Fabric RobotsWuffy intro to your basic companion

bit.ly/FabricRobotsDownload the slides at this link

Let’s have Fun learning!

Today’s Program

Make Eyes

Make Eyes Interact

Make it Move, part 1

Sketch your Design!

Make it Move, part 2

Making Your Robot!

Share and Tell!

Let’s Make Some Eyes!

Plug in a LED!

Long end into hole

marked “13”.

This is the pin number –

Pin 13.

Short end into hole

marked “GND”.

Long

EndShort

End

Open up Arduino!

Robots are Silly!

You need to tell the Robot what parts it has

This is called “setting up”

Robots only do what you tell it to do.

These are “Commands”.

Type this into Arduino!

void setup () {

pinMode (13, OUTPUT);

}

void loop() {

digitalWrite (13, HIGH);

delay (1000);

digitalWrite (13, LOW);

}

Set Up

Commands

Arduino Grammar

void setup () {

pinMode (13, OUTPUT);

}

void loop() {

digitalWrite (13, HIGH);

delay (1000);

digitalWrite (13, LOW);

}

Set Up

Commands

If you open a

bracket…

… you must

close it

Every

“sentence”

ends with “;”

Lights, Setup and Commands

LEDs are lights we can control

Set up

pinMode (Pin_Number, OUTPUT);

Commands

digitalWrite (Pin_Number, HIGH/LOW);

digitalRead (Pin_Number);

Arduino Code is Simple!

Arduino code is split into 3 parts

1. Global variables

2. Set up

3. Functions (where you give it

commands)

[Global Variables go here]

Void setup() {

[Set up goes here]

}

Void loop() {

[Commands go here]

}

Let’s Make the Eyes Interactive!

Looks complex? No fear!

Trigger: Push button

Button can trigger other commands!

Set up

pinMode (Pin_Number, INPUT);

Commands

digitalRead (Pin_Number);

Push to Start – Pt1

const int buttonPin = 2;

int buttonState = LOW;

void setup () {

pinMode (buttonPin, INPUT);

}

Set Up

Global

Variable

Push to Start – Pt2

void loop () {

buttonState = digitalRead (buttonPin);

if (buttonState == HIGH) {

COMMANDS When Switch is on GO HERE!

}

else {

COMMANDS When Switch is off GO HERE!

}

}

Commands

Let’s Make the Robot Move!

Servos make your Robot move!

Servos are the “muscles” of a robot.

Servos can only turn in circles

Servos have to be declared as a Global variable

Declare

#include “Servo.h”

Servo Servo_Name;

Set up

Servo_Name.attach (Pin_Number);

Commands

Servo_Name.write (angle);

Let’s Connect the Servo!

Move that Servo! Pt1

const int TailPin = 9;

#include “Servo.h”

Servo Tail;

void setup() {

Tail.attach(TailPin);

}

Set Up

Global

Variable

Move that Servo! Pt2

void loop () {

Tail.write (30);

delay (500);

Tail.write (150);

delay (500);

Tail.write (0);

delay (500);

Tail.write (180);

}

How do we wave?

Commands

Angles

Waving! Pt1

Let’s break down how to wave!

1. Arm goes left

2. Arm stops

3. Arm goes right

4. Arm stops

Rephrase it!

1. Arm goes (1 degree) left every

second

2. Arm stops at 180 degrees

3. Arm goes (1 degree) right every

second

4. Arm stops at 0 degrees

Waving! Pt2

Int angle = 0;

void loop () {

for (angle = 0; angle <180; angle++) {

Tail.write(angle);

delay (15);

}

}

How do we wave backwards?

Commands

Global

Variable

More Robots

Extra Resources

Blinking the Eyes

Let’s break down how to blink!

1. Open eyes

2. Wait a second

3. Close eyes

4. Wait a second

5. Open eyes

Rephrase it!

1. (If eyes are closed) Open eyes

2. Wait half a second

3. (If eyes are open) Close eyes

4. Wait half a second

5. (If eyes are closed) Open eyes