Sketching with Hardware

Day 2

GIF by Robin Davey, http://robindavey.co.uk/

Course Overview

1	Monday	Fundamentals, Keyboard Hacking, Experiments
2	Tuesday	Arduino, Project Topic
3	Wednesday	Brainstorming Day
4	Thursday	Concept Presentation, Own Project
5	Friday	Own Project
	Saturday	—
	Sunday	—
6	Monday	Own Project
7	Tuesday	Own Project
8	Wednesday	Final Presentation, Wrap Up

Day 2

09:00	Arduino Introduction
10:00	Analog IO
11:00	Sketching Circuits
12:00	Break
13:00	More Sensors
14:00	Whatever you like
15:00	Introduction to our Topic
16:00	Brainstorming Ideas

"Hello, Computer!"

II

Quelle: UTEXAS

Arduino

Image Source: ArduinoArts

Arduino — Connected

Image Source: SirLeech

Arduino provides (some) power

Digital Input/Output

Digital Output

Blinking LED

void setup() {
	pinMode(12, OUTPUT);	// Make pin an output for us
}
void loop() {
	digitalWrite(12, HIGH);	// Set pin to be "+" (on)
	delay(500);
	digitalWrite(12, LOW);	// Set pin to be "-" (off)
	delay(500);
}

Digital Output

High Load!

Digital Output

Transistor / MOSFET

Digital Output

Transistor / MOSFET

Digital Output

Transistor / MOSFET

Digital Input

Pull a pin "up" (+)

void setup() {
	pinMode(2, INPUT);	// Make pin an input for us
}
void loop() {
	value = digitalRead(2);	// Read what's on that pin
}

Digital Input

Pull a pin "down" (-)

void setup() {
	pinMode(2, INPUT);	// Make pin an input for us
	digitalWrite(2, HIGH);	// Activate internal pull-up
}
void loop() {
	value = digitalRead(2);	// Read what's on that pin
}

Digital Input

Using a Bread Board

Analog Input/Output

Arduino Analog Input

int potPin = 2;	// select the input pin for the potentiometer
int ledPin = 13;	 // select the pin for the LED
int val = 0;	 // variable to store the value coming from the sensor

void setup() {
	pinMode(ledPin, OUTPUT);	// declare the ledPin as an OUTPUT
}

void loop() {
	val = analogRead(potPin);	// read the value from the sensor
	digitalWrite(ledPin, HIGH);	// turn the ledPin on
	delay(val);		// stop the program for some time
	digitalWrite(ledPin, LOW);	 // turn the ledPin off
	delay(val);		// stop the program for some time
}