Design Review Presentation

EE 396/496 Joint ProjectMarch 11, 2006

Group Group MembersMembers

Krystina Tabangcura

Electro-Physics TrackPrevious Projects:

[ 296 : Course Scheduler ]

Paul RamirezComputers

Previous Projects:[ 296 : M & M Mighty Mouse ][ 396 :

TBD ]

Melanie LocquiaoSystems

Previous Projects[ 296 : All Access Unit ]

Allen PascualSystems

Previous Projects[ 296 : All Access Unit ]

System Designer / System Designer / TransmittingTransmitting

Team Captain / Team Captain / ReceivingReceiving

Software Programmer / Software Programmer / uC ReceivinguC Receiving

G. Designer / uC G. Designer / uC TransmitingTransmiting

Assistive Assistive TechnologyTechnology

Focus of Archimedes Hawaii Project: “Universal Design”

Any person with any disability being able to use any IT device (AT)

Archimedes Archimedes Hawaii &Hawaii &

Examples of Assistive Technology

OverviewOverview

Project Objective:“Design and develop a multi-channel, wireless

communication system for the purpose of modifying toys for children with disabilities”

Purpose:-To afford children with disabilities the same

opportunities -To provide a cheaper alternative to current options

-Allow anyone to be able to modify toys

Representation of Prototype (Push Button

Configuration) Final Result

Multi-Switch ToyEach switch on toy-end operated by a different

switch on user-end

OverviewOverview

System System DiagramDiagram

SwitchXBee

ModulePicaxe ToyPicaxe

XBeeModule

ZigBee Protocol

Toy ModuleSwitch Module

Final Result:

Any switch operating any toy

XBee OEM RF XBee OEM RF ModuleModuleTesting Testing

CommunicationCommunication

Switch End

Toy End

Picaxe Picaxe MicrocontrolleMicrocontrolle

rrTesting Testing

CommunicationCommunication

Pic

axe

18X

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

1

2

3

5V

0V

Res

et

47k

10k

22k

SerialDownload

Cable

•BASIC Review

•“Baby Step” Programming

Picaxe Picaxe MicrocontrolleMicrocontrolle

rrTesting Testing

CommunicationCommunication

Picaxe Picaxe MicrocontrolleMicrocontrolle

rrTesting Testing

CommunicationCommunication

Transmitting

•DC Input (Input Transducer -> uC)

•Serial Output (uC -> Xbee)

Receiving

•Serial Input (Xbee -> uC)

•DC output (uC -> Output Transducer)

Toy ModuleToy ModulePicaxe

18X

1

2

3

4

5

6

7

8

9

18

17

16

15

14

13

12

11

10

3.3V

GND

10k

XBeeModule

1

10

23456789

20

11

1918171615141312

10k

10k

5V

0111111111

1Picaxe

XBeeModule

Toy

Problems and Problems and Outstanding Outstanding

IssuesIssuesPROBLEMS:

•Not knowing what to do = Wasting time

•Conflicting schedules

•Breaking things

•Not finishing the project

WHAT NEEDS TO BE DONE:

•Getting our modules to communicate!!!!

•Researching the different user interfaces and toy switches

•Connecting modules to the toys and switches

•Testing

•Transfer modules from breadboard to PCB

TimelineTimelineID Task Name Start Finish Duration

Dec 2005 Jan 2006 Feb 2006

12/11 12/18 12/25 1/1 1/8 1/15 1/22 1/29

1 81d4/28/20061/6/2006Build Wireless Communication System

2 7d1/16/20061/6/2006 Select Wireless Protocol (Write Proposal)

3 7d2/2/20061/25/2006 Order Development Kit

4 12d2/10/20061/26/2006 Research End Components

9 36d5/1/20063/13/2006 Refining Modules

11 20d3/31/20063/6/2006Switch Module

12 7d3/15/20063/7/2006 Research Different User Interfaces

20d4/3/20063/7/2006Toy Module

Mar 2006 Apr 2006

2/5 2/12 2/19 2/26 3/5 3/12 3/19 3/26 4/2 4/9 4/16 4/23

16

15

17

18

20

7d3/15/20063/7/2006 Research Different Toy Switches

10

14

13d4/3/20063/16/2006 Receiving Outputs

60d5/5/20062/13/2006User Documentation

36d4/3/20062/13/2006 First Draft

May 2006

4/30 5/7 5/14

13 13d4/3/20063/16/2006 Processing Inputs

22

21

25d5/5/20064/3/2006 Final Draft

19

8

7 20d3/31/20063/6/2006 Switch Module (See below for details)

20d3/31/20063/6/2006 Toy Module (See below for details)

6

5 6d3/2/20062/23/2006 Test communication between picaxes

6d3/2/20062/23/2006 Text communication between XBee modules

QUESTIONs?

Visit the Wireless Xbee website at : Visit the Wireless Xbee website at : http://www2.hawaii.edu/~allencha