Silver Snake Speaker System Team Silver Snakes Jeff Kelly, Matt Ingel, Ian Picariello November 22, 2011 Capstone Proposal Don Clark

Client Background Capstone Proposal Don Clark Client’s name: Ken (Pooch) Age: Late 20’s Attends the Bridgewell day program in Medford, Massachusetts He has spastic cerebral palsy (Hypertonia) and is non-verbal Needs a communication system he can use in his bed or wheelchair

Objectives Capstone Proposal Don Clark To create a speaker system for patients with CP To give the user a means of communication To give the user the ability to customize their product Easy to operate for any user Portable and durable for use in any configuration (wheelchair, bed, etc)

Functional Diagram Capstone Proposal Don Clark

Block Diagram Capstone Proposal Don Clark

Specifications Capstone Proposal Don Clark Switch Panel (12”x8”x2”) ◦ PIC ( V 220µA 5V) ◦ LCD Display (4.5”x3” 5V 2.5mA 5V) ◦ Total power consumed 13.6mW (only includes PIC and display) ◦ Rechargeable Battery Pack (6V 1600mAh = 9.6Wh) ◦ Panel can run for hours (based on 9.6Wh and 13.6mW consumed) Main Unit (12”x10”x8”) ◦ ISD ( V 25mA 5V) ◦ PIC ( V 220µA 5V) ◦ Amplifier (4-18V 4mA 5V) ◦ Total power consumed 271.1mW (only includes 2 ISDs, PIC, and amplifier) ◦ 120VAC-5VDC adaptor (plugged into wall) Speaker (3.6” diameter 1.1” thickness) ◦ 93 decibel output

Specifications Capstone Proposal Don Clark Chair Unit (12”x8”x8” 45  tilt) ◦ ISD ( V 25mA 5V) ◦ PIC ( V 220µA 5V) ◦ Amplifier (4-18V 4mA 5V) ◦ LCD Display (4.5”x3” 5V 2.5mA 5V) ◦ Total power consumed 284.7mW (only includes 2 ISDs, 2 PICs, amplifier, and display) ◦ Rechargeable Battery Pack (6V 1600mAh = 9.6Wh) ◦ Unit can run for hours (based on 9.6Wh and 284.7mW consumed)

Gantt Chart Capstone Proposal Don Clark

Gantt Chart Capstone Proposal Don Clark

Cost Analysis Capstone Proposal Don Clark

Cost Analysis Capstone Proposal Don Clark