Mid-Semester Presentation Senior Design I February 18, 2010

Appliance Texter Team Casey Cook Perriea Wiley Steven Howell Steven Cullen Raymond Winton

Outline Introduction Problem Solution Constraints Technical Practical Hardware Wiring Configuration Technical Tradeoffs Timeline Expectations Project Progression

Problem (s) Power Consumption Safety Worries Time Consumption

Solution Allow consumers the ability to remotely monitor and control the state of their home appliances. Wireless Communication via (SMS) Wireless Controls via (SMS)

-Hardware Block Diagram- System Overview

Project Constraints Technical Practical

Technical Constraints

Practical Constraints

Social – Simple: Many Service Providers

Easy Setup Plug it in Insert sim card Text User – Friendly Majority of population knows how to text

Manufacturability - Size Appeal Users don’t want a bulky product. Compatibility Must fit the NEMA 5 standard

Project Trade - Offs

Power Source Power sourcePriceLongevityComplexityMantenance SwitchingLowHighLowNone BatteryMediumLowMedium

Switch Selection Price RangeSizeReliability Solid State RelayHigh($35.20)SmallHigh Mechanical RelayLow($2.50)Medium TriacMedium($9.07)MediumHigh

Service Network PriceSetupPlansProviders GsmLowestEasyMany CdmaMediumComplexFew

Timeline JanuaryFebuaryMarchApril Research Hardware Testing Programming Prototype Testing Optimizing

Progression

Parts - Info GSM Module Relay Current SensorPower Supply

Testing

References [1] Digi-Key Power Supply 3.3V, 2009 [Online] Available: [2] Quad Band GSM864 Module, 2009 [Online] Available: [3]Tyco Electronics Catalog Issued 3-03 [Online] Available &RQPN= [4] Jumping the Colts’ route, Jed Jacobsohn/Getty Images 2010 [Online] Available [5] Studies show Latinos Climb Socio-Economic Ladder, Walter Ewing. [Online] Available: [6] economic-ladder-of-success/ [7] [8] [9] [10] [11] [12]

Questions?