getting real with connected devices presentation

IxDA 14

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Thursday, February 6, 14

IxDA 14 Getting Real with Connected Devices

A bit about us...

IliaSebStuartTimVincentJonny

We transform the way people experience brands

R/GA Make Day

Why prototype?

Experience wins over specification

10From Prototyping, A Practioners Guide by Todd Zaki Warfel

Reduces misinterpretation

Saves time, money & effort

Reduces waste

Prototyping is generative

The opportunity to craft

Design by making

ToolkitBriefIdeateBuildImprove

You won’t learn to be an expert coder

You might not understand everything

You’ll expand your design vocabulary

You’ll see the value in building to learn

Arduino

Arduino = Hardware + Software

The hardware

Arduino Board

Analog inputonly

Digital input & output

Inputs / Sensors

TiltSensor

PushButtons

Potentiometer(variable resistor)

Photocell(light sensor)

FlameSensor

TemperatureSensor

Infraredreceivermodule

ANALOG DIGITAL

Outputs / Actuators

Buzzers LED Matrix Multi-colour LEDNixie Tube LED

Breadboard

ResistorsUSBCable

BatteryCase

RemoteControl

Installation

Installing Arduino

Mac:http://arduino.cc/en/Guide/MacOSX

Windows:http://arduino.cc/en/Guide/Windows

The Code

Basics

Variable - Store things

String myName = “Sebastien”; // a string

int myAge = 10; // an integer

float myHight = 1.78; // a float

bool isMale = true; // a boolean

If / Else Statements - Conditions

int myAge = 10;String myName = “”;

If(myAge==20) // false{ myName = “Sebastien”;}else // do this now{ myName = “Ilia”;}

Functions

Self-contained bit of code that can be called whenever. It

can take parameters and return a value.

Important uses:

- Encapsulate code/functionality

- Stops code duplication

Functions

void storeMyName(){ myName = “Sebastien”;}

storeMyName(); // stores Sebastien in myName

String getMyName(){ return “Sebastien”;}

getMyName(); // returns Sebastien

int multiply(int firstNumber, int secondNumber){ int result = firstNumber * secondNumber; return result;}

multiply( 2, 2); // returns 4

Basic Arduino Sketch

The setup() function is called when a sketch starts. Use it to initialize variables, pin modes, start using libraries, etc. The setup function will only run once, after each power up or reset of the Arduino board.

The loop() function does precisely what its name suggests, and loops consecutively, allowing your program to change and respond. Use it to actively control the Arduino board.

Debugging

void setup(){Serial.begin(9600);// opens serial port, sets data rate to 9600 bps}

void loop(){Serial.println("Hello World!");}

Exercise 1:Flashing LED

Flashing LED - schematic

Flashing LED - Arduino code

int ledPin=10; //set IO pin of LED in control

void setup(){

pinMode(ledPin,OUTPUT); //set digital pinIO is OUTPUT

}void loop(){

digitalWrite(ledPin,HIGH); //set PIN 10to HIGHdelay(1000); //delay 1000ms, 1000ms = 1sdigitalWrite(ledPin,LOW); //set PIN 10 is LOW, 0Vdelay(1000); //delay 1000ms, 1000ms = 1s

The Brief

A new music streaming service wants to create a ‘connected device’ that will be able to interact with the service.

They want to create an experience that is new, and fun. They want to launch within a year and they want to keep the price point around €100

You have access to any sensors in your kit, plus an accelerometer (that measures angles of rotations).

The Cube

The Idea

A cube that controls music with gestures

Wireless

Directly connected to music streaming service

No need for a computer or other device

Connects to a wireless speaker

Designing the prototype

Wireless

Directly connected to music streaming service

No need for a computer or other device

Designing the prototype

Connect via USB

Play MP3s instead

Connect to computer

Arduino + Processing

Processing

Speaking to Arduino

via USB

The Environment

Building the Cube

The Sensor

Accellerometer + Gyro: MPU6050

Buildingthe Circuit

The Components

Putting it Together

Accelerometer+ Gyro

VCCGNDSCLSDA

Arduino

3.3VGNDA5A4

The Files

The Arduino Files

MPU6050_DMP6.ino

MPU6050.h

MPU6050.cpp

I2Cdev.h

I2Cdev.ccp

helper_3dmath.h

MPU6050_6Axis_MotionApps20.h

The main Arduino program

that the other files support

To facilitate communication

with the sensor

These 2 files are math

helpers to get the rotations

https://github.com/jrowberg/i2cdevlib/tree/master/Arduino

1. Getting data from the sensor with the Arduino

2. Reading data from Ardiuno with Processing

3. Using the data in Processing

Buildingthe Box

Building the Box

Testing

How can it be improved?

Usability issues?

Communication of functionality?

Better feedback?

Other forms?

Unexpected ideas?

Additional functionlity?

How to navigate playlists?

Sketching

Re-using the interaction model

Stay inTouch

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