Introduction to arduino

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INTRODUCTION

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WHAT IS ARDUINO?
Arduino is an open-source electronics platform based on easy-to-use hardware and software. It’s intended for anyone making interactive projects.

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HISTORY
Arduino project was made by a team of students and teachers from the interaction design school of Ivrea.
http://interactionivrea.org/ en/index.asp

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Gianluca Martino, David Mellis, David Cuartielles,
Tom Igoe, Massimo Banzi et Nicholas Zambetti.
HISTORY

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The inspiration come from processing, a programation language develloped in 2001 by Casey Reas and Ben Fry, two students of John Maeda from M.I.T..
HISTORY

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ADVANTAGES
* Simple to use
* Cheap
* Open Source
* Multi-plateforms

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PHILOSOPHY &
COMMUNITY
Arduino project is based on a principle of open Source which has help it to have a quick developpement thanks to a community who work on the software and hardware.
There are several tools to share and learn:
- Blog (http://blog.arduino.cc/)
- Forum (http://forum.arduino.cc/)
- Wiki (http://playground.arduino.cc/)

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ARDUINO DOCUMENTARY

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ARDUINO = TWO THINGS
Hardware for prototyping
Software for programing

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PLATEFORM (HARDWARE)
Arduino is like a brain who going to make logical connections between an action and a sense.
For example, if we read a text:
The eyes (INPUT) see the image of the text, the brain (ARDUINO) read and make the interpretation for the mouth (OUTPUT) who’s make the sound of the reading text.

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PLATEFORM (HARDWARE)
Different type of card

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PLATEFORM (HARDWARE)
input USB
power

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PLATEFORM (HARDWARE)
Processor

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PLATEFORM (HARDWARE)
+5V and +3,3V
digital PWM
ground -
analog
digital

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PROGRAMMATION (SOFTWARE)
Go on the website Arduino

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PROGRAMMATION (SOFTWARE)
Download the software

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PROGRAMMATION (SOFTWARE)
Run the installer if you computer need it, download FTDI drivers.

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RESTART COMPUTER

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FIRST STEP
Software

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FIRST STEP
Choose the good card.

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FIRST STEP
Choose the serial port

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FIRST STEP
Select example “Blink”:
examples/
Basics/
Blink

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HOW WORKS A CODE?
Like a recipe

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HOW WORKS A CODE?
ingredients
tools
preparation

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A LITTLE BIT OF LANGUAGE
pinMode() – Define your pin as an input or output.
digitalWrite() – Send a binary value (high/low) to a pin.
digitalRead() – Read a binary value (high/low) from a pin.
analogRead() – Read a analogic value (from 0 to 1024) from a pin.
analogWrite() – Send a analogic value (from 0 to 255) to a pin.
delay() – allow a to make a break, arduino clock count in milliseconds.

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FIRST INTERACTION
Plug your led like the image.

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HOW TO PLUG A LED?
Led have a way to plug it, one negative leg and one positive leg. Three ways to find the good way:
- Usually longest leg is +
- Truncate side is -
- The biggest part inside the led is -
+
+
-
-

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int led = 13;
void setup() {
pinMode(led, OUTPUT);
}
void loop() {
digitalWrite(led, HIGH);
delay(1000);
digitalWrite(led, LOW);
delay(1000);
}
FIRST INTERACTION
Try to change delay.

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FIRST EXERCISE

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FIRST EXERCISE
Send a illuminated message using morse code.

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PWM
Plug your led like the image.

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WHAT IS A RESITOR?

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PWM

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PWM
Select example “Fade”:
examples/
Basics/
Fade

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int led = 9;
int brightness = 0;
int fadeAmount = 5;
void setup() {
pinMode(led, OUTPUT);
}
void loop() {
analogWrite(led, brightness);
brightness = brightness + fadeAmount;
if (brightness == 0 || brightness == 255) {
fadeAmount = -fadeAmount ;
}
delay(30);
}
PWM
Try to change variables.

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CONNECT A POTENTIOMETER

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WHAT IS A POTENTIOMETER?
resistive part
1
2
GND
variable part

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READ THE VALUE OF THE POTENTIOMETER WITH ARDUINO

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USE THIS VALUES
TO LIGHT UP AN LED

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REPLACE POTENTIOMETER BY YOUR SOFT SENSOR