; i++ ) { // increment by one!
... code block goes here!
}!
Common
loop:
increment
by
two
for ( i=0; i<=12; i+=2 ) { // increment by two!
... code block goes here!
}!
Decrement
by
one
for ( i=12; i>=0; i-- ) { // decrement by one!
... code block goes here!
}!
24

25. Input
Bujon
Pin
2
void setup()
{
pinMode(13, OUTPUT);
// declare LED as output
pinMode(2, INPUT);
// declare switch as input
}
void loop()
{
if (digitalRead(2) == HIGH)
// check if input is HIGH
{
digitalWrite(13, HIGH);
// turns the LED on
delay(1000);
// pause for 1 second
digitalWrite(13, LOW);
// turns the LED off
delay(1000);
// pause for 1 second
}
}

26. hjp://processing.org/
Now
connect
with
Processing...
hjp://io.workspace.howest.be/Workshop/MM.zip
Ref:
GeJng
Started
with
Processing
–
Casey
Reas
&
Ben
Fry
(O’REILLY
–
2010)

27. What
is
Processing
?
Create
images,
anima`ons
and
interac`ons
through
“sketching”
with
code

28. What
is
Processing
?
Software
Prototyping_

29. What
is
Processing
?

30. Family
Tree

31. Assignment
for
today...
DESIGN
YOUR
ENTERTAINMENT
SYSTEM

32. Example
running
zelda

33. Example
Kirby’s
flying
adventure

34. Example
threadmill
supermario

35. Example
Smoking
IR-­‐Gun

36. Principle
for
game
interface
Sensors
READ
Your
Sketch
[C]
inputs
UPLOAD
ARDUINO
ATmega328
COMMUNICATE
outputs
Actuators
WRITE

37. Principle
for
game
interface
Sensors
READ
Bujon_
communi-­‐
ca`on.pde
inputs
UPLOAD
ARDUINO
ATmega328
COMMUNICATE
outputs
Nintendo
NES
Processing
(emulator)

38. Bujon_communica`on.pde
• hjp://www.arduino.cc/en/Tutorial/Bujon
void setup() {
Serial.begin(9600);
pinMode(ledPin, OUTPUT);
pinMode(buttonPin, INPUT);
}
void loop(){
buttonState = digitalRead(buttonPin);
if (buttonState == HIGH) {
Serial.print(‘LEFT', BYTE);
digitalWrite(ledPin, HIGH);
}
else {
Serial.print(‘RIGHT', BYTE);
digitalWrite(ledPin, LOW);
}
delay(15);
}

39. Processing
Code
• basic_example_vNESp5_arduino.pde

40. Resources
• hjp://www.arduino.cc/
• hjp://processing.org/
• hjp://mcanet.info/vNESp5/
• hjp://io.workspace.howest.be/Workshop/MM.zip