How to Build a Digital-Physical System-Lab

Assegid KidanéFall 2014

Web and Contact Info

http://bdps-f14.wikispaces.asu.edu assegid@asu.edu 480 309 2686 (cell) Stauffers B room 220a

Outline

Week 1- Introduction, overview, breadboard, safety, rules, Fritzing, Components, Arduino IDE

Week 2 - Ohms law, conventions, test equipment, Wire stripping and soldering, LED blinking

Week 3 - Arduino hardware and software Week 4 and on - Various functions and

combination setups

The Big Picture

Steps

Define problem and goals clearly Develop flowchart and algorithm Select main components Develop hardware and software Put it together and test Iterate until goals are met

Circuit Elements

Resisitors, Capacitors, Diodes, Transistors Integrated Circuits

Subgroup of ICs Microcontrollers (pic, Atmega etc.)

Microcontroller development boards Arduino

Breadboarding

Provides connectivity Allows reconfiguration

Connectivity Under the Hood

Wiring Pattern

Soldering

Make permanent connections on the PCB

Test Equipment

Multimeter Oscilloscope Signal Generator Power Supply Logic Analyzer Hand tools

Multimeter

Use to measure Voltage, Current and Resistance

Some measure frequency, capacitance, temperature and more

*** Caution*** Take extra care when measuring current Start with a selection higher than the highest

expected value

General Architecture

Participatory Environment ( Installation, Performance)

Sensing Data Processing Actuation and Feedback

environment

sensing Computing

Feedback & Actuators

Sensors

Motion Position, Acceleration, Rotation

Pressure Light Sound Temperature Biometric sensors

Some Sensors

Data Processing

Desktop, Laptop Single Board Computer (SBC, Raspberry pi,

Beagleboard) Physical Computing Platform (Arduino,

Parallax, mbed) Develop using a microcontroller (Pic, Atmega,

8051)

Some Processors

Introduction to the Arduino Environment

Arduino Uno Arduino mini pro (5V, 3.3V, 8Mhz, 16Mhz) Arduino Mega Arduino Nano Arduino Due Arduino Yun ATmega Micro controllers Bootloader Installed Open Source IDE for Windows, OSx and Linux

Arduino Uno

14 Digital I/Os 6 Analog Inputs 6 PWM Outputs USB Connectivity and Programming USB bus or External Power 16MHz Clock and 32KB Flash Memory

Arduino Uno Cont’d

USB Port

External Power

Digital I/Os, PWM, Serial Port

Analog InputsPower and Reset

Arduino Programming

Simple Fast No programming hardware needed*

Sample Code

Read a sensor Data = analogRead(pin)

Control analog devices(motor, light, etc) analogWrite(pin, strength)

Read a digital signal digitalRead(pin)

Output a digital signal digitalWrite(pin, HIGH)

Output & Actuation

Video displays, Projectors Speakers Lights Motors Haptic feedback devices

Actuators & Output Devices

Max/MSP

Allows sophisticated audio and video manipulation and feedback

Puredata for an OpenSource alternative with little graphics

Many objects exist to interface with almost anything. Either direct or from 3rd party developers.

Maker Shed Ultimate Kit

Arduino Uno LEDs (6) RGB LEDs (3) Servo motor LCD Screen FSR Piezzo

CDS light sensor Mini breadboard Vibrating motor Push button switch Tilt sensor Speaker 10K potentiometer

More Modules...

Safety Considerations

Avoid cobweb wiring Monitor current consumption when using power

supplies Use solid wires on breadboards

Resources

http://www.arduino.cc/ http://makezine.com/ http://www.instructables.com/ http://www.sparkfun.com/ http://www.digikey.com/ Books

Physical Computing, O'Sullivan and Igoe The Art of Electronics, Horowitz and Hill

Questions??

Thank you